Патент USA US2404349код для вставки
July 23, 1946. l w. R. BRANT ErA-L 2,404,349 _ V'ÀLVE Fiied Nov. Las; 1944 2 Sheets-Sheet 1 ‘à July- 23, 1946. w. R. BRANT ETYAL 2,404,349' VALVE Filed NovT 29. 1944 KW „ß 2 Sheets-Shed'.l 2 x 23 21 1y l Patented July 23, 1946 ‘ l2,404,349 i ' ‘ UNITED STATES PATENT oFFic‘E VALVE Walter R.. Brant and Harvey G. Chapman, Jr., Glendale, Calif., assignors to Adel Precision Products Corp., a corporation of Californial ' 1 Application November 29, 1944, Serial No. V565,718 3 Claims. (Cl. 137-139) 2 This invention relates to valves', and more par tion 4, and two enlarged portions at its opposite ticularly to an electrically actuated valve which ends, designated 5, 5. This bore constitutes a is characterized by the fact that it is self-con valvel chamber. Said body I is provided -trans tained in a valve body with all of itslparts sealed versely in its middlev with a bore 6, intersecting the within said body and with no parts extended 5 enlarged central bore 4', and the 'outer ends of through the body so as to require packing or other which bore 6, are enlarged, as at 1, Fig. 4,‘to re~ sealing means therearound. ceive gaskets 'I' therein, at the juncture of end Among the salient objects of the invention are: plates, or other valve bodies, attached thereto, as to provide a flow-reversing valve of the character ' in Fig. 5. above referred to having a spool or piston type of Al0 Communicating with the enlarged end bores valve member, so constructed and arranged as 5,v 5, are transverse return' bores, as 8, which are to permit the “stacking” of a plurality of valve also enlarged at their outer' ends to receive bodies with a single pressure line and a single gaskets, as at 8’,'Fig. 3, in :light broken lines. return line common to all; to provide a valve body Said body I is also- provided with two main having a valve chamber therein and a valve mem 15 ports, as 9 and I0, threaded for the connection, ber operable in said valve chamber, said valve of pipes therewith for supply and return of oper member bein-g connected’ at its opposite ends, with ating Huid to an operating» cylinder, again re flexible connections, with two solenoids and their ferred to. The inner ends of these ports il` and armatures» for movement of Vsaid valve member IIJ connect through slots 9’ and I0’ with the main for controlling the ñow of operating fluid through bore or valve chamber 3, as shown in Fig'. 2, and said valve chamber to and froml a place of use,4 as will also be understood from Figs. 3 and 6'. to the opposite ends of an operating cylinder; to , Movably mounted in the main bore or valve provide in such a valve, a valve member with chamber 3 isa spool-typer of valve member I3, means for normally and yieldingly holding it in which is hollow, and which is adapted to receive a neutral or balanced intermediate position until 25 a loosely fitting connecting rod I 4, having ball movedy in one direction or the other;` and, in gen shaped heads I4', which are connected with the eral, to provide a valve of the'> character referred ends of armatures I5, I5, as shown, said arma to which is economical to manufacture, simple in tures being operable in the solenoids 2, 2, in the construction and arrangement, and eilic'ient;` and certain in operation. ` l l usual manner. ` The opposite ends of thevalve member I3are formed to receive thereover coiled springs I6, I6,~ the other ends of which springs operate over’the ends of the armatures I5, I5, in the enlarged end portions 5, 5, of the main bore 3, as shown, and In order to explain our invention in detail, we have shown one practical embodiment thereof on the'accompanying two sheets of drawings, which We will now describe: Fig. l is a perspective View“ of a such a valve embodying our invention; Fig. 2 is an enlarged, longitudinal sectional View «' bear against washers I6', I6' which abut tubular member I'I: carried by the solenoids and surround through the valve body and one ofthe solenoids; surrounded by the spring I6 are reduced and ex ing the armatures I5. The ends vof the armatures Fig. 3 is a cross sectional View taken on the line tend through the washer I 6’ for connection with 3-3 of Fig. 2; 40 the >rod I4. The armatures are provided with Fig. 4 is a, cross sectional view taken on the line shoulders I6” which are disposed to contact and 4-'-4 of Fig. 2; move‘the washers I6’. When either solenoid is Fig. 5 is a transverse sectional view taken on th energized the armature of the other solenoid ‘is line 5--5v of Fig. 1; and l pulled by the rod I4 and its shoulderlß” con Fig. 6 is a schematic view, with the valve body 215 tacts the associated washer Iiij and moves it away and valve Vmember and solenoids shown in longi from the member I1 and compresses the asso» tudinal section, , and also showing it connected ' ciated spring I6,_whi1e the otherspring I6 is com with'a source of operating ñuid, and with an op pressed between the member I'I of the energized erating> cylinderl and piston. solenoid and the valve member I3. f When one of Fig. 7 is a fragmentary sectional View taken on 50 the solenoids is de-energized following its oper the line ‘Il-T of Fig. ~5. i ation, the springs I6 will return the valve mem Referring nowy in detail' to the drawings, the ber I3 to-neutral position and `alsoset the arma- i valve body I has attached to its opposite ends two solenoids 2, 2, and is provided therein with a lon gitudinal bore 3, having an enlarged central por tures I 5 so that either solenoid may be operated. Each of said solenoids 2, 2, hasan attaching end . 55 plate or ring Z', for attaching the solenoid body 2,404,349 ' noid this will open port '9 to thepressure port 6, and port I0 to return port 8, with the consequent to the body I, as shown. Each tubular memberV I1 with a flange, is extended through said attach ing ring 2', with a sealing ring I8, between the flange of said member I1, and the attaching ring 2", whereby to tightly seal the solenoid from the interior of the body I, which will be filled with oil or other iluid. The armatures, I 5, I5, are pro movement of the piston 3I and the movement of whatever member or part is connectedthereto. If` both solenoids lare deenergized, the valve element I3 will be centered by the springs I6, I6, andgbotn ports 9 and III will be opened to the retu'rnportsv 8,8, as seen in thel sectional view, vided in their sides with grooves, as 45', for the Y purpose of preventing stalling of the movement of - Fig. 2. ' The'restricted or slot connection between ports 9 and I0, and the valve chamber facili the armature I 5, by reason of trapped ñuid within 10 ¿the the inner tubular member I1, between the arma» ‘ tates this possible connection and the balance of ture I5 and the flxedcores I1', at the outer ends ' @the valve member I3 in the position shown iny Fig. 2. of said solenoids. . Y n Y This connection «between the >two armatures I5, I5, by the connecting rod' I4,jand _the ball and socket joints, assures of flexibility for perfect ’ 15'. alignment, and free flow of lubricating medium . and proper sealing of the lubricating medium into the solenoids, connected to the opposite ends of the valve body, as clearly illustrated in Fig, 2. ` . It will be understood, of course, that the usual electric connections to the solenoids are pro vided so that by the simple manipulation of a switch either oi’` the solenoids can be energized. _ It isnot believed that these electric connections are necessary to an understanding of the inven 20 tion proper, which is the` construction and ar >Referring to Figs. 1 'and 5,7it will'be seen that rangement'of the valve body and valveelement, the valve bodyl is provided >onrits opposite sides with end plates I9and20, ‘secured thereto by bolts housing in the manner shown and described. : . Thus bythe simple manipulation ofthe proper and the connections therefor ' Within a closed 2| ,` 2I. Theend plate. I9 is.- formed as shown in Fig. 7 vwith a 'lf-shaped return vrbore I9’ the outer 25 switch it is possible to energize the desired sole-V noid and the, valve member I3 will be moved in end of the shank of which has a fitting 22 therein ?either direction for directing'the .operating viiuid affording connection with a return line. Theends into they operating cylinder 30, for moving the vof the head of ther T-shapedreturn ‘bore I9’ are piston -and the mechanism -connected therewith, arranged to register with those outerrends 'of the return bores 8 which open onV the side of the body 30 It will be noted that all of the’ operating partsV opposed to the platelli.A The other' ends of the are within-the valve body,- and the valve chamber bores 8 are closed by the Vend plate 20. ’The end therein, and that only portions'of the armatures plate`20 is provided with a'. bore 20', to communi of the solenoids work through the closed junc cate with the transverse bores 6, 6, inthe main . body I, and with the enlarged central portion 4 35 tures-at the opposite ends of said valve chamber, thus making the valve self-contained andzclosed of the main'bore or valve chamber ‘3, as seen in in a manner to avoid any working parts operating Fig. 5.' The‘igaskets‘1’,`1’,’are also seen between through the body of the valve with the necessary y whateveritmaybje.-v said end plates and the body I. The bore 20' `is " ’ .Y > . » " f for illustrative purposes, ‘except as lwe may be limited by the hereto appended claims, forming a y These end'plates'as I 9 and 20, shown in Figbl, are used'with one or; with plural'valve bodies con ' bythose versed in the art. " We do not limit ourpinvention, however, to the details >of construction-and arrangement shown- f nected together, and having'a single‘return line andal single pressure line, as' will be understood ~ 'packing or sealing means therearound.: 1 provided at its outer'end with4 a iitting 23 afford ing connection with a pressure Vline such as line 21inFíg.6>. i part thereof. - L 45 " > "In Fig. 6, said valve bodyis shown .connected with a source of operating ñuid 25, with >pump 26, l. A how-reversing valve- of .the character re-ferred to including a valve body having a valve chamber therein, with »ports.-~ for; connecting .fa sourceV of» operating fluid >under pressure- to move in pipe 21 leading to and connectedwith said through said valve chamber _to andfrom a place valve body I, through the» bore or port 6, and 50 ofvuse, a hollow valvev of the spool type operable the enlarged center portion 4 of the> main bore 3, in said >valve chambervfor controlling the flow tof in which therspool valve I 3 moves. A return pipe operating fluid- therethrough, aVV solenoid con '28 ‘is -diagrammatically shown'as connectedby nected with each endV of said Avalve chamber, an means -of a Y to two Yreturn outlet ports.8,. 8,. at opposite ends of said valve chamber, .andreturns 55 armature in each solenoid'and operable through to the-reservoir, or source of supply'offhydraulicl . fluid 25,»through pipe 28. vIn. practice' line 28 will be 'connected to `the returnbore I9’v through the fitting 22. `A safety or by-pass valve 291is the closed juncture between the ends of the valve chamber and said solenoids, a connectingxrod from one armature to the other through saidhol low valve, anda coiled spring, interposed between each armature and the adjacent end of said-valve shown'connected between pipes 21 and 28. This 60 for normally pressing them apart. Y a u -may be the usualby-pass valve. ' . . ' ' 2. In a valve structure of the character-ree _'The operating‘cylinder is designated 30, vwith ferred to, a valve body having acylindrical valve operating piston 3| therein, for connection to the chamber therein enlarged atits opposite ends, la part to rbe moved, whatever it may be. The op posite ends of the 'cylinder 30 are connected by 65 spool valve member operable therein, means-for " means Yof pipes 32 and 33, withthe supply and return ports> 9 and I9, respectively, as indicated. In Fig. 6, the valve I3 is shown moved to the right incident to energization offthe right hand ' solenoid, with pressureport 6 opened tothe port I0 and cylinder line »whileV the port 49 is opened to the return port _8 and'returnrbore I9', with the consequent movement of the piston 3| to the left.V Nowif` >the armature and Valve .I3 are vIfnov’ed to the leftrby energizing of the left 1.194116,'sole--V 15 connecting a source of operating iluid under -pres- i sure. through said valve chamber, toand _ironia place of use, controlled by said‘valve'member, two solenoids connected with >theopposite. ends of said valve member for moving it in:opposi_te directions, an armature in each solenoid, a coiled. spring between-thev armaturefandits end of‘said valve-member for normally pressing them apart,> and a rod through said valvemember connecting'> ' said armatures, wherebysaid armatures andv'alveÍ 2,404,349 6 member are flexibly connected for movement to gether. 3. In a valve mechanism, a valve body having a valve chamber therein, with port connections for passing an operating fluid therethrough to and from a place of use, a, valve member operable in said valve chamber to control the flow of said operating fluid, said valve member beingI hollow, a solenoid connected with each end of said body and in register with the end of said valve cham 10 ber, an armature in each solenoid and operable . through the ‘juncture between said solenoid and said valve chamber, a coiled spring interposed between each armature and the end ofl said valve member and operating to press them apart, and a connecting rod extended through said valve member and having a ball and socket connection at each end with said armatures, respectively, for the purpose indicated. WALTER R. BRANT. ` HARVEY G. CHAPMAN, JR.