To prevent a corner-shaped lower edge part 26 of a cylinder 11 from being brought into contact with a piston 12 by so setting that a part of the piston 12 lowers more than the lower edge part 26 of the cylinder near the bottom dead center of the piston.
The lower end of an upper link 14 connected to the piston 12 is connected to a lower link 17 attached to a crank pin 16 through an upper pin 15. The gravity center 12A of the piston is offset from the center 13A of the piston pin in the thrust-antithrust direction. At least near the bottom dead center of the piston, the upper pin 15 is offset from the center 13A of the piston pin to the anti-piston gravity center side R to bring the upper part of the piston on the piston gravity center side L into contact with the wall surface of the cylinder 11.
USHIJIMA KENJI
TOMITA MASAYUKI
MIZUNO HIDEAKI
| JP2007239508A | 2007-09-20 | |||
| JP2002061501A | 2002-02-28 | |||
| JP2002174131A | 2002-06-21 | |||
| JPH09242605A | 1997-09-16 | |||
| JPS592967U | 1984-01-10 | |||
| JPS58144044U | 1983-09-28 | |||
| JPS60162227U | 1985-10-28 |
Hiromichi Kobayashi
Tomioka Kiyoshi