US866591A - Fluid-motor. - Google Patents

Description

No. 866,591. PATENTED SEPT. 17, 190v:v

H. w. KIMES.

FLUID MOTOR.

APPLICATION FILED SEPT. 19. 1905.

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H. KIMES.

FLUID MOTOR.

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No. 866,591; PATENTED SFPT. 17, 1907. H. W. KIMES.

FLUID MOTOR.

APPLICATION FILED SEPT. 10. 1905.

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PATENTED SEPT. 17, 1907. H. w. KIMES. FLUID MOTOR.

APPLICATION FILED SEPT.1'9. 1906.

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PATENT OFFICE.

UNITED STATES HUGH W. KIMES, OF DAYTON, OHIO, ASSIGNOR TO VAILE AND RIMES, A FIRM COMPOSED OF JOHN H. VAILE AND HUGH W. RIMES, OF DAYTON, OHIO.

FLUID-MOTOR.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed September 19,1905. Serial No. 279,193.

To all whom it may concern:

Be it known that I, HUGH W. RIMES, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Fluid-Motors, of which the following is a specification.

My invention relates to a duplex motor primarily adapted to drive alternately duplex pumps.

One of the objects of my invention is to simplify the organization of duplex motors of the slide valve type by employing a direct mechanical valve-shifting connection between the right hand valve and piston rods, and a like connection between the left hand valve and piston rods.

Another object of the invention is to provide between the valve chest and motor chest a distributing chest designed to direct the flow of the fluid, so as to avoid said mechanical cross connecting valve-shifting devices.

Another object of the invention is to reduce to a minimum the fluid passages for directing the flow of the fluid.

Another object of my invention is to provide a duplex motor organization having four valve chest chambers, each of which is a supply chamber in one position of valve movement andan exhaust chamber in the other position of valve movement.

Another object of my invention is to simplify the entire interior structure of the engine.

Various other features of my invention are more fully set forth in the description of the accompanying drawings, forming a part of this specification, in which Figure 1 is a central vertical section through one of the motors and pumps of my improved duplex motor pump. Fig. 2 is an enlarged central horizontal section of the motor valve and cylinders. Fig. 3 is a central horizontal section of the motor pistons and cylinders. Fig. 4 is a sectional elevation taken on line .r, cc, Fig.

- 1. Fig. 5 is a top plan view of the motor chest. Fig. 6 is a top plan view of the distributing chest. Fig. 7 is a bottom plan view of the distributing chest. Fig. 8

is a central horizontal section through the distributing chest. Fig. 9 is a bottom plan view of the valve chest. Fig. 10 is a section on line 111, w, Fig. 1. Fig. 11 is a section on line 21, '0, Fig. 1.. Fig. 12 is a section on line y, y, Fig. 1. Fig. 13 is a section on line 2, 2, Fig. 1. Fig. 14 is a section on line a, a, Fig. 1. Fig. 15 is a central horizontal section through the valve chest.

I have shown the engine or motor operating a direct acting pump. One pump is connected to each piston rod. It is obvious that the motive power of the engine may be used for various driving purposes, in which a duplex can be conveniently employed.

1 represents the base upon which the engine and pump 2 are mounted. This base is of the usual dish 5, 6, respectively.

12, 13, represent stuffing box nuts.

14, 15, represent the outside cylinder heads preferably screw threaded to the motor chest for access to the interior.

The pistons are preferably provided with suitable packing.

The construction above described is of well-known form in so far as the operating parts are concerned. The motor and valve chests are of such construction as to embody the features of my' invention, and they are provided with inlet and exhaust ports, hereinafter to be described.

16 represents adistributing chest provided with a series of ports and passages, to be hereinafter described, said chest is secured between the valve and motor chests with its ports communicating respectively with the ports of said chests.

17 represents the valve chest adapted to be secured upon the distributing chest 16, which valve chest is provided with a series of ports and passages, to be hereinafter more fully described.

18, 19, represent the valve cylinders within the valve chest.

20, 21, represent duplex valves actuated by valve rods 22, 23, respectively, the details of the valve construction being later discussed.

24, 25, represent valve rod stufling box nuts and 26, 27, represent valve caps screw threaded to the valve chest for gaining access to the interior of said valve chest.

The valve pistons are constructed as follows, and in this description I will only describe one, the other being a duplicate. 28 represents a sleeve adapted to slide upon its valve rod 22 or 23, said sleeve being provided with flanges 29, 30, forming seats for the packing 31, 32. 33, 34, represent knurls screw threaded upon the sleeves 21 for holding the packing in position.

The free end of the valve rod is screw threaded and provided with a nut 35, and as will be seen from the drawing the nut is in such adjusted position as to provide a determined amount of lost motion in valve movement at each limit of valve reciprocation, thereby allowing the various ports controlled by the valve to remain in their open or closed position as the case may be for a period of time during the engine piston movements. 7

It is one of the objects of my invention to employ a duplex motor having a right and a left hand piston and slide valve, the right hand piston rod being directly connected to the right hand valve rod, and vice versa. To effect this result I employ a member (i. e. distributing chest 16) intermediate the valve and motor chests, provided with ports communicating with the ports of the valve and motor chests, and having cross passages so arranged that the reciprocation of the right hand valve will operate the left hand piston, and vice versa. As a result of my organization, I need only four connecting passages between the valve and motor chests, and this result I accomplish chiefly through the use of the distributing chest between the other two chests.

To better understand the invention, I will forecast the operation just sufficiently to form a synopsis or diagrammatic idea of the flow of the fluid. Assume for the purpose of preserving relative positions that that end of the engine lacing the pump is the front end, (see Fig. 1.), and that as you face the front end of the engine the valve 20 and the piston 5, (see Figs. 2 and 3), will be the right hand valve and piston, The fluid directed by the right hand valve 20 will cut through the distributing chest and come into the front of the left hand piston 6, and when piston 6 is reversed the fluid will be exhausted through this same channel. At the same time the fluid is being directed by valve 20 to the front of piston 6, the fluid will be directed by the left hand valve 21 in a channel passing substantially endwise across and through the distributing chest to the front of right hand piston 5, and when piston 5 is reversed the fluid in front of it will be exhausted through this same channel. Thus we see that the Water is simultaneously directed by valves 20, 21, through the distributing chest to the front of the piston G and to the front of the piston 5. As the valves are shifted, the fluid will be directed by right hand valve 20, through the distributing chest and admitted to the rear of left hand piston 6, and exhausted through the same channel when piston 6 is reversed, and at the same time the left hand valve 21 will direct the fluid flow endwise across and through the distributing chest and admit the fluid to the rear of the piston 5, and the fluid will be exhausted through the same channel when the piston is reversed. Thus it will be seen that the supply passage for driving the piston in one direction becomes the exhaust passage when that particular piston is reversed, and that as the two pistons have to be driven in four directions, by my organization I am enabled to make four passages operate the motor, and at the same time make a simple direct mechanical connection between the right hand valve and piston rods, and a like connection between the left hand valve and piston rods.

Another feature of my invention of considerable practical value in the manufacture is that the three chests, t'. c. the valve, motor and distributing chest, may be separately cast. This greatly simplifies the casting proposition, the structural features of the machine, and the matter 'of assembling. But the separateness of these three chests is only to be considered as a limiting feature where distinctly claimed. These are features of great advantage in motors of this class generally antomatically operated for pumping, and largely used by unskilled persons in residences and the like, the engine being driven by water power connected to a city main for pumping water from a cistern through the service pipes of the house. Therefore it will be readily seen that simplicity of mechanical organization is highly desirable.

I obtain my cross piston control through the arrangement of ports and passages, of which the following is a description1-36 represents an inlet orifice, common to both valves, leading to the middle chamber 37 of the valve chest 17, (see Figs. 2 and 12). Valve cylinder 18 is provided with annular orifices a opening into chamber 37. To drive left piston 6 rearward, or to the position in which it is shown in Fig. 3, the right hand valve 20 must be in the position shown in Fig. 2. a represents an annular series of orifices in the middle of the cylinder 18 forming at all times a communication between supply chamber 37 and valve chamber 20. (1 represents a second series of orifices in cylinder 18 leading into the chamber a formed between the said cylinder and valve chest. a (see Fig 13) represents a port at the base of the valve chest registering with the vertical passage a (see Figs. 8 and 13) in distributing chest 17. a (see Fig. 5) represents a cross passage formed in the motor chest 4-, provided with a port a leading downward to the chamber a (see Figs. 3 and 5) at the front end of cylinder 9. The fluid will be directed by valve 20 in the position shown in Fig. 2, from supply chamber 37, through orifices a into cylin der 18, out through orifices a into chamber a'-,thence through port a into passages a a through port a, into chamber a and from thence into the front end of cylinder 9, driving piston 6 rearward. To exhaust the fluid from in front of piston 6 when this piston is reversed the fluid flows back through the open channel just described until it arrives again in the chamber a-, but by this time valve 20 has shifted to the reverse position fromthat shown in Fig. 2, and the fluid flows from chamber a through orifices a into the open rear end of cylinder 18, and thence into the chamber 41 at the rear of the valve chest (see Fig. 2). From chamber 41 the fluid escapes through ports 0, 0, leading downward through the distributing chest into the chamber 39 formed in the motor chest, and out through final exhaust port 40 (see Fig. 12).

Piston 6 is driven forward as followsz b represents annular orifices in valve chamber 18 leading into chamber 1) formed in valve chest-17. Chamber 1) has outlet port I) (see Figs. 9 and 11) leading into cross passage b in distributing chest 16 (see Fig. 8). Gross passage b has a port I) (see Figs. 6, 7, and 8), opening into motor chest passage b (see Fig. 5) which passage b leads into chamber b at the rear end of cylinder 9 (see Fig. 3). Thus when valve 20 is in its forward position, or the reverse position from that shown in Fig. 2, the fluid flows from supply chamber 37 through orifices a into cylinder 18, out through orifices 1) into chamber 1), thence through port b into passage b through port 1) into passage b thence -into chamber 1) at the rear end of the motor chest (see Figs. 1 and 3), and thence into the rear end of cylinder 9 driving piston 6 forward. When piston 6 is reversed the fluid escapes by reversing its flow through the passage just described until it arrives again in the chamber b, when the valve 20 will be in position shown in Fig. 2. The fluid will then flow from chamber 1) through orifices 11 into the open front end of cylinder 18 out into the chamber 38 at the front of the valve chest. From chamber 38 the fluid will enter through ports (I, d, the vertical passages cl, (Z in the distributing chest 17, (see Fig. 10), thence through ports (F, d, into the exhaust chamber 39 in the motor chest which chamber receives the exhaust fluid from both ends of the valve chest.

To drive right hand piston 5 rearward, or from the position in which it is shown in Fig. 3, the left hand valve 21 is actuated to direct the fluid through the following instrumentalities:Oylinder 19 has a series of orifices h communicating with supply chamber 37. h represents a second series of orifices leading from cylinder 19 into a chamber it formed in the valve chest. Chamber it has a port h leading into passage h in the distributingchest 16 which passage has a port it opening into passage h leading into chamber h of the motor chest in front of cylinder 8. Thus when valve 21 is in the position shown in Fig. 2 the fluid will enter from supply chamber 37 through orifices it into cylinder 19, thence out through orifices it into chamber h thence through port h, passage 7L5, port h, and passage h into chamber it and thence into the front of the cylinder 8, driving piston 5 rearward (see Figs. 2, 3 & 5 to 15).

When piston 5 is reversed, or driven forward, the fluid flows back through the channel just described, until it arrives at the initial-chamber h, but valve 21 having been shifted rearward the fluid flows from chamber it through orifices it? into the open end of cylinder 19, thence into the valve chest chamber 38, from which it escapes, as before described, into the common motor chest exhaust chamber 39 and from thence through port 10 out of the chest.

To drive right hand piston 5 forward, or to drive it to the position shown in Fig. 3, the valve 21 must be in the reverse position from that shown in Fig'. 2. 1c represents annular orifices in the rear end of cylinder 19 communicating with chamber 7c. Chamber is has a port It) opening into the distributing chest cross passage k, thence through ports 1:, k into the chamber of the motor chest at the rear end of cylinder 8. Thus when valve 21 is in the reverse position from that shown in Fig. 2, the fluid from the supply chambcr 37 flows through the orifices it into the cylinder 19, thence out through orifices it into chamber 70, thence through port 16-, cross passage k, ports k*, 10", into chamber k, and thence into the rear end of cylinder 8, driving piston 5 forward. When piston 5 is reversed or driven rearward, the flow of the fluid is reversed through the passage, just described, until it arrives into the initial chamber It, from whence it flows through orifices is into the open rear end of cylinder 19,

thence into the valve chest chamber 41, and thence out through the ports 0, a, into the common exhaust chamber 39, as before described.

I have now described in detail the four passages formed by the shifting valves through the valve chest, distributing chest and motor chest, and shown how the energizing fluid is reversed alternately through each of the four passages in supplying and exhausting. From this detailed description it will be noted that the valve chest chamber 0 acts as a supply chamber when valve 20 is in its rear position (shown in Fig. 2), and as an exhaust chamber when valve 20 is in its forward position. In like manner valve chest chamber b is the supply chamber when valve 20 is in its forward position and the exhaust chamber when valve 20 is in its rearward position, (shown in Fig. 2). In the left hand valve in like manner valve chest chamber k is the supply chamber when valve 21 is in its re rward position and it becomes the exhaust chamber when valve 21 is in the forward position, shown in Fig. 2. So also valve chest chamber it is the supply chamber when valve 21 is in the forward position shown in Fig. 2, and is the exhaust chamber when valve 21 is in the rearward position.

Having fully described the motor piston control, I will now describe the means employed for operating the valves 20, 21.

42, 43, represent actuating bars fixed to move with the piston rods 11, 10, respectively, (see Fig. 4-), to which they are secured, they project downwardly and are held in vertical alinement by the guides 44, 45, formed integral with the base 1. 46 represents a pin fixed to the bar 12. 47 represents a lever pivotally supported upon a shaft 18, fixed within a sleeve 19 of a bracket arm 50, around or cast integral with the chest 16 and projected forward. One end of the lever 17 is provided with a slot 51., (see Fig. 1), through which the pin 46 projects, the opposite end of lever 47 being forked and pivotally connected to the valve rod 23. Thus a forward movement of the piston rod 11 will cause a backward movement of the valve rod 23 and vice versa. The piston rod 10 is similarly connected with the valve rod 22. 53 represents a pin,fixed to the bar 43 and riding in a slot in the lever 54 pivotally supported upon the shaft 18. 55 represents a connecting link having a pivotal engagement with lever 54 and valve rod 22, for actuating the valve 20. Thus it will be seen that the drive of each piston in each direction is effected by the energizing fluid of initial pressure. The shifting of the valve chamber 20 places chamber a into communication with chamber 37 for supplying to one end of piston 6 and into communication with exhaust port 0 for exhausting, and in a like manner chamber 5 is placed in communication with chamber 37 for supplying and with port cl for exhausting. In this manner valve 21 alternately connects and disconnects chambers 37, If, k, k, and alternately connects and disconnects chamber h, with exhaust d and chamber is with exhaust c. By this arn ngemcnt I am enabled to operate the motor with two cross passages only from the right valve to the left piston, and two cross passages from the left valve to the right piston.

The result of this entire organization is a very simple and efiicient motor with a minimum number of ports and passages with the fewest possible structural parts and simple direct connections between the piston and valve rods.

If the chests were integrally cast the intermediate distributing chest or its equivalent would be that section of the structure between the valve and piston mechanisms containing the ports and crossing passages before described.

Certain features disclosed in this application are not claimed herein, but are claimed in my copending application Serial No.'364,7l8, filed March 26, 1907.

Having described my invention, I claim 1. In a duplex fluid motor, a vali e and motor chest having both valve chests constructed and arranged to receive fluid at initial prcssurepand having, therein a right and left hand piston slide valve and piston mechanism,

fluid supply and exhaust ports, a direct valve-shifting connection between the right hand valve and piston rods, and like connection between the left hand valve and piston rods, there being ports and passages between the right hand valve cylinder and the left hand piston cylinder, and vice versa, whereby, as the valves are shifted the energizing fluid of initial pressure is alternately directed from the right valve cylinder to opposite sides of the left piston and vice versa.

2. In a duplex fluid motor, a valve and motor chest, an intermediate distributing chest, a right and left hand slide valve and piston mechanism, fluid supply and exhaust ports, a direct valve-shifting connection between the right hand valve and piston rods, and a like connection between the left hand valve and piston rods, the said chests having ports and crossing passages controlled by the shifting valves, whereby, the energizing fluid of initial pressure is alternately directed from the right valve cylinder to opposite sides of the left piston and vice versa.

In a duplex fluid motor, a valve chest, a motor chest, and an intermediate distributing chest, said chests being separately formed and secured together, a right and left hand slide valve and piston mechanism, fluid supply and exhaust ports, a direct valve-shifting connection between the right hand valve and piston rods, and a like connection between the left hand valve and piston rods, the said chests having ports and crossing passages controlled by the shifting valves, whereby, the energizing fluid of initial pressure is alternately directed from the right valve cylinder to opposite sides of the left piston and vice versa.

4. In a duplex fluid motor, a valve and motor chest, an intermediate distributing chest, a right and left hand slide valve and piston mechanism, fluid supply and exhaust ports, a direct valve-shifting connection between the right hand valve and piston rods, and a like connection between the left hand valve and piston rods, the said chests having ports and crossing passages controlled by the valve chest when said piston is reversed, there being a third passage controlled by the shifting of the left valve,

connecting the left valve with one end of the right piston cylinder through which the fluid is supplied and exhausted, and a fourth passage from said left valve to the other side of said right valve piston, through which the fluid is supplied and exhausted, and exhaust'chambers taking the fluid from the opposite ends of said valves.

5. In a duplex fluid motor of the reciprocating slidevalve type, a valve and motor chest having both valve chests constructed and arranged to receive the energizing fluid at initial pressure, an intermediate distributing chest, :1 right and left hand piston slide valve and piston mechanism, fluid supply and exhaust ports, a direct valveshifting connection between the right hand valve and pisten reds, and a like connection between the left hand valve and piston rods, there being two passages through said chests connecting the right valve with the left piston and two passages connecting the left valve with the right piston, said passages being controlled by the shifting valves, whereby, the fluid at initial pressure is supplied from said valve chests through each passage to drive its respective piston in a given direction and exhausted through the same passage when the piston is reversed, and means for conducting away the exhaust.

G. In aduplex fluid motor, a valve and motor chest, with right and left hand valve and piston mechanisms, fluid supply and exhaust ports, valve-shifting connections between the right hand valve and piston rods and between the left hand valve and piston rods, there being an intermediate fluid distributing chest section having ports and crossing passages controlled by the shifting valves, whereby, the energizing fluid of initial pressure is supplied alternately from the right valve to opposite sides of the left piston, and vice versa, the exhausts flowing back through their respective supply passages when the pistons are reversed, there being chambers in the valve chest at opposite ends of each valve, which become alternately the supply and exhaust chambers to and from the crossing passages as the valves are shifted.

In testimony whereof, I have hereunto set my hand.

' HUGH w. KIMEs.

Witnesses OLIVER B. KAISER, LUISE BECK.

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