US3792936A - Power transmission - Google Patents

Power transmission Download PDF

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Publication number
US3792936A
US3792936A US00317437A US3792936DA US3792936A US 3792936 A US3792936 A US 3792936A US 00317437 A US00317437 A US 00317437A US 3792936D A US3792936D A US 3792936DA US 3792936 A US3792936 A US 3792936A
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US
United States
Prior art keywords
cavities
cheek
cam ring
rotor
cheek plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00317437A
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English (en)
Inventor
R Pettibone
A Niemiec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vickers Inc
Original Assignee
Sperry Rand Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
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Publication of US3792936A publication Critical patent/US3792936A/en
Assigned to SPERRY CORPORATION reassignment SPERRY CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SPERRY RAND CORPORATION
Assigned to VICKERS, INCORPORATED reassignment VICKERS, INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SPERRY CORPORATION A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F01C1/3446—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/08—Axially-movable sealings for working fluids

Definitions

  • ABSTRACT A rotary sliding vane pump or motor has pressure loaded cheek plates on each side of the revolving rotor and vanes.
  • the cam ring has alternate major and minor diameter circular arcs connected by rising and falling ramps along which fluid displacement occurs.
  • End covers and cheek plates of similar configuration enclose the end faces of the cam ring, rotor and vanes.
  • the cheek plates have pressure loading cavities of circular form opposite each ramp. All of the cavities on each end are connected with a terminal in the adjacent end cover and alternate cavities are perforated to provide fluid passages into the working chambers of the device.
  • the intermediate cavities on each cheek plate are blind.
  • the cheek plates are so located that a perforated cavity on one end lies opposite a blind cavity on the other end of the device and the areas of the cavities are chosen to slightly overbalance the pressure forces existing at the interface between the rotor and cheek plates.
  • a rotary sliding vane pump or motor having a body comprising a central cam ring having circular arcs of major and minor diameters alternately spaced around its inner cam surface and connected by ramps along which fluid displacement can occur, the body further comprising end covers containing fluid terminals and passages connecting the terminal of one cover with.
  • FIG. 1 is a dihedral cross section on line l-I of FIG. 2 through a vane pump or motor incorporating a preferred form of the present invention.
  • FIG. 2 is a perspective view of the cam ring, rotor and vanes forming part of the device of FIG. 1.
  • FIG. 3 is a perspective view of a cheek plate forming part of the device of FIG. 1.
  • the device there illustrated may typically be used as a reversible fluid motor having terminals and 12 which, when fluid under pressure is delivered to one or the other, the motor will be driven in one or the other direction.
  • the body of the unit comprises a central cam ring 14, a pair of similar cheek plates 16 and 18, and a pair of similar end covers 20 and 22. These parts are all clamped together by bolts 24 at suitably placed points around the periphery of the end covers.
  • the revolving group of the unit comprises a slotted rotor 26 having an internal spline 28 for the reception of a driven shaft, not shown, and a series of radially slidable vanes 30 which are spring pressed outwardly against the internal cam surface of the cam ring I4.
  • This surface is made up of a plurality of alternately spaced circular arcs, those of major diameter being designated 32 and those of minor diameter being designated 34. These arcs are connected by rising ramps 36 and falling ramps 38. It is as the vanes pass along these ramps that the fluid displacing action of the device occurs, with fluid being taken in along the rising ramps and being exhausted along the falling ramps.
  • rising and falling refer, of corse, to the action when the rotor is revolving clockwise in FIG. 2 and their designation would be reversed upon reversal of rotor rotation.
  • the end coves 20 and 22 are similarly constructed and are provided with cored passages 40 and 42 which connect with the terminals 10 and I2 respectively and open radially inwardly to bores 44 and 46 in the end covers. These bores are closed by sleeves 48 which are sealed to the bore 46 on either side of the cores 40 and 42. Intercepting the cores 40 and 42 are a series of eight machined passages 50 and 52 in each end cover. These passages lie opposite the ramps 36 and 38 and extend inwardly to the inner face of each end cover.
  • cheek plate 16 is there illustrated, and is also representative of the other cheek plate I8, the two being identical.
  • the inner face of the plate I6 is flat except for an O-ring sealing groove 54.
  • the back face is provided with a series of eight circular cavities 56 and 58.
  • the cavities 56 are blind; that is, their bottoms are imperforate, while the cavities 58 have through passages 60 and 62 which form fluid passageways through which fluid passes to and from the working chambers formed by the rotor, the vanes and the cam ring.
  • O-ring seals such as 65 are provided at the periphery of each cavity 56 and 58.
  • the cheek plates I6 and 18 are so positioned when the device is assembled that each imperforate cavity 56 of the cheek plate I6 lies opposite a perforated cavity 58 of the cheek plate 18, as illustrated at the top of FIG. I.
  • the areas of the cavities 56 and 58 are so chosen that their total force will more than equal the total force of the areas at the interface between cheek plate 16 and the revolving group which are subjected to pressure and thus will tend to close the clearance at that interface as the operating pressure rises. Since the two cheek plates are identical as are the end covers, when rotation of the motor is reversed by the application of pressure fluid to the terminal 12, a similar action will take place, causing the cheek plate 18 to tend to seal the running clearance at the interface with the revolving group and the cheek plate.
  • a rotary sliding vane pump or motor having a body comprising a central cam ring having circular arcs of major and minor diameters alternately spaced around its inner cam surface and connected by ramps along which fluid displacement can occur, said body further comprising end covers containing fluid terminals and passages connecting the terminal of one cover with alternately spaced ramps of the cam ring and connecting the terminal of the other cover with the intermediate spaced ramps of the cam ring, a slotted rotor within the cam ring and carrying radially slidable vanes to traverse the cam ring inner surface, cheek plates interposed between each end cover and the rotor and vanes, and
  • means for pressure loading the cheek plates comprising a series of cavities at the interfaces of the cheek plate and end covers, each being peripherally sealed from adjacent cavities, there being one cavity for each ramp, with alternate cavities being perforated to carry fluid through the cheek plate and the other cavities being imperforate, the cheek plates being positioned with their perforate cavities lying opposite the imperforate cavities of the other cheek plate, and passages connecting the imperforate cavities of each cheek plate with its adjacent cover terminal.
  • cheek plates have their outer portions clamped between the end covers and the cam ring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
US00317437A 1972-12-21 1972-12-21 Power transmission Expired - Lifetime US3792936A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31743772A 1972-12-21 1972-12-21

Publications (1)

Publication Number Publication Date
US3792936A true US3792936A (en) 1974-02-19

Family

ID=23233632

Family Applications (1)

Application Number Title Priority Date Filing Date
US00317437A Expired - Lifetime US3792936A (en) 1972-12-21 1972-12-21 Power transmission

Country Status (9)

Country Link
US (1) US3792936A (OSRAM)
JP (1) JPS5235123B2 (OSRAM)
AU (1) AU469331B2 (OSRAM)
CA (1) CA991479A (OSRAM)
FR (1) FR2211968A5 (OSRAM)
GB (1) GB1450716A (OSRAM)
IN (1) IN141408B (OSRAM)
IT (1) IT996265B (OSRAM)
SE (1) SE396984B (OSRAM)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321585A1 (fr) * 1975-08-21 1977-03-18 Applied Power Inc Turbomachine
US4376620A (en) * 1980-09-08 1983-03-15 Westinghouse Electric Corp. Seawater hydraulic vane-type motor
US5702243A (en) * 1996-08-07 1997-12-30 Rhi Joint Venture Hydraulic motor with pressure compensated end plates
US6478559B2 (en) * 2001-01-23 2002-11-12 Visteon Global Technologies, Inc. Balanced vane pump
US20030098072A1 (en) * 2000-02-17 2003-05-29 Zagranski Raymond D. Fuel metering unit
US20040200459A1 (en) * 2003-04-14 2004-10-14 Bennett George L. Constant bypass flow controller for a variable displacement pump
US20050066648A1 (en) * 2003-09-09 2005-03-31 Dalton William H. Multi-mode shutdown system for a fuel metering unit
US20050100447A1 (en) * 2003-11-11 2005-05-12 Desai Mihir C. Flow control system for a gas turbine engine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424212U (OSRAM) * 1977-07-20 1979-02-17
JPS5424213U (OSRAM) * 1977-07-20 1979-02-17
CN111810049A (zh) * 2020-08-04 2020-10-23 西南石油大学 一种容积式定轴旋转井下动力马达

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479962A (en) * 1967-11-22 1969-11-25 Sperry Rand Corp Power transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479962A (en) * 1967-11-22 1969-11-25 Sperry Rand Corp Power transmission

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321585A1 (fr) * 1975-08-21 1977-03-18 Applied Power Inc Turbomachine
US4376620A (en) * 1980-09-08 1983-03-15 Westinghouse Electric Corp. Seawater hydraulic vane-type motor
US5702243A (en) * 1996-08-07 1997-12-30 Rhi Joint Venture Hydraulic motor with pressure compensated end plates
WO1998005864A1 (en) * 1996-08-07 1998-02-12 Rhi Joint Venture Hydraulic motor with pressure compensated end plates
US6623250B2 (en) 2000-02-17 2003-09-23 Goodrich Pump And Engine Control Systems, Inc. Fuel metering unit
US20030098072A1 (en) * 2000-02-17 2003-05-29 Zagranski Raymond D. Fuel metering unit
US6786702B2 (en) 2000-02-17 2004-09-07 Goodrich Pump & Engine Control Systems Fuel metering unit
US6821093B2 (en) 2000-02-17 2004-11-23 Goodrich Pump & Engine Control Systems, Inc. Flow meter
US6478559B2 (en) * 2001-01-23 2002-11-12 Visteon Global Technologies, Inc. Balanced vane pump
US20040200459A1 (en) * 2003-04-14 2004-10-14 Bennett George L. Constant bypass flow controller for a variable displacement pump
US6962485B2 (en) 2003-04-14 2005-11-08 Goodrich Pump And Engine Control Systems, Inc. Constant bypass flow controller for a variable displacement pump
US20050066648A1 (en) * 2003-09-09 2005-03-31 Dalton William H. Multi-mode shutdown system for a fuel metering unit
US6996969B2 (en) 2003-09-09 2006-02-14 Goodrich Pump & Engine Control Systems, Inc. Multi-mode shutdown system for a fuel metering unit
US20050100447A1 (en) * 2003-11-11 2005-05-12 Desai Mihir C. Flow control system for a gas turbine engine

Also Published As

Publication number Publication date
IN141408B (OSRAM) 1977-02-26
DE2349606A1 (de) 1974-07-11
AU469331B2 (en) 1976-02-12
SE396984B (sv) 1977-10-10
JPS4989209A (OSRAM) 1974-08-26
CA991479A (en) 1976-06-22
IT996265B (it) 1975-12-10
GB1450716A (en) 1976-09-29
JPS5235123B2 (OSRAM) 1977-09-07
FR2211968A5 (OSRAM) 1974-07-19
DE2349606B2 (de) 1976-01-15
AU6029273A (en) 1975-03-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SPERRY CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:SPERRY RAND CORPORATION;REEL/FRAME:003794/0122

Effective date: 19790824

AS Assignment

Owner name: VICKERS, INCORPORATED TROY, MI A DE CORP

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE NOVEMBER 2, 1983;ASSIGNOR:SPERRY CORPORATION A DE CORP.;REEL/FRAME:004337/0889

Effective date: 19831102

Owner name: VICKERS, INCORPORATED,MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SPERRY CORPORATION A DE CORP.;REEL/FRAME:004337/0889

Effective date: 19831102