EP1260680A3 - Hydraulic valve drive for 2 valves simultaneously in a diesel engine - Google Patents

Hydraulic valve drive for 2 valves simultaneously in a diesel engine Download PDF

Info

Publication number
EP1260680A3
EP1260680A3 EP02002524A EP02002524A EP1260680A3 EP 1260680 A3 EP1260680 A3 EP 1260680A3 EP 02002524 A EP02002524 A EP 02002524A EP 02002524 A EP02002524 A EP 02002524A EP 1260680 A3 EP1260680 A3 EP 1260680A3
Authority
EP
European Patent Office
Prior art keywords
valves
diesel engine
hydraulic valve
valve drive
valves simultaneously
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
EP02002524A
Other languages
German (de)
French (fr)
Other versions
EP1260680B1 (en
EP1260680A2 (en
Inventor
Hans-Jürgen Schacht
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.)
Caterpillar Motoren GmbH and Co KG
Original Assignee
Caterpillar Motoren GmbH and Co KG
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 Caterpillar Motoren GmbH and Co KG filed Critical Caterpillar Motoren GmbH and Co KG
Publication of EP1260680A2 publication Critical patent/EP1260680A2/en
Publication of EP1260680A3 publication Critical patent/EP1260680A3/en
Application granted granted Critical
Publication of EP1260680B1 publication Critical patent/EP1260680B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • 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
    • F01L2800/00—Methods of operation using a variable valve timing mechanism

Abstract

Pressure chambers are provided in the control piston (8) for the identical valves (4,5) and are connected through control ducts (11,12) to pressure supply lines (6,7) which are opened and closed through magnetic valves (91,0). The control pistons hold the engine valves (4,5) in a preliminary stage in the closed position (S) and in a following stage with a preliminary stroke. In a further stage the engine valves are adjustable into a maximum opening position through the control piston.
EP02002524A 2001-05-22 2002-02-04 Hydraulic valve drive for 2 valves simultaneously in a diesel engine Expired - Lifetime EP1260680B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10124869 2001-05-22
DE10124869A DE10124869C2 (en) 2001-05-22 2001-05-22 Hydraulic control device for equivalent engine valves of a diesel engine

Publications (3)

Publication Number Publication Date
EP1260680A2 EP1260680A2 (en) 2002-11-27
EP1260680A3 true EP1260680A3 (en) 2003-05-02
EP1260680B1 EP1260680B1 (en) 2006-04-05

Family

ID=7685687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002524A Expired - Lifetime EP1260680B1 (en) 2001-05-22 2002-02-04 Hydraulic valve drive for 2 valves simultaneously in a diesel engine

Country Status (3)

Country Link
EP (1) EP1260680B1 (en)
AT (1) ATE322610T1 (en)
DE (2) DE10124869C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4182922B2 (en) * 2004-06-17 2008-11-19 いすゞ自動車株式会社 Exhaust valve drive control method and apparatus
FR2878559B1 (en) * 2004-11-30 2009-07-03 Renault Sas DEVICE FOR ACTUATING THE VALVES OF A THERMAL MOTOR WITHOUT CAMSHAFT AND TWO-PART VALVE PISTON
EP2041405B1 (en) 2006-07-04 2010-06-02 Renault Trucks Hydraulically operated valve control system and internal combustion engine comprising such a system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0767295A1 (en) * 1995-10-03 1997-04-09 New Sulzer Diesel Ag Hydraulic valve
JPH1130135A (en) * 1997-07-11 1999-02-02 Nippon Soken Inc Controller of diesel engine
US6173685B1 (en) * 1995-05-17 2001-01-16 Oded E. Sturman Air-fuel module adapted for an internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU9017291A (en) * 1991-07-12 1993-02-11 Caterpillar Inc. Recuperative engine valve system and method of operation
DE19716042C1 (en) * 1997-04-17 1998-05-07 Daimler Benz Ag Hydraulic valve control device for internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173685B1 (en) * 1995-05-17 2001-01-16 Oded E. Sturman Air-fuel module adapted for an internal combustion engine
EP0767295A1 (en) * 1995-10-03 1997-04-09 New Sulzer Diesel Ag Hydraulic valve
JPH1130135A (en) * 1997-07-11 1999-02-02 Nippon Soken Inc Controller of diesel engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31) *

Also Published As

Publication number Publication date
DE10124869C2 (en) 2003-06-26
EP1260680B1 (en) 2006-04-05
EP1260680A2 (en) 2002-11-27
ATE322610T1 (en) 2006-04-15
DE50206283D1 (en) 2006-05-18
DE10124869A1 (en) 2002-12-12

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