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Title:
REDUCED COMPRESSION HEIGHT PISTON AND PISTON ASSEMBLY THEREWITH AND METHODS OF CONSTRUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2014/052779
Kind Code:
A3
Abstract:
A piston assembly and method of construction thereof for an internal combustion engine are provided. The assembly includes a piston head having an upper combustion wall with an undercrown surface and a ring belt region. The piston head has a floor with an upper surface and a bottom surface. The floor is spaced beneath the upper combustion wall in radial alignment with the ring belt region. A substantially enclosed, annular cooling gallery is bounded by the undercrown surface and the floor. A pair of pin bores depends directly from the floor of the cooling gallery. The assembly further includes a pin having ends configured for oscillating receipt in the pin bores. A pin bearing surface extends within the pin bores and between the pin bores in the lower surface of the floor. The assembly includes a connecting rod with an end fixed to the pin for conjoint oscillation therewith.

Inventors:
AZEVEDO, Miguel (4177 Boulder Pond Drive, Ann Arbor, MI, 48108, US)
BEINENGER, Michael (25200 Pierce Street, Southfield, MI, 48075, US)
Application Number:
US2013/062223
Publication Date:
May 22, 2014
Filing Date:
September 27, 2013
Export Citation:
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Assignee:
FEDERAL-MOGUL CORPORATION (26555 Northwestern Highway, Southfield, MI, 48033, US)
International Classes:
F02F3/00; F16C7/00; F16C9/04; F16J1/16
Foreign References:
US3789743A1974-02-05
US3842715A1974-10-22
US2823085A1958-02-11
DE1010322B1957-06-13
Attorney, Agent or Firm:
STEARNS, Robert, L. et al. (Dickinson Wright PLLC, 2600 W. Big Beaver RoadSuite 30, Troy MI, 48084-3312, US)
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