Title:
DOUBLE-LINK PISTON CRANK MECHANISM OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2019214938
Kind Code:
A
Abstract:
To supply a sufficient quantity of a lubricant to a bearing portion of an upper pin.SOLUTION: An upper link 4 has: a rod part 21; an annular piston-pin pin boss part arranged at one end of the rod part 21; an annular upper-pin pin boss part 23 arranged at the other end of the rod part 21; and a salient part 24 salient from a side face of the rod part 21. The salient part 24 has a recess 27 which is opened at the piston-pin pin boss side of the upper link 4, and can receive and secure the lubrication (oil). The lubricant received in the recess 27 is supplied into a bearing hole 26 of the upper-pin pin boss part 23 via an oil hole 31.SELECTED DRAWING: Figure 5
Inventors:
ARINAGA TAKESHI
ICHIHARA HIROKI
FUJITA HIDEHIRO
ICHIHARA HIROKI
FUJITA HIDEHIRO
Application Number:
JP2018110768A
Publication Date:
December 19, 2019
Filing Date:
June 11, 2018
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F02B75/04; F01M1/06; F16C7/02
Domestic Patent References:
| JP2010116777A | 2010-05-27 | |||
| JPS54163242U | 1979-11-15 | |||
| JPS5748324U | 1982-03-18 | |||
| JPH09242522A | 1997-09-16 | |||
| JPS57160908U | 1982-10-08 | |||
| JPS6072911U | 1985-05-22 | |||
| JPH0447113U | 1992-04-22 |
Foreign References:
| US20130118442A1 | 2013-05-16 | |||
| DE102004048698A1 | 2005-05-12 |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tomioka Kiyoshi