Compression ratio-changing device for internal combustion engine

Details Compression ratio-changing device for internal combustion engine Compression ratio-changing device for internal combustion engine

1988-06-29

1989-09-12

Okonsky, David A.

Internal-combustion engines

Adjustable combustion chamber

Piston in head adjusted

123 78BA, F02D 1502

Patent

active

048649759

ABSTRACT:
A compression ratio-changing device for an internal combustion engine includes a rotary eccentric member rotatably interposed between a piston and a connecting rod, a locking pin for locking the rotary eccentric member to the connecting rod, and a device for driving the locking pin to selectively hold the rotary eccentric member to the connecting rod and release same therefrom. A sliding groove formed in the connecting rod is disposed for parallel alignment with a guide groove formed in the rotary eccentric member when the rotary eccentric member assumes a first angular position for decreasing the volume of a combustion chamber of the engine at a top dead center position of the piston to obtain a higher compression ratio, or a second angular position for increasing the volume of the combustion chamber at the dead center position of the piston to obtain a lower compression ratio. The locking pin is disposed to be held between the guide groove and the sliding groove when the guide groove is in parallel alignment with the sliding groove, thereby locking the rotary eccentric member to the connecting rod.

REFERENCES:
patent: 1637245 (1927-07-01), Scully
patent: 2356033 (1944-08-01), Criddle
patent: 4515114 (1985-05-01), Dang
patent: 4516537 (1985-05-01), Nakahara et al.
patent: 4602596 (1986-07-01), Kessler
patent: 4721073 (1988-01-01), Naruoka et al.

Affiliated with

Also associated with

Rating

Compression ratio-changing device for internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compression ratio-changing device for internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compression ratio-changing device for internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-908680