US3886808A - Engine valve lifter guide - Google Patents

Engine valve lifter guide Download PDF

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Publication number
US3886808A
US3886808A US401068A US40106873A US3886808A US 3886808 A US3886808 A US 3886808A US 401068 A US401068 A US 401068A US 40106873 A US40106873 A US 40106873A US 3886808 A US3886808 A US 3886808A
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United States
Prior art keywords
guide
guide portion
disposed
leg
valve lifter
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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.)
Expired - Lifetime
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US401068A
Inventor
Robert L Weber
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Caterpillar Inc
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Caterpillar Tractor Co
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Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to US401068A priority Critical patent/US3886808A/en
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Publication of US3886808A publication Critical patent/US3886808A/en
Assigned to CATERPILLAR INC., A CORP. OF DE. reassignment CATERPILLAR INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CATERPILLAR TRACTOR CO., A CORP. OF CALIF.
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Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H53/00—Cams or cam-followers, e.g. rollers for gearing mechanisms
    • F16H53/06—Cam-followers
    • 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
    • F01L1/14—Tappets; Push rods
    • 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
    • F01L2307/00—Preventing the rotation of tappets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2107—Follower

Definitions

  • a roller-type valve lifter is mounted in an internal combustion engine to reciprocate a.push rod in response to rotation of an engine driven cam shaft.
  • a guide and anti-rotation device for the valve lifter comprises a vertically-disposed leg which seats in a slot formed on the valve lifter and a pair of cylindrically shaped arms, extending horizontally from opposite edges of the leg, which seat in a circumferential groove also formed on the valve lifter.
  • SUMMARY OF THE INVENTION preferably connected to an upper end of the first guide portion by reverse bend and is positioned in a bore formed in the engine block.
  • FIG. 1 is a sectional view ofa pair of valve lifters and attendant guides, operatively mounted in an internal combustion engine;
  • FIG. 2 is a top plan view of one of the valve lifters and guides.
  • FIG. 3 is an enlarged isometric view of the guide.
  • FIGS. 1 and 2 illustrate a portion of an internal combustion engine comprising a cylinder block I having a plurality of cylindrical bores 11 formed therein to reciprocally mount valve lifters 12.
  • Each valve lifter has a roller 13 rotatably mounted on a lower, bifurcated end thereof by a shaft 14 secured in place by a retaining pin IS.
  • a cam shaft 16 is rotatably mounted in the engine to have a cam lobe I7 thereof engage each roller to reciprocate the valve lifter and an engaged push rod 18 in a conventional manner.
  • a spool-like body portion 19 of the valve lifter has a lower annulus 20 and an upper annulus 21 defined therein.
  • the lower annulus communicates lubricating oil from a passage 22, formed in the cylinder block, to the valve lifter during engine operation.
  • An upper land 23 of the body portion is closely fitted within bore II and has a vertically disposed first groove or slot 24 formed thereon in parallelrelationship to the longitudinal axis of the body portion.
  • a one-piece valve lifter guide or retaining clip 25 is opcratively associated with the valve lifter to prevent skewing of roller 13 relative to its associated cam lobe 17.
  • the guide. initially comprising a flat sheet of spring steel prior to its formation by stamping or the like, comprises a single. vertically disposed first guide portion or leg 26.
  • a pair of areuately shaped second guide portions or arms 27 extend horizontally from opposite edges of a lower end of the attached leg and a third guide portion or hook 28 is connected to an upper end of the leg at a reverse bend 29. The hook and arms are thus positioned on opposite sides of leg 26, as clearly illustrated in FIG. 3.
  • leg 26 When installed, leg 26 seats in groove 2-1 whereas arms 27 are disposed in annulus or second groove 21 to substantially circumvent body portion 19.
  • Hook 28 is disposed in a bore 30 formed on top of the engine block to prevent rotation of the guide. Reverse bend 29 thus projects upwardly above the block to fully expose it for easy removal for servicing purposes.
  • Spring-like arms 27 are preferably semi-cylindrical and have a diameter which is slightly larger than the diameter of bore 11, when in their relaxed, FIG. 3 condition, to effect a light" press-fit relationship with the bore when installed therein.
  • the ends of the arms are suitably spaced apart to adapt them for radial insertion into annulus 21 and about body portion 19.
  • a noise suppressing and damping action is provided during reciprocation of the valve lifter due to the presence of lubricating oil in annulus 21 and the close fit relationship existing between leg 26 and slot 24.
  • the disposition of leg 26 in slot 24 and of leg 28 in bore 30 will function to retain the guide in position during all phases of engine operation and will prevent rotation of the valve lifter relative to the engine block.
  • a one-piece guide in combination with a spool member reciprocally mounted in a support member, said spool member having a first vertically disposed groove and a second circumferentially disposed groove formed thereon, said guide comprising a vertically disposed first guide portion disposed in said first groove, a pair of arcuately shaped second guide portions extending horizontally from opposite edges of said first guide portion and disposed in said second groove, and anti-rotation means for preventing rotation of said spool member relative to said support member.
  • said antirotation means comprises a third guide portion, connected to an upper end of said first guide portion, seated in a bore formed in said support member.
  • first guide portion constitutes a single leg.
  • said second guide portions constitute a pair of semicylindrically shaped arms having their ends spaced apart and said third guide portion constitutes a hook connected to the upper end of said leg at a reverse bend to position said arms and hook on opposite sides of said leg.
  • a one-piece guide in combination with a spool member reciprocally mounted in a support member.
  • said spool member having a longitudinally disposed first guide means and a circumferentially disposed second guide means thereon, said guide comprising a first guide portion disposed in said first guide means. a pair of arcuately shaped second guide portions extending from said first guide portion and disposed in said second guide means, and anti-rotation means for preventing rotation of said spool member relative to said support member.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

A roller-type valve lifter is mounted in an internal combustion engine to reciprocate a push rod in response to rotation of an engine driven cam shaft. A guide and anti-rotation device for the valve lifter comprises a vertically-disposed leg which seats in a slot formed on the valve lifter and a pair of cylindrically shaped arms, extending horizontally from opposite edges of the leg, which seat in a circumferential groove also formed on the valve lifter. A hook, connected to an upper end of the leg by a reverse bend, seats in a bore formed in the cylinder block.

Description

United States Patent [1 Weber June 3,1975
Related U.S. Application Data [62] Division of Ser. No. 318,518, Dec. 26, 1972.
[75] Inventor:
[52] U.S. Cl. 74/569; 123/9048; 123/905 [51] Int. Cl. F16h 53/06 [58] Field of Search 123/905, 90.48, 90.51,
l23/90.6, 90.18; 74/569, 55; 308/4 R, 4 A, 4 B, 4 C, 3 R; 248/313 2,846,988 8/1958 lskenderian 123/905 3,101,077 8/1963 Engle 123/905 3,108,580 10/1963 Crane 3,128,592 4/1964 Calvert 3,267,919 8/1966 Wortman 74/569 Primary ExaminerManuel A. Antonakas Assistant Examiner-Daniel J. OConner Attorney, Agent, or FirmPhi1lips, Moore, Weissenberger, Lempio & Strabala [57] ABSTRACT A roller-type valve lifter is mounted in an internal combustion engine to reciprocate a.push rod in response to rotation of an engine driven cam shaft. A guide and anti-rotation device for the valve lifter comprises a vertically-disposed leg which seats in a slot formed on the valve lifter and a pair of cylindrically shaped arms, extending horizontally from opposite edges of the leg, which seat in a circumferential groove also formed on the valve lifter. A book, connected to an upper end of the leg by a reverse bend, seats in a bore formed in the cylinder block.
5 Claims, 3 Drawing Figures ENGINE VALVE LIFTER GI'IDF. This is a division of Ser. No. 318.518. filed Dec. Io. 1972.
BACKGROUND OF THE INVENTION Guide and anti-rotation devices normally prevent roller-type valve lifters from rotating during engine operation to prevent skewing of the roller relative to an engaged lobe of a cam shaft. However, many of these devices ha\e not successfully reduced the high noise levels normally generated by such valve lifters, or have required separate parts for achieving the noisereducing and anti-rotation functions. In addition, many such devices tend to loosen after extended periods of use and inhibit expeditious servicing thereof. Conventional devices of this type are disclosed in US. Pat. Nos. 1,422,373: 1.424305; 1,425,766; 1,501,041; 2,] l9,()96', 1846,9824; 3,108,580; 3.180328, 3.267919; and 3.301241.
SUMMARY OF THE INVENTION preferably connected to an upper end of the first guide portion by reverse bend and is positioned in a bore formed in the engine block.
BRIEF DESCRIPTION OF THE DRAWING Other objects of this invention will become apparent from the following description and accompanying drawings wherein:
FIG. 1 is a sectional view ofa pair of valve lifters and attendant guides, operatively mounted in an internal combustion engine;
FIG. 2 is a top plan view of one of the valve lifters and guides; and
FIG. 3 is an enlarged isometric view of the guide.
DETAILED DESCRIPTION FIGS. 1 and 2 illustrate a portion of an internal combustion engine comprising a cylinder block I having a plurality of cylindrical bores 11 formed therein to reciprocally mount valve lifters 12. Each valve lifter has a roller 13 rotatably mounted on a lower, bifurcated end thereof by a shaft 14 secured in place by a retaining pin IS. A cam shaft 16 is rotatably mounted in the engine to have a cam lobe I7 thereof engage each roller to reciprocate the valve lifter and an engaged push rod 18 in a conventional manner.
A spool-like body portion 19 of the valve lifter has a lower annulus 20 and an upper annulus 21 defined therein. The lower annulus communicates lubricating oil from a passage 22, formed in the cylinder block, to the valve lifter during engine operation. An upper land 23 of the body portion is closely fitted within bore II and has a vertically disposed first groove or slot 24 formed thereon in parallelrelationship to the longitudinal axis of the body portion.
A one-piece valve lifter guide or retaining clip 25 is opcratively associated with the valve lifter to prevent skewing of roller 13 relative to its associated cam lobe 17. The guide. initially comprising a flat sheet of spring steel prior to its formation by stamping or the like, comprises a single. vertically disposed first guide portion or leg 26. A pair of areuately shaped second guide portions or arms 27 extend horizontally from opposite edges of a lower end of the attached leg and a third guide portion or hook 28 is connected to an upper end of the leg at a reverse bend 29. The hook and arms are thus positioned on opposite sides of leg 26, as clearly illustrated in FIG. 3.
When installed, leg 26 seats in groove 2-1 whereas arms 27 are disposed in annulus or second groove 21 to substantially circumvent body portion 19. Hook 28 is disposed in a bore 30 formed on top of the engine block to prevent rotation of the guide. Reverse bend 29 thus projects upwardly above the block to fully expose it for easy removal for servicing purposes.
Spring-like arms 27 are preferably semi-cylindrical and have a diameter which is slightly larger than the diameter of bore 11, when in their relaxed, FIG. 3 condition, to effect a light" press-fit relationship with the bore when installed therein. The ends of the arms are suitably spaced apart to adapt them for radial insertion into annulus 21 and about body portion 19.
A noise suppressing and damping action is provided during reciprocation of the valve lifter due to the presence of lubricating oil in annulus 21 and the close fit relationship existing between leg 26 and slot 24. The disposition of leg 26 in slot 24 and of leg 28 in bore 30 will function to retain the guide in position during all phases of engine operation and will prevent rotation of the valve lifter relative to the engine block.
What is claimed is:
l. A one-piece guide in combination with a spool member reciprocally mounted in a support member, said spool member having a first vertically disposed groove and a second circumferentially disposed groove formed thereon, said guide comprising a vertically disposed first guide portion disposed in said first groove, a pair of arcuately shaped second guide portions extending horizontally from opposite edges of said first guide portion and disposed in said second groove, and anti-rotation means for preventing rotation of said spool member relative to said support member.
2. The combination of claim I wherein said antirotation means comprises a third guide portion, connected to an upper end of said first guide portion, seated in a bore formed in said support member.
3. The combination of claim 1 wherein said third guide portion is connected to an upper end of said first guide portion at a reverse bend in said guide to position said second guide portions and said third guide portion on opposite sides of said first guide portion.
4. The combination of claim 3 wherein said first guide portion constitutes a single leg. said second guide portions constitute a pair of semicylindrically shaped arms having their ends spaced apart and said third guide portion constitutes a hook connected to the upper end of said leg at a reverse bend to position said arms and hook on opposite sides of said leg.
5. A one-piece guide in combination with a spool member reciprocally mounted in a support member. said spool member having a longitudinally disposed first guide means and a circumferentially disposed second guide means thereon, said guide comprising a first guide portion disposed in said first guide means. a pair of arcuately shaped second guide portions extending from said first guide portion and disposed in said second guide means, and anti-rotation means for preventing rotation of said spool member relative to said support member.

Claims (5)

1. A one-piece guide in combination with a spool member reciprocally mounted in a support member, said spool member having a first vertically disposed groove and a second circumferentially disposed groove formed thereon, said guide comprising a vertically disposed first guide portion disposed in said first groove, a pair of arcuately shaped second guide portions extending horizontally from opposite edges of said first guide portion and disposed in said second groove, and anti-rotation means for preventing rotation of said spool member relative to said support member.
2. The combination of claim 1 wherein said anti-rotation means comprises a third guide portion, connected to an upper end of said first guide portion, seated in a bore formed in said support member.
3. The combination of claim 1 wherein said third guide portion is connected to an upper end of said first guide portion at a reverse bend in said guide to position said second guide portions and said third guide portion on opposite sides of said first guide portion.
4. The combination of claim 3 wherein said first guide portion constitutes a single leg, said second guide portions constitute a pair of semicylindrically shaped arms having their ends spaced apart and said third guide portion constitutes a hook connected to the upper end of said leg at a reverse bend to position said arms and hook on opposite sides of said leg.
5. A one-piece guide in combination with a spool member reciprocally mounted in a support member, said spool member having a longitudinally disposed first guide means and a circumferentially disposed second guide means thereon, said guide comprising a first guide portion disposed in said first guide means, a pair of arcuately shaped second guidE portions extending from said first guide portion and disposed in said second guide means, and anti-rotation means for preventing rotation of said spool member relative to said support member.
US401068A 1972-12-26 1973-09-26 Engine valve lifter guide Expired - Lifetime US3886808A (en)

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US31851872A 1972-12-26 1972-12-26
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Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998190A (en) * 1975-06-13 1976-12-21 Caterpillar Tractor Co. Roller follower with anti-rotation retainer
US4210277A (en) * 1977-09-12 1980-07-01 Leonard W. Suroff Automatic roof ventilator
EP0221284A1 (en) * 1985-10-30 1987-05-13 Eaton Corporation Roller follower axle retention
DE3618240A1 (en) * 1986-05-30 1987-12-03 Kloeckner Humboldt Deutz Ag Lifting appliance
US4771741A (en) * 1986-07-02 1988-09-20 Ford Motor Company Non-rotative roller tappet arrangement for internal combustion engines
US5022356A (en) * 1990-10-05 1991-06-11 Gear Company Of America, Inc. Roller valve lifter with anti-rotation member
US5088455A (en) * 1991-08-12 1992-02-18 Mid-American Products, Inc. Roller valve lifter anti-rotation guide
US5188068A (en) * 1991-02-04 1993-02-23 Crane Cams Roller tappet
US5263386A (en) * 1992-11-24 1993-11-23 General Motors Corporation Roller cam follower guide
US5678514A (en) * 1996-04-02 1997-10-21 Ford Global Technologies, Inc. Valve lifter retainer for an internal combustion engine
US6345597B1 (en) * 2000-10-24 2002-02-12 John D. Keeler Non-rotatable valve lifter mechanism
US6871622B2 (en) 2002-10-18 2005-03-29 Maclean-Fogg Company Leakdown plunger
US20050120989A1 (en) * 2002-02-06 2005-06-09 Norbert Geyer Switch element for valve actuation in an internal combustion engine
US20050126520A1 (en) * 2003-04-24 2005-06-16 Spath Mark J. Anti-rotation guide for a deactivation hydraulic valve lifter
US7028654B2 (en) 2002-10-18 2006-04-18 The Maclean-Fogg Company Metering socket
US7128034B2 (en) 2002-10-18 2006-10-31 Maclean-Fogg Company Valve lifter body
US7146948B1 (en) 2005-09-30 2006-12-12 Clinton D Eells Valve lifting arrangement
US7191745B2 (en) 2002-10-18 2007-03-20 Maclean-Fogg Company Valve operating assembly
US20070119170A1 (en) * 2005-11-29 2007-05-31 Patrick Masson Non-rotating turbocharger waste gate valve
US7263956B2 (en) 1999-07-01 2007-09-04 Delphi Technologies, Inc. Valve lifter assembly for selectively deactivating a cylinder
US7273026B2 (en) 2002-10-18 2007-09-25 Maclean-Fogg Company Roller follower body
DE102006059716A1 (en) * 2006-12-18 2008-06-26 Mahle International Gmbh Non-rotating ram of a valve train
WO2009007225A1 (en) * 2007-07-09 2009-01-15 Schaeffler Kg Anti-rotation locking mechanism for controlling mechanical play
US20090159029A1 (en) * 2007-11-21 2009-06-25 Mario Kuhl Switchable Tappet
US20110061615A1 (en) * 2009-09-17 2011-03-17 Hendriksma Nick J Apparatus and Method for Setting Mechanical Lash in a Valve-Deactivating Hydraulic Lash Adjuster
US8171906B2 (en) 2008-10-21 2012-05-08 Apq Development, Llc Valve lifter guide and method of using same
US20130152885A1 (en) * 2011-12-14 2013-06-20 Caterpillar, Inc. Valve Lifter Assembly For Internal Combustion Engine
WO2013089974A1 (en) * 2011-12-14 2013-06-20 Caterpillar Inc. Method of extending engine service life and angular displacement-limiting clip for same
US20130340695A1 (en) * 2012-06-20 2013-12-26 Otics Corporation Roller lifter for internal combustion engine
USRE44864E1 (en) 2001-09-19 2014-04-29 Ina Schaeffler Kg Switching element for a valve train of an internal combustion engine
US8813706B2 (en) 2012-04-30 2014-08-26 Caterpillar Inc. Internal combustion engine having valve lifter assembly with misalignment limiting key pin
US8869763B2 (en) 2012-05-01 2014-10-28 Caterpillar Inc. Internal combustion engine having valve lifters with misalignment limiting end caps
US20150361835A1 (en) * 2014-06-13 2015-12-17 Aktiebolaget Skf Cam follower unit
US10494960B2 (en) * 2015-12-18 2019-12-03 Eaton Corporation Engine valve lifter

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US1593043A (en) * 1924-11-24 1926-07-20 Henry N Stroecker Bucket support
US2089478A (en) * 1935-05-23 1937-08-10 Gen Motors Corp Tappet spring retainer
US2119096A (en) * 1936-10-19 1938-05-31 Buckley Arthur Burton Tappet mechanism
US2192913A (en) * 1937-04-10 1940-03-12 Mell A Bolton Internal combustion engine valve
US2846988A (en) * 1956-10-30 1958-08-12 Iskenderian Edward Guide means for non rotatable valve lifters
US3101077A (en) * 1962-06-21 1963-08-20 John H Engle Roller tappet constraining device
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US1178965A (en) * 1915-10-07 1916-04-11 Henry N Stroecker Hanger.
US1593043A (en) * 1924-11-24 1926-07-20 Henry N Stroecker Bucket support
US2089478A (en) * 1935-05-23 1937-08-10 Gen Motors Corp Tappet spring retainer
US2119096A (en) * 1936-10-19 1938-05-31 Buckley Arthur Burton Tappet mechanism
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Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998190A (en) * 1975-06-13 1976-12-21 Caterpillar Tractor Co. Roller follower with anti-rotation retainer
US4210277A (en) * 1977-09-12 1980-07-01 Leonard W. Suroff Automatic roof ventilator
EP0221284A1 (en) * 1985-10-30 1987-05-13 Eaton Corporation Roller follower axle retention
DE3618240A1 (en) * 1986-05-30 1987-12-03 Kloeckner Humboldt Deutz Ag Lifting appliance
US4771741A (en) * 1986-07-02 1988-09-20 Ford Motor Company Non-rotative roller tappet arrangement for internal combustion engines
US5022356A (en) * 1990-10-05 1991-06-11 Gear Company Of America, Inc. Roller valve lifter with anti-rotation member
US5188068A (en) * 1991-02-04 1993-02-23 Crane Cams Roller tappet
US5088455A (en) * 1991-08-12 1992-02-18 Mid-American Products, Inc. Roller valve lifter anti-rotation guide
US5263386A (en) * 1992-11-24 1993-11-23 General Motors Corporation Roller cam follower guide
US5678514A (en) * 1996-04-02 1997-10-21 Ford Global Technologies, Inc. Valve lifter retainer for an internal combustion engine
US7263956B2 (en) 1999-07-01 2007-09-04 Delphi Technologies, Inc. Valve lifter assembly for selectively deactivating a cylinder
US7673601B2 (en) 1999-07-01 2010-03-09 Delphi Technologies, Inc. Valve lifter assembly for selectively deactivating a cylinder
US20070295293A1 (en) * 1999-07-01 2007-12-27 Spath Mark J Valve lifter assembly for selectively deactivating a cylinder
US6345597B1 (en) * 2000-10-24 2002-02-12 John D. Keeler Non-rotatable valve lifter mechanism
USRE44864E1 (en) 2001-09-19 2014-04-29 Ina Schaeffler Kg Switching element for a valve train of an internal combustion engine
US7207303B2 (en) 2002-02-06 2007-04-24 Ina-Schaeffler Kg Switching element
US20060191503A1 (en) * 2002-02-06 2006-08-31 Ina-Schaeffler Kg Switching element for a valve train of an internal combustion engine
US20060219199A1 (en) * 2002-02-06 2006-10-05 Ina-Schaeffler Kg Switching element
US7464680B2 (en) 2002-02-06 2008-12-16 Ina-Schaeffler Kg Switching element for a valve train of an internal combustion engine
US20050120989A1 (en) * 2002-02-06 2005-06-09 Norbert Geyer Switch element for valve actuation in an internal combustion engine
US7210439B2 (en) 2002-02-06 2007-05-01 Ina-Schaeffler Kg Switching element for a valve train of an internal combustion engine
US7128034B2 (en) 2002-10-18 2006-10-31 Maclean-Fogg Company Valve lifter body
US7191745B2 (en) 2002-10-18 2007-03-20 Maclean-Fogg Company Valve operating assembly
US7028654B2 (en) 2002-10-18 2006-04-18 The Maclean-Fogg Company Metering socket
US6871622B2 (en) 2002-10-18 2005-03-29 Maclean-Fogg Company Leakdown plunger
US7273026B2 (en) 2002-10-18 2007-09-25 Maclean-Fogg Company Roller follower body
US7281329B2 (en) 2002-10-18 2007-10-16 Maclean-Fogg Company Method for fabricating a roller follower assembly
US7284520B2 (en) 2002-10-18 2007-10-23 Maclean-Fogg Company Valve lifter body and method of manufacture
US20050126520A1 (en) * 2003-04-24 2005-06-16 Spath Mark J. Anti-rotation guide for a deactivation hydraulic valve lifter
US7007651B2 (en) * 2003-04-24 2006-03-07 Delphi Technologies, Inc. Anti-rotation guide for a deactivation hydraulic valve lifter
US7146948B1 (en) 2005-09-30 2006-12-12 Clinton D Eells Valve lifting arrangement
US20070119170A1 (en) * 2005-11-29 2007-05-31 Patrick Masson Non-rotating turbocharger waste gate valve
US20100294219A1 (en) * 2006-12-18 2010-11-25 Mario Prokop Rotationally locked tappet of a valve timing mechanism
WO2008074651A1 (en) * 2006-12-18 2008-06-26 Mahle International Gmbh Rotationally locked tappet of a valve timing mechanism
US8201532B2 (en) 2006-12-18 2012-06-19 Mahle International Gmbh Rotationally locked tappet of a valve timing mechanism
DE102006059716A1 (en) * 2006-12-18 2008-06-26 Mahle International Gmbh Non-rotating ram of a valve train
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