US1291618A - Combined fluid pump and motor. - Google Patents

Description

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Patented Jan. 14,1919.

2 SHEETS-SHEET 2 UNITED sirArrEs Parnu carica..

GUSTAF OLSON, OF CHICAGO, ILLINOIS, ASSIGNOR F ONE-HALF TO WILLARD M.

Mouwen,

OF CHICAGO, ILLINOIS.

COMBINED FLUID PUMP AND MOTOR.

, To all 'whom'z't may concern:

tion is shown in the accompanying.

Be it known that I, GUs'rAF OLSON, a citizen of the United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful improvements in Combined Fluid Pumps and Motors, of which the following is a specification.

The main objects o1' this invention are to provide an improved device capable of being operatedto compress or pump ii'uidsor to be driven by iiuids to act as a motor; to. provide an improved construction and arrangement of the parts o1' said device; and to provide 'improvedv means for cooling and lubricating said device.

An illustrative embodiment of this invenings, in which:

Figure 1 is an end elevation of the device, the end plate being omitted and some of the parts being shown in section.

Fig. 2 is a transverse sectional elevation i of the device.

' casing 1, supp Fig. 3 is a sectional detail of the rotor.

Fig. 4 is a sectional detail of the rotor ring which coacts with the casing to provide a seal for the suction and compression chamber, and with 'the rotor to provide guideways for the vanes.

Fig. 5 is a face view of the same. Fig. 6 shows in detail one of the bearin members to which the vanes are connectec Fig. 7 shows in detail one of the vanes.

Fig. 8 is a sectional detail showing the formation of the fluid inlet and outlet.

The device has been shown in the drawings as an air compressor or pump and is hereinafter so described, but it will be understood-that it is equally suitable for use with other fluids as a compressor or pump, or that it may be used `as a Huid loperated motor by an obvious reversal of some ofthe parts.

In the construction herein illustrated, a

orted on va standard 2, is provided ywith a posite formation of two eccentrically arranged bores, the centers of which are designated 5 and 7 respectively. The wallof the chamber therefore comprises two op.- posed arcuate parts 4 and 6.

The rotor comprises ,a disk-shaped member 8 having a hub portion 9 keyed to the shaft 10 and having an axially disposed Specification of Letters Patent. Patented Jan, 14:, Application filed September 11, 1916. Serial No. 119,462. l

,formed in the casing draw l chamber 3 which 1s a com-V annular flange 11. The shaft 10 is journaled in a bearing 12 formed on the casing 1 with its axis coincident with the center 5, whereby the rotor is mounted so that the periphery of the flange 11 fits with the wall 4 and provides a space' 13 between the peripheryof said flange and the wall 6. ,x A ringshaped member 14 is secured to the flange 11 so as to overlap the inner and outer periphery thereof and I rovide a projecting iange which is rotata ly supported in a circular recess 15. The recess 1 with its center coincident with the center 5 of the wall 4 provides a circular shoulder portion against which the projecting iange art of the ring 14 lits. The ring 14 thus orms a closure for the space between the outer periphery l of the flange 11 and the walls 4 and 6, and

coacts with the disk 8 and iange 11 to provide guideways for the vanes 16.

A plurality rotor, being dially disposed slots 17 lformed in the disk 8 and ange`11. These vanes are recipro cated in their respective slots through the action of the guide member 18, so that they are urged into contact with the annular wall 6. as they are moved by the rotor around the lower part of the cham er 3 and are retracted as they are moved through the upper part of said chamber.

The guide member 1.8 is rotatably mounted on a shaft or pin 19 journaled in the casing cover 20, with its axis coincident wit the center 7 thereby being eccentrically disposed with respect This arrangement of t bearin s 22 provides a rigid but shitable pivota support for the inner' ends of the vanes 16 and allows for their swinging movement relative to the guide member 18 as they are rotated around thechamber 3.

Inlet and outlet ports 29 and 30 are formed in opposite sides of the casing 1, so as to communicate with respectively opposite ends of the space 13. Y

In-the construction kherein shown,ithe'se of vanes 16 are carried by the i shiftably mounted in the ra- 15, which is tion of heat created by the operation of the device.

The construction andv arrangement of the rotor, the guide member 18 and cover 20 as herein illustrated provide an annular corn partment 31 between lall of the parts inwardly of the inner periphery of the flange 11. rll`his space is adapted to contain a quantity of oil which serves the double function of providing a lubricant for all the moving parts of the device and keeping them cool.

The operation `of the device herein shown is as follows:

rlFhe shaft 10 is to be driven by a suitable source ofvpower which may be connected to the usual shaft coupling 32. For following out the operation of the device, .it will be assumed that the rotation is in the direction of the arrow 33.

The rotation of the rotor and the guide member 18 about their eccentric centers 5 and 7 causes the vanes 16 to reciprocate so that as the vanes approach the right hand end of the space 13 (Fig. 1), they are caused to move out into contact with the annular wall 6, and recede as they approach the left hand end of said space.l As each of the vanes passs the annular opening 29, a vacuum-is created rearwardly thereof which is iilledY with air admitted through said inlet 29. As each of the vanes approaches the outlet 30,

the ail in advance of each of said vanes is compressed' and discharged through said outlet 30, as will be obvious.

Although but one speciic embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

I claim:

1. lin a device of the class described, the combination-ofa casing having a chamber therein, a rotor comprising a disk-shaped member journaled in said casing and having an axially disposed annular idange itting with a part of the wall of said chamber and providing a space betweenthe outer periph-A ery ci' said iange and the remaining part of the 'vv-all of Harige having formed therein, vanes shiftably mounted in said recesses, a ring secured to said Hangs said chamber, said diska'ndu radially disposed recesses fand adapted as to cause ripetere and overlappin ripheries thereo and coacting with said casingl to form a closure for the space betweensaid dange and the wall of said chamber,

l and -a guide member arran ed-to cause said vanes lto bear against sai `remaining 'art of the wall of said chamber during t eir movement through said space.

the inner andV outer pe` '2. In a device of the class described, the

combination of a casing having a chamber therein, a rotor comprising a disk-shaped member j ournaled in said casino and having an axially disposed annular providing a space lbetween the outer eriphery of said iange andthe remaining part of the wall of said chamber, said diskv and flange having radially disposed recesses 'formed therein, vanes shiftably mounted in 4tached ,to said casin and forming a closurel for the entire cham er. v v

' 3. lin `a device of the class described, the combination of a casing having a chamber formed therein, a rotor journaled ina bearing formed on one side of said casing and having the .periphery thereof tting with a portion of the wall of said chamber and providing a space between said periphe and the remainin said chamber, a p urality of radially movable vanes mounted on said rotor, a guide member rotatably mounted in a bearing formed on the oppositeI side of said casing eccentrically .of said rotor bearings, said member having anannular groove formed in the Jface opposed to said rotor, n ers formed on said vanes-and extending into said groove, and bearings pivotally .connected to said ngers and shiittably mounted in said groove.

t. In a device oi the class described, the' portion of the wall of'A ange e fitting v with a part ofthe Wallcf said chamber and of said chamico "ietfA iwl iis

an annular transversely disposed flan e yfitting with a (part of the wall of said cha ber and provi i ng a space between the outer l periphery of .said flange and remaining part of the wall of said chamber, said diskand I tlange vhaving radially disposed recesses formed therein, vanes shiftably mounted in said vrecesses, and, a guide member `arranged ,in said-casing eccentrically of said rotor to be engaged by said vanes so them to bear against said other annular vwall during the rotation of said y rotor, the opposed faces of said guide member and rotor being spaced apart axially so as to rovlde a compartment between t em including the space between the outer and i inner periphery thereof whereby to form a sealed chamber between said rotor and member to accommodate va 'quantity of lubricating and cooling fluid.

5. In a device of the class described, the combination with a casing having an oval recess with a circular shoulder portion concentric with the center of one end of the oval, la circular member mounted for. rotation about this end of the oval having a iiange seated in the said shouldered portion and with radial slots, vanes movable in the slots, and a guide member for ositively engaging the vanes for moving t em into and out o that ortion of the oval recess not covered by t e said circular member.

6 In a device of the class described, the combination with a casing having an opening for a shaft, an oval recess, of which one opening,

end is concentric with the shaft opening, a shouldered portion at the outer side of the recess which is also concentric with a shaft a recessed rotary member with radial slots fitting the recess and with a iange fitting the shouldered portion of the casing, a shaft mounted in the shaft openand secured to the said member, vanes slidable in the slots, a cover plate to fit over the recess having a projecting pin concentric with the other center of the oval, there being a space between the said rotary member and the recess at this end thereof, passages at the ends of the recess and a ide member freely mounted on the said pin in the recess of the rotary member having an annular recess for engaging the vanes to move them positively in both directions into and out of the said space when the rotary member is rotated. i

Signed at Chicago this 9th day of lSeptember, 1916.

GUSTAF OLSON.

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