FR2457987A1 - Fuel pump for internal combustion engine - pre-injects small quantity of fuel through small secondary inlet port at beginning of each stroke - Google Patents
Fuel pump for internal combustion engine - pre-injects small quantity of fuel through small secondary inlet port at beginning of each strokeInfo
- Publication number
- FR2457987A1 FR2457987A1 FR7913486A FR7913486A FR2457987A1 FR 2457987 A1 FR2457987 A1 FR 2457987A1 FR 7913486 A FR7913486 A FR 7913486A FR 7913486 A FR7913486 A FR 7913486A FR 2457987 A1 FR2457987 A1 FR 2457987A1
- Authority
- FR
- France
- Prior art keywords
- fuel
- internal combustion
- combustion engine
- inlet port
- stroke
- 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.)
- Granted
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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/06—Pumps peculiar thereto
- F02M45/066—Having specially arranged spill port and spill contour on the piston
-
- 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
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/22—Varying quantity or timing by adjusting cylinder-head space
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The fuel injection pump of an internal combustion engine has two main inlet ports and a secondary inlet port. As the piston moves upwards it begins to deliver fuel as soon as the piston covers the port. After a small quantity of fuel has been delivered, the groove is aligned with the port which is connected to a low pressure source of fuel. Thus no more fuel is delivered to the engine until the edge covers the port (14) when delivery to the engine recommences.
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7913486A FR2457987A1 (en) | 1979-05-28 | 1979-05-28 | Fuel pump for internal combustion engine - pre-injects small quantity of fuel through small secondary inlet port at beginning of each stroke |
FR8011046A FR2482669A2 (en) | 1979-05-28 | 1980-05-16 | IMPROVEMENT TO INJECTION PUMP FOR INTERNAL COMBUSTION ENGINE |
EP80400720A EP0020249B1 (en) | 1979-05-28 | 1980-05-22 | Injection pump for internal-combustion engine |
DE8080400720T DE3069004D1 (en) | 1979-05-28 | 1980-05-22 | Injection pump for internal-combustion engine |
IN383/DEL/80A IN154379B (en) | 1979-05-28 | 1980-05-23 | |
YU1425/80A YU42508B (en) | 1979-05-28 | 1980-05-27 | Pump for injecting fuel into cylinder for internal combustion motors |
CS803750A CS243455B2 (en) | 1979-05-28 | 1980-05-28 | Injection pump |
AU58828/80A AU544751B2 (en) | 1979-05-28 | 1980-05-28 | Fuel injection pump variable delivery |
DD80221424A DD151205A5 (en) | 1979-05-28 | 1980-05-28 | FUEL INJECTION PUMP FOR A INTERNAL COMBUSTION ENGINE |
JP7128880A JPS55161958A (en) | 1979-05-28 | 1980-05-28 | Fuel injection pump for internal combustion engine |
ES491946A ES491946A0 (en) | 1979-05-28 | 1980-05-28 | INJECTION PUMP FOR INJECTING FUEL INTO A CYLINDER OF AN INTERNAL COMBUSTION ENGINE |
KR1019800002101A KR840001289B1 (en) | 1979-05-28 | 1980-05-28 | Injection pump for internal combustion engine |
PL1980224562A PL136603B1 (en) | 1979-05-28 | 1980-05-28 | Injection pump for internal combustion engines |
US06/477,594 US4426198A (en) | 1979-05-28 | 1983-03-25 | Fuel-injection pump for internal combustion engine |
HRP-1425/80A HRP920557B1 (en) | 1979-05-28 | 1992-09-28 | Pump for injecting the fuel into the cylinder of the internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7913486A FR2457987A1 (en) | 1979-05-28 | 1979-05-28 | Fuel pump for internal combustion engine - pre-injects small quantity of fuel through small secondary inlet port at beginning of each stroke |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2457987A1 true FR2457987A1 (en) | 1980-12-26 |
FR2457987B1 FR2457987B1 (en) | 1984-01-06 |
Family
ID=9225909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7913486A Granted FR2457987A1 (en) | 1979-05-28 | 1979-05-28 | Fuel pump for internal combustion engine - pre-injects small quantity of fuel through small secondary inlet port at beginning of each stroke |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2457987A1 (en) |
IN (1) | IN154379B (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR838688A (en) * | 1937-11-25 | 1939-03-13 | Andre Citroe N | Fractional injection injection device |
GB571485A (en) * | 1942-09-16 | 1945-08-27 | Bendix Aviat Corp | Improvements in or relating to fuel injection apparatus |
GB641575A (en) * | 1948-01-03 | 1950-08-16 | Cav Ltd | Improvements relating to liquid fuel injection pumps |
FR1037219A (en) * | 1950-05-24 | 1953-09-15 | Cav Ltd | Fuel injection pump for internal combustion engines |
DE923400C (en) * | 1941-04-03 | 1955-02-10 | Versuchsanstalt Fuer Luftfahrt | Regulation of the fuel quantity of internal combustion engines according to the Otto method with split injection |
US3792692A (en) * | 1972-03-22 | 1974-02-19 | Teledyne Ind | Fuel injection device |
DE2501764A1 (en) * | 1975-01-17 | 1976-07-22 | Guenther Kuske | Diesel engine fuel injection pump - has plunger with intermediate groove to produce pre-injection before main injection |
-
1979
- 1979-05-28 FR FR7913486A patent/FR2457987A1/en active Granted
-
1980
- 1980-05-23 IN IN383/DEL/80A patent/IN154379B/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR838688A (en) * | 1937-11-25 | 1939-03-13 | Andre Citroe N | Fractional injection injection device |
DE923400C (en) * | 1941-04-03 | 1955-02-10 | Versuchsanstalt Fuer Luftfahrt | Regulation of the fuel quantity of internal combustion engines according to the Otto method with split injection |
GB571485A (en) * | 1942-09-16 | 1945-08-27 | Bendix Aviat Corp | Improvements in or relating to fuel injection apparatus |
GB641575A (en) * | 1948-01-03 | 1950-08-16 | Cav Ltd | Improvements relating to liquid fuel injection pumps |
FR1037219A (en) * | 1950-05-24 | 1953-09-15 | Cav Ltd | Fuel injection pump for internal combustion engines |
US3792692A (en) * | 1972-03-22 | 1974-02-19 | Teledyne Ind | Fuel injection device |
DE2501764A1 (en) * | 1975-01-17 | 1976-07-22 | Guenther Kuske | Diesel engine fuel injection pump - has plunger with intermediate groove to produce pre-injection before main injection |
Also Published As
Publication number | Publication date |
---|---|
FR2457987B1 (en) | 1984-01-06 |
IN154379B (en) | 1984-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB912725A (en) | Improvement in or relating to fuel injection pumps for internal combustion engines | |
ES8103592A1 (en) | Injection pump for internal-combustion engine. | |
GB777536A (en) | Improvements in or relating to fuel injection equipment | |
GB1235514A (en) | Improvements in or relating to fuel injection pumps | |
ES464012A1 (en) | Fuel systems for an internal combustion engine | |
ES477702A1 (en) | Distributor-type injector pump, for multi-cylinder compression-ignition internal combustion engines | |
GB1046951A (en) | Liquid fuel injection pumps for use with internal combustion engines | |
ES456662A1 (en) | Fuel injection pump for internal combustion engines | |
DE3778629D1 (en) | FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES. | |
SE7906380L (en) | FEED VALVE FOR FUEL INJECTION SYSTEM | |
ES338857A1 (en) | Liquid fuel pumping apparatus for supplying fuel to internal combustion engines | |
JPS54134222A (en) | Distributive fuel injection pump | |
EP0185914A3 (en) | Fuel injection pump for internal combustion engines | |
GB863698A (en) | Improvements in or relating to fuel injection pumps | |
JPS5447924A (en) | Fuel injection device for internal combustion engine with sub chamber | |
FR2457987A1 (en) | Fuel pump for internal combustion engine - pre-injects small quantity of fuel through small secondary inlet port at beginning of each stroke | |
GB728697A (en) | Improvements relating to fuel injection systems for internal combustion engines | |
GB616721A (en) | Improvements relating to liquid fuel pumps | |
GB902925A (en) | Improvements in or relating to fuel injection apparatus for internal combustion engines | |
JPS56106060A (en) | Fuel injector for internal combustion engine | |
GB930076A (en) | Improvements in and relating to a fuel injection system for internal combustion engines | |
GB2028421A (en) | Fuelinjection pump for internal-combustion engines | |
GB1131269A (en) | Improvements in fuel injection systems for internal combustion engines | |
GB1191107A (en) | Improvements in Fuel Injection Systems for Internal Combustion Engines | |
JPS5656962A (en) | Fuel injection device in diesel engine |