US2934043A - Rotary pump, motor or the like - Google Patents

Description

April 26, 1960 H. R. DEL Rico 2,934,043

ROTARY PUMP, MOTOR oR THE LIKE Filed Jan. 16, 1958 b lll/r11,

INVENTOR.

United States Patent O' ROTARY PUll/IP, MOTOR OR THE LIKE Herencia R. Del Rico, Beverly Hills, Calif.

Application January 16, 1958, Serial No. 709,380

6 Claims. (Cl. 121-60) My invention relates to rotary units, such as fluid driven power motors or pumps, and more particularly to rotary apparatus applicable for uses with elastic uids and having means for providing maximum torque fo'r the driven shaft for the unit with a minimum of elastic uid supplied thereto under pressure.

Accordingly, an object of my invention is to provide a rotary power unit having a pair of cylinder banks, each bank consisting of a cylinder block member and each of which being provided with a plurality of suitably positioned pistons, also having a suitably arranged olf center shaft for providing piston strokes so that the elastic fluid, such as air or other suitable medium, when supplied under pressure, will cause said pistons to become actuated, thus causing said cylinder block members to rotate and at the same time providing means for ro'tating the ily wheel of said power unit and for maintaining such rotation in unison, during the operation of said apparatus.

Another object of my invention is to provide said power unit with a suitable air ow control means, adapted for supplying elastic uid into said pistons of the apparatus at a steady uid dow and constant quantity.

A further object of my invention is to provide said power unit with means for maintaining proper rotative relation between said pair of cylinder blocks and said ily wheel, when said power unit is in operation.

Another object of my invention is to provide said power unit with suitable gear reduction means for increasing the torque and power of the driven shaft when said apparatus is in use.

My invention also has for its objects to provide such means that are positive in operation, convenient in use, easily installed in a working position and easily disconnected therefrom, economical in manufacture, relatively simple, and of general superiority and serviceability.

Other and further objects and advantages of my invention as will hereinafter more fully appear, I attain by the construction herein shown on the drawings and described in the specification, forming a part of my application.

Reference is had to the accompanying drawings, in which the similar reference characters denote the same parts. Y

In the drawings:

Fig. l shows the front elevational view of the power unit, taken on line 1--1 of Fig. 2.

Fig. 2 shows a vertically sectional view of the power unit, taken in the direction of lines 2 2 of Fig. 1.

Fig. 3 shows a partly fragmentary view of the main bearing of the power unit, slightly enlarged, and taken from the top as disclosed in Fig. 2.

Fig. 4 shows a vertical sectional view of the uid ports and passages, taken on lines 4-4 of Fig. 3.

Fig. 5 shows a vertical sectional view of the power unit disclosing the relative positions of the rotation control rollers and control pins, taken in the direction of lines 5-5 of Fig. 2.

2,934,043 Patented Apr. 26, 1960 "ice Fig. 6 shows a fragmentary sectional view of the iluid inlet and exhaust ports and passages, taken on line 6-6 o'f Fig. 2.

Fig. 7 shows the rotation control bearings of the cylinder blo'cks in relation to the fly wheel of the apparatus, showing same in modied form.

Fig. 8 shows a fragmentary sectional View, taken from the left of Fig. 7.

Fig. 9 shows a fragmentary sectional view of the rotation control bearing, showing same in modified form.

Fig. l0 shows a fragmentary sectional and partly elevational view of the power unit, disclosing the position of the power gears in relation to the ily wheel of the apparatus.

Describing my invention more in detail, in its broader aspects, said invention comprises a housing 2, which is provided with a frontwardly extending shaft support member 4, also having a rearwardly extending housing or cover member 6 provided with a suitable hand grip member 8 which is held in place and positio'n by means of suitable threaded connection 10.

A power shaft 12 is provided in said frontwardly extending member 4, which is supported in its rotatable position by means of antifriction bearing 14, the front end section of said extending member 4 being provided with an end seal while said power shaft end being provided with a suitable fastener, such as chuck or the like, not shown.

The internally extending end of said shaft 12 is connected to a ily wheel ilange 16 having a fly wheel rim section 1S attached thereto and housing therein a pair of cylinder banks, as shown. It may be noted, that said ilange 16 and said ily wheel rim section 18, may, if so desired, be made in one piece in order to facilitate its manufacture.

Said fly wheel rim 18 is provided with a transversely dividing section or web member 20 having a suitable bearing, wherein the main journal 22 of the unit shaft 24 is mounted, and which is provided with a front olf-centereud section 26 and a rear off-center section 28, said rear section 28 being provided with a suitable shaft extension 30 which is held in place by means of a suitable locking or fastening member 32, as shown.

Said hand grip member 8 is provided with a fluid inlet` passage 34, the upper end of which inter-connects the inlet passage 36, which is disposed in said shaft extention 30 and leading into said cylinder banks, the fluid passing frontwardly into the rst stage of the inlet passage 38, then passing into' the second stage fluid inlet passage 40.

Said inlet passages 3S and 40 in said unit shaft'24 leading into said cylinder banks, consisting of said first and second stages, are each provided with a suitable fluid inlet and distributing passage section 42, while the passages 44 and 46 are each provided with their respective fluid outlet and distributing passage 48.

The rst and second stage of said power unit shaft 24 are each provided with suitable cylinders S0, which are disposed radially in the first and second cylinder blocks 52 and 54, respectively.

lt may be noted, that each cylinder block 52 and 54, are each provided with cylinder passages 56, each leading to their respective cylinders S0, also, the rst stage cylinder block 52 is maintained in position by means of a spacer 58, while the second stage cylinder block 54 is provided with a mounting washer 60 and a lock Washer 62 which is disposed in a suitable groove, as shown in Fig. 3, thereby holding the respective parts in place and position.

Each cylinder 50 is provided with a piston 64 which is of a conventional design and each piston is connected to a suitable connecting rod 66, also, each outwardly extended end of said connecting rods being connected to a fly wheel rim 18 and held therein in place and in pivotal position by means ofsuitable pivot pinmembers 70, as shown.

Obviously,` it may be noted that each of said separate rst and second stagesrof the apparatus are working independently of each other, and yet, in their respective rotations,f each unit contributes the necessary motive power to said ily wheel member. The elastic fluid passing through passages 38 of the first stage passes simultaneously into the passage 40 of the second stage. Since the first stage of the apparatus is in a diametrically opposite position in relation to the second stage, the respective distributing sections 42V of said first and the second stages areV positioned on the fluid inlet side and the outlet distributing sections 48 of the respective stages are positioned at the oppositeV side thereof, thus allowing the fluidV to flow into and through the inlet side passages 38 and 40 then passing into said cylinders and emerging at the opposite Yside at said distributing sections 48, and then flowing into land through the discharge passage 72 which is disposed at said rearwardly lextending shaft member 36 of said apparatus. Y

A volume of air under pressure passing through the uid inlet passage 34 is controlled by means of suitable control valve member 74 having suitable plunger member 76 disposed ktransversally of said air passage 34, as shown in Fig. 2. Y

Normally said control valve 74 is in closed position, the plunger 76 extending frontwardly and is supported in its frontward position by means of suitable spring member 78, having a nut 80 for holding the valve assembly in position, while the outwardly plunger end is provided withsuitable button 82, so that the operation of said air ow control valve may be facilitated.

The elastic fluid, in whatever form, is directed into the apparatus by connecting the air fluid inlet hose, (not shown) to the hose connector 68.

The fluid flow is directed through the inlet passage 34 when said control VValve 74 is depressed, allowing said fluid to pass into said inlet passage 36 and 38, then owing through the 'cylinder passage 56 entering said cylinders 50 of the lirst stage cylinder block 52, and simultaneously owing into the inlet passage 40 and the cylinder passage 56, passing into cylinders 50 of the second stage iirstand second stages 52 and 54 into said distributing outlet passages 48, then flowing into and through common discharge passage 72 of said shaft extension Si?.

In order to'maintain relative rotative positions between said y wheel rirn 18 and said cylinder blocks 52 and 54 of said first and second stages of the apparatus,l when in operation, said webV member 20 is provided with suitable roller members 84, which are disposed at each face thereof and adjacent to the face of each respective cylinder block, while each cylinder block is provided with suitable companion rollers'86 and maintaining surface contact, so that when said cylinder blocks 52 and 54 are in rotation, said companion rollers 86 will follow a planetary movement and around said roller members 84, thereby causing said cylinder blocks and said fly Wheel rim together with said y wheel ange'16 to rotate in uni-V son, being'supported in their rotation by means of said connecting rods 66 and actuated by said pistons 64 during leir reciprocal movement in their respective cylinders As shown in Figs 7 and 8, the apparatus in modified form comprise a dividing wall or web section 20 which is provided with a set of antifriction'bearings 88 adapted for maintaining the relative rotation of said cylinder blocks and said ily wheel.

The number of said bearings thatare required for providing a proper function of the apparatus, are in direct relation to the number of pistons employed. in each of said cylinder blocks 52 and 54.

Fig. 9 discloses a removable dividing wall section 90 which is mounted interiorlyof said fly wheel rim section 18, said dividing wall being secured in its position in a conventional manner. A suitable crank bearing 92 is mounted in said dividing wall 90 having a crank pin 94 disposed at one side for engaging a bushing disposed in the cylinder block of the first stage and also having a crank pin 96 at the opposite side of said bearing 92 adapted' for engaging a bushing disposed in the cylinder block of the second stage of the apparatus.

Said crank pins 94 and 96 are disposedtdi'ametrically opposite to each other and each pin Yextending outwardly from said crank bearing 92, as shown.

Fig. l0 discloses a power unit 100 which comprises the component partsras disclosed in Figs. 1 to 3, having the forntwardly extending ily wheel shaft 12 connected by means of a set of gears 102 to a suitable power shaft 104, which 'is mounted lin a Vconventional manner and having a driver shaft`106 supported in place by means of said bearing 66 which .is disposed in a housing front extension 108.

Y Obviously it may be noted that the apparatus using the elastic duid in the manner herein described, may be used as apower unit or as a pump, or if so desired, said apparatus may be used for securing a vacuum or pressure supplying unit, and as a heavy duty power unit which may be used in industry.

Therefore, while I have thus described my invention with great particularity, it will be clear that the same may be modified throughout a wide range.

I accordingly do not propose tobe limited tothe exact details of construction herein shown onthe drawings and described in the specification, but reserve the rights in practice to make the necessary changes and modifications therein, which may come Within the scope of the appended claims.

' I claim is my invention:

1. In the apparatus of the class described the combination of, a two stageunit rotatably mounted upon a common unit shaft, each stage separated by a web section disposed in a y wheel rim Ahaving a flange section and connecting a power shaft, a set of roller members mounted in said web section of said fly wheel rim and extending toward the adjacent face of each cylinder block, and a set of companion rollers mounted upon the face of each cylinder block and located in an adjacent position to said web section, said roller members and said Vcompanion rollers being held and maintained at their respective outer surface contact, Vthereby maintaining a relative and synchronous rotative relation of said cylin= der blocks and said y wheel of the apparatus.

' 2. In the apparatus of the class described the combination of, a two stage unit mounted upon a common unit shaft, each stage separated by a web section disposed in a y wheel rim having a flange section and connecting a power shaft, a set of crank bearings provided in said web section and rotatablyrmounted therein, said cran'k l bearings having crank pin members disposed at each side nation of, a twoV stage unit rotatably mounted upon a common unit shaft, each stage separated by a web section disposed in a y wheel ri'm'having a flange section and 'connecting a power shaft, arset of antifriction bear- ,Y ings mountedfin sai'drwebv section, a crank bearing rop tatally mounted in each of said antifriction bearings havingY af'crank pin at eachside thereof and outwardly extending thereffrom, each` crank'pin being in one-'half offcenter position in relation to the'full o-center position of said unit shaft section, a set of bearings in each of said cylinder blocks disposed at the adjacent face to said web section adapted for mounting the respective crank pins of said crank bearings, for maintaining a rotative relation of said cylinder blocks and said y wheel.

4. ln the apparatus of the class described, the combination of a two stage unit having a y wheel and rotatably mounted within a housing and upon a common unit shaft, each separate stage comprising a cylinder block and each cylinder block being separated by a web section disposed in a y wheel rim, said fly wheel rim having a ange connecting a power shaft, a set of fluid passages in said unit shaft connecting each cylinder block of said two stage unit for directing the uid tiow therein and into each of said cylinder blocks and for causing said two stage unit together with said ily wheel rim to rotate in unison, a set of roller members mounted in said web section of said y wheel rim and extending toward the adjacent face of each cylinder block, and a set of companion rollers mounted upon the `face of each cylinder block and located in an adjacent position to said web section, said roller members and said companion rollers being held and maintained at their respective outer surface contact, thereby maintaining a relative relation of said cylinder blocks and said fly wheel of said apparatus.

5. In the apparatus of the class described, the combination of a two stage unit having a y Wheel rotatably mounted within a housing, said stage units being mounted upon a common unit shaft, each separate stage comprising a cylinder block and each cylinder block being separated by a web section disposed in a y wheel rim, said y wheel rim having a ange connecting a power shaft, a set of fluid passage means in said unit shaft connecting each cylinder block of said two stage unit for directing the fluid flow therein and into each of said cylinder blocks and for causing said two stage unit together with said y wheel rim to rotate in unison, a set of crank bearings provided in said web section and rotatably mounted therein, said crank bearings having crank pin members disposed at each side thereof and extending outwardly therefrom, a set of bearing bushings in each of said cylinder blocks disposed at their adjacent faces in relation to said web section and adapted for receiving therein said extending crank pin members, and thereby maintaining a rotative relation of said cylinder blocks of said two stage unit and said `ily wheel of said apparatus.

6. In the apparatus of the class described, the combination of a two stage unit provided with a `fly wheel and rotatably mounted within a housing, a cover in said housing having a common shaft unit for mounting said two stage unit thereon, each separate stage comprising a cylinder block and each cylinder block being held in separate position by a web section disposed in a y wheel rim, a flange in said fly wheel rim connecting a power shaft and rotatably mounted at the front end 0f said housing, a set of uid passages in said unit shaft connecting each cylinder block of said two stage unit for directing the fluid ow therein and into each of said cylinder blocks and for causing said two stage unit together with said y wheel rim to rotate in unison, a set of antifricti'on bearings mounted in said web section, a crank bearing rotatably mounted in each of said antifriction bearing having a crank pin at each side thereof and outwardly extending therefrom, each crank pin being in one-half oli-center position in relation to the full olcenter position of said unit shaft section, a set of bearings in each of said cylinder blocks disposed at the adjacent face of said web section adapted for mounting the respective crank pins of said crank bearings, for maintaining a relative relation of said cylinder blocks and said fly wheel during rotation of said two stage unit of said apparatus.

References Cited in the le of this patent UNITED STATES PATENTS 304,553 Parsons et al. Sept. 2, 1884 717,897 McCulloch Jan. 6, 1903 756,362 Hazelrigg Apr. 5, 1904 1,890,041 McLeod Dec. 6, 1932 2,054,110 Worth Sept. 15, 1936 2,585,574 Muller Feb. 12, 1952 2,814,277 Jimerson Nov. 26, 1957 OTHER REFERENCES Rotor Portable Pneumatic Tools Catalog, copyright 1929, The Rotor Air Tool Co., page 12 relied on.

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