GB1219694A - Fuel injection valves for internal combustion engines - Google Patents
Fuel injection valves for internal combustion enginesInfo
- Publication number
- GB1219694A GB1219694A GB3826569A GB3826569A GB1219694A GB 1219694 A GB1219694 A GB 1219694A GB 3826569 A GB3826569 A GB 3826569A GB 3826569 A GB3826569 A GB 3826569A GB 1219694 A GB1219694 A GB 1219694A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuel
- valve
- valve needle
- seat
- fuel chamber
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
1,219,694. I.C. engine fuel injectors. SULZER BROS. Ltd. July 30, 1969 [July 31, 1968], No.38265/69. Heading F1B. An I.C. engine fuel injection valve comprises a valve needle 103, Fig. 3, guided at 34c in a housing 10a and co-operating with a valve seat 32a in the housing, the end of the valve needle remote from the seat being a greater diameter than the seat; a forward fuel chamber 115 connected via ducts 114, 15 to a fuel line in which a constant pressure of 500 to 1000 atmospheres or more is maintained by a fuel pump; and a spool valve 100 having a control edge 111 co-operating with a control edge 112 to allow fuel to enter a rear fuel chamber 116 from the duct 15. When a solenoid (not shown) is energized to cause a core 23 to attract the disc-like end 102 of the spool valve 100 and thereby lift the spool valve, the control edges 111, 112 block the flow of fuel from the duct 15 to the rear fuel chamber 116, and at the same time a conical end 106 of the spool valve is lifted from a seat 105 to allow fuel to flow from the rear fuel chamber via ducts 107, 108, 104 to the engine cylinder. The resultant fall in pressure above the upper end of the valve needle 103 allows the fuel pressure in the forward fuel chamber 115 to raise the valve needle from the seat 32a to permit fuel to flow via the ducts 15, 114 and the forward fuel chamber into the engine cylinder. The rapid movement of the valve needle 103 is cushioned by a stop ring 117. In another embodiment, Figs. 1 and 2 (not shown), the spool valve (26) slides within a bore (40) in the valve needle (35), the flow of fuel into the rear fuel chamber (54) being controlled by a control edge (48) on the spool valve co-operating with a control edge (46) formed within the valve needle. The stop ring (52) for cushioning the rapid upward movement of the valve needle (35) may be replaced by a stick of belleville washers (120), Fig. 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1152668A CH494346A (en) | 1968-07-31 | 1968-07-31 | Electromagnetically controlled fuel injection valve of a reciprocating internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1219694A true GB1219694A (en) | 1971-01-20 |
Family
ID=4374374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3826569A Expired GB1219694A (en) | 1968-07-31 | 1969-07-30 | Fuel injection valves for internal combustion engines |
Country Status (6)
| Country | Link |
|---|---|
| CH (1) | CH494346A (en) |
| DE (1) | DE1751830B1 (en) |
| ES (1) | ES369593A1 (en) |
| FR (1) | FR2014036A1 (en) |
| GB (1) | GB1219694A (en) |
| NL (1) | NL6811856A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2286427A (en) * | 1994-02-09 | 1995-08-16 | Daimler Benz Ag | Solenoid valve controlled high pressure i.c.engine fuel injector |
| WO1999019619A1 (en) * | 1997-10-09 | 1999-04-22 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| CN113250876A (en) * | 2021-06-18 | 2021-08-13 | 中国北方发动机研究所(天津) | Slide valve type common rail oil sprayer |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2914966C2 (en) * | 1979-04-12 | 1986-12-11 | Institut für Motorenbau Prof. Huber e.V., 8000 München | Injection device for an internal combustion engine |
| IT212431Z2 (en) * | 1987-08-25 | 1989-07-04 | Weber Srl | THE ELECTROMAGNETIC CONTROL FOR FUEL INJECTION VALVE DIESEL CYCLE ENGINES |
| DE3855969T2 (en) * | 1987-12-02 | 1998-03-05 | Ganser Hydromag | Electromagnetically actuated device for quickly switching an electro-hydraulically operated fuel injector |
| DE4340305C2 (en) * | 1993-11-26 | 1998-02-19 | Daimler Benz Ag | Fuel injection nozzle for an internal combustion engine |
| DE10132450B4 (en) * | 2001-07-04 | 2010-02-11 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1902197A (en) * | 1930-10-20 | 1933-03-21 | Guiberson Diesel Engine Compan | Fuel injector for engines |
| DE711940C (en) * | 1938-06-25 | 1941-10-09 | Rudolf L Orange Dipl Ing | Automatic needle nozzle |
| CH434875A (en) * | 1966-06-21 | 1967-04-30 | Huber Robert | Fuel injection valve with electromagnetic actuation |
-
1968
- 1968-07-31 CH CH1152668A patent/CH494346A/en not_active IP Right Cessation
- 1968-08-06 DE DE19681751830 patent/DE1751830B1/en active Pending
- 1968-08-20 NL NL6811856A patent/NL6811856A/xx unknown
-
1969
- 1969-07-16 ES ES369593A patent/ES369593A1/en not_active Expired
- 1969-07-23 FR FR6925133A patent/FR2014036A1/fr not_active Withdrawn
- 1969-07-30 GB GB3826569A patent/GB1219694A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2286427A (en) * | 1994-02-09 | 1995-08-16 | Daimler Benz Ag | Solenoid valve controlled high pressure i.c.engine fuel injector |
| GB2286427B (en) * | 1994-02-09 | 1997-05-28 | Daimler Benz Ag | Solenoid-valve-controlled injector for an internal combustion engine |
| WO1999019619A1 (en) * | 1997-10-09 | 1999-04-22 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| CN113250876A (en) * | 2021-06-18 | 2021-08-13 | 中国北方发动机研究所(天津) | Slide valve type common rail oil sprayer |
Also Published As
| Publication number | Publication date |
|---|---|
| ES369593A1 (en) | 1971-06-01 |
| CH494346A (en) | 1970-07-31 |
| FR2014036A1 (en) | 1970-04-10 |
| NL6811856A (en) | 1970-02-03 |
| DE1751830B1 (en) | 1969-12-04 |
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