GB735099A - Variable displacement pump with direct control in response to discharge pressure - Google Patents

Variable displacement pump with direct control in response to discharge pressure

Info

Publication number
GB735099A
GB735099A GB33600/53A GB3360053A GB735099A GB 735099 A GB735099 A GB 735099A GB 33600/53 A GB33600/53 A GB 33600/53A GB 3360053 A GB3360053 A GB 3360053A GB 735099 A GB735099 A GB 735099A
Authority
GB
United Kingdom
Prior art keywords
sleeve
shaft
stop
eccentricity
passage
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
GB33600/53A
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.)
New York Air Brake LLC
Original Assignee
New York Air Brake LLC
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 New York Air Brake LLC filed Critical New York Air Brake LLC
Publication of GB735099A publication Critical patent/GB735099A/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
    • F04C14/22—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
    • F04C14/223—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 using a movable cam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062—Details, component parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

735,099. Rotary pumps. NEW YORK AIR BRAKE CO. Dec. 3, 1953 [March 2, 1953], No. 33600/53. Class 110 (2). [Also in Group XXIX] A variable displacement pump has a shaft 14 on which is mounted a rotor 17 having slidable radial vanes 29 which contact at their ends a sleeve 21 which is eccentric to the rotor, the eccentricity being variable according to the position of the sleeve 21 in the bore of the casing 7, which is bored coaxially with the shaft 14 to a chosen diameter and is also bored to the same diameter on a parallel axis slightly eccentric to the shaft. An adjustable stop 27 determines the maximum eccentricity of the sleeve 21 and an adjustable stop 28 determines the minimum eccentricity. A spring 25 urges the sleeve towards the stop 28 while a piston 26 urges the sleeve towards the stop 27, the chamber 24 being connected by a pipe to the delivery pipe. The casing 7 is closed at each end by plates 6, 7 and a connection plate 9. Arcuate grooves 32, 36 form the inlet and outlet ports. The bottoms of the vane slots on the suction side are connected by an arcuate groove 42 and a passage 41 to the suction passage 34. An arcuate groove 44 is similarly connected to the discharge passage 38. Grooves 33, 37 balance the axial thrust due to the suction and discharge ports respectively. Resilient packing-rings 22 seal the sleeve 21.
GB33600/53A 1953-03-02 1953-12-03 Variable displacement pump with direct control in response to discharge pressure Expired GB735099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US735099XA 1953-03-02 1953-03-02

Publications (1)

Publication Number Publication Date
GB735099A true GB735099A (en) 1955-08-10

Family

ID=22114112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33600/53A Expired GB735099A (en) 1953-03-02 1953-12-03 Variable displacement pump with direct control in response to discharge pressure

Country Status (1)

Country Link
GB (1) GB735099A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518028A (en) * 1968-01-26 1970-06-30 Trw Inc Power reduction of liquid ring pumps
GB2126657A (en) * 1982-09-04 1984-03-28 Teves Gmbh Alfred Hydrostatic drive
GB2129497A (en) * 1982-11-02 1984-05-16 Teves Gmbh Alfred Adjustable vane-type pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518028A (en) * 1968-01-26 1970-06-30 Trw Inc Power reduction of liquid ring pumps
GB2126657A (en) * 1982-09-04 1984-03-28 Teves Gmbh Alfred Hydrostatic drive
GB2129497A (en) * 1982-11-02 1984-05-16 Teves Gmbh Alfred Adjustable vane-type pump

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