Патент USA US2128763код для вставки
Aug- 30, 1938- c. H. F. WHITLARK-ET AL ‘ 2,128,763 AUTO BODY HEATER Filed Aug. 6, 1936 2 Sheets-Sheet 2 'INVENTOR C’Zzzzde /1’. E’ WkzZhr/F; 5 . maéé’hvxém. . A TTORNEYFP. ‘2,128,763 Patented ,Aug. 30,1938 UNITED STATES PATENT qorrics 2,128,163 ‘ ap'ro nonr nna'rnn ,Ciaud'e n. Frwhitlark and Frederick A. Weihe, Jr., Detroit, Micln, assignors to McAleer Manu facturing Company, Detroit, Micln, a corpora ' tion of Michigan Application August 6, 1936, Serial No.v94,_588 I 4 Claims.‘ (01. 257-131) This-invention relates to heaters and- in par ticular relates to a circular radiator heater for heating the interior of automobile bodies. Objects of the invention are to provide an auto 5 body heater construction having the parts thereof so constructed and arranged that the fan and motor are readily accessible and removable from the heater; to provide a heater construction‘ in which a core is formed of a plurality of ?at not as e?icient as is desired. In order to obtain a maximum e?iciency in heat transfer in heating ' the air passing through the heater, thepresent invention contemplates the construction of a heater in, which a core is provided, including up per and lower headers connected by substantially ?attened semi-circular tubes spaced at intervals along the length of the headers. A suitable heat ing medium, as hot water, or steam, is supplied "to one of the headers, circulates through the tubes 10 10 tubular members having fins on their surfaces of. to the other header, and away from this last v such a construction that the maximum e?lciency header. The core is substantially circular in in heat transfer is obtained; to provide aheater ' cross section, and the elongated ?at~ portions of I materially shortened in construction so that it the tubes are directed radially inwardly so that will require a minimum of space within the auto air enteringthe heater passes over a maximum 15 mobile body; to provide the de?ecting and baf area to provide greater eiilciency in heating the ?ing means of such a character that the direction air. Also, in order to insure maximum heating and volume of the heated air entering the body of the entering air, radiating ?ns are provided on may be effectively controlled; to provide a-fan the radially directed surfaces of the semi-circular motor mounting of such a construction that the tubes between adjacent tubes. The particular 20 20 motor may be maintained in a cool_- condition shape and construction of these fins form an im during operation; and to provide a heater con portant feature of the present ‘invention; and struction which is simple to manufacture and the ?ns are constructed from an elongated strip e?icient in use. , of heat conducting metal, such as copper, for Other objects of the invention will become ap spaced 215V by passing the strip between ‘ 25 parent from the following speci?cation, the example, gears of such a con?guration that trench-like drawings relating thereto-and from the claims zigzag grooves are provided transversely of the hereinafter set forth. strip of a depth substantially equal to the distance In the drawings in which like numerals are between adjacent tubes.‘ The air passing into used to designate like parts in the several views ‘ the heater travels radially of the core‘ and as it 30 30 throughout;v ‘Fig. 1 is a front elevational view with parts is con?ned to thezigzag grooves, these grooves will prevent direct straight line entrance into the broken away of an auto body heater embodying V heater thereby causing turbulence in the‘ incom features of the present invention; . ing air and emciently heating the air; ' r Fig. 2 is a crossksectional view with ‘parts in A motor‘ and fan are provided in the core to 35 35 elevation taken substantially along the line 2-4 draw air radially .therethrough and discharge it through the forwardlyffacing opening through a Fig. 3 is an enlarged fragmentary cross-sec louver plate removably mounted over the open- ' view taken substantially along the line, tional ing, and provided with doors or ba?les forwardly , 3-3 of Fig. 1; oi the louver plate and pivotally mounted to the 40 40 Fig. 4 is an enlarged fragmentary cross-sec- , louver plate. The louvers oi the plate and the ‘ of Fig. 1; tional and elevational view taken substantially along theline 41-4 of Fig. 2; ‘ Fig. 5 is an enlarged fragmentary cross-sec .tional view taken ‘substantially along the line ‘45 8-5 of Fig. 4; and, Fig. 6 is a vertical cross-sectional view showing a modi?ed structure for mounting the motor within the core. bailie doors are so constructed that the discharge of heated air may be effectively controlled as to direction and volume to satisfy the requirements _ of occupants of the vehicle.. 45 Another difficulty with prior types of heaters is r . ' that it is di?icult to conveniently remove the fan and motor from the heater construction, partic _ ' in that heretofore the entire heater re~ It is, of course, recognized that auto body ularly quires removal from the automobile to permit 0 . 50 heater radiators are old and the present inven removal of the motor, and in the present inven; tion relates to an improvement over the known tion the motor and fanare mounted relative to types of auto body heaters. One of the di?lcul the core so that simply by removing the front» ties ‘with the prior types of heaters is that the plate and the shroud and the louver plate-as a air passing through the heater is not heated to unit. and the convenient removal of several sup-- 55 a sufficient extent and the heaters are therefore’ 2 2,128,768 . porting screws for the motor, without disturbing the mounting of the heater itself in the automo bile, the motor and fan may be conveniently re moved through the face of the heater. Also the present invention contemplates the provision of ,openings through the motor casing and'motor mounting means communicating with the .rela tively cool outside air for ventilating the motor where such ventilation is desired. } , For a better understanding of the invention reference may be had to the drawings in which an auto body heater generally designated at iii is mounted upon a supporting member l2, pref 38 of the tubes 36. The strip 4| is cut into lengths substantially the length of the semi circular tubes 36 and are then bent to substan tially the curvature of the tubes 36 and secured in heat transfer relation to one of the flat por tions 38 of each of the tubular members 38, as ' by soldering, or a similar manner. As is evidenced from the above description relative to the drawings, when in assembled posi tion the radiating ?ns 40 provide generally 10 radially directed passages into the interior of the core‘. The zigzag character of the passages 42 prevents direct entrance of air into the in erably the dash board of the‘ vehicle. The heater 15 structure comprises a base plate i4, preferably . terior of the core and causes turbulence of the entering air, thereby obtaining maximum heat formed of a sheet metal stamping, substantially circular in shape and having a peripheral ?ange iii. The base plate I4 is provided with diamet - rically opposed openings i8 adjacent the outer 20 periphery which have threaded bushings 20 ex tending therethrough. Upper and lower headers ing of the air. ' 15 . A motor illv having afan i2 thereon is mount ed‘ within the core substantially central of the core and base plate i4, and is secured to the plate l4 by means of a mounting or supporting 20 plate 64 which is substantially circular in shape 22 and 24 respectively are provided, and as they ' and to which the motor is removable mounted by are substantially identical only one need be described for an ‘understanding of both. The head er 22 is preferably constructed of the split type having a. male half 24 and a female half 24 which are preferably push ?tted together and are of such ‘a shape that when the two halves are in assembled position the header has substan tially ?at elongated side portions‘ 28 within which transversely extending elongated slots '30 are spaced longitudinally of the header. The header 22 is enclosed at its forward end and has a re duced substantially circular opening with an outwardly directed annular ?ange 32- adjacent its rear end over which a header tube 34 is con means of nuts and bolts 56, or the like. The mounting or supporting plate 54 extends out wardly beyond the outer periphery of the casing of the motor 50, and is there provided with open ings 58 adjacent the outer periphery of the plate 54 at spaced intervals therearound. The open ings 58 are aligned with openings in the base plate l4 and suitable means such as screws 60 are provided for removably securing the supporting plate 54 to the base Plate l4. . A substantially circular shroud ,62 having a central opening 64 is removably mounted at the forward edge of the core formed by the headers 35 22 and the foremost tube It and radiating ?n nected in communication with the interior of. the header. The header tube 34 ?ts within the bushing 20 which in turn ?ts through an open ing in the dash. The heater is thus held in place on the dash by means of nuts 35, or the like, oiiset so that the ‘opening I4 is positioned mate rially to the rear of the foremost tube 36 and slightly to the rear and in surrounding relation which may be threaded over the bushing 20. Substantially semi-circular ?attened cross er in length so that it requires a minimum of 40, the shroud 62 being centrally axially inwardly to the fan 52. This materially shortens the heat space within the automobile body, and also con tubes- 36 communicate with the interior of the ' ?nes the discharged air to the opening 84. headers through the slots 30 and thus communi A louver plate or ring 66, preferably formed of cate the upper. and lower headers with each a sheet metal stamping, is substantially circular other, and with the headers form, a substantially in shape and has a radially outwardly directed circular core for the heater. The tubes 3‘ are , annular ‘?ange 88 which is adapted to seat against elongated in one transverse direction through the and be removably secured. in a suitable manner, tubes so that they have ?attened side portions a to the shroud 82. The face of the plate ‘I is directed radially inwardly of the heater. Radiat ing ?ns 40 are secured to, one of the substantial ly ?at portions 38 of each tube and are located in assembled position between adjacent tubes. ' The radiating ?ns'40 are formed from a sheet metal strip of a material with good heat con provided with louvers ‘ll which extend trans- versely of theface of the plate it and are bent. inwardly with their faces directed downwardly so that air‘impinging thereagainst ‘is directed downwardly. ‘ ' -. A pair of doors or ba?ies ‘II and ‘I2 substantially ducting characteristics, preferably copper, by semicircular in shape are pivotally mounted to passing the strips through spaced gears of such the louver plate 68 so that each baiiie or door may construction that the strip is shaped to provide be pivoted about two separate vertical axes. The transversely extending zigzag grooves 42. The mounting means for each of the doors comprises grooves 42 are trench-like and zigzag in char a U-shaped hinge support 13 ?xedly secured to acter, and the grooves 42 may be considered as the inner face of the louver plate 86 by means being divided into a plurality of portions or sec of rivets, or the like. A hinge 14 with spaced tions 44, 46 and 48 transversely of the strip so substantially parallel sides 16 is pivotally secured that all of the sections lying in one plane longi- . to the hinge support 13 a substantially 65 tudinally of the strip are parallel to each other, vertical axis by means of about v rivets 18,’ or the like. as for example all of the sections 44 are parallel The inner end of the side 16 of the hinge is piv to each other, while adjacent sections, such as otally attached to one of the doors ‘H or 12 by 44 and 46, are angularly disposed relative to each means of rearwardly projecting lugs 80 on the 70 other so that a direct straight line path through doors which have openings therethrough cooper 70 the groove is avoided. . ating with openings in the hinge ‘I4 and held in The grooves 42 have a depth substantially the place relative thereto by means of rivets 82, or same as the distance between the tubular ele the like, so that the doors or baiiles may be mova ment 36 and have a transverse width substan ble about the vertical pivot pins or rivets 82. 75 tially the same as the straight or flat portions It is evident from the above that a construc 75 3 ~ ' area-res tion is provided for directing the air from the heater so that as the air passes through the louvers it is directed downwardly, and by piv otaliy mounting the doors or bailles so that each one is pivotaliy mounted about two separate axis, the volume and direction of the air leaving the heater may be varied in a great many different manners. For example, each of the doors may .be pivoted about their axis so that they may be pulled away from the face of the heater with the doors lying in substantially the same plane,‘ or they may be so pivoted that .the air may be directed by eitherof the battles to either side of the heater. v , _,A front cover 9| substantially circular in shape and having a central opening 92 is provided over the front of the core, the central opening 82 being in alignment with the doors ‘II and ‘I2 and hav ing an inwardly directed annular ?ange 83 which bears against the louver plate 68. The outer peripheral edge of the cover Si is ?anged as at 94 to ?t over the outer periphery of the shroud 62 in snug engagement therewith and core as sembly. The cover 9| is removably held in place on the core by means of spring strips 95 which .have inwardly curved rear edges which ?t within depressions in the ?ange it of the back plate I4 and have front tongues 96' which fit within slots in the front cover 9i. In the structure shown in Fig. 6 a modi?ed mounting for the motor within the core is pro vided in which the motor 50 is enclosed within a shroud or casing 86 which is suitably secured to the front face of the motor and extends rear wardly so that the rear edge is in annular contact with the motor mounting or supporting plate 54. Openings 81, 88, 89, and 90 are provided in the base plate I‘, the motor mounting or supporting plate. ‘ 54 and in the casing of the motor Iii, so that rela tively cool outside air may be drawn through the motor by the low pressure area created by the fan to cool the motor and keep it in proper oper invention, the scope of which is commensurate with the appended claims. What we claim is: 1. In a heater having an open-face, a louver plate over said open face. said louver plate hav ing transversely extending, downwardly directed louvers, bafiies forward of said louver plate for closing said open face, and elongated mounting means one end of which is pivotaliy attached to each of said homes and the other end of which 10 is pivotaliy attached to said louver plate‘. 2. In a heater having an open face, a louver plate over said open face, the louvers being ar ranged to direct air passing therethrough down wardly, baiile plates forward of said louver plate 15 for closing said open face, and elongated mount ing means one end of which is attached to said . bail'ies for pivotal movement of said bailles about axes at an angle to said louvers and the other end of which is attached to said louver plate for "20 pivotal movement with respect to said louver plate. i 3. In a heater having a substantially. round core and an open face in which a fan and‘ motor . are mounted within said core, a louver plate over 25 said open face, said louver plate having trans versely extending downwardly directed louvers, bai'iles forward of said louver vplate for closing said open face, and elongated mounting means one end of which is pivotaliy attached to each of 30 said bailies and the other end of which is pivotally attached to said louver plate. ’ 4. In a heater having a substantially circular core with a forwardly facing opening and in which a fan and motor are mounted within said core, a shroud mounted on the front of. said core having a portion extending rearwardly in sur rounding relation to said fan to provide a con ?ning discharge opening for the heated air, a louver plate over said opening secured to said shroud, baille plates forward of said louver plate for closing said opening. mounting means piv otaliy attaching said baiile plates to said louver 40' ating condition. This is particularly important 7 plate, saidshroud, louver plate and ba?les form the present one in‘ which ing a removable unit, and‘ means removably 45 the motor is mounted~within the core of the mounting said-shroud, louver plate and basics heater and subjected to the heat from the ligeating as unit on said core. . ' in structures such as radiator. - Formal changes may be made in the speci?c embodiments of the invention described without so departing from the spirit and substance of the ~(ltliA‘llDE H. F. WHITLARK. FREDERICK A. WEIHE, Jll.