US3895891A - Vane-type machine - Google Patents

Vane-type machine Download PDF

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Publication number
US3895891A
US3895891A US368781A US36878173A US3895891A US 3895891 A US3895891 A US 3895891A US 368781 A US368781 A US 368781A US 36878173 A US36878173 A US 36878173A US 3895891 A US3895891 A US 3895891A
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US
United States
Prior art keywords
vane
pressure
pockets
type machine
counterpressure
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
US368781A
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English (en)
Inventor
Ludwig Budecker
Lothar Kunze
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
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 Deutsche ITT Industries GmbH filed Critical Deutsche ITT Industries GmbH
Application granted granted Critical
Publication of US3895891A publication Critical patent/US3895891A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/08—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation

Definitions

  • This invention relates to a vane-type machine provided with several working chambers which may be accessed independently in any combination in order to control the roataional speed or the torque, respectively, of said working chambers, via a control device,
  • each chamber may be adapted to become a pressurized working chamber.
  • the lateral disc will be subjected to bending stresses, thus causing the gap width between rotor and lateral disc to vary along the circumference of the rotor, the result being leakage losses and excessive wear.
  • each working chamber there is assigned to each working chamber a counterpressure pocket known per se acting on a lateral disc lying opposite the control device, and also in that the counterpressure pockets are provided alternately on both sides of a partition wall located between the lateral disc and the housing of the vane-type machine.
  • the partition wall may be designed as an annular disc containing the counterpressure pockets in its two sides alternately.
  • each working chamber is associated with a counterpressure pocket situated precisely opposite the former.
  • the counterpressure pockets are disposed alternatelyon both sides of a partition wall, it is possible to provide for overlapping of the counterpressure pockets and also to give them the same dimensions as to the associated working chambers in order to obtain perfect pressure balance.
  • FIG. 1 is a vertical section of a vane-type machine the invention, on the line 1-1 in FIG. 2;
  • FIG. 2 is a sectional view of the vane-type machine on the line 2-2 in FIG. 1;
  • FIG. 3 is an axial view of another annular disc according to the invention.
  • the vane-type machine constructed in accordance with the invention comprises a housing 1 with a pressure-medium inlet 2 and a pressure-medium outlet 3.
  • the space created between the rotor 5 and the cam plate 7 is limited on one side by a lateral disc 8 and on the other side by a control device 9.
  • Said control device 9 contains kidney-shaped orifices 10-21 leading to the chamber established by the rotor 5 and the cam plate 7 and enabling the vane-type machine to be supplied by a pressure medium and serving as a pressure-medium exhaust.
  • the vane-type machine is so designed that several orifices l0-2l can be controlled by choice in order to obtain different torques or rotational speeds, respectively. Thus is it possible, for instance, to pressurize three working chambers via the orifices l3, l7 and 21. In this case the orifices 18, 10 and 14 must be connected to the pressure-medium outlet 3.
  • a control device is provided permitting for example also the orifices ll, 15, 19 to be pressurized additionally.
  • the working chambers associated with these orifices have an absorptive capacity which is different from that of the working chambers associated with the openings 13, 17 and 21, whereby another variation of possible rotational speeds would be achieved.
  • the lateral disc 8 has a circular groove 22 on the side turned away from the rotor 5, in which an annular disc 23 is inserted. Both sides of said annular disc 23 accommodate counterpressure pockets illustrated in broken lines in FIG. 1.
  • FIG. 3 shows an annular disc 23 in an axial view.
  • the counterpressure pockets on the side which is turned away from the rotor 5 are assigned the reference numerals 24-29, whereas the counterpressure pockets facing the-rotor are illustrated in. broken lines in the drawing and have the reference numerals -35. Con.- sequently, the rotational speed is only half as high when the workingchambers are of equal size.
  • the counterpressure pockets on both sides of the annular disc 23 are not deep enough to connect'with each other, on the contrary, a partition wall 38 is formed in the annular disc 23. All counterpressure pockets are so spaced on the periphery and of such a size that a counterpressure field corresponding to each workingchamber is associated with each kidney-shaped orifice l02l. To this end, the counterpressure pockets communicate with their respective working chambers via channels; the
  • channels 36 and 37 can be seen in FIG. 2 of the drawmg. 7 v
  • the circular groove 22 is formed in the housing liinstead of in the lateral disc 8 so that the annular disc 23 is then inserted in the circular groove of the housing.
  • a further embodiment of the invention provides for accommodation of the counterpressure pockets alternately in the housing 1 and in the lateral disc 8, with a tin plate serving as a partition wall 38 disposed between thelateral disc 8 and the housing I.
  • the mode of operation of the vane-type machine constructed in accordance with the invention correspondsto that of a conventional vane-type machine. Since each counterpressure pocket communicates, via a connecting channel, with one chamber of the vanetype machine, counterpressure is applied automatically together with th e control action of the vane-type ma- 4 chine.
  • a vanetype machine comprising a housing enclos- 'ing a plurality of working chambers communicating with either a pressuremedium inlet or a pressuremedium outlet, a lateral disc sealing one side of the working chambers, a counter-pressure pocket assigned to each .working chamber to enable equalization of pressure on both sides of the lateral disc, said counterpressure pockets being located alternately on both sides of a .partition wall located between the lateral disc and the housing of the vane-type machine, and meansv alternately containing the counterpressure pockets in its two sides.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Reciprocating Pumps (AREA)
US368781A 1972-06-12 1973-06-11 Vane-type machine Expired - Lifetime US3895891A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2228506A DE2228506C3 (de) 1972-06-12 1972-06-12 Rotationskolbenmaschine

Publications (1)

Publication Number Publication Date
US3895891A true US3895891A (en) 1975-07-22

Family

ID=5847506

Family Applications (1)

Application Number Title Priority Date Filing Date
US368781A Expired - Lifetime US3895891A (en) 1972-06-12 1973-06-11 Vane-type machine

Country Status (4)

Country Link
US (1) US3895891A (enrdf_load_stackoverflow)
JP (1) JPS5411002B2 (enrdf_load_stackoverflow)
DE (1) DE2228506C3 (enrdf_load_stackoverflow)
GB (1) GB1431213A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3145418A1 (de) * 1981-11-16 1983-05-26 Alfred Teves Gmbh, 6000 Frankfurt Fluegelzellen-schaltmotor

Citations (2)

* 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
US3586466A (en) * 1969-12-02 1971-06-22 Albin R Erickson Rotary hydraulic motor

Patent Citations (2)

* 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
US3586466A (en) * 1969-12-02 1971-06-22 Albin R Erickson Rotary hydraulic motor

Also Published As

Publication number Publication date
JPS504437A (enrdf_load_stackoverflow) 1975-01-17
DE2228506C3 (de) 1979-06-28
DE2228506B2 (de) 1978-11-16
DE2228506A1 (de) 1974-01-03
GB1431213A (en) 1976-04-07
JPS5411002B2 (enrdf_load_stackoverflow) 1979-05-11

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