Title:
INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2009036143
Kind Code:
A
Abstract:
To reduce or avoid the occurrence of piston slap by a double-link piston-crank mechanism, and to reduce the weight of an internal combustion engine by adopting a magnesium alloy piston 8.
An upper link 5 having one end connected to the piston 8 through a piston pin 7 is connected to a lower link 4 rotatably attached to a crank pin 3 through an upper-lower link connection pin 6. The moving range 6A of the upper-lower link connection pin 6 by the reciprocating movement of the piston 8 is limited to one side of a reference axis 7A extending in the axial direction of a cylinder substantially through the center of the piston pin 7. The piston 8 is made of an alloy formed mainly of magnesium smaller in specific gravity than aluminum.
Inventors:
AOYAMA SHUNICHI
USHIJIMA KENJI
KOBAYASHI MAKOTO
USHIJIMA KENJI
KOBAYASHI MAKOTO
Application Number:
JP2007202515A
Publication Date:
February 19, 2009
Filing Date:
August 03, 2007
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F02B75/32; F02B75/04; F02D15/02; F02F3/00; F16C3/24; F16C3/28; F16C7/00; F16H21/34; F16J1/01; F16J1/16
Domestic Patent References:
| JP2002054468A | 2002-02-20 | |||
| JP2002061501A | 2002-02-28 | |||
| JP2002021592A | 2002-01-23 | |||
| JP2006200375A | 2006-08-03 | |||
| JP2003343297A | 2003-12-03 | |||
| JP2005147068A | 2005-06-09 | |||
| JP2006183479A | 2006-07-13 |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi
Hiromichi Kobayashi
Tomioka Kiyoshi