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GB1227918A - - Google Patents

Info

Publication number
GB1227918A
GB1227918A GB1227918DA GB1227918A GB 1227918 A GB1227918 A GB 1227918A GB 1227918D A GB1227918D A GB 1227918DA GB 1227918 A GB1227918 A GB 1227918A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
fuel
chamber
line
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
Application number
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1227918A publication Critical patent/GB1227918A/en
Expired legal-status Critical Current

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

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

1,227,918. Fuel injectors. SULZER BROS. Ltd. Nov.3, 1969 [Nov. 5, 1968], No.53780/69. Heading F1B. An I.C. engine fuel injection system includes a valve needle 3 guided in a housing bore, a front fuel chamber 6 at the needle valve and adjacent the valve seat 4, a rear fuel chamber 13 at the remote end of the needle which is connected by a throttle duct 14 to a duct 7 connecting the front chamber 6 to a fuel reservoir 8 and a hydraulically operated control valve operated by a control pressure which is less than the fuel injection pressure to connect the rear fuel chamber to an area of pressure which is lower than the fuel pressure. Fuel is supplied from tank 12 to duct 7 by a pump 11. An engine driven control valve 31 controls the supply of fluid for actuating valve 16 delivered from a control pump 33. Operation: When control valve 31 connects line 34 to line 25 the valve 16 is lifted by pressure underneath piston 21 and connects the rear fuel chamber 13 to spill line 27 via bores 20, 30 chamber 23 and passage 26. The pressure in rear chamber 13 drops abruptly and the pressure in the front chamber 6 lifts the valve needle. When the control valve connects line 25 to line 27 the valve 16 is closed by the pressure operative upstream of pressure-maintaining valve 28, the pressure in the rear fuel chamber being re-established and the valve nedle 3 engages valve seat 4.
GB1227918D 1968-11-05 1969-11-03 Expired GB1227918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1645768A CH499720A (en) 1968-11-05 1968-11-05 Fuel injection system of a reciprocating internal combustion engine

Publications (1)

Publication Number Publication Date
GB1227918A true GB1227918A (en) 1971-04-15

Family

ID=4417534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1227918D Expired GB1227918A (en) 1968-11-05 1969-11-03

Country Status (7)

Country Link
US (1) US3640466A (en)
CH (1) CH499720A (en)
DE (1) DE1807965A1 (en)
ES (1) ES372866A1 (en)
FR (1) FR2022579A1 (en)
GB (1) GB1227918A (en)
NL (2) NL6816749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487508A (en) * 1994-03-31 1996-01-30 Caterpillar Inc. Injection rate shaping control ported check stop for a fuel injection nozzle

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005826A (en) * 1972-06-12 1977-02-01 National Research Development Corporation Injectors for the fuel injection systems of internal combustion engines
DE2235083A1 (en) * 1972-07-18 1974-01-31 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR COMBUSTION MACHINES
GB1472401A (en) * 1973-05-12 1977-05-04 Cav Ltd Fuel injection nozzles
US3976249A (en) * 1973-05-12 1976-08-24 C.A.V. Limited Fuel injection systems for internal combustion engines
US3998084A (en) * 1974-11-01 1976-12-21 Marotta Scientific Controls, Inc. Cooling spray system for rolling mill
DE2812519C2 (en) * 1978-03-22 1984-05-30 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Fuel injection nozzle with needle lift control for direct injection internal combustion engines
US4260112A (en) * 1980-02-04 1981-04-07 Caterpillar Tractor Co. Springless fuel injection nozzle
WO1983000639A1 (en) * 1980-02-04 1983-03-03 Grgurich, William, A. Springless fuel injection nozzle
AT378242B (en) * 1981-07-31 1985-07-10 Berchtold Max Prof FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES, ESPECIALLY DIESEL ENGINES
JPS61187567A (en) * 1985-02-15 1986-08-21 Kawasaki Heavy Ind Ltd gas injection valve
FR2580728B1 (en) * 1985-04-19 1989-05-05 Alsacienne Constr Meca FUEL INJECTION SYSTEM FOR DIESEL ENGINE
CH669822A5 (en) * 1986-02-12 1989-04-14 Sulzer Ag
US5397055A (en) * 1991-11-01 1995-03-14 Paul; Marius A. Fuel injector system
DE4336108C1 (en) * 1993-10-22 1994-12-01 Daimler Benz Ag Solenoid valve on a fuel injection nozzle provided for internal combustion engines
DE19744518A1 (en) * 1997-10-09 1999-04-15 Bosch Gmbh Robert Fuel injection valve for internal combustion engine
DE19900033A1 (en) * 1999-01-02 2000-07-06 Bosch Gmbh Robert Fuel injection device for internal combustion engines
US6360721B1 (en) 2000-05-23 2002-03-26 Caterpillar Inc. Fuel injector with independent control of check valve and fuel pressurization
US6984571B1 (en) * 1999-10-01 2006-01-10 Ziptronix, Inc. Three dimensional device integration method and integrated device
US6725838B2 (en) 2001-10-09 2004-04-27 Caterpillar Inc Fuel injector having dual mode capabilities and engine using same
WO2008141237A1 (en) * 2007-05-09 2008-11-20 Sturman Digital Systems, Llc Multiple intensifier injectors with positive needle control and methods of injection
US20100012745A1 (en) * 2008-07-15 2010-01-21 Sturman Digital Systems, Llc Fuel Injectors with Intensified Fuel Storage and Methods of Operating an Engine Therewith
US9181890B2 (en) 2012-11-19 2015-11-10 Sturman Digital Systems, Llc Methods of operation of fuel injectors with intensified fuel storage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2173812A (en) * 1936-09-09 1939-09-19 Bischof Bernhard Fuel injection apparatus
US2279010A (en) * 1941-08-19 1942-04-07 American Locomotive Co Fuel injection apparatus
US2378165A (en) * 1942-02-07 1945-06-12 Sulzer Ag Fuel injection device
US2680651A (en) * 1953-06-16 1954-06-08 American Locomotive Co Fuel injector
US2788246A (en) * 1956-06-27 1957-04-09 Alco Products Inc Fuel injectors
US3115304A (en) * 1961-10-11 1963-12-24 Gen Motors Corp Fuel injector pump with hydraulically controlled injection valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487508A (en) * 1994-03-31 1996-01-30 Caterpillar Inc. Injection rate shaping control ported check stop for a fuel injection nozzle

Also Published As

Publication number Publication date
ES372866A1 (en) 1971-11-01
NL133905C (en)
US3640466A (en) 1972-02-08
DE1807965A1 (en) 1970-07-30
FR2022579A1 (en) 1970-07-31
CH499720A (en) 1970-11-30
NL6816749A (en) 1970-05-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee