GB690528A - Improvements in or relating to hydraulic drives - Google Patents

Improvements in or relating to hydraulic drives

Info

Publication number
GB690528A
GB690528A GB12594/51A GB1259451A GB690528A GB 690528 A GB690528 A GB 690528A GB 12594/51 A GB12594/51 A GB 12594/51A GB 1259451 A GB1259451 A GB 1259451A GB 690528 A GB690528 A GB 690528A
Authority
GB
United Kingdom
Prior art keywords
pump
ring
rotor
bush
toothed
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
Application number
GB12594/51A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB690528A publication Critical patent/GB690528A/en
Expired legal-status Critical Current

Links

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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction
    • 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
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

690,528. Rotary pumps and engines. KLATTE, T. (trading as KLATTE, T. [Firm of]). May 29, 1951 [Oct. 15, 1948], No. 12594/51. Class 110(ii) [Also in Group XXIX] A pump of the n and n+ 1 lobe type has an outer ring 8, driven by the toothed rotor 5 which is mounted in a bush 10 in which the ring runs with a large clearance to allow free rotation. To vary the pump capacity, the bush 10, which is eccentric to the rotor, is rotated by means of an external handle to vary the amount of liquid flowing back from a delivery port 14 to a suction port 13 between the toothed rotors. When the bush 10 is rotated the centre of the ring 8 moves along an arc of a circle. With 90 degrees rotation of the bush, no liquid is pumped; for 180 degrees rotation the liquid flow through the pump is reversed. Fig. 5 shows another method of regulating the pump capacity by means of axial displacement of the toothed rotor 17 relatively to the outer toothed ring 28. This is effected through a coupling 18 under control of a lever 19. The two ends of the rotor 17 are sealed by rings 20, 21. Sealing is provided by means of rubber packing 27 and an end ring 21. Inlet and outlet ports connect with grooves 22, 23 through the sealing ring 20 by way of bores 24, 25. The ring 20 rotates in a housing 26. Chambers 29, 30, are connected to the suction side of the pump and a space 31 to the delivery side to balance axial loads on the rotor. In a hydraulic system the pump supplies an engine of a similar type, the pump delivery having a bypass valve which opens under excessive delivery pressure.
GB12594/51A 1948-10-15 1951-05-29 Improvements in or relating to hydraulic drives Expired GB690528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE690528X 1948-10-15

Publications (1)

Publication Number Publication Date
GB690528A true GB690528A (en) 1953-04-22

Family

ID=6599714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12594/51A Expired GB690528A (en) 1948-10-15 1951-05-29 Improvements in or relating to hydraulic drives

Country Status (1)

Country Link
GB (1) GB690528A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115559A1 (en) * 1983-01-21 1984-08-15 Victor Joseph Specht Variable capacity gear pump
GB2313411A (en) * 1996-05-25 1997-11-26 Concentric Pumps Ltd Hydrostatic drive with variable output pump
DE10207350C2 (en) * 2001-02-23 2003-05-15 Joma Hydromechanic Gmbh Volume flow variable rotor pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115559A1 (en) * 1983-01-21 1984-08-15 Victor Joseph Specht Variable capacity gear pump
GB2313411A (en) * 1996-05-25 1997-11-26 Concentric Pumps Ltd Hydrostatic drive with variable output pump
EP0811787A1 (en) * 1996-05-25 1997-12-10 Concentric Pumps Limited Hydrostatic transmission
GB2313411B (en) * 1996-05-25 1999-10-13 Concentric Pumps Ltd Improvements in drive systems
DE10207350C2 (en) * 2001-02-23 2003-05-15 Joma Hydromechanic Gmbh Volume flow variable rotor pump
DE10207348C2 (en) * 2001-02-23 2003-06-26 Joma Hydromechanic Gmbh Volume flow variable rotor pump
DE10207350C5 (en) * 2001-02-23 2006-11-30 Joma-Hydromechanic Gmbh Flow variable rotor pump

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