US654721A

US654721A - Fluid-pressure motor.

Info

Publication number: US654721A
Application number: US73195999A
Authority: US
Inventors: Frederick W Flint
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-09-28
Filing date: 1899-09-28
Publication date: 1900-07-31
Anticipated expiration: 1917-07-31

Description

4 Patented I uly 3|, |900 F. W. FLINT.

FLUID PRESSURE MOTOR (No Model.)

(Application led Sept. 28, 1899.)

4 Sheets-Sheet i 71425120/ ase/, lm

l f -v i y W MMM Patented July 3|, |900.

F. W. FLINT.

FLUID PRESSURE MOTOR.

(Application led Sept. 28, 1899,)

No. 654,72I.

(No Model.)

' Tnt Nonms Pzvsns co, moro-Lamu.. wAsHmGToN, u g.

No. 654,72l. Patented my 31.1900.

- F. w. FLINT.

FLUID PRESSURE MOTOR.

(Application led Sept. 28, 1899.)

(No Model.) 4 Sheets-Sheet 3.

TH: nonms PETERS oo.. PHo'ro'LITHo.. wAsmNa'ron. u, c.

Nb. 654,72l. Patented July al; leon.

F. WJFLINT.

FLUID PRESSURE Il0T0R. l

(Application led Sept. 28, 1899.) (aannam.) 4 shemQ-shef 4,

m: noms Pneus au.. Fumo-urso., mannaro. n, c.

'reiteraron w. FLINT,

" STATE.S,

OF CHCAGO, ILLINOIS.

FLUID-PRESSU RE IVITOR.

.f l SPECIFICATION forming part of Letters patent No. 654,721, date-a July e1, 1900. Application nea september 2s. ls's. saturo. 731,959. wmode.)

To (LZZ whom t may conoci/'its B@ it known that I, FRDERICK W. FLNT,

against which it is exerted may be continu? ous during thev operation'of the apparatus.

To this and other` ends my invention consists in certain novel .featlires, whichI will j now proceed to` describe, and will then particularly point out in lthe claims.

In the accompanying drawings, Figure 1 is a vertical central section, partly in elevation,

of a motor embodying myA invention in one form. Fig.-V 2 -is-a vertical sectional view, partly in elevatiomtaken at right angles to the view shown in Fig. 1 upon the line 2 2 of said figure. Fig. 3 is a plan sectiompartly in elevation, taken on the line 3 3 of Fig. 2. Fig. 4 is a front elevation of the rotating disk. Fig. 5 is a rear elevation of the same. Fig. 6 is a detail view of the controllingvalve. Fig. 7 is a view of the controllingvalve and the packing-rin g cooperative therei with, and. Fig. 8 is a detail sectional view taken on line 8 8 of Fi'g. 2.

In the said drawings, 1 indicates a suitable base in bearings, in which is mountedthe main shaft 2, which may be provided with' the usual l1y-wheel or pulley 3. Upon the shaft 2 is secured a disk 4, which is inclosed with in a suitablecasing or cylinder 5. This casing is preferably constructed in the manner shown, consisting of a cylindrical body 6, closed at the rear by a head 7 and at the front by a head 8. The disk 4 is preferably recessed in its front face to receive the 'cor respondingly rearward-extendin g central portion of the head 8, which latter is thus provided with a' central recessorchamber 9. The disk 4 is thus provided with an annular laterally-extending flange 10, having atfeach of its margins a recess 11, in which is'located a packing-ring 12, supported by rods 13 and heldliny'plac'e by springs 14. This packingring provides a tight joint between the disk 4 and the two sections 6 and 8 of the casing. ,The disk 4 is provided with a laterally-extending vane 15, while the casing is provided ,Wit-han annular chamber 16, in which said ,vane fits and travels.` This annular chamber lies at one side of the disk and is in the form of a groove or circular open passagel way in the inner face of the head 8, near the l margin thereof, opposite theannular portion 10'of the disk 4.

vextends through the annular chamber 1G at `diametrically-opposite points. The inner andoter walls of the chamber are slotted at these points in a radial direction to permit the passage of the abutment, andthe casing is provided with opposite extensions 18, having a recess 19 therein, in which the ends of 1 the abutment may slide. In one side of this y recess 19 is located a packing 2O,l while in the other side there is formed a groove 21, communicating with the chamber 16 and permit ting the escape of the motor fiuid from the recess 19 as the abutment advances into .the same. A suitable packing 22 is also provided at the points where the sliding abutment i passes through the inner wall of the chamber ,16,Y and in order to support the abutment i against the motor-huid pressure and cause it to operate with a minimum of friction it travels between rollers 23, having reduced trun- 17 indicates a reciprocating abutment which .anions 24,which trunnions bear against rollers 25 of larger diameter, these latter in turn hav- ;ing trunnions 26, which are supported by a b'earing-yoke27 ou the casing. The abutment 17 has a motion ofA reciprocation imparted to it from the main shaft 2 in the following manner: The central portion of the abutment lies within the recess 9 in the head 8 and is provided With a transverse yoke or cross-head 28, having a longitudinal slot 29, while the end'of the shaft 2 also extends intosaid recess and is provided with a crank-arm 30, having a crank-pin 31, which fitswithin the slot 29. Rotation of the shaft'2 will obviouslylthus limpart areciprocating motion to the abutment 17. The motor iiuid is admitted to the chamber 16 through either one of two ports or

passages

32 and 33, (indicated in `dotted lines in Figs. 1 and 5 of the drawings,) the said ports being IOO frmed in the body of the diskr and extending from the front to the rear face thereof.

One of said ports opens yinto the chamber 16 .immediately at one side of the vane 15, while v 38 indicates-a packing-ring mounted in a suitable seat in the inner face of the head 7 and covering the several grooves and

segmentalgrooves

34, 35,36, and 37. This packing-.ringis provided with a series of apertures 39, 40, 41, and 42, corresponding in number and location with the grooves Ij ust referred to, the

` aperture 39 communicating with the groove 34, the aperture 40 with the segmental groove 36," the aperture 41' withl the groove 35, and theaperture 42 with the segmental groove 37.

43 indicatesia valve-chest formed vin or attached to the head 7 i'n any suitable manner,

the motor fluid `being supplied thereto from any suitable source through a pipe or, conduit 44. Within said chest is arranged the controlling-va1ve45, which is mounted on an axis 46 and operated by a lever 47 or in any suitable manner. This valve is a rotary valveseated upon the rear or outer face of. the packing-ring 38 and having an aperture 48, which may be either brought oppositethe imperforate body of the packing-ring to cut o the admission of the motor fluidto the machine 'or-which may be caused to register with any one of the apertures in the packingring, so as to cause the motor iiuid to pass into any one of the grooves or segmental grooves in the rearofthe disk 4 and thence either to the port or passage 32 or to the port or passage 33, as the case may be. The mo` tor fluid is exhausted from the chamber 16 Vbye-means of

suitable ports

49 and 50, located at diametrically-opposite points of said casing and each midway between the two points Wherethereciprocating abutment 17 intersects the chamber 15. The port 49 is con-v trolled by an oscillating valve 51, located inl a valve-chamber 52, connected with an ex haust-pipe 53, while the port 50 is similarly controlled byan oscillating valve 54, located ina valve-chamber 55, communicating with an exhaust-pipe 56. The valve 51 is mounted on a rock-shaft 57, supported in suitable bearings on the frame and having at its rear end an arm 58, connected by a rod 59 with an eccentric 60011 the main shaft 2. The valve 54 is similarly mounted on a rock-shaft 61,' having an arm .62 connected bya rodz63'with. a second eccentric64 on the main shaft 2;.; 1

ableto give access toit-he mechanism inclosed in said recess.

The operation of my improved motor will be readily vunderstood from the preceding description.l When the valve 45 is so moved as to bring the opening 48 thereof opposite one of the apertures in the packing-ring 38.- for instance, the aperture 39-thefn1otor iiuid will pass into the annular groove 34 and -tl=rence through the port or passage 32 into the chamber 16. The expansive force of the -motor iiuid acting between the abutment 17 andthe vane 15 will impart movement to this latter, and consequently to the disk 4 and shaft 2. This pressure of the motor uid against the vane-15 will alwaysl take place at every part of the stroke of the engine, for the reason that if lthe abutment is open air-that motor fluid may still act between the other side of the abutment andthe vane. -As the vane approaches one end of the abutment 'said end iswithdrawn out of its Way to permit its passage, this withdrawal commencing Eas soon .as the vane has passedv the exhaustport ahead of that end of the abutment which is to be passed and said-exhaust-port closing before the vane has completely passed it. lt lwill be understood, ofcourse, thatthe oppothe exhaust-port just mentioned closes, so that the motorliuid ahead of the -va'ne is alavoided, while a continuous actuating-,pressure is always maintained-on that side of the VShould itjbe desired to use the motor fluid portion of the stroke is completed/the .valve 45 is moved so as to causeits aperture 48 to register with the aperture 40 in the packingring 38,/whereby the motor `fluid will be adriodv in which the segmentalV slot 36 isin 'com munication with theaperture 40. The engine may be made totravel in the-reverse bring its aperture 48 opposite the aperture 41 of the packing-ring 38, thus admitting motor iiuid to the annular groove`-3r5 -and thence through the port or passage 33 t the chamber 16 on the opposite side of lthe-.vane 15. Cutting 0E may be effected by so shifting the valve 48 as toV admit-,motor'iluid through the aperture 42 into the segmental groove 37.

Y It will be noted that the'motor is simple in construction and that a continuouspressfure of the motor-fluid upon the vane which imtained and loss of power thus avoided. By locating lthe annular Vchamber Vwithin which lthe vane travels at one side'of the diskA I am from the main shaft without the vintervention The recess 9 in the head 8 is preferably i of gearing of any kind and to materially inclosed by a plate 65, which. is readily remov ways `free Vto-escape and back pressure is thus vane on which the admission-port is-located.

expansively by cutting 0E the supply after-amitted to the cylinder only during that ,pe-l

direction by so shifting the valve 451as to parts motion to Vthe main shaft may bemainside of the vane to which it lies nearest' the site exhaust-port opens at the sametime that IOO IIO

.enabled to operate the-abutment directly crease the compactness and simplicity of the structure The roller-bearings for supporting the abutment relieve it of the friction which Would otherwise require an excessive amount of power to operate the same. The

motor may, moreover, be readily controlled,

reversed, and made to operate expansively through the medium of a single controllingvalve.

I do not wish to be understood as limiting myself strictly to the precise details hereinbefore described, and shown in the accompanying drawings, as it is obvious that these may be varied Without departing from the principle of my invention.

I claim- 1. In a motor of the character described, the combination, with a casing having an annular chamber and a reciprocating abutment, of a main shaft, a disk thereon in the casing having a vane to lit and travel in the annular chamber, said disk being provided with a port or passage opening into Vthe annular chamber adjacent to the vane and With a circular groove and segment of a groove with which the other end of said port or passage communicates, and said casing being provided with apertures registering respectively with the groove l and with thesegmental groove, and means for admitting' the motor fluid through either of said apertures, substantially as described.

2. In a motor of the character described, the combination, with a casing having an annular chamber and a reciprocating abutment, of a main shaft, a disk thereon having a vane to lit and travel in the annular chamber, said disk being provided with two inlet ports or passages opening into the annular chamber on opposite sides off the vane and with concentric circular grooves and segmental grooves, with two of'each of which the opposite ends of said ports or passages respectively connect, the casing having a series of apertures each connected With one of said grooves or segmental grooves, and a valve having an opening which may be caused to register With any one of said apertures in the casing, substantially as described.

3. A Huid-pressure motor, comprising a suitable casing having a laterally-arranged annular chamber, a main shaft, a disk thereon having a laterally-extending vane which ts and travels Within the annular chamber, and a reciprocating abutment extending across the face of the disk and intersecting the annular chamber at diametrically-opposite points, substantially as described.

4. A fluid pressure motor, comprising a suitable casing having a laterally-arranged annular chamber, a main shaft, a disk thereon having a laterally-extending vane which fits and travels Within the annular chamber, said casing being centrally recessed, and a reciprocating abutment extending across said recess intersecting the annular chamber at diametrically-opposite points and having its. actuating mechanism located Within the recess of the casing, substantially as described. 5. A fluid pressure motor, comprising a suitable casing having a laterally-arranged annular chamber and a centrally-recessed or inwardly-extending portion, a main shaft, a disk thereon having a central recess to receive the inwardly-extending portion of Vthe casing and a laterally-extending annular portion provided with a laterally-extending vane which fits and travels within the annular chamber, packing-rings located at the outer `margins of said annular portion of the disk,

anda reciprocating abutment intersecting the annular portion at diametrically opposite points and having its actuating mechanism located Within the recess of the casing, substantially as described.

6. A fluid pressure motor, comprising a centrally-recessed casing having a laterallyarranged annular chamber, a main shaft eX- tending from said casing into said chamber and provided with a crank arm and pin therein, a disk secured on the main shaft Within the casing and having a laterally-extending vane Which fits and travels Within the annular chamber, and a reciprocating abutment intersecting the annular chamber at diametrically-opposite points and provided Within the recess of the casing with a slotted crosshead With which the crank-pin of the main shaft engages, substantially as described.

7. Ina motor of the character described, the combination, with a casing having an annular chamber and areciprocating abutment constantly exposed to the pressure of the motor fluid Within the chamber, of rollers on the casing between which said abutment passes and bears, and other rollers carried by the casing and forming bearings for the first- IOO mentioned rollers, substantially as described.