DE10342958A1 - Spring unit for fuel injection pumps or gas exchange valves for IC engines has spring unit with two pressure springs located behind each other and in switched in series - Google Patents

Spring unit for fuel injection pumps or gas exchange valves for IC engines has spring unit with two pressure springs located behind each other and in switched in series Download PDF

Info

Publication number
DE10342958A1
DE10342958A1 DE2003142958 DE10342958A DE10342958A1 DE 10342958 A1 DE10342958 A1 DE 10342958A1 DE 2003142958 DE2003142958 DE 2003142958 DE 10342958 A DE10342958 A DE 10342958A DE 10342958 A1 DE10342958 A1 DE 10342958A1
Authority
DE
Germany
Prior art keywords
spring unit
switched
springs
series
fuel injection
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.)
Ceased
Application number
DE2003142958
Other languages
German (de)
Inventor
Sascha Lemme
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.)
Deutz AG
Original Assignee
Deutz AG
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 Deutz AG filed Critical Deutz AG
Priority to DE2003142958 priority Critical patent/DE10342958A1/en
Publication of DE10342958A1 publication Critical patent/DE10342958A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • F01L1/462—Valve return spring arrangements
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams

Landscapes

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

Abstract

The engine has a fuel injection pump element (1) and gas exchange valves. The pump piston (5) and the valves are each connected to a control unit and a spring unit with two pressure springs to generate opposite movements. The springs (8,12) are positioned behind each other and switched in series, and are wound in opposite directions. An intermediate plate (9) between the springs has pref. ring flanges (10,11) facing in direction of the springs. The springs have the same dimensions, and mainly the same spring data and forces.
DE2003142958 2003-09-17 2003-09-17 Spring unit for fuel injection pumps or gas exchange valves for IC engines has spring unit with two pressure springs located behind each other and in switched in series Ceased DE10342958A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003142958 DE10342958A1 (en) 2003-09-17 2003-09-17 Spring unit for fuel injection pumps or gas exchange valves for IC engines has spring unit with two pressure springs located behind each other and in switched in series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003142958 DE10342958A1 (en) 2003-09-17 2003-09-17 Spring unit for fuel injection pumps or gas exchange valves for IC engines has spring unit with two pressure springs located behind each other and in switched in series

Publications (1)

Publication Number Publication Date
DE10342958A1 true DE10342958A1 (en) 2005-04-21

Family

ID=34352900

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003142958 Ceased DE10342958A1 (en) 2003-09-17 2003-09-17 Spring unit for fuel injection pumps or gas exchange valves for IC engines has spring unit with two pressure springs located behind each other and in switched in series

Country Status (1)

Country Link
DE (1) DE10342958A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013010627A1 (en) * 2011-07-15 2013-01-24 Deutz Aktiengesellschaft Roller tappet pump unit
ITMI20121874A1 (en) * 2012-10-31 2014-05-01 Bosch Gmbh Robert PUMPING GROUP FOR FUEL SUPPLEMENTATION, PREFERABLY GASOIL, TO AN INTERNAL COMBUSTION ENGINE
EP2351945A4 (en) * 2008-11-25 2018-01-31 Yamaha Hatsudoki Kabushiki Kaisha Spring structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1840128A (en) * 1928-04-11 1932-01-05 Chrysler Corp Valve spring
US2821971A (en) * 1955-02-09 1958-02-04 Kloeckner Humboldt Deutz Ag Arrangement for attenuating spring vibrations
DE3920740A1 (en) * 1988-10-22 1990-04-26 Usui Kokusai Sangyo Kk BENDING MACHINE FOR METAL PIPELINES WITH A SMALL DIAMETER
DE4212110A1 (en) * 1992-04-10 1993-10-14 Kloeckner Humboldt Deutz Ag Valve gear for Diesel engine - has two camshafts to actuate gas exchange valves and individual fuel injection valves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1840128A (en) * 1928-04-11 1932-01-05 Chrysler Corp Valve spring
US2821971A (en) * 1955-02-09 1958-02-04 Kloeckner Humboldt Deutz Ag Arrangement for attenuating spring vibrations
DE3920740A1 (en) * 1988-10-22 1990-04-26 Usui Kokusai Sangyo Kk BENDING MACHINE FOR METAL PIPELINES WITH A SMALL DIAMETER
DE4212110A1 (en) * 1992-04-10 1993-10-14 Kloeckner Humboldt Deutz Ag Valve gear for Diesel engine - has two camshafts to actuate gas exchange valves and individual fuel injection valves

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2351945A4 (en) * 2008-11-25 2018-01-31 Yamaha Hatsudoki Kabushiki Kaisha Spring structure
WO2013010627A1 (en) * 2011-07-15 2013-01-24 Deutz Aktiengesellschaft Roller tappet pump unit
ITMI20121874A1 (en) * 2012-10-31 2014-05-01 Bosch Gmbh Robert PUMPING GROUP FOR FUEL SUPPLEMENTATION, PREFERABLY GASOIL, TO AN INTERNAL COMBUSTION ENGINE

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8131 Rejection