DE10346575A1 - Pressure intensifier for fuel injectors with centered multi-part intensifier body - Google Patents

Pressure intensifier for fuel injectors with centered multi-part intensifier body Download PDF

Info

Publication number
DE10346575A1
DE10346575A1 DE2003146575 DE10346575A DE10346575A1 DE 10346575 A1 DE10346575 A1 DE 10346575A1 DE 2003146575 DE2003146575 DE 2003146575 DE 10346575 A DE10346575 A DE 10346575A DE 10346575 A1 DE10346575 A1 DE 10346575A1
Authority
DE
Germany
Prior art keywords
intensifier
pressure
fuel injectors
piston
centered multi
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.)
Withdrawn
Application number
DE2003146575
Other languages
German (de)
Inventor
Christian Grimminger
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.)
Robert Bosch GmbH
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 DE2003146575 priority Critical patent/DE10346575A1/en
Priority to EP04103877A priority patent/EP1522720A3/en
Publication of DE10346575A1 publication Critical patent/DE10346575A1/en
Withdrawn legal-status Critical Current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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • F02M57/026—Construction details of pressure amplifiers, e.g. fuel passages or check valves arranged in the intensifier piston or head, particular diameter relationships, stop members, arrangement of ports or conduits
    • 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
    • F02M61/167—Means for compensating clearance or thermal expansion

Landscapes

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

Abstract

Die Erfindung bezieht sich auf einen Druckübersetzer (1) für einen Kraftstoffinjektor. Der Druckübersetzer (1) weist einen Differenzdruckraum (4), einen Kompressionsraum (5) und einen Kolben (3) auf. Der Kolben (3) ist durch Druckänderung im Differenzdruckraum (4) betätigbar. Der Differenzdruckraum (4) ist über eine Verbindungsleitung (9, 27) mit einer Steuerleitung (8) verbunden. Der Kolben (3) zentriert Gehäuseteile (18, 19) des Druckübersetzers (1) relativ zueinander.The invention relates to a pressure booster (1) for a fuel injector. The pressure booster (1) has a differential pressure chamber (4), a compression chamber (5) and a piston (3). The piston (3) can be actuated by changing the pressure in the differential pressure chamber (4). The differential pressure chamber (4) is connected via a connecting line (9, 27) to a control line (8). The piston (3) centers housing parts (18, 19) of the pressure booster (1) relative to each other.

DE2003146575 2003-10-07 2003-10-07 Pressure intensifier for fuel injectors with centered multi-part intensifier body Withdrawn DE10346575A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2003146575 DE10346575A1 (en) 2003-10-07 2003-10-07 Pressure intensifier for fuel injectors with centered multi-part intensifier body
EP04103877A EP1522720A3 (en) 2003-10-07 2004-08-12 Pressure amplifier for fuel injector with centered multiple housing parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003146575 DE10346575A1 (en) 2003-10-07 2003-10-07 Pressure intensifier for fuel injectors with centered multi-part intensifier body

Publications (1)

Publication Number Publication Date
DE10346575A1 true DE10346575A1 (en) 2005-05-04

Family

ID=34306308

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003146575 Withdrawn DE10346575A1 (en) 2003-10-07 2003-10-07 Pressure intensifier for fuel injectors with centered multi-part intensifier body

Country Status (2)

Country Link
EP (1) EP1522720A3 (en)
DE (1) DE10346575A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161770A (en) * 1994-06-06 2000-12-19 Sturman; Oded E. Hydraulically driven springless fuel injector
US5865156A (en) * 1997-12-03 1999-02-02 Caterpillar Inc. Actuator which uses fluctuating pressure from an oil pump that powers a hydraulically actuated fuel injector
US6408829B1 (en) * 1999-04-19 2002-06-25 International Engine Intellectual Property Company, L.L.C. Fuel pressure delay cylinder
DE10355041A1 (en) * 2003-11-25 2005-06-23 Robert Bosch Gmbh Pressure intensifier with guide insert for a fuel injector

Also Published As

Publication number Publication date
EP1522720A2 (en) 2005-04-13
EP1522720A3 (en) 2008-04-30

Similar Documents

Publication Publication Date Title
ATE403082T1 (en) FUEL INJECTOR WITH DIRECT NEEDLE CONTROL FOR AN INTERNAL COMBUSTION ENGINE
WO2007084243A3 (en) Fuel injector with selectable intensification
GB752149A (en) Improvements in or relating to fuel injectors for internal combustion engines
EP0915254A3 (en) Injector controlled by a magnetic valve for an accumulator system of a multicylinder internal combustion engine
DE10346575A1 (en) Pressure intensifier for fuel injectors with centered multi-part intensifier body
DE102008041594A1 (en) Fuel high pressure pump i.e. plug-in pump, for internal combustion engine, has cylindrical pump housing, piston, conveyor chamber, inlet valve and outlet valve, where outlet valve and piston longitudinal axis are parallel to each other
EP1927748A3 (en) Fuel injector
ATE410591T1 (en) FUEL INJECTION SYSTEM
EP1243787A3 (en) Common rail fuel injection apparatus and control method thereof
EP1314873A3 (en) Mechanical distributor type injection pump with cold start acceleration
EP1273792A3 (en) Fuel injector with high-pressure resistant supply
EP0347582A3 (en) Injection pump for internal-combustion engines
CN103410642A (en) High pressure common rail oil atomizer fuel oil injection law control body
WO2004011794A3 (en) Fuel injector for diesel engines
DE502004000246D1 (en) Fuel injector
EP1310668A3 (en) Fuel injection system for a combustion engine
GB556742A (en) Improvements in and relating to fuel injection in internal combustion engines
TW200504282A (en) Hydraulic coupler and fuel injection valve
CN205154475U (en) Be total to rail system high pressure subassembly and high -pressure pump
DE471723C (en) Fuel injection pump for diesel and diesel-like machines, especially those with airless injection
DE102004015266A1 (en) High pressure pump with integrated high pressure accumulator
GB191100981A (en) Improvements in Hydraulic Rams.
GB779137A (en) Fluid-pressure relief valve particularly for fuel injection devices
EP1258628A3 (en) Fuel injection valve
DE10346244A1 (en) injection

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee