WO2011134790A3 - Hydraulic valve play compensating element for reciprocating-piston internal combustion engines - Google Patents

Hydraulic valve play compensating element for reciprocating-piston internal combustion engines Download PDF

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Publication number
WO2011134790A3
WO2011134790A3 PCT/EP2011/055753 EP2011055753W WO2011134790A3 WO 2011134790 A3 WO2011134790 A3 WO 2011134790A3 EP 2011055753 W EP2011055753 W EP 2011055753W WO 2011134790 A3 WO2011134790 A3 WO 2011134790A3
Authority
WO
WIPO (PCT)
Prior art keywords
valve
inlet
compensating element
piston
working piston
Prior art date
Application number
PCT/EP2011/055753
Other languages
German (de)
French (fr)
Other versions
WO2011134790A2 (en
Inventor
Peter Sailer
Oliver Schnell
Oliver Witter
Klaus Tietzel
Original Assignee
Schaeffler Technologies Gmbh & 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 Schaeffler Technologies Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Priority to US13/583,953 priority Critical patent/US20130000573A1/en
Priority to EP11715902.0A priority patent/EP2564038B1/en
Publication of WO2011134790A2 publication Critical patent/WO2011134790A2/en
Publication of WO2011134790A3 publication Critical patent/WO2011134790A3/en

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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2411—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the valve stem and rocker arm
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/01—Absolute values
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/032—Electric motors

Abstract

The invention relates to a reciprocating-piston internal combustion engine which operates on the four-stroke cycle, having a crankcase and having at least one cylinder which is arranged in said crankcase and in which a piston is guided by a crankshaft, having at least one cylinder head which closes off the cylinder and the inlet and outlet ducts of which are controlled by at least in each case one inlet and outlet valve loaded by a valve spring, which inlet and outlet valves can be actuated by transmission elements driven by a camshaft, and having a hydraulic valve play compensating element (5) which is installed in at least one of the transmission elements or in a component, which is installed in the transmission element, between the camshaft and at least one inlet and/or outlet valve, which hydraulic valve play compensating element has a working piston (8), a cylinder housing (7) which interacts with the working piston (8), a restoring spring (18) which is installed in between, and a check valve which delimits a high-pressure chamber (19) and the valve closing body (12) of which corresponds to a valve seat (11) on the working piston (8), wherein the valve closing body (12) has a partial spherical surface (13) in the region of the valve seat (11), and wherein the ratio of the diameter of the working piston (8) to twice the radius of the partial spherical surface (13) is ≤ 2.
PCT/EP2011/055753 2010-04-26 2011-04-13 Hydraulic valve play compensating element for reciprocating-piston internal combustion engines WO2011134790A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/583,953 US20130000573A1 (en) 2010-04-26 2011-04-13 Hydraulic valve play compensating element for reciprocating-piston internal combustion engines
EP11715902.0A EP2564038B1 (en) 2010-04-26 2011-04-13 Hydraulic valve play compensating element for reciprocating-piston internal combustion engines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010018208A DE102010018208A1 (en) 2010-04-26 2010-04-26 Hydraulic valve clearance compensation element for reciprocating internal combustion engines
DE102010018208.7 2010-04-26

Publications (2)

Publication Number Publication Date
WO2011134790A2 WO2011134790A2 (en) 2011-11-03
WO2011134790A3 true WO2011134790A3 (en) 2012-03-15

Family

ID=44544232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/055753 WO2011134790A2 (en) 2010-04-26 2011-04-13 Hydraulic valve play compensating element for reciprocating-piston internal combustion engines

Country Status (4)

Country Link
US (1) US20130000573A1 (en)
EP (1) EP2564038B1 (en)
DE (1) DE102010018208A1 (en)
WO (1) WO2011134790A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2503705A (en) * 2012-07-05 2014-01-08 Eaton Srl Hydraulic Lash Adjuster and Lost Motion System
WO2016184495A1 (en) 2015-05-18 2016-11-24 Eaton Srl Rocker arm having oil release valve that operates as an accumulator
DE102015211122A1 (en) 2015-06-17 2016-12-22 Schaeffler Technologies AG & Co. KG Transmission element for reciprocating internal combustion engines
DE102015216291B3 (en) 2015-08-26 2016-11-03 Schaeffler Technologies AG & Co. KG Hydraulic compensating element of a valve train
DE102015220628B3 (en) * 2015-10-22 2016-10-27 Schaeffler Technologies AG & Co. KG Flat or roller plunger for a reciprocating internal combustion engine
CN105736086B (en) * 2016-02-02 2018-06-29 吉林大学 The engine braking methods and decompressor that burning braking is combined with pressure m
US11242774B2 (en) * 2019-09-20 2022-02-08 Caterpillar Inc. Rocker assembly with a hydraulic lash adjuster

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339238A (en) * 1942-03-09 1944-01-18 Buckley Arthur Burton Valve tappet
US4164917A (en) * 1977-08-16 1979-08-21 Cummins Engine Company, Inc. Controllable valve tappet for use with dual ramp cam
GB2090364A (en) * 1980-12-31 1982-07-07 Cummins Engine Co Inc Expandable hydraulic tappet with a variable exit valve
US4462364A (en) * 1981-09-17 1984-07-31 Aisin Seiki Kabushiki Kaisha Hydraulic lash adjuster
US5088458A (en) * 1991-02-01 1992-02-18 Siemens Automotive L.P. Lash adjusted for engine valve actuator assembly
EP0497194A1 (en) * 1991-01-29 1992-08-05 MAN Nutzfahrzeuge Aktiengesellschaft Method for actuating an exhaust valve tappet during braking of an internal combustion engine
DE19818893A1 (en) * 1998-04-28 1999-11-04 Mwp Mahle J Wizemann Pleuco Gm Hydraulic valve lash adjuster
WO2006048100A1 (en) * 2004-11-04 2006-05-11 Schaeffler Kg Variable valve drive of an internal combustion engine
DE102007014248A1 (en) * 2007-03-24 2008-09-25 Schaeffler Kg Reciprocating internal combustion engine with engine braking device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124114A (en) * 1964-03-10 Voorhies
USRE24633E (en) * 1959-04-14 Voorhies
US1916191A (en) * 1931-11-27 1933-07-04 Gen Motors Corp Zero lash valve lifter
US2682864A (en) * 1952-05-08 1954-07-06 Voorhies Carl Valve lifter
US3014472A (en) * 1960-06-13 1961-12-26 Bendix Corp Hydraulic valve tappet
US3140698A (en) * 1962-04-13 1964-07-14 Voorhies Carl Hydraulic tappet unit inverted
JPS5923011A (en) * 1982-07-30 1984-02-06 Honda Motor Co Ltd Oil pressure type valve head gap removing device in valve moving mechanism
US6460499B1 (en) * 2001-01-16 2002-10-08 Tecumseh Products Company Hydraulic lifter assembly
DE102004018457A1 (en) * 2004-04-16 2005-11-17 Ina-Schaeffler Kg Hydraulic valve clearance compensation element
US20070272185A1 (en) * 2006-05-24 2007-11-29 Schaeffler Kg Hydraulic lash adjuster for an internal combustion engine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339238A (en) * 1942-03-09 1944-01-18 Buckley Arthur Burton Valve tappet
US4164917A (en) * 1977-08-16 1979-08-21 Cummins Engine Company, Inc. Controllable valve tappet for use with dual ramp cam
GB2090364A (en) * 1980-12-31 1982-07-07 Cummins Engine Co Inc Expandable hydraulic tappet with a variable exit valve
US4462364A (en) * 1981-09-17 1984-07-31 Aisin Seiki Kabushiki Kaisha Hydraulic lash adjuster
EP0497194A1 (en) * 1991-01-29 1992-08-05 MAN Nutzfahrzeuge Aktiengesellschaft Method for actuating an exhaust valve tappet during braking of an internal combustion engine
US5088458A (en) * 1991-02-01 1992-02-18 Siemens Automotive L.P. Lash adjusted for engine valve actuator assembly
DE19818893A1 (en) * 1998-04-28 1999-11-04 Mwp Mahle J Wizemann Pleuco Gm Hydraulic valve lash adjuster
WO2006048100A1 (en) * 2004-11-04 2006-05-11 Schaeffler Kg Variable valve drive of an internal combustion engine
DE102007014248A1 (en) * 2007-03-24 2008-09-25 Schaeffler Kg Reciprocating internal combustion engine with engine braking device

Also Published As

Publication number Publication date
EP2564038A2 (en) 2013-03-06
WO2011134790A2 (en) 2011-11-03
EP2564038B1 (en) 2014-09-17
DE102010018208A1 (en) 2011-10-27
US20130000573A1 (en) 2013-01-03

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