US2081466A - Speed governor - Google Patents

Description

T. TARISIEN SPEED GOVERNOR Original Filed Jan. 8, 1935 276 3533 I\ W i/VJ 6 -il 25 6 8 M 35@ O 3 3 7 27 f O70@ 1| w47 G /O HIIIITW 9 fwwwmi.. 1^ UQU\l zf m in e .f -5 VA d o@ Y i w a w X 2ST.

MayV 25, 1937.

lNvNToR 'HEnPHILE TARISIEN EY ATTORNEY Patented May 25, 1937 UNITED STATES PATENT OFFICEA SPEED GOVERNOR Theophile Tarisien, Livry-Gargan, France, assignor to The Westinghouse Air Brake Company, Wilmcrding, Pa., a corporation of Penn- Sylvania Original application January 8, 1935, Serial No. 809. Divided and this application July 12, 1935, Serial No. 31,044. In France April 11, 1934 14 Claims. (Cl. 137-140) This invention relates to speed governors and which is rigidly secured to the guides 11. A more particularly to a speed controlled valve deslider 36 is disposed between the guides 11 at vice, the present application being a division of one end of the slide valve 33 and is adapted to my pending application, Serial No. 809, filed engage said slide valve for moving same in one January 8, 1935, and now Patent No. 2,061,883 direction on the seat 29. 'Ihe slider is provided issued No 24, 1936 in one end with a bore which receives a pin Ill 'I'he principal object of the invention is to secured in the slide valve through the medium of provide an improved valve device of the above which the slide valve is adapted to be pulled in type. the opposite direction. 'Ihe pin I0 iits loosely 10 In the accompanying drawing; Fig. l is a secin the bore in the slider 36 so as to provide a l0 tional view of a speed controlled valve device Certain anleunl? 0f Play between the slide Valve constructed in accordance with my invention; and slider. and Fig. 2 is an end view of the device shown in A movable segmental member or mass 31, Fig. 1 with the cover removed similar to the rigid member 35, is secured to the 15 As shown in the drawing, the speed controlled Slider 36 for moving the slide valve 33 according l5 valve device comprises a body or casing I3 havto the speed of rotation of the rotor I9. This ing a chamber |1 which is Open at one end, the member 31 is slidably mounted in a space formed open end of Chamber Vg being Closed by a @over between the outer surface of the guides 11 and I5. A pipe |8 is connected to the cover I5 and twO guide plates 32 which are secured to central 90 communicates through a passage |41. with raised portions la 0f the guides ll, engagement 20 1 chamber |1 of said member with said raised portions being A rotor I9 is disposed in the chamber I1 and adapted to limit inward movement of said memis mounted upon one end of a shaft 29 which bel' and thereby the Slide Valve 33. extends through the closed end wallof chamber A compression spring 38 is interposed be- I 1, said shaft being carried by suitable ball tween the slider 36 and an upstanding abutment 25 w3 bearings 2| provided in the casing I6. The shaft 39 secured to the rotor |9 and acts to urge the 2|! extends beyond the exterior surface of the slider 36, the slide valve 33 and the member or casing I6, and anyV suitable driving means such mass 31 to their radially inward position as as a pulley 22 is secured to the outer end of. shOwn in the drawing.

30 said shaft through the medium of which said The SllCle Valve 33 is Provided with a Cavity 40 30 shaft is adapted to be rotated, which in the position of the parts shown in the The inner face of the rotor I9 abuts and sliddlfawin,r is adapted to establish communication ably seals against an annular bearing plate 23 between the ports 28 and 30. The slide valve is inset in the inner end wall of chamber l1, the movable 0n the Seal? 29 |30A anOll'leI DOsitiOn in plate 23 being provided with 9, port 24 wading which the above communication is closed and 35 to a passage 25 which communicates with a pipe DOI 23 is Open t0 Chamber 2B connected to the casing le. The face of the In Operation, with the rOl'IOI at Test, the pipe rotor I9 in contact with the bearing plate 23 is 25 is Genneeted by Way 0f passage 25, PONG 24 in provided with an annular cavity 21 communithe plate 23, annular cavity 21, port 28, cavity 40 eating with a port 29 leading to the opposite l0 in the slide valve 33, ports 30, I3 and I2, and 40 or outer face 29 of the rotor I9 which is also the annular Cavity ll t0 passage 3|. provided with an axial port 30 which communi- When the rotor I9 is rotated by the pulley 22 cates with an outlet passage 3| in the casing through the medium of shaft 20, the action of through an axial bore I3 in the shaft 20, and a centrifugal force on the member 31 opposes the radial bore I2 which opens at one end to the action of spring 38, and when the speed of the 45 bore I3 and at the other end to an annular cavity rotor becomes suciently great, the member 31 which is provided in the casing around said gradually moves outwardly compressing the shaft and which is open to the passage 3|. spring 38. This movement of the member 31 A radially disposed valve seat 29 is provided acting through the slider 36 shifts the slide .0 on the outer face of the rotor |9 between two valve 33 on its seat until by the time a certain 50 spaced parallel guides 11, and a slide valve 33 speed of rotation of rotor I9 is obtained, the is mounted to slide on said seat between said port 28 is uncovered by the end of said slide guides. The slide valve 33 is resiliently held in valve and opened to chamber |1 thereby estabcontact with the seat 29 by means of a spring lishing communication from pipe I8 to pipe 26 34 mounted on a segmental member or mass 35 through said chamber and port, the annular 55 Cri Cil

cavity 21, port 24 and passage 25. It will be noted that in this position of the slide valve 33 the cavity 40 is moved out of registry With port 28.

As the speed of the rotor I9 is decreased, the action of centrifugal force on the member 31 reduces, which permits the spring 38 to gradually return the slide valve 33 to the position in whichn cavity 40 connects passages 28 and 30, and communication between passage 2@ and chamber l1 is closed.

The mass 35 Which is fixed to the rotor i9 isr provided to substantially counteract or neutralize the action of centrifugal force on the movable mass 3l during operation of the governor.

It should be noted that the slide valve 33 occupies a plurality of various positions according to the speed of rotation of the rotor I9 and may, if desired, be arranged to control in said positions a greater or less number of communications, than above described, without exceeding the scope of the invention.

While one illustrative embodiment of the invention has been described in detail, it is not my intention to limitits scope to that embodiment or otherwise than by the scope of the appended claims.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is: Y y

1. A speed governor for controlling flow of fluid under pressure comprising a casing, a rotor carried by and mounted to rotate in said casing and having on one face a slide valve seat and having a fiuid conducting passage opening into said Seat, a valve mounted to slide on said seat for controlling communication to said passage, resilient means acting on said slide valve pressing same into engagement with said seat, a member carried by said rotor and connected to said slide valve and operative by centrifugal force due to rotation of said rotor for shifting said slide valve on its seat, and spring means carried by said rotor acting on said member in opposition to the action of centrifugal force on said member.

2. A speed governor for controlling flow of fluid under pressure comprising arcasing, a rotor carried by and mounted to rotate in said casing and having a slide valve seat and a iluid'conducting passage opening into said seat, a valve mounted to slide on said seat for controlling communication to said passage, means for maintaining said valve in engagement With said seat, .a member carried by and mounted to slide radially on said rotor and operative by centrifugal force due to rotation of said rotor for shifting said slide valve on its seat, and spring means carried by said rotor acting on said member in opposition to the action of centrifugal force on said member.

3. A speed governo-r for controlling flow of fluid under pressure comprising a casing, a rotor carried by and mounted to rotate in said casing and having on one face a flat slide valve seat and having a passage opening into said seat, a valve mounted to slide radially on said seat for con.- trolling communication to said passage, means for maintaining said valve in contact with said seat, a member carried by and mounted to slide radially on said rotor and operative by centrifugal force due to rotation of said rotor for shifting said slide valve onv its seat, and spring means carried by said rotor acting on said member in opposition to the action of centrifugal force on said member.A

4. A speed governor for controlling flow of' -duid under pressure comprising a casing having a chamber, a rotor carried by said casing and disposed in said chamber with one face in rotary sealing engagement with one side Wall of said chamber, said rotor having on the opposite face a slide valve seat and having a passage opening to said seat and communicating With a passage in the side Wall of the casing With 'which said vrotor is in sealing engagement, a valve mounted to slide on said seat for controlling communication through said passage, a member carried by said rotor and operative by centrifugal force according to the speed of rotation of said rotor for shifting said slide `valve on said seat, and spring means carried by said rotor and acting on said member to control movement of said member by centrifugal force.

5. A speed governor comprising a casing, a rotor ^mounted to rotate in said casing, means forl turning said rotor, said rotor having a slide valve seat and .a fluid conducting port opening at said seat, a slide valve mounted to slide on said seat and movable to various positions for controlling communication through vsaid port, means acting to press said slide valve against said seat, a spring carried by said rotor operative to urge said slide valve in one direction on its seat, a member carried by said rotor and movable relatively thereto under the action of centrifugal force to shift said slide valve against said spring to Y a position depending upon the speed of rotation of said rotor, and means connecting said member to said slide valve.

6. A speed governor comprising a casing, a rotor mounted to rotate in `Ysaidv casing, means for turning said rotor, said rotor having a flat slide valve seat and a fluid conducting port opening at said seat, a slide valve mounted on said seat and movable radially to various positions for controlling communication through said port, means for maintaining said slide valve in contact with said seat, a spring carried by said rotor operative to urge said slide valve in one direction on its seat, and a member carried by said rotor and movable relatively thereto under the action of centrifugal force to shift said slide valve against said lspring to a position depending upon the speed of rotation of said rotor.

7. A speed governor comprising a casing, a rotor mounted to rotate in said casing, means for turning said rotor, saidrotor having on one end a slide valve seat and a fluid conducting portV opening at said seat, a slide valve mounted on said seat and movable to various positions for controlling communication through said port, a spring carried by said rotor operative to urge said slide valve inv one direction on its seat, a member carried by said rotor and movable relatively thereto under the .action of centrifugal force to shift said slide valve against said spring to a position depending upon the speed of rotation of said rotor, means connecting said member to said slide valve, and means for moving said slide valve relative to said member into engagement With said seat and for urging said slide valve against said seat.

8. A speed governor comprising a casing, a rotor mounted to rotate in said casing, means for turning said rotor, said rotor having onvone end a fiat slide valve seat Vand a uid conducting port opening at said seat, a slide valve mounted on said seat and movable radially to various positions for controlling communication through said port, means for maintaining said slide valve in contact with said seat, a spring carried bysaid rotor operative to urge said slide valve in one direction on its seat, and a member carried by said rotor and movable relatively thereto under the action of centrifugal force to shift and slide valve against said spring to a position depending upon the speed of rotation of said rotor.

9. A speed governor comprising a casing having a chamber, a rotor disposed in said chamber in sliding contact with a portion of said casing, said casing and rotor having means coasting at the contacting surfaces to establish a uid pressure conduit from a passageway in said casing to a port in said rotor, said rotor having a slide valve 'seat at which said port opens, a slide valve mounted on said seat and operative to control communication through said port, a spring carried by said rotor and acting on said slide valve for urging said slide valve on said seat in one direction, and a member carried by and movable relatively to said rotor under the action of centrifugal force to shift said slide valve in the opposite direction a distance depending upon the speed of rotation of said rotor.

i0. A speed governor comprising a casing having a chamber, a shaft mounted in said casing and extending into said chamber and adapted to be rotated, a rotor disposed in said chamber and secured to said shaft for rotation therewith, one end of said rotor having sliding contact with an end wall of said chamber, said rotor having a passage, said end of said rotor and the contacted end wall of said chamber having coacting means for establishing a fluid conduit from a passageway in said casing to said passage in said rotor throughout full rotative movement of said rotor, said rotor having a slide valve seat at which said passage opens, a slide valve mounted on said seat and movable to various positions for controlling communication through said passage, a spring carried by said rotor and acting on said slide valve for urging said slide valve on said seat in one direction, and a member carried by and movable relative to said rotor under the action of centrifugal force to shift said valve in the opposite direction a distance which varies according to the speed of rotation of said shaft and thereby said rotor.

ll. A speed governor comprising a casing having a chamber, a rotor disposed in said chamber in sliding contact with a portion of said casing, said casing and rotor having means coaoting at the contacting surfaces to establish a fluid pressure conduit from a passageway in said casing to a port in said rotor, said rotor having a slide valve seat at which said port opens, an axial pasdirection a distance Which varies according to the speed of rotation of said shaft and thereby said rotor.

l2. A speed governor comprising a casing having a chamber, a shaft carried by said casing and extending into said chamber, a rotor mounted on said shaft within said chamber and having one face in sliding contact with the casing wall within said chamber and having a slide valve seat, said casing and rotor having means coacting at the sliding contacting surfaces for establishing communication from a passageway in said casing to a passage in said rotor through full turning movement of said rotor relative to said casing, an axial passageway extending through said shaft and open at one end to a passage in said rotor, said passages opening at said valve seat, a slide valve mounted on said seat and movable to various positions on said seat for controlling communication between said passages, and one of said passages and said chamber, a spring for urging said slide valve in one direction on said seat, and a member carried by and movable relatively to said rotor under the action of centrifugal force for moving said slide valve in the opposite direction a distance which varies according to the speed of rotation of said shaft and thereby said rotor.

13. A speed governor comprising a casing, a rotor mounted to rotate in said casing and having an end face and a slide valve seat formed radially on said face, a guide on each side of said valve seat, a slide valve mounted to slide on said seat between said guides, a spring associated with said rotor and acting on said slide valve urging said slide valve to its seat, an actuator disposed between said guides and operatively connected to said slide valve, a spring carried by said rotor and acting on said actuator for urging said slide valve in one direction, a member mounted to slide with one face on said guides and secured to said means and movable relatively to said rotor under the action of centrifugal force for moving said slide valve in the opposite direction distance which varies according to the speed of rotation of said rotor, and means associated with said rotor and extending over the opposite face of said member and coacting with said guides to maintain said actuator and member in operative relation with said slide valve.

14. A speed governor for controlling the ow of fluid under pressure comprising a casing, a rotor carried by and mounted to rotate in said casing and having a slide valve seat, a slide valve mounted on said seat and urged into contact with said seat, a member carried by said rotor and movable by centrifugal force upon rotation of said rotor, a spring acting on said member for` opposing movement thereof by centrifugal force, and means connecting said member to said slide valve for moving said slide valve with said member.

THEOPHILE TARISIEN.

CERTIFICATE OF CORRECTION.

Patent No. 2,081,466. May 25, 1957.

THEOPHILE TARISIEN.

It is hereby Certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 5, first column, line 4, claim 8, for the Word "and" read said; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 27th day of July, A. D. 1937.

Henry Van Arsdale (Seal) Acting Commissioner of Patents.

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