EP0234314A3 - Injection valve for reciprocating piston internal-combustion engines - Google Patents

Injection valve for reciprocating piston internal-combustion engines

Info

Publication number
EP0234314A3
EP0234314A3 EP87101143A EP87101143A EP0234314A3 EP 0234314 A3 EP0234314 A3 EP 0234314A3 EP 87101143 A EP87101143 A EP 87101143A EP 87101143 A EP87101143 A EP 87101143A EP 0234314 A3 EP0234314 A3 EP 0234314A3
Authority
EP
European Patent Office
Prior art keywords
valve
valve needle
spray holes
valve body
fuel supply
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.)
Withdrawn
Application number
EP87101143A
Other languages
German (de)
French (fr)
Other versions
EP0234314A2 (en
Inventor
Anton Steiger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Gebrueder Sulzer AG
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 by Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Publication of EP0234314A2 publication Critical patent/EP0234314A2/en
Publication of EP0234314A3 publication Critical patent/EP0234314A3/en
Withdrawn legal-status Critical Current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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
    • 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
    • F02M45/08—Injectors peculiar thereto
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Das Einspritzventil weist einen Ventilkörper (l,2,3) auf, der in seinem Innern eine Ventilnadel (9) und in seiner Wand einen Brennstoffzufuhrkanal (l4,l6) sowie auf zwei verschiedenen Höhen Spritzlöcher (7,8) enthält. Die Ventil­ nadel (9) weist einen vom Brennzufuhrstoffkanal (l4,l6) ausgehenden, sich durch die Ventilnadel erstreckenden und in deren brennraumseitige Stirnfläche zwischen die beiden Spritzlöcher (7,8) mündenden Kanal (l8,l9,20) auf. Inner­ halb der Wand des Ventilkörpers (l,2,3) ist eine mit dem Brennstoffzufuhrkanal (l4,l6) kommunizierende, zur Ventil­ nadel (9) koaxiale Ringnut (l5) vorgesehen, die sich etwa über die dem Brennraum (6) abgewendete Hälfte der axialen Länge der Ventilnadel erstreckt. Das im Ventilkörper (l,2, 3) höher gelegene Spritzloch (8) zweigt im zylindrischen Abschnitt der die Ventilnadel (9) führenden Bohrung (l0) im Ventilkörper ab. Zwischen dieser Abzweigstelle und dem mit der Ventilnadel (9) zusammenwirkenden Ventilsitz be­ steht ein axialer Abstand (d). The injection valve has a valve body (1, 2, 3), which has a valve needle (9) inside and its inside Walled a fuel supply channel (l4, l6) and two contains different heights of spray holes (7,8). The valve needle (9) has one from the fuel supply channel (l4, l6) outgoing, extending through the valve needle and in the combustion chamber end face between the two Spray holes (7,8) opening channel (l8, l9,20). Inner half of the wall of the valve body (l, 2,3) is one with the Fuel supply channel (l4, l6) communicating to the valve needle (9) coaxial annular groove (l5) provided, which is approximately over the half of the axial facing away from the combustion chamber (6) Length of the valve needle extends. That in the valve body (l, 2, 3) Spray hole (8) located higher in the cylindrical Section of the bore (l0) guiding the valve needle (9) in the valve body. Between this junction and the with the valve needle (9) interacting valve seat be there is an axial distance (d).

Durch diese Konstruktion wird es möglich, mit nur einer Ventilnadel den einzuspritzenden Brennstoff entweder nur den auf einer Höhe befindlichen Spritzlöchern oder den auf beiden Höhen befindlichen Spritzlöchern zuzuführen. This construction makes it possible to use just one Valve needle either the fuel to be injected only the spray holes at a height or on both spray holes located at heights.

EP87101143A 1986-02-12 1987-01-28 Injection valve for reciprocating piston internal-combustion engines Withdrawn EP0234314A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH563/86A CH669822A5 (en) 1986-02-12 1986-02-12
CH563/86 1986-02-12

Publications (2)

Publication Number Publication Date
EP0234314A2 EP0234314A2 (en) 1987-09-02
EP0234314A3 true EP0234314A3 (en) 1988-10-12

Family

ID=4189904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101143A Withdrawn EP0234314A3 (en) 1986-02-12 1987-01-28 Injection valve for reciprocating piston internal-combustion engines

Country Status (4)

Country Link
US (1) US4758169A (en)
EP (1) EP0234314A3 (en)
JP (1) JPH07109189B2 (en)
CH (1) CH669822A5 (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818862C2 (en) * 1987-06-19 1999-01-07 Volkswagen Ag Fuel injector
FR2624208B1 (en) * 1987-12-04 1990-03-30 Renault Vehicules Ind CYLINDRICAL GUIDANCE DEVICE WITH OPERATING GAME COMPENSATION
GB8817774D0 (en) * 1988-07-26 1988-09-01 Lucas Ind Plc Fuel injectors for i c engines
DE68922871T2 (en) * 1988-03-04 1995-10-19 Yamaha Motor Co Ltd Fuel injector.
US4909444A (en) * 1988-10-17 1990-03-20 General Motors Corporation Poppet covered orifice fuel injection nozzle
JP2781894B2 (en) * 1989-08-03 1998-07-30 石川島播磨重工業株式会社 Curtain coater
US5042441A (en) * 1989-10-03 1991-08-27 Paul Marius A Low emission combustion system for internal combustion engines
US5472142A (en) * 1992-08-11 1995-12-05 Nippondenso Co., Ltd. Accumulator fuel injection apparatus
JPH0666219A (en) * 1992-08-11 1994-03-08 Nippondenso Co Ltd Fuel injector for diesel engine
US5647536A (en) * 1995-01-23 1997-07-15 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector
US5899385A (en) * 1995-07-21 1999-05-04 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE19618468C1 (en) * 1996-05-08 1997-04-30 Siemens Ag Hydraulically actuated fuel injection valve for combustion engine
GB9622335D0 (en) * 1996-10-26 1996-12-18 Lucas Ind Plc Injector arrangement
US5899389A (en) * 1997-06-02 1999-05-04 Cummins Engine Company, Inc. Two stage fuel injector nozzle assembly
EP1076771B1 (en) 1998-05-07 2004-03-17 Siemens Aktiengesellschaft Fuel injection valve for internal combustion engines
DE19917190A1 (en) * 1999-04-16 2000-10-26 Mtu Friedrichshafen Gmbh Fuel injector for internal combustion engine; has high pressure channel to supply fuel and nozzle needle in guide bore and has high pressure space behind guide bore to receive overflowing fuel
US6467702B1 (en) * 1999-06-25 2002-10-22 Delphi Technologies, Inc. Fuel injector
US6764028B2 (en) 2001-04-04 2004-07-20 Synerject, Llc Fuel injector nozzles
DE10136157A1 (en) * 2001-05-04 2002-08-29 Mtu Friedrichshafen Gmbh Fuel injector for IC engines of motor vehicles has fuel reservoir of one-piece precision-cast component of hardened steel, fastened to rear of injector housing
US6601566B2 (en) 2001-07-11 2003-08-05 Caterpillar Inc Fuel injector with directly controlled dual concentric check and engine using same
US6637675B2 (en) 2001-07-13 2003-10-28 Cummins Inc. Rate shaping fuel injector with limited throttling
US6557776B2 (en) 2001-07-19 2003-05-06 Cummins Inc. Fuel injector with injection rate control
US6705543B2 (en) 2001-08-22 2004-03-16 Cummins Inc. Variable pressure fuel injection system with dual flow rate injector
US6725838B2 (en) 2001-10-09 2004-04-27 Caterpillar Inc Fuel injector having dual mode capabilities and engine using same
US6511002B1 (en) 2002-06-13 2003-01-28 Alfred J. Buescher EMD-type injector with improved spring seat
DE10247958A1 (en) * 2002-10-15 2004-04-29 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
JP3935829B2 (en) * 2002-11-20 2007-06-27 三菱重工業株式会社 Internal combustion engine leak fuel recovery device
US6945475B2 (en) 2002-12-05 2005-09-20 Caterpillar Inc Dual mode fuel injection system and fuel injector for same
US7007865B2 (en) * 2003-08-14 2006-03-07 Rex A. Dodd Self-adjusting nozzle
CN1323239C (en) * 2005-02-07 2007-06-27 大连理工大学 Fuel injection nozzle
JP4528701B2 (en) * 2005-09-13 2010-08-18 日立オートモティブシステムズ株式会社 Injection valve and orifice machining method
US20070200011A1 (en) * 2006-02-28 2007-08-30 Caterpillar Inc. Fuel injector having nozzle member with annular groove
CN101558231B (en) * 2006-12-15 2012-01-04 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 A fuel injector for an internal combustion engine
DK178149B1 (en) * 2013-10-30 2015-06-29 Man Diesel & Turbo Deutschland A Fuel Valve for Pilot Oil Injection and for Injecting Gaseous Fuel into the Combustion Chamber of a Self-Igniting Internal Combustion Engine
EP2896811B1 (en) * 2014-01-15 2016-10-19 Continental Automotive GmbH Nozzle assembly and fuel injection valve for a combustion engine
US10570865B2 (en) * 2016-11-08 2020-02-25 Ford Global Technologies, Llc Fuel injector with variable flow direction
US10927739B2 (en) * 2016-12-23 2021-02-23 Cummins Emission Solutions Inc. Injector including swirl device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR791105A (en) * 1934-07-04 1935-12-04 Siemens Ag Injection device for diesel engines with pre-injection and main injection
GB1055010A (en) * 1964-12-02 1967-01-11 Pneumo Dynamics Corp An improved fuel injection unit for internal combustion engines
FR2384124A1 (en) * 1977-03-16 1978-10-13 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
DE2726300A1 (en) * 1977-06-10 1978-12-21 Bosch Gmbh Robert IC engine fuel injection nozzle - in which most of needle valve closing force is exerted by fuel
FR2408042A1 (en) * 1977-11-04 1979-06-01 Bosch Gmbh Robert FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES
DE2759187A1 (en) * 1977-12-31 1979-07-12 Bosch Gmbh Robert FUEL INJECTION SYSTEM WITH AT LEAST ONE FUEL INJECTION VALVE, ESPECIALLY FOR LARGE ENGINES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL133905C (en) * 1968-11-05
DE2014215A1 (en) * 1970-03-24 1971-10-14 Bergmann, Rolf, 8900 Augsburg Control of the fuel nozzle
DE2711393A1 (en) * 1977-03-16 1978-09-21 Bosch Gmbh Robert FUEL INJECTOR
DE2711902A1 (en) * 1977-03-18 1978-09-21 Bosch Gmbh Robert FUEL INJECTOR
DE3237881A1 (en) * 1982-10-13 1984-04-19 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection nozzle for internal combustion engines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR791105A (en) * 1934-07-04 1935-12-04 Siemens Ag Injection device for diesel engines with pre-injection and main injection
GB1055010A (en) * 1964-12-02 1967-01-11 Pneumo Dynamics Corp An improved fuel injection unit for internal combustion engines
FR2384124A1 (en) * 1977-03-16 1978-10-13 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
DE2726300A1 (en) * 1977-06-10 1978-12-21 Bosch Gmbh Robert IC engine fuel injection nozzle - in which most of needle valve closing force is exerted by fuel
FR2408042A1 (en) * 1977-11-04 1979-06-01 Bosch Gmbh Robert FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES
DE2759187A1 (en) * 1977-12-31 1979-07-12 Bosch Gmbh Robert FUEL INJECTION SYSTEM WITH AT LEAST ONE FUEL INJECTION VALVE, ESPECIALLY FOR LARGE ENGINES

Also Published As

Publication number Publication date
CH669822A5 (en) 1989-04-14
EP0234314A2 (en) 1987-09-02
US4758169A (en) 1988-07-19
JPH07109189B2 (en) 1995-11-22
JPS62191660A (en) 1987-08-22

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Inventor name: STEIGER, ANTON