US2927737A - Fuel injection valves - Google Patents

Fuel injection valves Download PDF

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Publication number
US2927737A
US2927737A US34582653A US2927737A US 2927737 A US2927737 A US 2927737A US 34582653 A US34582653 A US 34582653A US 2927737 A US2927737 A US 2927737A
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United States
Prior art keywords
valve
needle
fuel
conical
fuel injection
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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
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Inventor
Zeuch Werner
Voit Willy
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of US2927737A publication Critical patent/US2927737A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/38—Needle valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7835—Valve seating in direction of flow

Definitions

  • Figures 1-4 each show a longitudinal section through the part of an injection valve including the valve seat.
  • Fig. shows a longitudinal section through a fuel injection valve for an internal combustion engine.
  • a nozzle needle 2 In the body 1 of an injection nozzle, a nozzle needle 2 is tightly guided, on which a closing spring 5 acts through a peg 6 in the known manner.
  • the spring 5 is accommodated in a nozzle holder 7 on which the nozzle body 1 is secured by means of a screw cap 8.
  • the fuel flows through a channel 9 in the nozzle holder and a channel 10 in the nozzle body 1 towards an annular space 11 in the nozzle body and into a circular space 3 between the valve body 1 and the needle 2 and is ejected when the valve is opened through nozzle openings 4.
  • the fuel pressure engages on an annular shoulder of the nozzle needle, the dimensions of which are determined by the diameter D of the nozzle needle and the diameter of the valve seat.
  • the conical angle in the valve body disposed on the fuel supply side of the valve seat is indicated by a and the corresponding conical angle of the valve needle by )3.
  • the difference of these two angles (a-B) amounts in all'the examples to 10.
  • the conical angle on the fuel discharge side of the needle is indicated by 'y and the corresponding angle in the valve body by 6.
  • the needle seat surface in the examples as shown in Fig. 1 and 3, geometrically considered, is only a line which, however, owing to the high specific pressure and a small remaining'change of form at this point, becomes in fact a very narrow annular surface.
  • the geometrical seating surface amounts to a narrow conical annular surface, the axial height h of which is approximately 0.2-0.3 mm.
  • the angular difference -6) amounting to 2 to 4 is therefore somewhat larger than the hitherto usual of 0.5 to l.S.
  • injection valves whose injection apertures are at the nozzle holes 4.
  • the features of the invention may, however, also be used with the same advantage with other types of injection valves, for example those whose injection opening is an annular slit 7 which is formed in known manner by an injection pin on the end of the nozzle needle and an outlet in the valve body into which the injection pin extends.
  • a fuel injection valve for an internal combustion engine comprising a valve body, and a valve needle positioned in the valve body and controlled by the fuel pressure, the valve needle and the valve body having conical surfaces which are convergent in the direction of flow of the fuel and which control the passage of fuel past the needle valve to an outlet in the valve body, said surfaces cooperatively seating together at areas along their lengths, the conical angles of such surfaces differing in front of and also behind the area of seating engagement of the needle in the valve body, by a maximum of no more than 20 on the. fuel supply side of the area of seating and by 0.5 to 4 on the fuel discharge side of the area of seating.
  • a fuel injection valve as claimed'in claim l wherein the conical angles'of the valve body on either side of the area of seating are equal.
  • a fuel injection valve as claimed in claim 1 wherein the conical angles of the valve needle on either side of 'on, these surfaces being convergent in the direction of flow, the conical angles of these surfaces differing in front of and also behind the areas of seating engagement of needle on the valve body by substantially 10' on the fuel supply side of the area of seating, and by 05 to 2 on the, fuel discharge side of the area of seating.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

March 8, 1960 w. ZEUCH ETAL 2,927,737
FUEL. INJECTION VALVES Filed March 31, 1953 2 Sheets-Sheet l I 5 or r 2 Sheets-Sheet 2 4'5 14%: 22M. wmyw I Maren 8, 1960 w. ZEUCH ET.AL
FUEL INJECTION VALVES Filed March 31, 1953 Unite States. ate D FUEL INJECTION VALVES Werner Zeuch, Fellbach, and Willy Voit, Bad Cannstatt,
Germany, assignors to Robert Bosch G.m.b.H., Stuttgart, Germany Application March 31, 1953, Serial No. 345,826
Claims priority, application Germany April 12, 1952 7 Claims. (Cl. 239-533) ability of such injection valves by reducing or avoiding corrosion which occurs at the conical sealing surface of the valve needle and frequently limits the life of the injection valve. 7
This is obtained in accordance with this invention by the feature that the conical angles of these surfaces, so far as they are disposed in front of and behind the valve seat, differ before the valve seat, that is to say on the fuel supply side of the seat, at the most to 20 preferably 10 and behind the valve seat, that is to say on the fuel discharge side of the seat, to at least 0.5
In the drawing, four forms of construction are illustrated by way of example.
Figures 1-4 each show a longitudinal section through the part of an injection valve including the valve seat.
Fig. shows a longitudinal section through a fuel injection valve for an internal combustion engine.
In the body 1 of an injection nozzle, a nozzle needle 2 is tightly guided, on which a closing spring 5 acts through a peg 6 in the known manner. The spring 5 is accommodated in a nozzle holder 7 on which the nozzle body 1 is secured by means of a screw cap 8. The fuel flows through a channel 9 in the nozzle holder and a channel 10 in the nozzle body 1 towards an annular space 11 in the nozzle body and into a circular space 3 between the valve body 1 and the needle 2 and is ejected when the valve is opened through nozzle openings 4. When the nozzle needle is closed, the fuel pressure engages on an annular shoulder of the nozzle needle, the dimensions of which are determined by the diameter D of the nozzle needle and the diameter of the valve seat. Furthermore, in all the examples the conical angle in the valve body disposed on the fuel supply side of the valve seat is indicated by a and the corresponding conical angle of the valve needle by )3. The difference of these two angles (a-B) amounts in all'the examples to 10. The conical angle on the fuel discharge side of the needle is indicated by 'y and the corresponding angle in the valve body by 6.
In the example as shown in Fig. 2, there is in the valve body apart from the said angles, another conical surface having an angle e, which intersects the conical angle a at a clearance a from the needle seat. The clearance a is at least half a millimetre in size. The angle 6 is 3 larger than the angle a.
The needle seat surface in the examples as shown in Fig. 1 and 3, geometrically considered, is only a line which, however, owing to the high specific pressure and a small remaining'change of form at this point, becomes in fact a very narrow annular surface. i
In the examples shown in Figs. 2 and 4, the geometrical seating surface amounts to a narrow conical annular surface, the axial height h of which is approximately 0.2-0.3 mm. The angular difference -6) amounting to 2 to 4 is therefore somewhat larger than the hitherto usual of 0.5 to l.S.
In the examples according to Figs. 1 and 2 the angles a and 6 are equal, whilst the angles 3 and 'y dififer. In the examples as shown in Figs. 3 and 4 the angles a and 6 differ while the angles 5 and 'y are equal.
All the examples show injection valves whose injection apertures are at the nozzle holes 4. The features of the invention may, however, also be used with the same advantage with other types of injection valves, for example those whose injection opening is an annular slit 7 which is formed in known manner by an injection pin on the end of the nozzle needle and an outlet in the valve body into which the injection pin extends.
We claim:
1. A fuel injection valve for an internal combustion engine, comprising a valve body, and a valve needle positioned in the valve body and controlled by the fuel pressure, the valve needle and the valve body having conical surfaces which are convergent in the direction of flow of the fuel and which control the passage of fuel past the needle valve to an outlet in the valve body, said surfaces cooperatively seating together at areas along their lengths, the conical angles of such surfaces differing in front of and also behind the area of seating engagement of the needle in the valve body, by a maximum of no more than 20 on the. fuel supply side of the area of seating and by 0.5 to 4 on the fuel discharge side of the area of seating.
1 2. A fuel injection valve as claimed'in claim l, wherein the conical angles'of the valve body on either side of the area of seating are equal.
3. A fuel injection valve as claimed in claim 1, wherein the conical angles of the valve needle on either side of 'on, these surfaces being convergent in the direction of flow, the conical angles of these surfaces differing in front of and also behind the areas of seating engagement of needle on the valve body by substantially 10' on the fuel supply side of the area of seating, and by 05 to 2 on the, fuel discharge side of the area of seating.
6. A fuel injection valve as claimed in claim 1, wherein the seating contact of the valve needle with the valve body is over an area of width between 0.2 and 0.3 mm. measured axially of the needle valve.
7. A fuel injection valve as claimedin claim 1, whereg in a further conical surface is provided on the valve body Eatented Mar. 8, .1960
than the conical angle of the first mentioned conical sur' 1,863,712 Byfield -1. June 21, 1932 face on the valve body. 1,984,592 MacLean Dec. 18, 1934 2,051,509 Wile Aug. 18, 1936 References Cited in the file of thxs patent 2,137,473 Making N 22, 193 UNITED STATES PATENTS 5 1 5 Bryant P 1942 1,693,326 Shafier Ian. 15, 1929 FOREIGN.PATENTS 1,831,713 Knowlton Nov. 10, 1931 459,662 Great Britain of 1937
US34582653 1952-04-12 1953-03-31 Fuel injection valves Expired - Lifetime US2927737A (en)

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Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071153A (en) * 1959-07-17 1963-01-01 Stewart Warner Corp Valves
US3090596A (en) * 1960-12-16 1963-05-21 Vernay Laboratories Rubber tipped needle valve
US3207437A (en) * 1963-02-28 1965-09-21 Gen Motors Corp Tapered throat section valve thermostat
DE1259161B (en) * 1962-08-06 1968-01-18 Varian Associates High vacuum valve
US3415427A (en) * 1966-08-30 1968-12-10 United Steel Companies Ltd Nozzle and stopper assemblies for teeming liquid metal
US3457105A (en) * 1966-11-10 1969-07-22 Cadillac Overall Supply Co Rugs having backings of nitrile latices
US3459226A (en) * 1966-12-22 1969-08-05 Bendix Corp Fluid pressure control valve
DE1425683B1 (en) * 1962-04-07 1970-01-15 Hans Richter Thermoelastically controlled control valve, especially condensate drain
US3570541A (en) * 1968-11-29 1971-03-16 Caterpillar Tractor Co Three-way directional control valve
DE2102252A1 (en) * 1970-01-19 1971-09-02 Graco Ine , Minneapolis, Minn (V St A) Air-free spray gun
US3658295A (en) * 1970-02-04 1972-04-25 Nasa Valve seat
US3787029A (en) * 1970-09-29 1974-01-22 Gen Motors Corp Open center control valve
US3980237A (en) * 1975-11-17 1976-09-14 Allis-Chalmers Corporation Differential valve in fuel injection nozzle
US4057190A (en) * 1976-06-17 1977-11-08 Bendix Corporation Fuel break-up disc for injection valve
FR2360814A1 (en) * 1976-08-06 1978-03-03 Flow Ind Inc HIGH PRESSURE FLUID VALVE
US4106702A (en) * 1977-04-19 1978-08-15 Caterpillar Tractor Co. Fuel injection nozzle tip with low volume tapered sac
US4153205A (en) * 1977-10-19 1979-05-08 Allis-Chalmers Corporation Short seat fuel injection nozzle valve
WO1981001592A1 (en) * 1979-11-30 1981-06-11 Caterpillar Tractor Co Fuel injection nozzle
US4275844A (en) * 1979-11-30 1981-06-30 Caterpillar Tractor Co. Fuel injection nozzle
US4393017A (en) * 1981-06-18 1983-07-12 The B. F. Goodrich Company Apparatus and method for making foamed resin products
US4417694A (en) * 1980-10-22 1983-11-29 The Bendix Corporation Injector valve with contoured valve seat and needle valve interface
US4497615A (en) * 1983-07-25 1985-02-05 Copeland Corporation Scroll-type machine
US4523719A (en) * 1982-10-13 1985-06-18 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
US4537359A (en) * 1982-10-20 1985-08-27 Lucas Industries, P.L.C. Fuel injection nozzles
EP0180784A2 (en) * 1984-10-31 1986-05-14 Rosenmund AG Valve for processing plant
DE3541059A1 (en) * 1985-05-03 1986-11-06 Gagarin Höerömü Vállalat, Visonta Control valve for thermal power stations
US4639568A (en) * 1984-07-13 1987-01-27 Ex-Cell-O Corporation Apparatus and method for finishing fuel injector spray tips using EDM
US4804143A (en) * 1984-04-05 1989-02-14 Lucas Industries Public Limited Company Fuel injection nozzle unit
WO1989003935A1 (en) * 1987-10-30 1989-05-05 Nauchno-Proizvodstvennoe Obiedinenie Po Toplivnoi Pulverizer of diesel nozzle
US4934599A (en) * 1987-10-07 1990-06-19 Honda Giken Kogyo Kabushiki Kaisha Fuel injection nozzle for two-stage fuel injection
US4967959A (en) * 1989-06-22 1990-11-06 Siemens-Bendix Automotive Electronics L.P. Fuel injector having flat seat and needle fuel seal
EP0404407A1 (en) * 1989-06-23 1990-12-27 Lucas Industries Public Limited Company Fuel injection nozzle
US5005803A (en) * 1988-12-29 1991-04-09 Applied Power Inc. High response, compact solenoid two-way valve
US5011113A (en) * 1988-12-29 1991-04-30 Applied Power Inc. Fluid control valve
US5056556A (en) * 1990-07-24 1991-10-15 Kabushiki Kaisha Fujikoshi Solenoid valve
US5174328A (en) * 1989-03-16 1992-12-29 Kabushiki Kaisha Komatsu Seisakusho Pressure control valve
US5300259A (en) * 1991-05-20 1994-04-05 Shinichi Tashiro Carburetor and fuel feeding system having the same
EP0615064A1 (en) * 1993-03-08 1994-09-14 Ganser-Hydromag Injection valve control system for internal combustion engines
US5383607A (en) * 1991-12-19 1995-01-24 Robert Bosch Gmbh Electromagnetically actuated injection valve
US5924607A (en) * 1996-02-16 1999-07-20 Nireco Corporation Hot melt applicator and nozzle used therefor
DE19802447A1 (en) * 1998-01-23 1999-08-05 Baelz Gmbh Helmut Seat valve with integral valve seat got hot water and steam systems
US6076750A (en) * 1995-10-27 2000-06-20 Upm-Kymmene Oyj Device for filling packages
WO2000065225A1 (en) * 1999-04-27 2000-11-02 Siemens Automotive Corporation Method of manufacturing a fuel injector seat
US6257506B1 (en) * 1997-12-11 2001-07-10 Robert Bosch Gmbh Fuel injector for auto-ignition internal combustion engines
US6375154B1 (en) * 1999-04-19 2002-04-23 Tiefenbach Bergbautechnik Gmbh Seat and holding valve
US6666388B2 (en) * 2000-03-21 2003-12-23 C.R.F. Societa Consortile Per Azioni Plug pin for an internal combustion engine fuel injector nozzle
US6695230B1 (en) * 1999-07-08 2004-02-24 Robert Bosch Gmbh Blind bore injection nozzle for internal combustion engines, with a rounded transition between the blind bore and the nozzle needle seat
US20040056118A1 (en) * 2001-05-10 2004-03-25 Patrick Mattes Valve with radial recesses
US20040074994A1 (en) * 2002-10-16 2004-04-22 Nordson Corporation Interchangeable nozzle for a dispensing module
US20050103898A1 (en) * 2003-11-14 2005-05-19 Deluca Frank Diesel injection nozzle
WO2005052358A1 (en) * 2003-11-25 2005-06-09 Robert Bosch Gmbh Valve, in particular for a high-pressure pump of a fuel-injection device for an internal combustion engine
US6920690B1 (en) 1999-04-27 2005-07-26 Siemens Vdo Automotive Corp. Method of manufacturing a fuel injector seat
US20060032947A1 (en) * 2002-10-22 2006-02-16 Friedrich Boecking Fuel injection valve for internal combustion engines
US7128280B1 (en) * 1999-09-04 2006-10-31 Robert Bosch Gmbh Injection nozzle for internal combustion engines, which has an annular groove in the nozzle needle
US20070120087A1 (en) * 2003-12-17 2007-05-31 Wms Gaming Inc. Valve body with multiconical geometry at the valve seat
US20110180634A1 (en) * 2008-08-27 2011-07-28 Tobias Sander Nozzle body, nozzle assembly and fuel injector, and method for producing a nozzle body
US20110297868A1 (en) * 2010-06-02 2011-12-08 Toshinari Nishimura Steam valve
US20120153053A1 (en) * 2009-08-28 2012-06-21 Robert Bosch Gmbh Fuel injection valve
RU2506484C2 (en) * 2008-04-21 2014-02-10 СТИГЕН Спулка з ограничоно одповедзяльносьця Check valve
EP3026312A1 (en) * 2013-07-23 2016-06-01 KYB Corporation Control valve
US20180100477A1 (en) * 2012-04-16 2018-04-12 Cummins Intellectual Property, Inc. Fuel injector

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GB459662A (en) *
US1698826A (en) * 1926-09-13 1929-01-15 William D Shaffer Flow nipple
US1831713A (en) * 1931-04-20 1931-11-10 Phillips Petroleum Co Flow head with adjustable flow bean
US1863712A (en) * 1930-07-14 1932-06-21 Albert H Byfield Heating system
US1984592A (en) * 1930-12-06 1934-12-18 Pittsburgh Equitable Meter Co Pressure regulator for gas refrigerator pilot lights
US2051509A (en) * 1933-10-21 1936-08-18 Detroit Lubricator Co Valve
US2137473A (en) * 1936-12-02 1938-11-22 Ruston & Hornsby Ltd Fuel injector or atomizer for internal combustion engines
US2297535A (en) * 1941-04-11 1942-09-29 Westinghouse Electric & Mfg Co Governing valve for prime movers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB459662A (en) *
US1698826A (en) * 1926-09-13 1929-01-15 William D Shaffer Flow nipple
US1863712A (en) * 1930-07-14 1932-06-21 Albert H Byfield Heating system
US1984592A (en) * 1930-12-06 1934-12-18 Pittsburgh Equitable Meter Co Pressure regulator for gas refrigerator pilot lights
US1831713A (en) * 1931-04-20 1931-11-10 Phillips Petroleum Co Flow head with adjustable flow bean
US2051509A (en) * 1933-10-21 1936-08-18 Detroit Lubricator Co Valve
US2137473A (en) * 1936-12-02 1938-11-22 Ruston & Hornsby Ltd Fuel injector or atomizer for internal combustion engines
US2297535A (en) * 1941-04-11 1942-09-29 Westinghouse Electric & Mfg Co Governing valve for prime movers

Cited By (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071153A (en) * 1959-07-17 1963-01-01 Stewart Warner Corp Valves
US3090596A (en) * 1960-12-16 1963-05-21 Vernay Laboratories Rubber tipped needle valve
DE1425683B1 (en) * 1962-04-07 1970-01-15 Hans Richter Thermoelastically controlled control valve, especially condensate drain
DE1259161B (en) * 1962-08-06 1968-01-18 Varian Associates High vacuum valve
US3207437A (en) * 1963-02-28 1965-09-21 Gen Motors Corp Tapered throat section valve thermostat
US3415427A (en) * 1966-08-30 1968-12-10 United Steel Companies Ltd Nozzle and stopper assemblies for teeming liquid metal
US3457105A (en) * 1966-11-10 1969-07-22 Cadillac Overall Supply Co Rugs having backings of nitrile latices
US3459226A (en) * 1966-12-22 1969-08-05 Bendix Corp Fluid pressure control valve
US3570541A (en) * 1968-11-29 1971-03-16 Caterpillar Tractor Co Three-way directional control valve
DE2102252A1 (en) * 1970-01-19 1971-09-02 Graco Ine , Minneapolis, Minn (V St A) Air-free spray gun
US3658295A (en) * 1970-02-04 1972-04-25 Nasa Valve seat
US3787029A (en) * 1970-09-29 1974-01-22 Gen Motors Corp Open center control valve
US3980237A (en) * 1975-11-17 1976-09-14 Allis-Chalmers Corporation Differential valve in fuel injection nozzle
US4057190A (en) * 1976-06-17 1977-11-08 Bendix Corporation Fuel break-up disc for injection valve
FR2360814A1 (en) * 1976-08-06 1978-03-03 Flow Ind Inc HIGH PRESSURE FLUID VALVE
US4106702A (en) * 1977-04-19 1978-08-15 Caterpillar Tractor Co. Fuel injection nozzle tip with low volume tapered sac
US4153205A (en) * 1977-10-19 1979-05-08 Allis-Chalmers Corporation Short seat fuel injection nozzle valve
US4275844A (en) * 1979-11-30 1981-06-30 Caterpillar Tractor Co. Fuel injection nozzle
WO1981001592A1 (en) * 1979-11-30 1981-06-11 Caterpillar Tractor Co Fuel injection nozzle
US4417694A (en) * 1980-10-22 1983-11-29 The Bendix Corporation Injector valve with contoured valve seat and needle valve interface
US4393017A (en) * 1981-06-18 1983-07-12 The B. F. Goodrich Company Apparatus and method for making foamed resin products
US4523719A (en) * 1982-10-13 1985-06-18 Robert Bosch Gmbh Fuel injection nozzle for internal combustion engines
US4537359A (en) * 1982-10-20 1985-08-27 Lucas Industries, P.L.C. Fuel injection nozzles
US4497615A (en) * 1983-07-25 1985-02-05 Copeland Corporation Scroll-type machine
US4804143A (en) * 1984-04-05 1989-02-14 Lucas Industries Public Limited Company Fuel injection nozzle unit
US4639568A (en) * 1984-07-13 1987-01-27 Ex-Cell-O Corporation Apparatus and method for finishing fuel injector spray tips using EDM
EP0180784A3 (en) * 1984-10-31 1987-07-01 Rosenmund AG Valve for processing plant
EP0180784A2 (en) * 1984-10-31 1986-05-14 Rosenmund AG Valve for processing plant
DE3541059A1 (en) * 1985-05-03 1986-11-06 Gagarin Höerömü Vállalat, Visonta Control valve for thermal power stations
US4934599A (en) * 1987-10-07 1990-06-19 Honda Giken Kogyo Kabushiki Kaisha Fuel injection nozzle for two-stage fuel injection
WO1989003935A1 (en) * 1987-10-30 1989-05-05 Nauchno-Proizvodstvennoe Obiedinenie Po Toplivnoi Pulverizer of diesel nozzle
US5033679A (en) * 1987-10-30 1991-07-23 Golev Vladislav I Injector nozzle for a diesel engine
US5011113A (en) * 1988-12-29 1991-04-30 Applied Power Inc. Fluid control valve
US5005803A (en) * 1988-12-29 1991-04-09 Applied Power Inc. High response, compact solenoid two-way valve
US5174328A (en) * 1989-03-16 1992-12-29 Kabushiki Kaisha Komatsu Seisakusho Pressure control valve
US4967959A (en) * 1989-06-22 1990-11-06 Siemens-Bendix Automotive Electronics L.P. Fuel injector having flat seat and needle fuel seal
EP0404407A1 (en) * 1989-06-23 1990-12-27 Lucas Industries Public Limited Company Fuel injection nozzle
US5056556A (en) * 1990-07-24 1991-10-15 Kabushiki Kaisha Fujikoshi Solenoid valve
US5300259A (en) * 1991-05-20 1994-04-05 Shinichi Tashiro Carburetor and fuel feeding system having the same
US5383607A (en) * 1991-12-19 1995-01-24 Robert Bosch Gmbh Electromagnetically actuated injection valve
CH686845A5 (en) * 1993-03-08 1996-07-15 Ganser Hydromag Control arrangement for an injection valve for internal combustion engines.
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