GB803836A - Improvements in and relating to driving devices for aircraft fuel pumps connected in parallel to a common delivery conduit - Google Patents
Improvements in and relating to driving devices for aircraft fuel pumps connected in parallel to a common delivery conduitInfo
- Publication number
- GB803836A GB803836A GB23824/56A GB2382456A GB803836A GB 803836 A GB803836 A GB 803836A GB 23824/56 A GB23824/56 A GB 23824/56A GB 2382456 A GB2382456 A GB 2382456A GB 803836 A GB803836 A GB 803836A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motors
- pump
- fluid
- valve
- motor
- 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
- 239000000446 fuel Substances 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 abstract 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/02—Tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
- F02M2700/13—Special devices for making an explosive mixture; Fuel pumps
- F02M2700/1317—Fuel pumpo for internal combustion engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
803,836. Centrifugal pumps. SVENSKA AEROPLAN A. B. Aug. 2, 1956 [Aug. 6, 1955], No. 23824/56. Class 110 (1). [Also in Group XXIX] Aircraft fuel pumps 9a, 9b, 9c, 9d, Fig. 1, connected in parallel to a common delivery line 10, are driven by separate hydraulic motors 6a, 6b, 6c, 6d which are supplied with motive fluid by an engine-driven variable-delivery hydraulic pump 1, and a valve mechanism 5 connects the motors successively to the pump 1 in such a way that as soon as one motor has reached the optimum speed range of its fuel pump, a further motor is put into operation, and conversely the motors are successively disconnected as the speeds fall below the optimum range. The motors exhaust to a common line 8 which returns the fluid by way of a reservoir 2 to the inlet of the pump 1. The valve mechanism 5 comprises an inlet 13, Fig. 2, from the pump 1 and outlets 12a, 12b, 12c, 12d to the motors 6a, 6b, 6c, 6d respectively. Fluid flows to the motor 6a through a metering nozzle 19a in a spring-loaded valve 17a. When the flow reaches a value corresponding to the optimum speed range of the motor 6a, it moves the valve 17a to uncover a passage 14a admitting fluid by way of a valve 17b to the motor 6b. As the flow from the pump 1 further increases, passages 14b and 14c are successively opened to admit fluid to the motors 6c and 6d respectively. If the flow increases sufficiently, valve 17d is moved to uncover a relief passage 14. With decreasing flow the motors are disconnected in the reverse order. Instead of being responsive to flow or dynamic pressure, the valve mechanism may be made directly responsive to the speed of the motors. In this case, the valves are actuated by centrifugal governors on the shafts of the motors. Instead of stopping when the valves are closed, the motors may be run at an idling speed by means of fluid leaking past the valves or admitted through separate passages. The pumps may be provided with non-return valves.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE803836X | 1955-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB803836A true GB803836A (en) | 1958-11-05 |
Family
ID=20342657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23824/56A Expired GB803836A (en) | 1955-08-06 | 1956-08-02 | Improvements in and relating to driving devices for aircraft fuel pumps connected in parallel to a common delivery conduit |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB803836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2326607A (en) * | 1997-06-23 | 1998-12-30 | Silsoe Research Inst | Spray nozzle arrangement |
-
1956
- 1956-08-02 GB GB23824/56A patent/GB803836A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2326607A (en) * | 1997-06-23 | 1998-12-30 | Silsoe Research Inst | Spray nozzle arrangement |
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