Variable compression piston arrangement for internal combustion

Details Variable compression piston arrangement for internal combustion Variable compression piston arrangement for internal combustion

1988-06-15

1990-06-19

Feinberg, Craig R.

Internal-combustion engines

Four-cycle

Variable clearance

123 48B, F02B 7504

Patent

active

049343475

ABSTRACT:
The pressure prevailing in a variable volume chamber which controls the compression ratio developed by a piston, is used control the movement of a valve which regulates the supply and draining of the chamber. During high load the high pressure is used to drain the chamber while under light load the lower pressure permits the chamber to be supplied with hydraulic fluid in a manner which tends to fill the same during induction phases and the like when the pressure in the cylinder is low.

REFERENCES:
patent: 3161112 (1964-12-01), Wallace et al.
patent: 3403662 (1968-10-01), Blackburne
patent: 4286552 (1981-09-01), Tsutsumi
patent: 4342291 (1982-08-01), Lewis
patent: 4809650 (1989-03-01), Arai et al.

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