EP0393017B1 - Hydraulisch betätigbares Ventil mit steuerbarem Hub - Google Patents

Hydraulisch betätigbares Ventil mit steuerbarem Hub Download PDF

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Publication number
EP0393017B1
EP0393017B1 EP90890109A EP90890109A EP0393017B1 EP 0393017 B1 EP0393017 B1 EP 0393017B1 EP 90890109 A EP90890109 A EP 90890109A EP 90890109 A EP90890109 A EP 90890109A EP 0393017 B1 EP0393017 B1 EP 0393017B1
Authority
EP
European Patent Office
Prior art keywords
valve
stop
valve according
cam
stop cam
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 - Lifetime
Application number
EP90890109A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0393017A2 (de
EP0393017A3 (de
Inventor
Christof D. Dipl.-Ing. Fischer
Diethard Dipl.-Ing. Plohberger
Karl Dipl.-Ing. Wojik
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.)
AVL List GmbH
Original Assignee
AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH
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 AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH filed Critical AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH
Publication of EP0393017A2 publication Critical patent/EP0393017A2/de
Publication of EP0393017A3 publication Critical patent/EP0393017A3/de
Application granted granted Critical
Publication of EP0393017B1 publication Critical patent/EP0393017B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M47/04—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure using fluid, other than fuel, for injection-valve actuation
    • F02M47/043—Fluid pressure acting on injection-valve in the period of non-injection to keep it closed
    • 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
    • F02M61/161—Means for adjusting injection-valve lift
    • 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
    • F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
    • F02M67/10—Injectors peculiar thereto, e.g. valve less type
    • F02M67/12—Injectors peculiar thereto, e.g. valve less type having valves

Definitions

  • valves make it possible, for example, to achieve particularly high thermal efficiencies in internal combustion engines.
  • a certain gas volume is taken from the respective cylinder and temporarily stored in a gas storage device.
  • the fuel is injected into this buffer. In this way, almost the entire duration of a working cycle of the internal combustion engine is available for the distribution of the fuel in the storage volume.
  • the valve opens during the next compression cycle.
  • Valves which have a piston with a stop surface. This stop surface interacts with a valve-fixed counter surface, which limits the maximum valve lift.
  • a valve-fixed counter surface which limits the maximum valve lift.
  • a valve is known from WO-A 89/01568 in which the maximum valve lift can be set hydraulically via a control device.
  • a control device is complex and not very precise.
  • a motor-driven stop cam which cooperates with the stop surface, the maximum valve lift being adjustable by rotating the stop cam by a predetermined angle and the stop cam being able to be brought into contact with the stop surface even in the closed position of the valve .
  • the valve always has two end positions, which are defined on the one hand by the seating of the valve plate on the valve seat and on the other hand by the stop of the stop surface.
  • the stop cam is arranged so that it can be brought into contact with the stop surface even when the valve is closed. In this way it is possible for the stop cam to return to an initial position after each working stroke of the valve, in which the stop cam rests against the stop surface when the valve is closed. This results in a well-defined starting position for the dimensioning of the rotary movement of the stop cam, which is carried out to limit the next opening of the valve. In this way, different thermal expansions and wear can be compensated for.
  • the drive shaft penetrates the valves, the assemblies consisting of slip clutch and stop cam being arranged within the valves.
  • the valve itself represents a housing for the more sensitive components, in particular the slip clutch. Only the drive takes place from the outside.
  • a control device for the engine which controls the maximum valve lift by rotating the stop cam on the basis of a predetermined characteristic diagram and data on the operating state of the internal combustion engine, and which in the closed valve reverses the on Knock cam causes, the motor makes a larger angle of rotation during this reverse rotation than corresponds to the return to the theoretical zero position. If the motor is designed as a stepper motor, this means that the control device, prior to opening the valve, effects the execution of a predetermined number of steps, which corresponds to a specific angle of rotation of the stop cam and thus to a specific maximum valve lift and which, after the valve is closed, is carried out a larger number of steps than before opening in the opposite direction.
  • a gas accumulator for a gas volume extracted from the cylinder of an internal combustion engine and a fuel injection device for introducing the fuel into this gas accumulator are provided.
  • Such a mixture injection valve enables the highest thermal efficiencies to be achieved in internal combustion engines.
  • the maximum valve lift can be limited to a value between 0 and 0.5 mm by the stop cam.
  • an atomizing device 26 is provided for deflecting the gas jet, which has one or more bores 27.
  • the valve 1 is thermally insulated from the cylinder head 2. Oil coal mainly forms in a temperature range from 150 to 180 ° C. If the valve is operated above 180 ° C, self-cleaning takes place, which increases the service life considerably. This is caused by the formation of a gap 28 between valve 1 and cylinder head 2.
  • the sealing seat 29 between the valve 1 and the cylinder head can be made of a material with extremely poor thermal conductivity.
  • a common motor 16 is provided for driving a plurality of stop cams 114 of an internal combustion engine (not shown in more detail).
  • the drive shaft 115 penetrates the valves 101 in the area of the control chambers 108.
  • the drive shaft 115 is constructed from several segments which are connected to one another by flanges 90.
  • the outer contour of the slip clutch 114 also forms the stop cam 111. Inside this stop cam 111 there is a cylinder surface 31 against which the clutch shoe 30 bears.
  • the clutch shoe 30 is connected to the shaft 115 by a pin 32.
  • a spiral spring 34 which is supported on a seat ring 91, which is screwed onto the shaft 115, presses the coupling jaw 30 against the cylinder surface 31.
  • the axis 92 of the shaft 115 lies outside the plane defined by the axes 93 of the valves 101 to avoid penetration of the valve stem 103 and the drive shaft 115.

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)
  • Valve Device For Special Equipments (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP90890109A 1989-04-12 1990-04-09 Hydraulisch betätigbares Ventil mit steuerbarem Hub Expired - Lifetime EP0393017B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT865/89 1989-04-12
AT0086589A AT407428B (de) 1989-04-12 1989-04-12 Hydraulisch betätigbares ventil mit steuerbarem hub

Publications (3)

Publication Number Publication Date
EP0393017A2 EP0393017A2 (de) 1990-10-17
EP0393017A3 EP0393017A3 (de) 1991-03-27
EP0393017B1 true EP0393017B1 (de) 1992-12-02

Family

ID=3501596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90890109A Expired - Lifetime EP0393017B1 (de) 1989-04-12 1990-04-09 Hydraulisch betätigbares Ventil mit steuerbarem Hub

Country Status (5)

Country Link
US (1) US5048489A (ja)
EP (1) EP0393017B1 (ja)
JP (1) JP2571452B2 (ja)
AT (1) AT407428B (ja)
DE (1) DE59000524D1 (ja)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332124A1 (de) * 1993-09-22 1995-03-23 Bosch Gmbh Robert Kraftstoffeinspritzdüse für Brennkraftmaschinen
US5438968A (en) * 1993-10-06 1995-08-08 Bkm, Inc. Two-cycle utility internal combustion engine
US5398654A (en) * 1994-04-04 1995-03-21 Orbital Fluid Technologies, Inc. Fuel injection system for internal combustion engines
JPH0893601A (ja) * 1994-09-22 1996-04-09 Zexel Corp 燃料噴射ノズル
DE19504849A1 (de) * 1995-02-15 1996-08-22 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
AT408138B (de) * 1995-02-23 2001-09-25 Avl Verbrennungskraft Messtech Einrichtung zum einbringen von kraftstoff in den brennraum einer brennkraftmaschine
AT408137B (de) * 1995-02-27 2001-09-25 Avl Verbrennungskraft Messtech Einrichtung zum einbringen von kraftstoff in den brennraum einer brennkraftmaschine
US6011195A (en) * 1996-10-10 2000-01-04 Kimberly-Clark Worldwide, Inc. Wet resilient absorbent article
DE19623211A1 (de) * 1996-06-11 1997-12-18 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
US5685273A (en) * 1996-08-07 1997-11-11 Bkm, Inc. Method and apparatus for controlling fuel injection in an internal combustion engine
FI101739B (fi) * 1996-08-16 1998-08-14 Waertsilae Nsd Oy Ab Ruiskutusventtiilijärjestely
WO1999039092A1 (en) * 1998-02-02 1999-08-05 Diesel Engine Retarders, Inc. Self-clipping slave piston device with lash adjustment for a compression release engine retarder
US6273057B1 (en) 1998-08-19 2001-08-14 Diesel Engine Retarders, Inc. Hydraulically-actuated fail-safe stroke-limiting piston
DE10048497A1 (de) * 1999-10-08 2001-05-17 Denso Corp Einstellverfahren für Brennstoffeinspritzsystem
DE50107401D1 (de) * 2000-02-07 2005-10-20 Bosch Gmbh Robert Einspritzdüse
US7341028B2 (en) * 2004-03-15 2008-03-11 Sturman Industries, Inc. Hydraulic valve actuation systems and methods to provide multiple lifts for one or more engine air valves
US7387095B2 (en) * 2004-04-08 2008-06-17 Sturman Industries, Inc. Hydraulic valve actuation systems and methods to provide variable lift for one or more engine air valves
ITRM20110198A1 (it) 2011-04-19 2012-10-20 Alessandro Bove Metodo per l'ottimizzazione della combustione nei motori.
US8794491B2 (en) * 2011-10-28 2014-08-05 Nordson Corporation Dispensing module and method of dispensing with a pneumatic actuator
CA2798870C (en) 2012-12-17 2014-07-22 Westport Power Inc. Air-enriched gaseous fuel direct injection for an internal combustion engine
WO2016034995A1 (en) 2014-09-02 2016-03-10 Titano S.R.L. Engine with magnetization system with selectable activation, preferably adapted to operate at a constant running speed, and method of optimizing the efficiency of said engine
WO2016035001A1 (en) 2014-09-02 2016-03-10 Titano S.R.L. Turbocharged engine fed by magnetized fluids and associated method
WO2016034992A1 (en) 2014-09-02 2016-03-10 Titano S.R.L. Magnetization box for fuel, internal combustion engine with means of magnetization of air and fuel and associated method of magnetization
KR102395299B1 (ko) * 2017-10-24 2022-05-09 현대자동차주식회사 연료 인젝터 및 그의 제어방법

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1230536A (en) * 1915-05-29 1917-06-19 Charles L Stoeltzlen Internal-combustion engine.
US1499794A (en) * 1923-03-29 1924-07-01 Wennerby Arthur Oskar Leonard Combined air valve and fuel pump for internal-combustion engines
US1629633A (en) * 1924-04-30 1927-05-24 Olsen Simon Dokk Means for injecting liquid fuel into internal-combustion engines
US1980460A (en) * 1933-11-08 1934-11-13 Sanford E White Adjustable spray nozzle
US2968443A (en) * 1959-02-20 1961-01-17 Manning Oscar Showerhead
US3043556A (en) * 1960-04-08 1962-07-10 Woodford Mfg Company Means for adjustably regulating the flow of yard hydrants
US3134569A (en) * 1962-02-19 1964-05-26 Sidenbender William Quick closing valve
GB1085237A (en) * 1963-10-05 1967-09-27 Williams & James Engineers Ltd Improvements in or relating to fluid-flow control valves
US3430650A (en) * 1966-02-18 1969-03-04 Hercules Inc Relief valve
US3477693A (en) * 1966-12-16 1969-11-11 Perry S Bezanis Cam operated fluid valve
US3753426A (en) * 1971-04-21 1973-08-21 Physics Int Co Balanced pressure fuel valve
JPS54155319A (en) * 1978-05-29 1979-12-07 Komatsu Ltd Fuel injection controller for internal combustion engine
US4300509A (en) * 1980-10-06 1981-11-17 Ford Motor Company Fuel injection and control systems
JPS633419Y2 (ja) * 1981-04-07 1988-01-27
JPS59148467U (ja) * 1983-03-25 1984-10-04 株式会社ボッシュオートモーティブ　システム 燃料噴射弁装置
JPS60201067A (ja) * 1984-03-26 1985-10-11 Diesel Kiki Co Ltd 分配型燃料噴射ポンプ
JPS60240868A (ja) * 1984-05-14 1985-11-29 Mitsubishi Motors Corp 燃料噴射ポンプの噴射時期調定方法
JPH064059Y2 (ja) * 1984-10-23 1994-02-02 スズキ株式会社 燃料噴射弁取付装置
EP0328602B1 (de) * 1987-08-12 1992-06-17 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Einrichtung zur einbringung des kraftstoffes in den brennraum einer brennkraftmaschine

Also Published As

Publication number Publication date
ATA86589A (de) 2000-07-15
US5048489A (en) 1991-09-17
EP0393017A2 (de) 1990-10-17
JP2571452B2 (ja) 1997-01-16
EP0393017A3 (de) 1991-03-27
JPH02294553A (ja) 1990-12-05
DE59000524D1 (de) 1993-01-14
AT407428B (de) 2001-03-26

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