EP0095686A2 - Anlage zur Energieumwandlung eines Fluidums - Google Patents

Anlage zur Energieumwandlung eines Fluidums Download PDF

Info

Publication number
EP0095686A2
EP0095686A2 EP83105051A EP83105051A EP0095686A2 EP 0095686 A2 EP0095686 A2 EP 0095686A2 EP 83105051 A EP83105051 A EP 83105051A EP 83105051 A EP83105051 A EP 83105051A EP 0095686 A2 EP0095686 A2 EP 0095686A2
Authority
EP
European Patent Office
Prior art keywords
pressure energy
fluid pressure
translating device
energy translating
set forth
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.)
Withdrawn
Application number
EP83105051A
Other languages
English (en)
French (fr)
Other versions
EP0095686A3 (de
Inventor
Albin Joseph 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
Vickers Inc
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 Vickers Inc filed Critical Vickers Inc
Publication of EP0095686A2 publication Critical patent/EP0095686A2/de
Publication of EP0095686A3 publication Critical patent/EP0095686A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber

Definitions

  • This invention relates to power transmissions and particularly to fluid pressure energy translating devices such as pumps or motors, especially of the rotary kind.
  • a rotary group In fluid pressure energy translating devices such as pumps or motors, a rotary group is usually provided in a housing that includes an inlet and an outlet and rotation of the rotary group causes the fluid to be pumped out of the device in the case of a pump or causes rotation of the rotor upon applying pressurized fluid to the device in the case of a motor.
  • a form of pump and motor utilized in hydraulic power transmission comprises a rotor having a plurality of spaced radial vanes rotatably therewith and slideable relative thereto in slots provided in the rotor.
  • the rotor and vanes cooperate with the internal contour of a cam to define one or more pumping chambers between the outer periphery of the rotor and the cam contour through which the vanes pass carrying fluid form an inlet port to an outlet port.
  • Cheek plates are associated with each side of the cam and rotor through which the fluid flows to and from the rotor.
  • Such sliding vane motors and pumps are well known as shown in US-A-2,919,651, 2,967,488 and 3,223,044 which are incorporated herein by reference.
  • meshing gears are provided in the housing which function to define chambers that can operate as pumping chambers in the case of a pump or as pressure chambers in the case of a motor.
  • Such an arrangement is shown in US-A-3,778,202 which is incorporated herein by reference.
  • valve faces One common problem to such pressure energy translating devices is the tendency for wear of the surfaces that function as valve faces engaging the rotary group. In extreme instances, the portions defining the valve faces may bind and cause mechanical seizure between the valve face and the rotary group.
  • one of the cheek plates is made axially movable (US-A-2,919,651) or the cheek plates are of sheet material (US-A-3,752,609) which can flex.
  • US-A-2,919,651 or the cheek plates are of sheet material (US-A-3,752,609) which can flex.
  • this makes it necessary to use a pump or motor housing which is more complex than without such cheek plates described above so that the device is much more expensive.
  • a pressure energy translating device which will obviate excessive wear; which will reduce the occurrences of mechanical seizure; which permits the use of less expensive materials; and which achieves the objectives at minimal cost.
  • the housing of the fluid pressure energy translating device includes under cut portions defining grooves spaced from the valving face so that portions of the valving face can move axially with respect to the rotary group to compensate for mechanical, fluid dynamic and thermal effects imposed by the fluid displacement and pressure.
  • the pressure energy translating device comprises a sliding vane pump or motor 10 that includes a housing which has two cover like parts 11, 11a which together contain a cam ring 12 and cheek plates 16, 17.
  • a rotor 13 Within the internal contour 12a of the cam ring 12, a rotor 13 is arranged having a plurality of vanes 14 slideable in slots of the rotor 13. One end of each vane 14 is engaged by springs 14a whereas the other radially outer end engages the internal contour 12a and cooperates therewith.
  • one or more pumping chambers are defined which carry fluid when the vanes 14 pass between valving faces 16a, 17a from an inlet port 18 to an outlet port 19.
  • the rotor 13 is mounted on a shaft 15 journalled in the housing parts 11, 11a and extends through openings 16b, 17b in the cheek plates or members 16, 17 having the valving faces 16a, 17a which engage the rotating group defined by the rotor and vanes.
  • the cheek plates 16, 17 have passages 18a, 18b, 18c and 19a, 19b, 19c, respectively, which connect the ports 18, 19 to the pumping chambers and include axially extending portions 18a, 19a radially - circumferencially extending portions 18b, 19b and circumferencially extending portions 18c,19c.
  • a recess in the form of an annular groove 20 communicating with the opening 16b through at least plate 16 is provided and extends radially parallel to the valving face 16a of the plate 16.
  • a distance 16d between the groove 20 and the radially-circumferencially extending portions 18b of the passages which is small enough to allow flexing movement of a cheek plate portion 22 arranged between groove 20 and valving face 16a.
  • the recess or groove 20 permits axial adjustment of portion 22 of the cheek plate 16 between the valving face 16a and groove 20 surrounding the shaft opening 16b in the. cheek plate 16 so that portion 22 may move axially relative to the rotary group minimizing wear and mechanical seizure due to mechanical, fluid dynamic and/or thermal effects imposed by the fluid displacement and pressure.
  • the annular recess 20 can be provided in one or both of the cheek plates or members 16, 17.
  • the device comprises a gear pump or motor 25 which includes a front housing 30, a center housing 30a, and a cover 30b in which spaced shafts 26,27 with gears 28,29 thereon operate. Portions of the front housing 30 and a valving plate 37 define valving faces 31, 32 that are engaged by the rotary group comprising the two meshing gears 28, 29.
  • the housing or casing 30, 30a, 30b has an inlet port and an outlet port (not shown) which are connected to the space where the gears 28, 29 mesh.
  • annular recess or groove 33 is provided in front housing 30 surrounding each shaft 26, 27 and is spaced from the valving face 31 by a distance 30d so that a portion 35 of the front housing 30 between the valving face 31 and the recess or groove 33 can flex and is free to axially adjust to the mechanical, fluid dynamics and/or thermal conditions.
  • a separate valve plate 37 is provided as is customary in gear pumps, no relief groove will be required on the side (30b) of the rotary group which is provided with the valve plate 37.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP83105051A 1982-06-01 1983-05-21 Anlage zur Energieumwandlung eines Fluidums Withdrawn EP0095686A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38372382A 1982-06-01 1982-06-01
US383723 1982-06-01

Publications (2)

Publication Number Publication Date
EP0095686A2 true EP0095686A2 (de) 1983-12-07
EP0095686A3 EP0095686A3 (de) 1984-01-11

Family

ID=23514429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105051A Withdrawn EP0095686A3 (de) 1982-06-01 1983-05-21 Anlage zur Energieumwandlung eines Fluidums

Country Status (2)

Country Link
EP (1) EP0095686A3 (de)
JP (1) JPS58220986A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0539188A1 (de) * 1991-10-23 1993-04-28 Vickers Incorporated Hydraulische Drehflügelmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924182A (en) * 1955-08-31 1960-02-09 American Brake Shoe Co Fluid pressure energy translating device
DE1031134B (de) * 1956-09-28 1958-05-29 Sueddeutsche Bremsen A G Zahnradpumpe mit UEberdrucksicherung
US2918873A (en) * 1957-03-27 1959-12-29 Teves Gmbh Alfred Rotary vane pump or motor
US4008002A (en) * 1975-11-07 1977-02-15 Sperry Rand Corporation Vane pump with speed responsive check plate deflection
US4247263A (en) * 1976-12-06 1981-01-27 Chandler Evans Inc. Pump assembly incorporating vane pump and impeller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0539188A1 (de) * 1991-10-23 1993-04-28 Vickers Incorporated Hydraulische Drehflügelmaschine

Also Published As

Publication number Publication date
JPS58220986A (ja) 1983-12-22
EP0095686A3 (de) 1984-01-11

Similar Documents

Publication Publication Date Title
DK166741B1 (da) Roterende hydraulisk maskine med et planetgearstyret ventilsystem
US6422845B1 (en) Rotary hydraulic vane pump with improved undervane porting
US3102494A (en) Rotary vane hydraulic power unit
US3007418A (en) Variable delivery hydraulic pump or motor
DK161986B (da) Hydraulisk rotationsmaskine med to hastigheder
US2720171A (en) Power transmission
EP0028061B1 (de) Zahnradpumpe oder -motor
EP0384335B1 (de) Hydraulische Drehkolbenmaschine
US3547565A (en) Rotary device
US4177025A (en) High-pressure rotary fluid-displacing machine
EP0302728B1 (de) Drehende Ventilplatte
US3762843A (en) Van type rotary hydraulic transducer
US2823615A (en) Pump with pressure loaded bushings
US4316707A (en) Gerotor with valve plate attached to rotor
US4082480A (en) Fluid pressure device and improved Geroler® for use therein
US2967489A (en) Power transmission
US3694114A (en) Fluid flow machine with axially biassed rotor assembly
EP0095686A2 (de) Anlage zur Energieumwandlung eines Fluidums
EP0797002A1 (de) Hydraulische Drehkolben-Verdrängungsmaschinen
CA2078956C (en) Hydraulic machine of the gear type
US3567350A (en) Power transmission
US2988007A (en) Hydraulic transmission
US3884124A (en) Hydraulic device
US3416457A (en) Vane type fluid converter
US3011447A (en) Hydraulic pump or motor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI SE

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840912

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NIEMIEC, ALBIN JOSEPH