To prevent leak of oil from an oil supply hole and there reliably lubricate a position between a connection tubular part of a sub connecting rod and a crank pin by a splash lubrication system, in a link type variable stroke engine in which a piston, a crank shaft and an eccentric shaft are linked to each other by a linking mechanism.
In this variable stroke engine, an oil supply hole 70 for supplying oil to a position between a connection tubular part 57 of a sub connecting rod 58A and a crank pin 17c is provided in an upper portion of the connection tubular part 57 at a position which is deviated from a loading direction of a maximum load applied from the crank pin 17c to an inner surface of the connection tubular part 57 by maximum in-tube pressure, and which is immediately behind a point of application of the maximum load along a direction in which the crank pin 17c rotates relative to the sub connecting rod 58A.
SATO GIICHI
| JP2003314211A | 2003-11-06 | |||
| JP2005188719A | 2005-07-14 | |||
| JPH11294444A | 1999-10-26 | |||
| JPH04119213A | 1992-04-20 | |||
| JPS54182738U | 1979-12-25 | |||
| JPS5867115U | 1983-05-07 | |||
| JPS62105313U | 1987-07-04 | |||
| JPS61109913U | 1986-07-11 | |||
| JP2003278567A | 2003-10-02 |
| EP1359303A2 | 2003-11-05 |
Kazuaki Niki
Nude Shima Shinji