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Title:
RECIPROCATING ENGINE
Document Type and Number:
Japanese Patent JP2013036470
Kind Code:
A
Abstract:

To provide a reciprocating engine that eliminates piston ring interference in an oil ring, and generates desired lateral pressure to greatly reduce sliding friction resistance between both a piston ring and a side surface of a piston and a cylinder.

The reciprocating engine 1 includes: the piston ring 5; the piston ring 7 which defines an annular gas chamber 6 in cooperation with the piston ring 5 and which is adjacent to the piston ring 5 such that a pressure-receiving area of the side surface 8 of the piston 3 in the annular gas chamber 6 becomes greater on a thrust side than on a counter-thrust side of the piston 3; and a gas passage 15 for allowing the annular gas chamber 6 to communicate with the combustion chamber 2.


Inventors:
Bando, Shigeru
Application Number:
JP2012000215252
Publication Date:
February 21, 2013
Filing Date:
September 27, 2012
Export Citation:
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Assignee:
BANDO KIKO CO LTD
International Classes:
F02F1/18; F02B75/06; F02F3/00; F02F5/00; F16J9/00; F16J9/22; F16J10/00; F16J10/02
Domestic Patent References:
JPH04362258A1992-12-15
JPH04347353A1992-12-02
Attorney, Agent or Firm:
高田 武志