Патент USA US2134818код для вставки
Nov. l, 1938. 2,134,818 J. M. HAI-r AUTOMATICIOIL RETURN SYSTEM FOR TURBINE PUMPS , Filed Maron 27, 1937 » 2 sheets-sheet 1 4748 l ... NOV. 1,1938. ^ J, M, HMT 2,134,818 AUTOMATIC OIL RETURN SYSTEM FOR TURBINE PUMPS Filed March 27, 1937 . 6,6 s 2 Sheets-Sheet 2 ¿a 55 55’ ¿z . 67 ` J4’ E y 25 Y " ..62 jf@ , ZZ z5” 24 l 105 w"iIl,m ¿gua T gz,” l . d. 4 Patented Nov. „1, 1938 - 2,134,818 «UNITED STAT f Í 2,134,818 AUTOMATIC on. RETURN sYs'TEM‘FoR l TURBINE PUMPS f James M. Bait, Los Angeles, `Galiff,- assîg'nor ~>to Q >Food Machinery Corporation, a corporation of » Delaware Application March 27, 11 Claims. 1937, serial No.' isa'sva ` _ (c1. 10s-_102) invention relates generally tol deep well turbine pumps such as are used in pumping water wells for domestic and industrial purposes. The invention'is particularly in the provision 'of im 5 proved means for controlling the lubricant used to lubricate the line shaft bearings of the pump ‘ lined above which consists of a minimum of parts,~ none of which continuously operate, and which may be readily added to a standard‘turbine purnpor readily built into a standard pump at the time of manufacture. ` ' ‘ These objects are attained by the apparatus set so that the lubricant does not enter either the ' forth in the accompanying draw-ings, which it is well water'or the water being pumped to the to be understood are for illustrative purposes only, surface ofl the ground. The ‘invention herein and in which: l0 described is an improvement over the general type Fig. 1 is an elevational view with parts broken 10 of apparatus set forth in my Patents No. 2,041,999 ì away showing a turbine pump assembly equipped on Oil returr` `ystem for deep well turbine pumps with a preferred embodiment of the invention` and No1 2,068,175 on Means for lubricating a deep~ Fig. 2 is a fragmentary sectional elevationgof well pump, and vover the apparatus 'set forth in the accumulator and separator chambers shown; 15 my co-pending application for Letters Patent on in Fig. 1 of the drawings. 15 Lubricating system f'or vertical pump shaft,” Serial Fig. 3 is a sectional plan view on line 3-3 'of No. 13,820. f' , This invention is adapted to be embodied in a deep well turbine pump of the type utilizing the so-called “drip method” of delivering lubricant to the line shaft enclosing tubing. The primary ob ject of the invention is to provide means for auto matically accumulating the lubricant which has . traversed the line shaft enclosing tubing and the line shaft bearings in the region of the impellers of the pump out of contact with the water in the well and in the pump. It is also an object to provide means for automatically separating the Water content of the lubricant which becomes 30 emulsified in its passage through the bearings, and means for automatically returning the light er components of the emulsion, or in other Words, a clean lubricant, tothe surface for re-use. In accomplishing this object it is a further object of Y35 this invention to utilize the pressure of the ñuid Fig. 2. . Fig. 4 is a sectional plan view on line 4--4fof Fig. 2. ' Fig. 5 is a diagrammatic view of a system for ldirectly returning the lubricant to the top of the line shaft enclosing tubing. Fig. 6 is an enlarged sectional elevation of the valve employed in the accumulator and separator chambers. n 25 , Fig. ‘7 is a sectional elevation of another valve adaptable for use with the accumulator and sep arator chambers. ‘ , . Fig. 8 is a fragmentary sectional elevation of a modified form of the invention wherein the ac 30 cumulator and separator chambers surround the lower end of the line shaft enclosing tubing inside of the fluid delivery pipe. - Fig. 9 is a fragmentary sectional elevation of theI annular partition separating the upper and ' being pumped to raise the separated lubricant to lower chambers showing a modifled'form of the the surface. invention which does not require a valve. ` In connection with the accumulation and sep . aration of the emulsifìed lubricant which has 40 traversed the line shaft enclosing tubing and line shaft bearings, it is an object of this invention to provide fully automatic means for accomplish ing this which only requires an occasional stop ping of the pump for a short period of time for 45 the successful operation of the apparatus. In variably, industrial and municipal installations of turbine pumps of the type, in which the invention is adapted to be embodied, operate Awith a daily Referring to the drawings‘reference numeral ll generally indicates a pump head assembly of conventional type which includes a motor housed Y in the upper portion l2 of the assembly and a discharge conduit I3. The motor in the pump head assemblyv is 'in _driving engagement with a line shaft I4 which extends into the well l5 and on which are mounted the conventional imp_ellers,V 45 one impeller unit being shown housed in the bowl assembly I6. Surrounding the line shaft is aline shaft enclosing tubing l1 in which are mounted in spaced relationship the ordinary line shaft or Weekly interruption. Some installations oper ate longer Without interruptions and the inven»` bearings, two of WhichI are indicated by_refer-' tion is designed to be adaptable to operate in. ence numerals lßland i9; Surrounding the shaft connection with pumps operating under' such enclosing tubing H and spaced therefrom is a fluid‘delivery pipe 20 connected at its upper end Finally, it is an object of this invention to to the pump head assembly ll and in open com munication with the discharge conduit i3. llt 55 provide means for accomplishing the objects out conditions. ' ' 2,194,818 is connected at its lower end to the bowl assembly I5 in the well. The line shaft I4 extends through a fitting generally indicated by reference numeral 2I at the top of the shaft enclosing tubing I1. The iltting 2l provides a chamber 22 into which the lubricant is fed drop by drop at a suflicient rate to effectively lubricate the line shaft bear sifled lubricant is given opportunity to separate, that is, the oil separates from the water, while it is in the lower chamber. To permit passage of the lubricant accumu lated in the, upper portion of the lower chamber 35 into the upper chamber 32 above it, the an nular plate 3'I is provided with a threaded open ing 3i’ in which is threaded a valve generally indicated by reference numeral 45, which is de ings. This lubricant is stored in a chamber 23 from which it is conducted to the chamber 22 by means of a pipe 24 which includes a dripper valve .v signed to remain open only when the pressure 10 25 for the regulationl of the flow of lubricant in chamber 35 is equal to or greater than the pressure in chamber 32. During the operation through the pipe. of the pump the pressure in chamber 32 is kept For accomplishing the objects of accumulat ing and separating the component parts of the at a point substantially equal to the pressure of 15 water emulsifled lubricant which has traversed the line shaft and line shaft bearings, a casing 23 is provided which extends above and prefer ably below the bowl assembly I6». This casing comprises an upper section 29 which is secured in spaced relationship to the delivery pipe 20 the pumped ñuid inside the delivery conduit 23 by the provision of an opening or port 20' in the delivery pipe. Thus during the operation of the pump the pressure in chamber 32 is considerably higher than the pressure in chamber 35 (Which is at substantially well pressure) and thus keeps 20 by means of annular plate 30 to which it is weld the valve 45 in closed position preventing the ed or otherwise secured. At its lower end the upper section 29 is threaded on an annular plate passage of any fluid from chamber 35 to cham ber 32. The upper end of the chamber 32 is provided with a pipe 46 for delivering lubricant accumu 25 lated in the chamber 32 to the surface of the ground. This pipe has been shown as discharg ing into a container 41. A valve 46’ is posi tioned at a suitable point in the pipe 45 for con trolling passage of fluid therethrough. The con 30 tainer 41 is connected to the lubricant cham ber 23 in the pump head assembly II by means oi'. a pipe 48 suitably valved at 48’. The con tainer 41 which is adapted to act as a separat 3| welded to the delivery pipe 23. The plate 3I forms the lower closure of an upper chamber 32 formed by the casing section 23, delivery pipe 20, plate 3U and plate 3I. Threaded onto the plate 3| is a lower section 34 which forms what may be termed an open-ended lower chamber 35 surrounding ythe delivery pipe 20 and bowl assembly I6 and the intake portions 35 of the pump. rI'his lower chamber 35 is in open com munication with the well at its lower- end which is designated by reference numeral 34’. For the purpose of providing the conventional communication from the interior of the shaft enclosing tubing I1 to the chamber 35, a by-pass 31 is provided just below the line shaft bearing I3. This by-pass is formed in a rib 33. Below 40 the bearing I9 an annular chamber 39 is pro ing chamber is provided with an outlet pipe 49 35 at the bottom, which has a valve 49'. This pipe is for the purpose of draining water from the container. ` In the operation of the device the lubricant is fed into the top of the line shaft enclosing tub vided with which the inlet of the by-pass 31 ing I1 and flows downwardly through bearings vI3 and I9 and into the space 39, it becoming communicates. Below this chamber is a bear ing 43. Interposed between the bearing 40 and emulsiñed in its passage. From this point the lubricant, after a sufllcient amount of it has ac the impeller 4I is provided sealing means, gener cumulated to counterbalance the static head of ally indicated by reference numeral 42, to re the water in the Well, passes through the by strict passage of iluid through bearing 40'. It isgevident that with this `construction the pass 31 and into chamber 35 which is filled with pressure in the chamber 35, since it is in open water due to the fact that it is in open commu communication with the well, is substantially the nication with the Well at its lower end. The same as the static head of the water in the well. entire casing 28, in this connection, is situated vbelow the level of the water in the well. When By reason of this it can be seen that the lubri the lubricant reaches the outlet of by-pass 31 cant which has traversed the line shaft enclos ing tubing and passed down through bearings it flows upwardly in chamber 35 and the lighter I3 and I3 may escape from the shaft enclosing components accumulate in the upper portion of the chamber immediately below the plate 3|. tubing into the chamber 35 by means of the by 55 pass 31 after sumcient amount has accumulated While the well is being pumped the pressure in in the shaft enclosing tubing to counterbalance chamber 32 keeps the valve 45 closed and thus the static head of water in the well. In this prevents escape of the lubricant from the cham connection there is no tendency» for the fluid to ber 35. While the lubricant remains in cham ber 35 it has an opportunity to separate into its continue downwardly through bearing 40 inas component parts of oil and water, the oil gath much as the pressure at the lower end of the sealing means 42 is greater (during operation of ering at the top and displacing the water from the pump) than is the pressure at the upper end that portion of the chamber. When the pump is stopped the pressure in of bearing 40. Thus if there is any flow of fluid through bearing 40 it `is an upward flow which chamber 32 becomes the same as that in cham prevents any lubricant from working down ber 35, due to the fact that the pressure of the through this bearing and into the pumped fluid fluid inside of the delivery pipe diminishes to the well pressure. This equalization of the pres stream. 'I'he lubricant which has passed down through sure on both sides of the plate 3l permits the the shaft enclosing tubing> and out through the valve 45 to open and thereby permits the ac 70 cumulated partially separated lubricant in the by-pass 31 is discharged into the lower cham ber 35, the lighter components of the emulsiiied top portion of the chamber 35 to rise through the lubricant rising to the upper portion of the valve 45 and rise in chamber 32 to the top there chamber below the plate 3i during the operation of, displacing the water which in turn flows through ports 20’. When the pump is again put`75 of the pump. It is thus apparent that the emul aieasief in voperatlorf pressur'èí‘in ‘.thé-íchamber" raised tofthat of the“ fluid inside of the- deliveryr i ' is' passage 6which"` in- open communication at) pipe 2l).4v v'llî’his" pressure closes valve, 45l`and in`_-``v creases as‘the water‘rises in l,the _conduitfpipe un-`_ til 'it >is suiiicient to raise „thefaccumulated lubri-` _ cantin the upper 'portion‘of the chamber through , pipe 46 up t'oâthe surface 'of the'ground and into the "container, 41', provided valve 146’ has been _ its lower en_d with A_chamber"35 through `the tube'> l ` 59 and nipple58 and `terminates at its upper 'end in,` a valve seat 62. „A valve spring 63 is mounted by means of screws 64fon`the'valve’body 60 and," is adapted to remain in the position shown- in' Fig'.` 6, when the pressure of vtheffiuid in the valve passage is greater`> than or equal to the' pressure opened 'and providing’lthe'pressure ~at dischargev ` in theregion of` the `closure member. Mounted“ 10 I3 is sufficient to -raise theloil‘in pipe 46 tothe ' ` on the outer end of the valve spring, 63 is valve 10 l elevation Ifrecessary'` to enterthe t'op of container " closure member.65 `whichis preferably formed 41. `If the `vvateris discharged at the surface 4of anvoil and water'resi‘sftant` material. This valve ` f a valve >or restrictionmay beV required in dis closure member`65 engages the valve seat A|52 when ` charge I3, although in most casesthe column the pressure in chamber 32 exceeds the pressure 15 friction loss will supply the liquid differential. The valve 46,'A may be opened wide and left that way until the pipe begins 'to deliver water at its outlet or _it may only be cracked and thus allow only as much lubricant to be delivered to the surface as is being fed into the shaft enclosing tubing at the top thereof. In this connection chambers 32 and 35 are constructed of suflicient size to accommodate the amount of lubricant which might accumulate in them during the ordinary period of operation of the pump between shut downs. ‘I‘he section 34 of the casing is shown extending considerably` below the outlet of the by-pass 31 so as to pre vent anypossibility of the lubricant escaping into 30 the well. - ’ in the bore 6| which is in communication with 15 the chamber 35. ‘ It should be apparent that this invention is " not _limited to the particular valve structure set forth in Fig.'6 and'that the valve 45 is merely a typical form of valve structure which >in practice 20 has been found to be satisfactory. In Fig. 7 is illustrated another valve which is ` adaptable for use in the annular plate separating the upper and lower chambers. -This valve gen-l " erally indicated by reference numeral 68 com 25. prises a valve body 69 having a central passage way 10 which terminates at its lower end in a threaded portion 1| adapted to beV threaded on to a tube such as the tube 59 shown in connec tion with valve 45. The passageway 10 termi 30 nates at its upper end in a T outlet 12. rMount ed on the upper end of valve body 69 is a valve shaft enclosing tubing. The lubricant return I cap 13 which is held in place on the valve body pipe 46_in this constructionleads directly to the 69 by means of bolts 14. Between the top of` dripper valve 25 and is controlled by a valve 52. valve body 69 and the inside of the top of the 35 Between the valve 52 and the chamber 32 is a valve cap 13 is a coil spring 15 which is sur drain pipe 53 “provided with a valve 54, by means rounded by a water proof flexible encasement of which samples of the fiuid being raised' through means 16. _The lower end of the valve cap 13 pipe 46 may be drawn off. The lubricant storage ha's beveled edge 13' adapted to rest on the valve chamber 23/in the pump head assembly is con seat 11 formed on the valve body 69. This valve 40 nected to the dripper valve by pipe 55 which is seat 11 may be formed of “Duprene”v or other In Fig. 5 is shown another manner in which , -the lubricant may be returned to the top of the controlled by valve 56. The' dripper valve 25 is connected to the chamber 22 at the top of the' suitable oilV and water resistant material posi tioned in the annular groove 18. In connection with the description _of the shaft enclosing tubing by the pipe 24. The construction >shown in. Fig. v5 permits a chambers 32 and 35 it was pointed out that in . closed automatic lubricating system after the theordinary operation of deep well turbine 45 system has become saturated with lubricant. When‘the pump is first installed and before such time as suiiìcient lubricant has passed down 50 through the shaft enclosing tube and out into> the separating chambers and is in condition to be raised to the surface, the lubricant may be suppliedto the top of the shaft enclosing tubing by means of the pipe 55 communicating with the 55 reservoir 23. During this initial operation of the `pump the valve 56 would be open and valve 52 closed. After the pump has been in operation a sufficient time' for lubricant to-have passed down the shaft enclosing tubing and accumu 60 latedin the upper portion of the top accumulator chamber the valve 5.56 is closed andithe valve 52 pumps the level of the water standing in the well would at all times be above the top of casing 28. However, to provide for the possibility of thetwater level receding to a. point below the 50: top of the casing 2B a stand pipe may be pro vided externally of the casing 28 which should be open at the top and thus provide a head of water on the lower open end of chamber 35 equivalent to the height of the stand pipe which preferably should be the height of the casing 28 orslightly higher. Although this stand pipe might be embodied in the preferred form of the invention shown in Figs. l and 2, for pur poses of illustration it has only been shown in 60 connection with a modified form of the inven opened, thus permitting the lubricant » being tion illustrated in Fig. 8. Accordingly it will raised to the surface through pipe t6 to be de-. be more fully described with thatform of the ‘ livered directly back to the top of the shaft en invention. . 65 closing tubing. It may be necessary to first open Fig. 8 illustrates a modified form of the in valve 5'4 and permit escape of any water which vention wherein the accumulator and separator maybe in pipe 46 before opening valve 52 to permit the. lubricant to flow to'the dripper valve." the lower end of the line shaft enclosing tubing In Fig. 6 is shown the construction of valve 70 45 which is mounted in the opening 3l’ in the tic-ula'rly to Fig. 8 vwhich is a fragmentary sec~ lns chambers are located immediately surrounding`> and are within the delivery pipe. Referring parn plate 3l. A nipple 58 is threaded into the open ing 3l’ end__carries a short tube 59 which is >threaded into the upper end of the nipple. >tional elevation, reference numeralißl) indicates Threaded on the upper’end of the tube 59 is a a bearing 82 (equivalent’to bearing 4m Fig. 2). Above the bearing the bore Ellis enlarged at .63' valve comprising a `valve body 60 which has a a bowl assembly. Mounted on the topV of the bowl assembly is a case dl on .which is mounted 4 2,134,818 and has threaded in its upper end another bear ing 84 (equivalent to I9, Fig. 2). 'I'he delivery pipe, here indicated as 85 is threaded into the upper end of the case 8|. A line shaft 88 ex tends downwardly through the apparatus and operates the impeller in the bowl assembly 60. Surrounding the line shaft 86 is the conventional shaft enclosing tubing 81 in which are mounted the spaced line shaft bearings, one of which is. indicated at 88. Surrounding the shaft enclos ing tubing at its lower end is a casing 89 which lator and separator chambers. Reference nu meral |0| indicates the casing means enclosing the chambers |02 and |03 and surrounding the delivery pipe |04. 'I‘he chambers in this form of the invention occupy the same relative posi tions as are shown in Fig. 2. The annular plate separating the chambers designated by reference numeral |06 is provided with a very narrow pas sageway |06. The delivery pipe |04 is shown apertured at |04' but might preferably be aper is formed of an upper section 90 and a lower section 9|. An annular plate 92 divides the cas ing 88 into an upper chamber 93 and lower cham tured on the side opposite from the passageway |06. With this construction the lubricant es ber 84. This plate 92 is apertured at 92’ to ac commodate a valve 95, similar to the valve shown tion with the device shown in Fig. 2 and is pre and described in connection with the preferred form of the invention. Mounted in the upper end of the chamber 93 is a pipe 91, similar to pipe 46 of the preferred form and adapted to be con nected at the surface as shown in Fig. l. At the lower end of the shaft enclosing tubing 81 are apertures 81' which permit escape of accumu lated lubricant into the chamber 94. The lubri cant which has worked down through the shaft enclosing tubing and bearings therein may thus escape into chambers 94 through these openings and accumulate in the upper portion of the chamber just below the plate 92, dividing the upper and lower chambers. During the operation of the pump the pressure in chamber 93 is maintained at substantially the pressure of the pumped fluid by means of an opening 90’ in the upper section 90 of the casing 89. As in the preferred form of the invention, this pressure during operation of the pump serves to keep the valve 95 in a closed position, thus preventing any fluid from passing from chamber 84 to the chamber 93. When the operation of the pump stops the pressure in chamber 93 drops to that of well pressure permitting valve 86 to open. This allows the entrapped accumu lated lubricant in the upper portion of chamber 84 to pass through the valve into the chamber 45 83 where it accumulates in the upper portion thereof. ' It should be pointed out that at all times the pressure in chamber 94 is substantially that of the well pressure. This is accomplished by the provision of a by-pass 98 which communicates with the interior of the shaft enclosing tubing and which is in open communication with the well by virtue of the clearance existing between the shaft and the bearing 84. 55 plate separating the upper and lower accumu To take care of the possibility that the Water in the well might drop below the casing 89 and thus permit the lubricant from the shaft enclos ing tubing to seep into thewell water, aÍ stand pipe 99 is mounted on the lower portion of the case 8| and extends upwardly a desirable dis tance above the casing 89. This stand-pipe is adapted to be open to the well at the top and will thus be filled when the water of the well is above it. or by the high pressure leakage water escaping through bearing 82. When the water of the well recedes below the top of the stand pipe, the stand-pipe retains a column of water sufficient to counterbalance the fluid in cham bers 93 and 94, and thereby prevent the escape 70 of any of the lubricant into the "water of the well, since it is separated before it can leak through port 98. ' In Fig, 9 there is illustrated a modified form of the invention which does not require a valve. 75 'I'he view shows a fragmentary section of the capes into chamber |03 as described in connec vented during operation of the pump from rising into chamber |02 by the pressure of the water in chamber |02 which is in open communication with the fluid delivery conduit. Thus, during operation of the pump a slight stream of water 20 escapes through the passageway |06 into cham ber |03, preventing passage of the lubricant up wardly therethrough. The lubricant accumu lates in the chamber |03 below the plate |05 until the pump is stopped, when it may ascend into the upper chamber through the passage |06. When the pump is started the lubricant accumulated in the upper portion of the upper chamber may then be delivered to the surface of the ground in the manner above described in connection with the other forms of the inven tion. With this construction it is possible to eliminate the valve employed between the two chambers in the other forms of the device. I claim as my invention: _ 1. For use in combination with a well turbine pump having a bowl assembly, a line shaft, a shaft-enclosing tubing adapted to receive a lubri cant at its upper end, and a delivery pipe enclos ing said tubing, a lubricant accumulator and 40 separator means comprising: casing means form ing a closed upper chamber and a lower chamber open to the Well at a point below the well liquid level when the pump is operating, said lower chamber communicating with the interior of said shaft-enclosing tubing; said delivery pipe having a port in the region of the lower portion of said upper chamber to communicate said upper cham ber with the delivery pipe, said port being below the liquid level in the upper chamber when the 50 pump is not operating; conduit means connect ing the upper portion of the upper chamber with the surface of the ground; and a normally open valve between said chambers adapted to be closed by the pressure in the upper chamber when the 55 y pump is operating. 2. For use in combination with a well turbine pump having a bowl assembly, a line shaft, a shaft-enclosing tubing adapted to receive a lubri cant at its upper end, and a delivery pipe enclos 60 ing said tubing, a lubricant accumulator and separator means comprising: casing means sur rounding said tubing in the region of the lower end of said tubing; partition means mounted between said tubing and said casing and cooper ating with those elements to form closed upper and lower chambers; said tubing being apertured to provide communicating means between said lower chamber and the interior of said tubing; said casing means having a port in the region of 70 the lower portion of said upper chamber to com municate said upper chamber with the delivery pipe, said port being below the liquid level in the upper` chamber when the pump is not operating; by-pass means connecting the interior' of said r .t w: ~- l ,'¿Ífaigasig ,i " “ming "with" iheïwen; a sortais. open `dive` mounted on lsaid partition means adapted tobe ating; and ~`conduitmeans connecting the upper inthe upper'ch'amber I when the pumpy isy.. not yoper d closed by the 'liquid pressure in the upper _chamber portion of 4the upper chamber with the 'surfac'e‘ when the pump is operating; `andjconduit means connecting the upper portion of the upper cham of theground.y ` ber with the‘surface of the ground. f 10 x i ' 1 ` ". f’ \ 6. Foruse in combination with a well turbine pump having a bowl assembly, a line shaft, `a shaft-enclosing tubing adapted to receive a‘lubrì 3. For use in combination with a well turbine pump having a bowl assembly, 'a line shaft, a shaft-enclosing tubing adapted to receive a lubri cant- at its upper end,A and a delivery pipeenclos ingv said tubing, an oil circulating system com cantA at its upper end, anda delivery pipe enclos in'g said tubing', ajlubricant accumulator and sepa enclosing tubing forming a closed upper' chamber l, ing‘said'tubing in theregion of the lower lendof . below the well liquid level when the pump is oper said tubingrbpartition means. mounted between ating; ` by-pas‘s means connecting said lower chamber and the interior of said tubing; a nor mally open valve .between said chambers closable rator means'comprising: casingV means surround said tubing and said casing and cooperating with those elements to form closed upper and lower prising: a housing below the' top‘of the 'shaft l0 and a lower chamber open toi'thevwell at a point by the pressure of th-e liquid in the upper cham chambers; said tubing being apertured to pro vide communicating Vmeans _between >said lower ber when the pump- `is operating; said upper chamber being in open communication with the chamber and the interior of said tubing; said cas ing means having a port in the region of the lower interior of said delivery pipe near the lower end 20 portion of said upper chamber to communicate èof said upper chamber and at a point below the saidlupper chamberwith the delivery pipe; by-pass vliquid level in the upper chamber when the pump means providing communication from the interior is not operating; and conduit means connecting ,of said tubing to the exterior of said delivery pipe; a normally open valve mounted in said par tition means adapted to be closed by the pressure in the upper chamber when the pump is operat ing; conduit means connecting the upper por tion of the upper chamber with the surface of the upper portion of the upper chamber with the top of said shan-enclosing tubing. . 7. For use with a well turbine pump having a bowl assembly, a line shaft,l a shaft-enclosing tubing' adapted to receive a lubricant at its upper end, and a delivery pipe enclosing said tubing, 30 the ground; a stand-pipesurroundingsaid delivery the combination of : a `lubricant accumulator and 30 pipe from a point below said by-pass means to a separator having a closed upper chamber and a lower chamber open to the well at a point bellow the well liquid level when the pump isl operating, said lower chamber being in open communication >with the interior of said tubing, said upper cham 35 ber being in communication with the interior of point above the top of said upper chamber, said stand-pipe being open to the well at its top and closed at the bottom. 35 4. For use in combination with a well turbine pump having a bowl assembly, a line shaft, a shaft-enclosing tubing adapted to receive a lubri cant at im upper end, and a delivery pipe enclos ing said tubing, a lubricantaccumulator and sepa 40 rator means comprising: a housing below the top of said shaft-enclosing tubing forming a closed upper chamber and a lower chamber open to the well at a point below the well liquid' level when the pump is operating, the lowerv portion of said upper chamber being in open communication with the interior of said delivery pipe at a point below the liquid level in the upper chamber' when the pump is not operating; by-pass means con necting said lower chamber and the interior of said tubing; means for preventing lubricant in said lower chamber from entering said upper chamber when the pump is operating and for permitting such `lubricant passage when the pump is not operating; and conduit means connecting the upper portion of 'the upper chamber with the « said delivery pipe in the region of the lower end of the said upper chamber and at a point below the liquid level in the upper chamber when the pump is not operating; conduit means connect 40 ing ’the upper portion of the upper chamber with the surface of the ground; and means operable by the Variation in pressure of the liquid in said delivery pipe for controlling the passage of lubri cant from said lower chamber to said upper 45 chamber. - il. For use in combination with a well turbine pump having a bowl assembly, a line shaft, a shaft-enclosing tubing adapted to receive a lubri cant at its upper end, and a delivery pipe enclos» 50 ing said tubing, a lubricant accumulator and sep arator means comprising: casing means sur rounding said tubing in- the region of -the lower end of said tubing forming closed upper and lower chambers, the portion of said casing iol-ming a [iii partition between said upper and lower chain bers being provided with an opening to communi cate said upper and lower chambers; said tubing being apertured to provide communicating means shait-enclosing tubing adapted to receiveA a lubri between said lower chamber and the interior oi" 60 cant .atits upper end, and a delivery pipe enclos ingV tubing, a. lubricant accumulator and said tubing; said casing means having a port in the region oi the lower portion of said upper separator means comprising: . a housing below the ‘top oi" the shaft-enclosing tubing forming a chamber to communicate said upper clvlamber closed upper chamber and a lower chamber open with the delivery pipe, said port being below theì i to thewell at a point below the well liquid level - liquid level in the upper' chamber when the pump 65 when the pump is operating, the portion oi said, is not operating; and conduit means connecting housing forming a partition between said upper the upper portion of the upper chamber with 'the surface of the ground. and lower chambers being provided?with an open 9. For use in combination with a well turbine in‘g to communicate said upper and lower cham pump having a bowl assembly, a line shait, a 'lli 70 bers; by-pass means connecting said lower cham ber and the interior of said tubing; said delivery shaft-enclosing tubing adapted to receive a lubri pipe having a port in the region ci the lower- cant at its upper end, and a delivery‘pipe enclos portion of the upper chamber to communicate ing said f tubing", a lubricant accumulator and separator means comprising; casing means below »said upper chamber with the interior oi said de surface of the ground. y, 5. For use in combination with a well turbine ' pump having a bowl assembly, a line sha-it, a 75 livery-pipe, said port being below the liquid level the top ci said shaft-enclosing tubing forming 6 a closed upper chamber and a lower chamber, said upper chamber being in open communica tion with the interior of said delivery pipe in the region of the lower end of said upper chamber and at a point below the liquid level in the upper chamber when the pump is not operating; said lower chamber communicating with the interior of said tubing; means for preventing lubricant in said lower chamber from entering said upper chamber when the pump is operating and for Ipermitting such lubricant passage when the pump 1l. For use in combination with a well turbine pump having a bowl assembly, a line shaft, a tubing enclosing said shaft adapted to receive a lubricant at its upper end, and a. delivery pipe enclosing said tubing, a lubricant accumulator and separator means comprising: by-pass means interposed between the interior of said tubing and the exterior of said pipe; an elongated casing surrounding said delivery pipe in the‘region of the outlet of said by-pass, said casing being closed 10 at the top and open at the bottom, the bottom of it not operating; and conduit means connecting _ said casing being below the well liquid level when the upper portion of the upper chamber with the the pump is operating; a partition member located above said by-pass means connecting said casing surface of the ground. ` 10. For use in combination with a well turbine and said delivery pipe and cooperating with those pump having lubricant supply means, lubricant members to form an upper and a lower separat escape means, and a delivery pipe, a lubricant ing chamber; said upper chamber being in open communication with the interior of said delivery accumulator and separator means comprising: casing means forming a closed upper chamber pipe by means of an aperture in said delivery pipe opening into the lower portion of said upper 20 and a lower chamber open to the well at a point chamber, said aperture being below,` the liquid below the well liquid level when the pump is oper ating, said lower chamber communicating with level in the upper chamber when the pump is not the lubricant escape means; communicating operating; communicating means' between the upper portionkof said lower chamber and said means between the lower portion of the upper chamber and theinterior of the delivery Pipe, said upper chamber; a valve controlling said com means being at a point below the well liquid level municating means and adapted to be closed when when the pump is not operating; conduit means the pressure in said upper chamber exceeds the pressure in said lower chamber; and a lubricant connecting the upper portion of the upper vcham ber with the surf ace of the ground; and means for return conduit connecting the top of said casing 30 30 preventing lubricant in said lower chamber from with the surface of the ground. entering said upper chamber when the pump is JAMES M. HAIT. operating and for permitting such lubricant pas sage when the pump is not operating.