GB1235846A - Liquid supply apparatus - Google Patents

Liquid supply apparatus

Info

Publication number
GB1235846A
GB1235846A GB50804/67A GB5080467A GB1235846A GB 1235846 A GB1235846 A GB 1235846A GB 50804/67 A GB50804/67 A GB 50804/67A GB 5080467 A GB5080467 A GB 5080467A GB 1235846 A GB1235846 A GB 1235846A
Authority
GB
United Kingdom
Prior art keywords
spool
throttle
pump
pressure drop
spring
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
GB50804/67A
Inventor
Keith Robinson
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.)
Dowty Fuel Systems Ltd
Original Assignee
Dowty Fuel Systems Ltd
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
Priority to FR172718A priority Critical patent/FR96074E/en
Application filed by Dowty Fuel Systems Ltd filed Critical Dowty Fuel Systems Ltd
Priority to GB50804/67A priority patent/GB1235846A/en
Priority to US773618A priority patent/US3508575A/en
Publication of GB1235846A publication Critical patent/GB1235846A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/26—Control of fuel supply
    • F02C9/263—Control of fuel supply by means of fuel metering valves
    • 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7784—Responsive to change in rate of fluid flow
    • Y10T137/7787—Expansible chamber subject to differential pressures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/85986—Pumped fluid control
    • Y10T137/86002—Fluid pressure responsive
    • Y10T137/86019—Direct response valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures

Abstract

1,235,846. Valves. DOWTY FUEL SYSTEMS Ltd. 14 Oct., 1968 [8 Nov., 1967], No.50804/67. Addition to 1,084,871. Heading F2V. [Also in Division F1] A gas turbine fuel supply system with an operating mode similar to that disclosed in Specification 1,084,871 comprises a pump 11 which delivers to line 30 via port 14 controlled by regulating spool 18, passage 25 and variable throttle 23, 24. Spool 18 responds to the pressure drop across the throttle and is biased to an open position by spring 31 with a force which is a function of the position of the movable throttling plug 24. The spool serves to increase the pressure drop across the throttle as the latter increases in area, thereby rendering the change in flow per unit movement of plug 24 more uniform over the whole range of movement. The spool is continually rotated through gearing 36, 37 to overcome friction. In Fig. 2 (not shown), chamber 33 beneath the spool has restricted communication with the upstream and downstream sides of the throttle so that the spool is only subjected to a proportion of the pressure drop across the throttle. A valve in the pump inlet tends to close at low flow rates and thereby reduces the radial depth of the liquid annulus in the pump in known manner. In Fig. 3 (not shown), a positive displacement pump is used and the spool controls a by-pass line. The spring can be machined from a tubular blank.
GB50804/67A 1967-11-08 1967-11-08 Liquid supply apparatus Expired GB1235846A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR172718A FR96074E (en) 1967-11-08 Device for supplying pressurized liquid, in particular fuel for a gas turbine.
GB50804/67A GB1235846A (en) 1967-11-08 1967-11-08 Liquid supply apparatus
US773618A US3508575A (en) 1967-11-08 1968-11-05 Liquid supply apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50804/67A GB1235846A (en) 1967-11-08 1967-11-08 Liquid supply apparatus

Publications (1)

Publication Number Publication Date
GB1235846A true GB1235846A (en) 1971-06-16

Family

ID=10457433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50804/67A Expired GB1235846A (en) 1967-11-08 1967-11-08 Liquid supply apparatus

Country Status (3)

Country Link
US (1) US3508575A (en)
FR (1) FR96074E (en)
GB (1) GB1235846A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206383B (en) * 2013-04-11 2015-12-09 南京航空航天大学 With the gas heart pump of impeller central ftercompction controlling device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251193A (en) * 1979-09-27 1981-02-17 General Motors Corporation Flow control valve
US4502834A (en) * 1982-03-29 1985-03-05 Jackson Samuel G Apparatus and method of throttling centrifugal pump liquid output
FR2528495B1 (en) * 1982-06-09 1987-01-16 Snecma REGULATION ASSEMBLY WITH FLOW RATE DOSER AND REGULATOR VALVE
US4502501A (en) * 1983-06-14 1985-03-05 S.N.E.C.M.A. Fuel control assembly incorporating an integral pressure drop monitor for use with a gas turbine plant
CN112780621B (en) * 2019-11-04 2023-03-28 信孚产业股份有限公司 Oil return valve group with multi-section throttling control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB958358A (en) * 1959-12-15 1964-05-21 Dowty Fuel Syst Ltd Improved liquid pumping apparatus
US3142259A (en) * 1960-06-15 1964-07-28 Dowty Fuel Syst Ltd Liquid pressure supply system
GB977286A (en) * 1962-03-15 1964-12-02 Dowty Fuel Syst Ltd Improved liquid supply system
GB1078762A (en) * 1964-03-09 1967-08-09 Dowty Fuel Syst Ltd Liquid pumping apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206383B (en) * 2013-04-11 2015-12-09 南京航空航天大学 With the gas heart pump of impeller central ftercompction controlling device

Also Published As

Publication number Publication date
FR96074E (en) 1972-05-19
US3508575A (en) 1970-04-28

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