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GB2016592A - Fuel injection nozzle outlet orifice configurations - Google Patents

Fuel injection nozzle outlet orifice configurations

Info

Publication number
GB2016592A
GB2016592A GB7847047A GB7847047A GB2016592A GB 2016592 A GB2016592 A GB 2016592A GB 7847047 A GB7847047 A GB 7847047A GB 7847047 A GB7847047 A GB 7847047A GB 2016592 A GB2016592 A GB 2016592A
Authority
GB
United Kingdom
Prior art keywords
fuel injection
injection nozzle
outlet
recess
outlet orifice
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.)
Granted
Application number
GB7847047A
Other versions
GB2016592B (en
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.)
ZSCHOPAU MOTORRAD VEB
Original Assignee
ZSCHOPAU MOTORRAD VEB
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 ZSCHOPAU MOTORRAD VEB filed Critical ZSCHOPAU MOTORRAD VEB
Publication of GB2016592A publication Critical patent/GB2016592A/en
Application granted granted Critical
Publication of GB2016592B publication Critical patent/GB2016592B/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
    • 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
    • F02M61/184—Discharge orifices having non circular sections
    • 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
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • 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
    • F02M61/1846—Dimensional characteristics of discharge orifices

Landscapes

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

Abstract

A fuel injection nozzle 1 has a fuel cavity 2 controlled by a non-return valve 3. The cavity 2 has a cylindrical insert 6 with spiral grooves 7 leading to an outlet bore 9 which has a divergent recess 12 extending towards the outlet end 11 thereby providing an outlet orifice of asymmetrical construction. Recess 12 may have any of the cross- sections shown in Fig. 2, or may be keyhole or tear-drop shaped in cross- section. Alternatively, a cylindrical recess is provided at the upstream end 10 of the outlet bore, from which two separate parallel-sided bores follow divergent paths to the outlet end 11 of the nozzle. <IMAGE>
GB7847047A 1978-03-16 1978-12-04 Fuel injection nozzle outlet orifice configurations Expired GB2016592B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20422278A DD134976B1 (en) 1978-03-16 1978-03-16 INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES

Publications (2)

Publication Number Publication Date
GB2016592A true GB2016592A (en) 1979-09-26
GB2016592B GB2016592B (en) 1982-12-22

Family

ID=5511851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7847047A Expired GB2016592B (en) 1978-03-16 1978-12-04 Fuel injection nozzle outlet orifice configurations

Country Status (4)

Country Link
DD (1) DD134976B1 (en)
DE (1) DE2845639A1 (en)
FR (1) FR2420038A1 (en)
GB (1) GB2016592B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125888A (en) * 1982-08-26 1984-03-14 Bosch Gmbh Robert I.C. Engine fuel injection valve
WO1989000244A1 (en) * 1987-07-01 1989-01-12 Siemens Aktiengesellschaft Injection valve
EP1293725A1 (en) * 2001-09-14 2003-03-19 United Technologies Corporation Fuel nozzle

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3229716C2 (en) * 1982-08-10 1995-01-26 Bosch Gmbh Robert Fuel injector
DE3415905A1 (en) * 1984-04-28 1985-11-07 Daimler-Benz Ag, 7000 Stuttgart Hole type nozzle for internal combustion engine with direct injection
JP2619088B2 (en) * 1989-12-28 1997-06-11 株式会社日立製作所 Fuel injection device
WO1997033086A1 (en) * 1996-03-04 1997-09-12 Jerzy Chomiak Orifice shape of a fuel injector
US6676048B1 (en) * 1998-06-04 2004-01-13 Siemens Aktiengesellschaft Fuel injector
JP4172270B2 (en) 2000-07-05 2008-10-29 オープン ストック カンパニー ケミカル オートマティック デザイン ビュロウ （シーエーディービィ） Coaxial jet injection device
DE102008051365B4 (en) 2008-10-15 2010-07-01 L'orange Gmbh Fuel injection valve for internal combustion engines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186216A (en) * 1935-02-04 1940-01-09 John W Smith Apparatus for spraying liquid fuel into a combustion chamber having the required turbulence
BE475438A (en) * 1946-08-28
FR1056529A (en) * 1951-07-20 1954-03-01 Injection nozzle for internal combustion engines
DE2750928A1 (en) * 1977-11-15 1979-05-17 Maschf Augsburg Nuernberg Ag FUEL INJECTION NOZZLE FOR COMBUSTION MACHINES

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125888A (en) * 1982-08-26 1984-03-14 Bosch Gmbh Robert I.C. Engine fuel injection valve
WO1989000244A1 (en) * 1987-07-01 1989-01-12 Siemens Aktiengesellschaft Injection valve
US4986478A (en) * 1987-07-01 1991-01-22 Siemens Aktiengesellschaft Injection valve
EP1293725A1 (en) * 2001-09-14 2003-03-19 United Technologies Corporation Fuel nozzle
US6625971B2 (en) 2001-09-14 2003-09-30 United Technologies Corporation Fuel nozzle producing skewed spray pattern
SG111964A1 (en) * 2001-09-14 2005-06-29 United Technologies Corp Fuel nozzle producing skewed spray pattern

Also Published As

Publication number Publication date
GB2016592B (en) 1982-12-22
FR2420038A1 (en) 1979-10-12
DD134976B1 (en) 1980-12-24
DE2845639A1 (en) 1979-09-20
DD134976A1 (en) 1979-04-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee