GB1421761A - Liquid fuel injection pumping apparatus - Google Patents
Liquid fuel injection pumping apparatusInfo
- Publication number
- GB1421761A GB1421761A GB1021572A GB1021572A GB1421761A GB 1421761 A GB1421761 A GB 1421761A GB 1021572 A GB1021572 A GB 1021572A GB 1021572 A GB1021572 A GB 1021572A GB 1421761 A GB1421761 A GB 1421761A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- piston
- pump
- engine
- fuel injection
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
- F02M41/1405—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
- F02M41/1411—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
- F02M41/1416—Devices specially adapted for angular adjustment of annular cam
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
1421761 Fuel injection pumps CAV Ltd 21 Feb 1973 [4 March 1972] 10215/72 Heading F1A [Also in Division G3] The injection timing of a fuel injection pump is controlled by a pressure-operated piston 21 operable to move e.g. a cam ring 18, the supply of pressure to the piston being controlled by a servovalve 26 responsive to pressures dependent on the quantity of fuel supplied by the pump to an associated engine and to the speed of the engine. The engine speed dependent pressure is obtained from a feed pump (10) driven by the engine and feeding through a control valve (15) which produces a pressure which varies with the square of the engine speed. This pressure is applied to the lefthand end of the servovalve 26, the latter being urged to the left by a spring 31 acting through a push rod 32. The pressure dependent on pump delivery quantity is supplied through a restriction 34 to assist the spring 31, and is taken from a point between a quantity control device (11) and the injection pump inlet. The position established by the valve 26 opens a port 27 leading to the lefthand end of the piston 21 either to low pressure or feed pump pressure. To ensure that the piston 21 is held in its "retarded" position for starting, a spring (35) may be disposed between the rod 32 and the valve 26.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1021572A GB1421761A (en) | 1972-03-04 | 1972-03-04 | Liquid fuel injection pumping apparatus |
| CA165,127A CA971064A (en) | 1972-03-04 | 1973-03-02 | Liquid fuel injection pumping apparatus |
| FR7307758A FR2175015B1 (en) | 1972-03-04 | 1973-03-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1021572A GB1421761A (en) | 1972-03-04 | 1972-03-04 | Liquid fuel injection pumping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1421761A true GB1421761A (en) | 1976-01-21 |
Family
ID=9963724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1021572A Expired GB1421761A (en) | 1972-03-04 | 1972-03-04 | Liquid fuel injection pumping apparatus |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA971064A (en) |
| FR (1) | FR2175015B1 (en) |
| GB (1) | GB1421761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2195036A (en) * | 1986-08-16 | 1988-03-23 | Lucas Ind Plc | Fuel injection pump |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4365939A (en) * | 1979-07-06 | 1982-12-28 | Lucas Industries Limited | Fuel injection pumping apparatus |
-
1972
- 1972-03-04 GB GB1021572A patent/GB1421761A/en not_active Expired
-
1973
- 1973-03-02 CA CA165,127A patent/CA971064A/en not_active Expired
- 1973-03-05 FR FR7307758A patent/FR2175015B1/fr not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2195036A (en) * | 1986-08-16 | 1988-03-23 | Lucas Ind Plc | Fuel injection pump |
| GB2220507A (en) * | 1986-08-16 | 1990-01-10 | Lucas Ind Plc | Fuel injection pump |
| GB2195036B (en) * | 1986-08-16 | 1990-04-25 | Lucas Ind Plc | Fuel injection pump |
| GB2220507B (en) * | 1986-08-16 | 1990-04-25 | Lucas Ind Plc | Fuel injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CA971064A (en) | 1975-07-15 |
| FR2175015A1 (en) | 1973-10-19 |
| FR2175015B1 (en) | 1976-04-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |