EP2090757A3 - Tilt lever assembly with a bearing with slots - Google Patents

Tilt lever assembly with a bearing with slots Download PDF

Info

Publication number
EP2090757A3
EP2090757A3 EP08018202A EP08018202A EP2090757A3 EP 2090757 A3 EP2090757 A3 EP 2090757A3 EP 08018202 A EP08018202 A EP 08018202A EP 08018202 A EP08018202 A EP 08018202A EP 2090757 A3 EP2090757 A3 EP 2090757A3
Authority
EP
European Patent Office
Prior art keywords
rocker arm
extending
shell
bearing
bearing journal
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
EP08018202A
Other languages
German (de)
French (fr)
Other versions
EP2090757A2 (en
EP2090757B1 (en
Inventor
Werner Vogel
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge 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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP2090757A2 publication Critical patent/EP2090757A2/en
Publication of EP2090757A3 publication Critical patent/EP2090757A3/en
Application granted granted Critical
Publication of EP2090757B1 publication Critical patent/EP2090757B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms

Abstract

Die Kipphebelanordnung (1) einer Brennkraftmaschine hat einen Kippelhebel (2) und einen Lagerzapfen (4). Der Lagerzapfen (4) weist eine als Lauffläche (5) ausgebildete äußere Umfangsfläche auf und greift in eine mit einer Lagerschale (6) ausgekleidete Zentralbohrung (3) des Kipphebels (2) ein, so dass der Kipphebel (2) schwenkbar auf der Lauffläche (5) des Lagerzapfens (4) gelagert ist. Der Lagerzapfen (4) hat einen in seinem Inneren verlaufenden ersten Ölkanal (8, 9), der in mindestens einer unterhalb einer Mittenlängsachse (7) des Lagerzapfens (4) angeordneten Austrittsöffnung (10, 11) an der Lauffläche (5) mündet. Die fest mit dem Kipphebel (2) verbundene Lagerschale (6) hat eine hohlzylindrische Form mit einer Schalenaußenfläche (21) und einer Schaleninnenfläche (22). Eine untere Hälfte der Schaleninnenfläche (22) ist mit mindestens einer in Umfangsrichtung verlaufenden und beidseitig unterhalb der Mittenlängsachse (7) endenden Innennut (23) versehen, die sich zumindest bis in einen Bereich erstreckt, in dem die Austrittsöffnung (10, 11) des ersten Ölkanals (8, 9) bei einer Grundstellung des Kipphebels (2) angeordnet ist. Die Schalenaußenfläche (21) ist mit mindestens einer in Umfangsrichtung verlaufenden, sich bis zu einer Eintrittsöffnung (19, 20) eines im Kipphebel (2) verlaufenden zweiten Ölkanals (17, 18) erstreckenden Außennut (24, 25) versehen. Die Lagerschale (6) hat mindestens eine die Innennut (23) und die Außennut (24, 25) miteinander verbindende Durchgangsöffnung (26, 27).

Figure imgaf001
The rocker arm assembly (1) of an internal combustion engine has a rocker arm (2) and a bearing journal (4). The bearing journal (4) has an outer circumferential surface designed as a running surface (5) and engages in a central bore (3) of the rocker arm (2) lined with a bearing shell (6), so that the rocker arm (2) can pivot on the running surface (FIG. 5) of the bearing journal (4) is mounted. The bearing journal (4) has a first oil passage (8, 9) extending in its interior, which opens into the running surface (5) in at least one outlet opening (10, 11) arranged below a central longitudinal axis (7) of the bearing journal (4). The bearing shell (6) firmly connected to the rocker arm (2) has a hollow cylindrical shape with a shell outer surface (21) and a shell inner surface (22). A lower half of the shell inner surface (22) is provided with at least one extending in the circumferential direction and on both sides below the central longitudinal axis (7) inner groove (23) extending at least into a region in which the outlet opening (10, 11) of the first Oil channel (8, 9) is arranged at a basic position of the rocker arm (2). The shell outer surface (21) is provided with at least one outer groove (24, 25) extending in the circumferential direction and extending up to an inlet opening (19, 20) of a second oil channel (17, 18) extending in the rocker arm (2). The bearing shell (6) has at least one through-hole (26, 27) interconnecting the inner groove (23) and the outer groove (24, 25).
Figure imgaf001
EP08018202A 2008-02-14 2008-10-17 Tilt lever assembly with a bearing with slots Active EP2090757B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008009170A DE102008009170A1 (en) 2008-02-14 2008-02-14 Rocker arm assembly with a groove having bearing shell

Publications (3)

Publication Number Publication Date
EP2090757A2 EP2090757A2 (en) 2009-08-19
EP2090757A3 true EP2090757A3 (en) 2009-09-16
EP2090757B1 EP2090757B1 (en) 2010-07-07

Family

ID=40612844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08018202A Active EP2090757B1 (en) 2008-02-14 2008-10-17 Tilt lever assembly with a bearing with slots

Country Status (6)

Country Link
US (1) US8096274B2 (en)
EP (1) EP2090757B1 (en)
CN (1) CN101509401B (en)
BR (1) BRPI0900176B1 (en)
DE (2) DE102008009170A1 (en)
RU (1) RU2410548C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700025353A1 (en) * 2017-03-07 2018-09-07 Gnutti Carlo Spa ENDOTHERMAL MOTOR PUNISHMENT
CN108071432A (en) * 2017-12-12 2018-05-25 安徽华菱汽车有限公司 A kind of engine rocker is as foot
US11905858B2 (en) * 2020-07-14 2024-02-20 Powerhouse Engine Solutions Switzerland IP Holding GmbH Systems and methods for rocker arm lubrication

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB528997A (en) * 1939-05-19 1940-11-12 William Warren Triggs Improvements in levers or rockers, particularly for the valve gear of internal combustion engines
US2563699A (en) * 1949-11-21 1951-08-07 John R Winter Sr Rocker arm construction
GB667791A (en) * 1948-09-03 1952-03-05 Toledo Stamping And Mfg Compan Improvements in or relating to engine rocker arm assemblies
US4132196A (en) * 1975-10-02 1979-01-02 Toledo Stamping & Manufacturing Company Rocker arm
EP0023250A1 (en) * 1979-07-26 1981-02-04 M.A.N. MASCHINENFABRIK AUGSBURG-NÜRNBERG Aktiengesellschaft Actuating mechanism for inlet or exhaust valves of internal-combustion engines
DE3024306A1 (en) * 1980-06-27 1982-01-21 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Plain bearing for rocking movement - has pockets in bush either side of portion subject to max. load with pressurised oil connections
WO2000040840A1 (en) * 1999-01-05 2000-07-13 Marimuthu Ramu Thiyagarajan A low cost new internal combustion engine with increased mechanical efficiency, fuel saver and pollution controlled
US6422186B1 (en) * 1999-09-10 2002-07-23 Diesel Engine Retarders, Inc. Lost motion rocker arm system with integrated compression brake
DE102005040649A1 (en) * 2005-08-27 2007-03-01 Schaeffler Kg Rocker arm-valve drive for gas exchange valve of e.g. multi-cylinder internal combustion engine, has force transmission device designed as swing/rocker arm that is rotatably supported on lever axle with pressurizing medium guiding channel

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB528997A (en) * 1939-05-19 1940-11-12 William Warren Triggs Improvements in levers or rockers, particularly for the valve gear of internal combustion engines
GB667791A (en) * 1948-09-03 1952-03-05 Toledo Stamping And Mfg Compan Improvements in or relating to engine rocker arm assemblies
US2563699A (en) * 1949-11-21 1951-08-07 John R Winter Sr Rocker arm construction
US4132196A (en) * 1975-10-02 1979-01-02 Toledo Stamping & Manufacturing Company Rocker arm
EP0023250A1 (en) * 1979-07-26 1981-02-04 M.A.N. MASCHINENFABRIK AUGSBURG-NÜRNBERG Aktiengesellschaft Actuating mechanism for inlet or exhaust valves of internal-combustion engines
DE3024306A1 (en) * 1980-06-27 1982-01-21 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Plain bearing for rocking movement - has pockets in bush either side of portion subject to max. load with pressurised oil connections
WO2000040840A1 (en) * 1999-01-05 2000-07-13 Marimuthu Ramu Thiyagarajan A low cost new internal combustion engine with increased mechanical efficiency, fuel saver and pollution controlled
US6422186B1 (en) * 1999-09-10 2002-07-23 Diesel Engine Retarders, Inc. Lost motion rocker arm system with integrated compression brake
DE102005040649A1 (en) * 2005-08-27 2007-03-01 Schaeffler Kg Rocker arm-valve drive for gas exchange valve of e.g. multi-cylinder internal combustion engine, has force transmission device designed as swing/rocker arm that is rotatably supported on lever axle with pressurizing medium guiding channel

Also Published As

Publication number Publication date
BRPI0900176B1 (en) 2019-07-02
US8096274B2 (en) 2012-01-17
EP2090757A2 (en) 2009-08-19
EP2090757B1 (en) 2010-07-07
US20090205600A1 (en) 2009-08-20
CN101509401A (en) 2009-08-19
DE502008000898D1 (en) 2010-08-19
DE102008009170A1 (en) 2009-08-20
CN101509401B (en) 2012-09-05
RU2410548C2 (en) 2011-01-27
RU2009105152A (en) 2010-08-20
BRPI0900176A2 (en) 2009-09-29

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