BR0205438A - Fuel injector with spray needle damping - Google Patents

Fuel injector with spray needle damping

Info

Publication number
BR0205438A
BR0205438A BR0205438-8A BR0205438A BR0205438A BR 0205438 A BR0205438 A BR 0205438A BR 0205438 A BR0205438 A BR 0205438A BR 0205438 A BR0205438 A BR 0205438A
Authority
BR
Brazil
Prior art keywords
spray needle
spray
fuel injector
injector
needle
Prior art date
Application number
BR0205438-8A
Other languages
Portuguese (pt)
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of BR0205438A publication Critical patent/BR0205438A/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
    • 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
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • 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
    • F02M61/042—The valves being provided with fuel passages

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

"INJETOR DE COMBUSTìVEL COM AMORTECIMENTO DE AGULHA DE PULVERIZADOR". A invenção refere-se a um injetor para injeção de combustível nas câmaras de combustão de um motor de combustão interna. Está previsto um corpo de injetor (20) com uma câmara de controle (4), em que está alojado um elemento de mola (45). Uma agulha de pulverizador (6) está envolta por uma câmara de pulverizador (25), que é ativada com combustível que se encontra sob alta pressão por meio de um conduto de alta pressão (21). Na região de topo (34, 38) da agulha de pulverizador (6) estão executadas arestas de controle (28), que quando do movimento de curso (29, 31) da agulha de pulverizador (6) na câmara de controle (4) determinam uma fenda de fuga (33)."SPRAYING NEEDLE FUEL INJECTOR". The invention relates to an injector for fuel injection in the combustion chambers of an internal combustion engine. An injector body (20) is provided with a control chamber (4) in which a spring element (45) is housed. A spray needle (6) is surrounded by a spray chamber (25) which is activated with fuel that is under high pressure via a high pressure conduit (21). In the top region (34, 38) of the spray needle (6) control edges (28) are executed, which when the stroke (29, 31) of the spray needle (6) in the control chamber (4) is made. determine an escape slot (33).

BR0205438-8A 2001-05-30 2002-05-25 Fuel injector with spray needle damping BR0205438A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10126370A DE10126370A1 (en) 2001-05-30 2001-05-30 Fuel injector with nozzle needle damping
PCT/DE2002/001931 WO2002097258A1 (en) 2001-05-30 2002-05-25 Fuel injector comprising a damped injector needle

Publications (1)

Publication Number Publication Date
BR0205438A true BR0205438A (en) 2003-07-01

Family

ID=7686663

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0205438-8A BR0205438A (en) 2001-05-30 2002-05-25 Fuel injector with spray needle damping

Country Status (5)

Country Link
EP (1) EP1395745B1 (en)
JP (1) JP2004519622A (en)
BR (1) BR0205438A (en)
DE (2) DE10126370A1 (en)
WO (1) WO2002097258A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060196974A1 (en) * 2005-03-01 2006-09-07 Caterpillar Inc. Fuel injector having a gradually restricted drain passageway
ATE546636T1 (en) * 2009-08-26 2012-03-15 Delphi Tech Holding Sarl FUEL INJECTOR
DE102013006419A1 (en) * 2013-04-15 2014-10-16 L'orange Gmbh Kraftstoffiniektor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1250900B (en) * 1991-12-24 1995-04-21 Elasis Sistema Ricerca Fiat ELECTROMAGNETICALLY OPERATED FUEL INJECTION VALVE.
GB9508623D0 (en) * 1995-04-28 1995-06-14 Lucas Ind Plc "Fuel injection nozzle"
USRE37633E1 (en) * 1995-08-29 2002-04-09 Isuzu Motors Limited Accumulating fuel injection apparatus
JPH1182221A (en) * 1997-09-05 1999-03-26 Denso Corp Fuel injection system for internal combustion engine
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
DE19930832A1 (en) 1999-07-03 2001-01-11 Bosch Gmbh Robert Fuel injector

Also Published As

Publication number Publication date
EP1395745B1 (en) 2005-02-16
DE10126370A1 (en) 2002-12-19
DE50202284D1 (en) 2005-03-24
JP2004519622A (en) 2004-07-02
EP1395745A1 (en) 2004-03-10
WO2002097258A1 (en) 2002-12-05

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired