TR200402050A2 - Dual seating diameter injector with coaxial areal contact - Google Patents

Dual seating diameter injector with coaxial areal contact

Info

Publication number
TR200402050A2
TR200402050A2 TR2004/02050A TR200402050A TR200402050A2 TR 200402050 A2 TR200402050 A2 TR 200402050A2 TR 2004/02050 A TR2004/02050 A TR 2004/02050A TR 200402050 A TR200402050 A TR 200402050A TR 200402050 A2 TR200402050 A2 TR 200402050A2
Authority
TR
Turkey
Prior art keywords
injector
outer needle
coaxial
sectional area
needle
Prior art date
Application number
TR2004/02050A
Other languages
Turkish (tr)
Inventor
Üsküdar Haşi̇man
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to TR2004/02050A priority Critical patent/TR200402050A2/en
Priority to PCT/EP2005/054057 priority patent/WO2006018438A1/en
Priority to EP05779218A priority patent/EP1789672A1/en
Publication of TR200402050A2 publication Critical patent/TR200402050A2/en

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
    • F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal
    • 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
    • F02M45/086—Having more than one injection-valve controlling discharge 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/46—Valves, e.g. injectors, with concentric valve bodies

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

İçten yanmalı motorlarda yanma odasındaki ani basınç artışından dolayı ortaya çıkan gürültüyü indirgemek amacıyla ön püskürtme yapılmaktadır. Ancak geleneksel sistemlerde enjektör memesi deliklerinin kesit alanı ön püskürtme aşamasında da sabit kalmakta olup ön püskürtme esnasında daha düşük bir debinin o sabit kesit alanından gönderilmesi sebebiyle kötü bir yakıt hava karışımı oluşturulmakta ve de neticesinde emisyon değerleri kötüleşmektedir. Bu sebeple enjektör eksenine göre memede bulunan üstüste iki sıra deliğin açılma ve kapanmasını ayrı ayrı kontrol eden bir dış iğne ve iç iğneden oluşan bir sistem kullanılmaktadır.Burada açıklanan buluş enjektör eksenine göre memede bulunan üstüste iki sıra deliğin (2, 3) açılma ve kapanmasını kontrol eden dış iğne (4) ile iç iğneden(5) oluşan sistemde, iğnelerin oturma yüzeylerinin genişliği nedeniyle enjektör memesi delikleri (2, 3) kapalı konumda iken, meme deliklerinde sızdırmazlığın sağlanması için, içi oyuk olan dış iğnenin DEVAMI VAR.Internal combustion engines are pre-sprayed to reduce the noise generated by the sudden increase in pressure in the combustion chamber. However, in conventional systems, the cross-sectional area of the injector nozzle holes remains constant during the pre-spraying stage, which results in a lower fuel flow through the fixed cross-sectional area resulting in a poor fuel-air mixture and consequently the emission values deteriorating. For this reason, a system consisting of an outer needle and an inner needle which separately controls the opening and closing of two rows of superposed holes in the nozzle relative to the injector axis is used. In the system consisting of the outer needle (4) and the inner needle (5), when the injector nozzle holes (2, 3) are in the closed position due to the width of the seating surfaces of the needles, the hollow outer needle is sealed.

TR2004/02050A 2004-08-18 2004-08-18 Dual seating diameter injector with coaxial areal contact TR200402050A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TR2004/02050A TR200402050A2 (en) 2004-08-18 2004-08-18 Dual seating diameter injector with coaxial areal contact
PCT/EP2005/054057 WO2006018438A1 (en) 2004-08-18 2005-08-17 Coaxial areal contact dual-resting diameter injector
EP05779218A EP1789672A1 (en) 2004-08-18 2005-08-17 Coaxial areal contact dual-resting diameter injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2004/02050A TR200402050A2 (en) 2004-08-18 2004-08-18 Dual seating diameter injector with coaxial areal contact

Publications (1)

Publication Number Publication Date
TR200402050A2 true TR200402050A2 (en) 2006-03-21

Family

ID=34975071

Family Applications (1)

Application Number Title Priority Date Filing Date
TR2004/02050A TR200402050A2 (en) 2004-08-18 2004-08-18 Dual seating diameter injector with coaxial areal contact

Country Status (3)

Country Link
EP (1) EP1789672A1 (en)
TR (1) TR200402050A2 (en)
WO (1) WO2006018438A1 (en)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9709678D0 (en) * 1997-05-14 1997-07-02 Lucas Ind Plc Fuel injector
DE10031264A1 (en) * 2000-06-27 2002-01-17 Bosch Gmbh Robert Fuel injection valve for IC engines with even fuel supply to all injection openings even if valve member is misaligned
DE10227277A1 (en) * 2002-06-19 2004-01-08 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE10247958A1 (en) * 2002-10-15 2004-04-29 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
DE10315821A1 (en) * 2002-11-11 2004-05-27 Robert Bosch Gmbh Motor vehicle internal combustion engine injection valve has housing with bore and pressure space defining throttled connection with valve shoulder on needle
DE10259169A1 (en) * 2002-12-18 2004-07-01 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE10300177A1 (en) * 2003-01-08 2004-07-22 Robert Bosch Gmbh Fuel injection device for internal combustion engine has wall section of valve element opposite fuel outlet arranged at least approximately parallel to housing wall near fuel outlet
DE10300179A1 (en) * 2003-01-08 2004-07-22 Robert Bosch Gmbh Fuel injector
DE10305303A1 (en) * 2003-02-10 2004-08-19 Robert Bosch Gmbh Fuel injection device, in particular for internal combustion engines with direct fuel injection
DE10313225A1 (en) * 2003-03-25 2004-10-07 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE10322826A1 (en) * 2003-05-19 2004-12-09 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE10341452A1 (en) * 2003-09-09 2005-03-31 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE10348978A1 (en) * 2003-10-22 2005-05-25 Robert Bosch Gmbh Fuel injection device, in particular for a direct injection internal combustion engine
DE102004002083A1 (en) * 2004-01-15 2005-08-04 Robert Bosch Gmbh Valve for controlling fluids, in particular fuel injection valve
WO2005073546A1 (en) * 2004-02-02 2005-08-11 Siemens Aktiengesellschaft Nozzle member, and valve

Also Published As

Publication number Publication date
WO2006018438A1 (en) 2006-02-23
EP1789672A1 (en) 2007-05-30

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