Combustion engine variable compression ratio apparatus and method

Lawrence,; Keith, E; Strawbridge, Bryan E; Dutart, Charles H

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Title: Combustion engine variable compression ratio apparatus and method

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Abstract

An apparatus and method for varying a compression ratio of an engine having a block and a head mounted thereto. The apparatus and method includes a cylinder having a block portion and a head portion, a piston linearly movable in the block portion of the cylinder, a cylinder plug linearly movable in the head portion of the cylinder, and a valve located in the cylinder plug and operable to provide controlled fluid communication with the block portion of the cylinder.

Inventors:

Lawrence,; Keith, E ^[1]; Strawbridge, Bryan E ^[2]; Dutart, Charles H ^[3]

Peoria, IL
Dunlap, IL
Washington, IL

Issue Date:: 2006-06-06

Research Org.:: Caterpillar Inc., Deerfield, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 908398

Patent Number(s):: 7055469

Application Number:: 10/369,050

Assignee:: Caterpillar Inc (Peoria, IL)

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

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L1/022 - {Chain drive}
F01L1/46 - Component parts, details, or accessories, not provided for in preceding subgroups
F01L13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
F02B1/12 - with compression ignition
F02B2275/14 - Direct injection into combustion chamber
F02B3/06 - with compression ignition
F02B75/042 - {the cylinderhead comprising a counter-piston}

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D13/0269 - {Controlling the valves to perform a Miller-Atkinson cycle}
F02D15/04 - by alteration of volume of compression space without changing piston stroke

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

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DOE Contract Number:: FC05-00OR22806

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 33 ADVANCED PROPULSION SYSTEMS

Citation Formats


                    Lawrence,, Keith, E, Strawbridge, Bryan E, and Dutart, Charles H. Combustion engine variable compression ratio apparatus and method.  United States: N. p., 2006. 
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                    Lawrence,, Keith, E, Strawbridge, Bryan E, & Dutart, Charles H. Combustion engine variable compression ratio apparatus and method.  United States.

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                    Lawrence,, Keith, E, Strawbridge, Bryan E, and Dutart, Charles H. Tue .  
        "Combustion engine variable compression ratio apparatus and method".  United States.  https://www.osti.gov/servlets/purl/908398.

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@article{osti_908398,

  title        = {Combustion engine variable compression ratio apparatus and method},

  author       = {Lawrence, and Keith, E and Strawbridge, Bryan E and Dutart, Charles H},

  abstractNote = {An apparatus and method for varying a compression ratio of an engine having a block and a head mounted thereto. The apparatus and method includes a cylinder having a block portion and a head portion, a piston linearly movable in the block portion of the cylinder, a cylinder plug linearly movable in the head portion of the cylinder, and a valve located in the cylinder plug and operable to provide controlled fluid communication with the block portion of the cylinder.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2006},

  month        = {6}

}

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