GB1078762A - Liquid pumping apparatus - Google Patents
Liquid pumping apparatusInfo
- Publication number
- GB1078762A GB1078762A GB9868/64A GB986864A GB1078762A GB 1078762 A GB1078762 A GB 1078762A GB 9868/64 A GB9868/64 A GB 9868/64A GB 986864 A GB986864 A GB 986864A GB 1078762 A GB1078762 A GB 1078762A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- valve
- pressure
- pipe
- delivery
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
-
- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
-
- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
- F02C7/236—Fuel delivery systems comprising two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations of two or more pumps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
1,078,762. Fluid-pressure servomotor systems. DOWTY FUEL SYSTEMS Ltd. Feb. 24, 1965 [March 9, 1964], No.9868/64. Heading G3P. [Also in Division F1] In a pumping apparatus suitable for supplying liquid fuel to the burners of an aircraft gas turbine engine, a centrifugal engine-driven pump 2 receives fuel through a pipe 1 and valve 13 and delivers it to spray nozzles 7 via a positive displacement pump 4 and a flow control valve 38. The pump 4 caters for starting conditions, when the pressure developed by the pump 2 is insufficient for satisfactory fuel atomization by the nozzles 7. Adjustment of a manually operable cam 46 of a flow control device 6 varies the throttling of a port 42 and consequently the pressure difference communicated to opposite sides of a piston 51 via pipes 56, 58. This causes the piston to move and adjust the throttling of a port 64 to control the pressure communicated through pipe 66 to one side of a controlling piston 15 for the valve 13. The valve 13 controls the rate of flow such that the liquid within the pump forms an annulus whose radial depth controls the pump delivery pressure. The device 6 may be additionally responsive to parameters such as maximum speed and air to fuel ratio. When the delivery of the pump 4, at a given pump speed, exceeds the regulated delivery of the pump 2, the excess is recirculated to the pump 4 via a pipe 21, throttle valve 22 and non-return valve 23. The recirculation is controlled by adjustably throttling a port 31 by a spool 28 in accordance with the pressure difference across the pump 2 to thereby maintain the pressure difference at a substantially constant value. The spool 28 is geared at 35, 36 to a rotating shaft 37 to avoid static friction and is provided with an axial thrust bearing 33. When the delivery from the pump 2 exceeds that of the pump 4, the excess by-passes the latter through a non-return valve 25 and pipe 24 to the control valve 38 and nozzles 7. The pump 4 may be driven by the engine or by hydraulic or electric means. The drive to the pump 4 may be disconnected when the engine reaches a speed at which the pump 2 develops sufficient pressure. The pump 4 may have variable volumetric capacity in which case the recirculation means would be omitted.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9868/64A GB1078762A (en) | 1964-03-09 | 1964-03-09 | Liquid pumping apparatus |
| US435198A US3309995A (en) | 1964-03-09 | 1965-02-25 | Liquid pumping apparatus |
| DE1476744A DE1476744C3 (en) | 1964-03-09 | 1965-03-03 | Fuel supply device for gas turbine engines |
| FR8429A FR1426587A (en) | 1964-03-09 | 1965-03-09 | Apparatus for pumping liquids, in particular for supplying fuel to a gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9868/64A GB1078762A (en) | 1964-03-09 | 1964-03-09 | Liquid pumping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1078762A true GB1078762A (en) | 1967-08-09 |
Family
ID=9880263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9868/64A Expired GB1078762A (en) | 1964-03-09 | 1964-03-09 | Liquid pumping apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3309995A (en) |
| DE (1) | DE1476744C3 (en) |
| FR (1) | FR1426587A (en) |
| GB (1) | GB1078762A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3427981A (en) * | 1966-01-31 | 1969-02-18 | System Paulin Ab | Gear pump with valve mechanism |
| US3389660A (en) * | 1966-08-15 | 1968-06-25 | Greenlee Bros & Co | Pump with pressure relief |
| GB1194041A (en) * | 1967-01-06 | 1970-06-10 | Dowty Fuel Syst Ltd | Centrifugal Pumping Apparatus |
| US3465679A (en) * | 1967-09-28 | 1969-09-09 | Cav Ltd | Liquid pumping apparatus |
| FR96074E (en) * | 1967-11-08 | 1972-05-19 | Dowty Fuel Syst Ltd | Device for supplying pressurized liquid, in particular fuel for a gas turbine. |
| US3532441A (en) * | 1968-09-04 | 1970-10-06 | Chandler Evans Inc | Pumps with vapor handling element |
| GB1406245A (en) * | 1972-01-29 | 1975-09-17 | Lucas Industries Ltd | Fuel supply arrangement for a gas turbine engine |
| US3987628A (en) * | 1976-03-04 | 1976-10-26 | Deere & Company | Charge pump augmenting device |
| 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 |
| DE102015119098B4 (en) * | 2015-11-06 | 2019-03-21 | Pierburg Gmbh | Control arrangement for a mechanically controllable coolant pump of an internal combustion engine |
| CN110685915A (en) * | 2019-10-24 | 2020-01-14 | 南通冠亚机械科技有限公司 | Turbocharging air inlet valve and working method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3043367A (en) * | 1954-12-27 | 1962-07-10 | Boeing Co | Gas turbine engine fuel supply controls |
-
1964
- 1964-03-09 GB GB9868/64A patent/GB1078762A/en not_active Expired
-
1965
- 1965-02-25 US US435198A patent/US3309995A/en not_active Expired - Lifetime
- 1965-03-03 DE DE1476744A patent/DE1476744C3/en not_active Expired
- 1965-03-09 FR FR8429A patent/FR1426587A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3309995A (en) | 1967-03-21 |
| DE1476744A1 (en) | 1969-07-31 |
| DE1476744C3 (en) | 1975-02-06 |
| DE1476744B2 (en) | 1974-06-20 |
| FR1426587A (en) | 1966-01-28 |
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