US1166044A

US1166044A - Rotary fluid-pressure motor.

Info

Publication number: US1166044A
Application number: US473515A
Authority: US
Inventors: Francis M Floyd
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-01-27
Filing date: 1915-01-27
Publication date: 1915-12-28
Anticipated expiration: 1932-12-28

Description

. I F. M. FLOYD.

ROTARY FLUID PRESSURE MOTOR.

APPLICATION FILED JAN-27,1915.

3 SHEETS-SHEET I.

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F. M. FLOYD.

ROTARY FLUID PRESSURE MOTOR APPLICATION HLED JAN. 27, 1915. 1,166,044. Patented Dec.28,1915.

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ROTARY FLUID PRESSURE Fromm APPLICATION FILED JAN. 27. I'SJI5-I Patented Dec. 28, 1915.

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FRANCIS M. FLOYD. OF ELKVILLE. ILLINOIS. i

ROTARY FLUID-PRESSURE MOTOR.

1 i MUM Specification of Letters Patent.

Patented Dec. 28,1925.

Application filed January 27, 1915. Seria1No.4,735-.

' To n/i lllmm if "my concern Be it known that I, Fluxcts .\l. l*i.o1'o a citizen of the l -nitcd States,rcsnl1ng at lllk ville.iin the county of Jackson and State of Illinois, have invented certain new and useful ln'iprovements in Rotary Fluiddressure lt'iotors, of winch the tollowlng 1s a spec1 fication.

This invention relates to rotary fluid presquently admitted under pressure to the pis ton chamber, andit is one aim of the inventlon to simplify the construction ofsuch motors and to render the same more etlicient.

In the drawings, two of the motors embodying the present invention are illustrated v as a rrangcd in connected relation, but it will be umlerstood that one or more than two of the motors may be so connected and inasmuch as the motors are-of ctmnterpart construction a description of one will suttice for both.

Each. of the motors includes a casing which is mounted in any suitable manner upon a base 1 and this casing is formed in One object. of the invention is to so arrange the explosion chamber that it will serve also as a valve for controlling the admission of theexplosi've charge to it and for controlling the passage of the products of combustion from it to the piston chamber.

The invention alsocontemplates so constructing and arranging the tplosion chamber that it may serve as a timer, thereby obviating-the necessity-of employing a separate and distinct device for this purpose.

Another aim, of the invention is to provide between the inlet to the piston chamber and the exhausttherefrom av novel means for closing the sand chamber between these two points during a predetermined travel of the piston, so that the piston will receive the full force of the exploded charge prac tically up to the moment of exhaust. and incidentally the invention aims to provide novel means'for moving the gate into and out of position to closethe said piston chamber. j i

In the accon'ipanying drawings: Figure 1 is a vertical front to rear sectional view through one of the motors embodying the present invention. Fig. 2' is a view partly in elevation and partly intransvcrse section illustrating a pair of the motors. Fig. 3 isa. View similar to Fig. 2, but. viewing the Fig. l is a. transverse sectional view. Fig. 5 is a view in side elevation of the cam disk which coustitutes an element of the means for actuating the explosion chamber and the. gate.

Corresponding: and like parts are referred to in the following description and indicated in all the views of the atarmnpanying draw-' ings by the same reference characters.

two lateral halves or sections provided with flanges 2 permitting 'of the sections beingconnected together by bolts 3. For convem ience in describing the construction of the casing, the same will l'iereinafter be. referred to as though castinte'gral throughout. The casing includes an annular piston chamber 4 and spaced sides concentric to the said chamber and provided axially with laterally projecting collars or bearings G for the shaft of the motor, the said shaft being indicated at 7. The inner ends of the collars 6 are interiorly increased in diameter as indicated at 8, and receive the ends of the hub 9 of the rotor, the rotor consisting in part of a disk 10 integral with the said hub and rotatably fitting between the sides 5 of the casing. The hub 9 ofthe. rotor is of course keyed or secured in any other suitable manner to the shaft 7. In order-that there may be no leakage, of the motive fluid, the inner faces of the 5 of the casing and the faces of the rotor disk 10 are formed with registering annular grooves 11 receiving packing rings 1'2. The disk 10 of the rotor carries a piston including a head 13 which is preferably cast integral with the periphery of the disk and at one end is of a diameter to snugly tit within the piston chamber-4. This piston also includes a head 14 and packing rings 15 and the rings 15, are disposed between the hcadslii and lt'and a. bolt 16 is secured through the head 14 and through the packing rings and into the head 13. The

wall of the piston chamber is provided with an inlet port 17 and the head liof the piston has an inclined or oblique face 18 which is presented at an angle toward the said port 17 and it is against this face of the p1s-- ton that the explodedcharge is directed.

The casing for the motor is provided at its top with a hollow spherical secondary casing including an outer wall 19 and an inner wall 20, the space between the walls forming a water jacket, indicated at 21, and this jacket is provided'with an inlet 22 and an outlet 23 and is to be supplied with water in any suitable 'manner. The interior of the secondary casing, considered as a whole, is

smoothly ground, and receives for oscilla-' tory movement a hollow spherical explosion chamber 24.. The-walls l9 and of the sec .ondarycasingjare integrally connected at diametrically opposite points to form bearings 25 and 26. Theexplosion chamber 2% is provided at one side with a solid trun nion 27 and at a-dian'ietrically oppositepoint with a hollow trunnion 28 ivhich'is placed a in communication withthe interior of the said chamber 24 by a relatively small passage 29. ,The trunnio'ns 27 and" 28 are rotatably fitted respectively in the bearings 125 and 26. Into the end of the trunnion 28 Qthere is fitted a spark plug 30 which has se s secured upon the wall 19 and carries a brush fwhich has its end resting in en-- 25* v. a, m ntv with the periphery of the timer 'dina'ry i manner.

cared to its outer end a timer disk 31, the periphery of which is of insulating material, asindicatedat 32, except-at the point of conwhich :is indicated at 33. A bracket 34:

is Thefb cket 3 ks of course insulated from,jthe"' ll 19 and aconductor wire 36 is connected to the a nm gfi for thepurpose of conducting an electr current through the arm to the brush 5 dthrough this brush and the timer disk the contact point 33 is in contact witht eflbrushfand to one of the terminals of the spark plug, the" current being grounded across the gap between the two terminals of the spark plug in the or- The wall of the explosion chamber is provided with a port 3T which is designed to be brought into registration with the port 17' in the wall of the piston chamber under conditions which will be. presently explained, and the said port 37 is 'alsodesigned to be brought intoregistration with a port 38 opening through the walls of the secondary casing. 'A needle valve casing39' is secured to the secondary cas ng and has its outlet 40in communication with the port 38 and this valve casing is pro ided with an inlet 41 for the liquidfuel and. with an inlet 42 for air, under pressure. The needle valve .properis indicated by thenumeral 43 and byreference .to Fig. 1 of the drawings it will be apparent that it may be adjusted so as to control;the supply of the It air under pressure to the valve casing.

will now be understood that the air under in communication with the port 38;

In order that the explosion chamber may be oscillated upon its trunnions so as to brin the was? successivelv into -re istra--,

C) o D tion with the ports 38 and 17 a gear 44- is fixed uJon the )roectin end of the trunl .l a

nion 27 and meshes with a segmental gear 45 located at the outer end of a rock arm 46.

This groove is continuous and for a portion of its length is concentric to but relatively remote from the shaft 7. as indicated at 51, the remainingportion of the groove, indr cated at 52, being also concentric to the shaft I but locatedrelative close thereto. It will now be understood that upon rotation of the disk 49 the arm 46 will be oscillatedas the walls of thelportions 51 and of the cam groove 50 ride over the roller 48, and due to the gear connection between the arm and the trunnion 27. ofthe explosion chamber this chamber will he oscillated inthe manner heretofore (lescribeth \Yhen the roller 48 is in the portion 52 of the cam groove 50 the chamber 24' will be in position with its port 37 in communication with the port 38 and at this time the explosive charge will be periuitteilt'o rush into the said explosion chamber. "il pon the contlnued rotation of the shaft 7 and the cam disk 49 and as the roller 4-8 enters the portion -51 of the cam groove, the explosion chamber will he oscillated in .adirection to move the port 37 past and out :of communication -\v-ith,theport 38.

I As the port 37 passes the port 38 the contact point 33 of thetimer disk will come into contact with the brush 35 and'a' portion of the mix- .ture, having entered the holloiv trunnion through the passage 29, the mixture will be exploded. I pon further rotation of the disk 4!) the explosion chamber will continue to more in thcdirection stated until the port 3 7 registers with the port 17, whereupon the products of combustion under high pressure will be-allowed to-ru'sh from the explosion chamber into the piston chamber and against the inclined face of the "piston head. This operation is of course repeated during the reyolution of the shaft 7. and the cam disk carried thereby. r 1 1 The'wall of the piston chamber is provided with an exhaust port 53 and. as be fore stated, a gate is provided movable into and out of position to close the piston charm ber between this port and the inlet port 17. This gate is indicated by the numeral 54; and is in the nature of a plate, mounted at its lateral edges in the grooves formed in th paced portions of a guide 56 integral lill" will be observed that the grooves are rel atively deep and that they open into the piston chamber and for this reason the gate is relatively wide or, in other words, of greater Width than the interior of the piston chamher and may consequently completely close the said chamber, when in the position shown in Fig.1 of the drawings. A bracket 57 is mounted upon the wall of'the casing and mounted for oscillatory movement upon this bracket is a segmental gear including toothed 'portions 58 and 59. The gear 58 meshes with a rack 60 upon the under side of the gate 54 and the gear 59 meshes with a segmental gear 61 at one end of a rock arm 62, mounted for oscillatory movement, as at 63, upon the wall of the casing. This arm 62- includes an extension 64 carrying a roller 65 whicheworks in a cam groove 66 formed in the side of the cam disk 49 and surrounding or located exterior of the groove 50. The groove 66 for a portion of its length is concentric to the shaft 7 and located relatively remote therefrom and this portion is indicated at 67. The groove also includes a portion' 68 which is also concentric to the shaft but located nearer thereto than the portion 67. By reference to Fig. 1 it will be observed that when the roller 65 is in the portion 67 of the groove 66 the gate 54 will be in position to close the piston chamber between the inlet and exhaust ports thereof, audit will further be understood that as the cam disk is rotated and the walls of the portion 68 of the groove 66 travel past the roller 65 the arms 62 and 64: will be oscillated and, by reason of the connection be tween the arm 62 and the segmental gear 59 and the connection between the gear 58 and the gear 60, the gate 5 will be slid in an outward direction so as to allow the piston to pass, afterwhich the gate will be automatically returned to the position shown in Fig. l.

Mounted upon the-motor casing is a compressed air storage tank 69 having an inlet connected by a. pipe 70 with the inlet 42 to the needle valve casing. In order that the -air may be pumped into the tank 69 while the motor is in operation, air pumps are provided and each of these pumps includes a cylinder 7 O mounted upon a suitable sup port 71 which, in the present instance, exends between the motor casings and an air supply pipe 72 leads from the pump cylinder to the tank 69. Each'cylinder 70 is provided in its head with a check valve 73 and mounted to reciprocate in each cylinder is a piston, the head of which is indicated by the numeral 74 and is provided with a spring pressed check valve 7 5. A pitman 76 is connected to the piston head and to the strap 7 7 of an eccentric 78 fixed upon a shaft 79 mounted in suitable bearings 80 upon the motor casings. The shaft is driven from the shaft 7through the medium of the gcarmg shown in Fig. 3 and indicated at 81. Having thus described the invention. what is claimed as new is: p I

1. In a motor of the class described, a piston chamber having an inlet port, a casing in communication with the port. a piston working inthe chamber, the casing having a fuel inlet port, a shaft driven through the travel of the piston, an explosion chamhcr mounted for oscillatory movement within the casing and having trunnions projecting from the wall of the casing at diametrically opposite points, one of said trunnions being hollow and in communication with the interior of the said explosion chamber, a spark device mounted within the said trunnion and arranged for oscillation therewith, a timer oscillated through the medium of the said spark deviceya contact for the timer, a cam member mounted upon the said shaft. and a movable member operatively connected with the other one of the said trunnions and actuated through the medium of the cam member for oscillating the explosion chamber.

2. In a motor of the class described, a piston chamber having an inlet port, a ca ing in communication with the port, a piston working in the chamber, the casing having a fuel inlet port, a shaft driven through the travel of the piston, an explosion chamber mounted for oscillatory movement within the casing and having trunnions projecting through the wallof the casing at diametrically opposite points, one of said trunnions being hollow and in communication with the interior ofthe said explosion chamber, a spark device mounted within the said trunnions and arranged for oscillation therewith, a timer oscillated through the medium of the said timing device, a contact for the timer, a cam member mounted upon the said shaft, a gear mounted upon the other one of the said trunnions, andra rock arm having operative connection with the gear and with the said cam.

3. In a motor of the class described, a.

piston chamber having an inlet port, a casing in communication with the port, a piston working in the chamber, the casing having a fuel inlet port, a shaft driven through the travel of the piston, an explosion chamber mounted for oscillatory movement within the casing and having trunnions projecting from the wall of the casing at diametrically opposite points, one of said trunnions being hollow and in communication with the interior of the said explosion chamber, a spark device mounted within the said trimnions and arranged for oscillation there with, a timer oscillated through the medium of the said timing device, a contact for the timer, a'cam member mounted upon the said shaft, a gate slidable into and out of position to close the piston chamber between the exhaust and inlet thereof, and operative connection between the gate and said cam memher for actuating the gate.

4;. In a motor of the class described, a piston chamber having an inlet port, a casingvin communication with the port, a piston' working in the chamber, the casing hav ing a fuel inlet port, a shaft driven through the travel of thepiston, an explosion chamber mounted for oscillatory movement within the casing and having trunnions projecting through the wall of the casing at diametrically opposite points, one of said trim nions being hollow and in communication with the interior of said explosion chamber, a spark device mounted within the said trunni'ons and arranged for oscillation therewith, a timer oscillated throulghthe medium of the said spark device, a contact vfor the timer, a cam member mounted upon the said shaft, a gear mounted upon the other one of the said trunnions, and a ,rock armhaving operative connection withthe gear and with the said cam, a gate slidable into and out of position to close the piston chamber FARNCIS M. FLOYD.

Witnesses:

R. Q. KiMMnL, VVILLIAM DAVIS.-