Process for controlling self-ignition in a 4-stroke engine

Details Process for controlling self-ignition in a 4-stroke engine Process for controlling self-ignition in a 4-stroke engine

1998-03-04

2000-07-04

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

F02M 2507

Patent

active

060823429

ABSTRACT:
The present invention is a process for controlling self-ignition in a four-stroke engine comprising variable control of the opening and the closing of the intake and exhaust in the combustion chamber as a function of the engine load. At partial load the invention performs (a) prolonged retention of burned gases in the combustion chamber, and (b) a fresh gas intake period which overall follows the retention period, in order to minimize mixing of the fresh gases with the burned gases and to control the amount of burned gases retained in the combustion chamber.

REFERENCES:
patent: 3494336 (1970-02-01), Myers et al.
patent: 4280451 (1981-07-01), Moore
patent: 4426986 (1984-01-01), Muller et al.
patent: 4700684 (1987-10-01), Pischinger et al.
patent: 5036824 (1991-08-01), Albertson et al.
patent: 5123397 (1992-06-01), Richeson
patent: 5224460 (1993-07-01), Havstad et al.
patent: 5367990 (1994-11-01), Schechter

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