GB1536349A - Rotary sliding-vane-type double-lobe hydraulic pumps - Google Patents

Rotary sliding-vane-type double-lobe hydraulic pumps

Info

Publication number
GB1536349A
GB1536349A GB1173476A GB1173476A GB1536349A GB 1536349 A GB1536349 A GB 1536349A GB 1173476 A GB1173476 A GB 1173476A GB 1173476 A GB1173476 A GB 1173476A GB 1536349 A GB1536349 A GB 1536349A
Authority
GB
United Kingdom
Prior art keywords
pressure
pair
line
valve
via line
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
GB1173476A
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.)
Sundstrand Corp
Original Assignee
Sundstrand 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 Sundstrand Corp filed Critical Sundstrand Corp
Publication of GB1536349A publication Critical patent/GB1536349A/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
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • 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
    • F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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

Abstract

1536349 Rotary positive displacement hydraulic pumps; reciprocating pumps; gas turbine fuel control systems SUNDSTRAND CORP 23 March 1976 [30 April 1975] 11734/76 Headings F1A F1F and F1G In a radial sliding vane pump, a cam ring 161 defines two part-elliptical lobes 162, 163 of differing profiles. As shown, the vanes 16 also act as reciprocating pistons, a pair of axially pressure loaded valve plates (21, 22) Fig. 2 (not shown) defining inlet ports 70, 71, 72, 73 and outlet ports 85, 86, 90, 91, thus providing four volumetrically different outputs. In the arrangement of Fig. 3 which may feed fuel to an aircraft jet engine, fuel from a boost pump 68 is fed to a pair of inlets 65, 66, one pair of outlet ports 85, 86 delivering into line 80 via line 81, the other pair 90, 91 delivering into line 80 via line 82 and a check valve 96. Each discharge has a spring and pressure loaded by-pass valve 100, 105, the latter having a weaker spring than the former. The pressure loading on the valves is controlled by a valve 120 having a spool movable by a diaphragm responsive to the pressure differential across a throttling device in a fuel control. As the diaphragm moves the pressure in lines 125, 126, 127 is varied by the position of the land 124, having output pressure via line 121a on one side and drain pressure on the other. A relief valve 112 connects line 80 to inlet 66.
GB1173476A 1975-04-30 1976-03-23 Rotary sliding-vane-type double-lobe hydraulic pumps Expired GB1536349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57336275A 1975-04-30 1975-04-30

Publications (1)

Publication Number Publication Date
GB1536349A true GB1536349A (en) 1978-12-20

Family

ID=24291678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1173476A Expired GB1536349A (en) 1975-04-30 1976-03-23 Rotary sliding-vane-type double-lobe hydraulic pumps

Country Status (4)

Country Link
JP (1) JPS51130904A (en)
DE (1) DE2619006A1 (en)
FR (1) FR2309739A1 (en)
GB (1) GB1536349A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834317A1 (en) * 2001-12-27 2003-07-04 Luk Fahrzeug Hydraulik PUMP
CN107035686A (en) * 2015-12-25 2017-08-11 株式会社昭和 Vane pump apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191103688A (en) * 1911-02-14 1911-11-02 Oliver Danson North Improvements in Rotary Pumps, Engines and the like.
FR1108743A (en) * 1953-06-22 1956-01-17 Denison Eng Co Hydraulic pressure generator forming a variable volume pump
FR1181481A (en) * 1956-08-13 1959-06-16 Hobourn Eaton Mfg Co Ltd Fluid pumping system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834317A1 (en) * 2001-12-27 2003-07-04 Luk Fahrzeug Hydraulik PUMP
WO2003056180A1 (en) * 2001-12-27 2003-07-10 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Pump
CN107035686A (en) * 2015-12-25 2017-08-11 株式会社昭和 Vane pump apparatus
US10655624B2 (en) 2015-12-25 2020-05-19 Showa Corporation Vane pump device for controlling deviation of a force applied to the vanes
CN107035686B (en) * 2015-12-25 2020-07-24 株式会社昭和 Vane pump device

Also Published As

Publication number Publication date
FR2309739A1 (en) 1976-11-26
DE2619006A1 (en) 1976-11-11
JPS51130904A (en) 1976-11-13
FR2309739B1 (en) 1981-05-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee