Switchable rocker arm

Title: Switchable rocker arm

Abstract

A rocker arm includes an outer arm defining a lock pin bore which is centered about a lock pin bore axis and an inner arm which selectively pivots relative to the outer arm about a pivot axis which is parallel to the lock pin bore axis. The inner arm includes a protrusion which defines an inner arm stop surface which is planar. A lock pin is disposed within the lock pin bore, the lock pin having a lock pin slot extending there into and also having a lock pin stop surface which is planar. The lock pin is displaced within the lock pin bore between a coupled position in which the lock pin stop surface is aligned with the inner arm stop surface and a decoupled position in which the lock pin slot is aligned with the protrusion.

Inventors:: Mariuz, Robert M.; Keegan, Kevin R.; Fernandez, Hermes A.

Issue Date:: 2020-03-31

Research Org.:: Delphi Technologies IP Ltd., St. Michael (Barbados)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1637761

Patent Number(s):: 10605126

Application Number:: 15/955,215

Assignee:: Delphi Technologies IP Limited (St. Michael, BB)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L1/185 - {Overhead end-pivot rocking arms}
F01L2013/101 - {Electromagnets}
F01L1/182 - {the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft}
F01L2001/467 - {Lost motion springs}
F01L13/0036 - {the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction}
F01L13/0005 - {Deactivating valves}
F01L1/047 - Camshafts
F01L1/22 - automatically, e.g. mechanically
F01L2001/186 - {Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison}

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DOE Contract Number:: EE0007811

Resource Type:: Patent

Resource Relation:: Patent File Date: 04/17/2018

Country of Publication:: United States

Language:: English

Citation Formats


                    Mariuz, Robert M., Keegan, Kevin R., and Fernandez, Hermes A. Switchable rocker arm.  United States: N. p., 2020. 
        Web.

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                    Mariuz, Robert M., Keegan, Kevin R., & Fernandez, Hermes A. Switchable rocker arm.  United States.

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                    Mariuz, Robert M., Keegan, Kevin R., and Fernandez, Hermes A. Tue .  
        "Switchable rocker arm".  United States.  https://www.osti.gov/servlets/purl/1637761.

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@article{osti_1637761,

  title        = {Switchable rocker arm},

  author       = {Mariuz, Robert M. and Keegan, Kevin R. and Fernandez, Hermes A.},

  abstractNote = {A rocker arm includes an outer arm defining a lock pin bore which is centered about a lock pin bore axis and an inner arm which selectively pivots relative to the outer arm about a pivot axis which is parallel to the lock pin bore axis. The inner arm includes a protrusion which defines an inner arm stop surface which is planar. A lock pin is disposed within the lock pin bore, the lock pin having a lock pin slot extending there into and also having a lock pin stop surface which is planar. The lock pin is displaced within the lock pin bore between a coupled position in which the lock pin stop surface is aligned with the inner arm stop surface and a decoupled position in which the lock pin slot is aligned with the protrusion.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {3}

}

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Works referenced in this record:

Multipositional lift rocker arm assembly
patent, March 2003

Sweetnam, Gordon William St John; Diggs, Matthew Byrne
US Patent Document 6,532,920
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Roller finger follower for valve deactivation
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Fernandez, Hermes A.; Lee, Jong-Min; Spath, Mark J.
US Patent Document 6,321,705
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Finger follower rocker arm with engine valve deactivator
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Diggs, Matthew Byrne; Sweetnam, Gordon W.
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Roller bearing and z-stop for a two-step roller finger follower
patent, November 2009

Tawaf, Cynthia A.; Lipinski, Andrew J.; Bauman, William D.
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URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7614375

Two-step roller finger follower
patent, December 2007

Fernandez, Hermes A.; Lipinski, Andrew J.; Hendriksma, Nick J.
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Inner arm stop for a switchable rocker arm
patent, February 2011

Spath, Mark J.; Hendriksma, Nick J.; McCarroll, Michael E.
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Valve operating system for an automotive engine
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Piston-type internal-combustion engine having activatable, mechanically actuated cylinder valves
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Duesmann, Markus; Hahn, Joachim
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Rocker arm assembly
patent, November 2001

Baraszu, Daniel James; Papaioannou, George Aristidis; George, Peter Renny
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Two-step roller finger cam follower assembly having a follower travel limiter
patent, September 2010

Fischer, Thomas H.; Lipinski, Andrew J.; Fernandez, Hermes A.
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Finger follower rocker arm system
patent, August 1997

Diggs, Matthew Byrne
US Patent Document 5,653,198
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Similar Records

Title: Switchable rocker arm

Abstract

Citation Formats

Multipositional lift rocker arm assembly patent, March 2003

Roller finger follower for valve deactivation patent, November 2001

Finger follower rocker arm with engine valve deactivator patent, August 1996

Roller bearing and z-stop for a two-step roller finger follower patent, November 2009

Two-step roller finger follower patent, December 2007

Inner arm stop for a switchable rocker arm patent, February 2011

Valve operating system for an automotive engine patent, September 1988

Piston-type internal-combustion engine having activatable, mechanically actuated cylinder valves patent, December 2003

Rocker arm assembly patent, November 2001

Two-step roller finger cam follower assembly having a follower travel limiter patent, September 2010

Finger follower rocker arm system patent, August 1997

Multipositional lift rocker arm assembly
patent, March 2003

Roller finger follower for valve deactivation
patent, November 2001

Finger follower rocker arm with engine valve deactivator
patent, August 1996

Roller bearing and z-stop for a two-step roller finger follower
patent, November 2009

Two-step roller finger follower
patent, December 2007

Inner arm stop for a switchable rocker arm
patent, February 2011

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patent, September 1988

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