Internal combustion engine and its piston

Details Internal combustion engine and its piston Internal combustion engine and its piston

1990-10-31

1992-06-23

Dolinar, Andrew M.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

92186, 123585, F02F 300

Patent

active

051233860

ABSTRACT:
An internal combustion engine having its cylinders tilted at an angle of less an than 90 degrees relative to a vertical axis is provided with a oil drain mechanism for drainign excess oil that collects when the engine stops. For this purpose, an oil drain hole, which communicates with an interior of the piston body to drain the lubricating oil, is formed in the inner wall of an oil ring groove in such a way as to be located below the center line of the piston body. Both ends of the oil drain hole are set lower than the lowest portion of a piston head. Therefore, it is possible to prevent lubricating oil from entering the combustion chamber when the engine stops, without providing a whirl-stop on piston rings.

REFERENCES:
patent: 4428330 (1984-01-01), Shimizu
patent: 4506632 (1985-03-01), Kanda et al.
patent: 4530312 (1985-07-01), Kanda et al.
patent: 4538578 (1985-09-01), Suzuki et al.
patent: 4541379 (1985-09-01), Ruschek et al.
patent: 4557234 (1985-12-01), Ito
patent: 4573441 (1986-03-01), Wietschorke et al.
patent: 4677901 (1987-07-01), Ban et al.
patent: 4903658 (1990-02-01), Miyama et al.
patent: 4938199 (1990-07-01), Sato et al.

Affiliated with

Also associated with

Rating

Internal combustion engine and its piston does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Internal combustion engine and its piston, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal combustion engine and its piston will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-926605