Method of operating a four-stroke internal combustion engine and

Details Method of operating a four-stroke internal combustion engine and Method of operating a four-stroke internal combustion engine and

1976-12-28

1979-12-11

Myhre, Charles J.

Internal-combustion engines

Two-cycle

Rear compression

123 25C, 123124R, F02B 7510

Patent

active

041777727

ABSTRACT:
A method of operating a four-stroke internal combustion engine of the carburator or fuel injection type, with one or several reciprocating pistons or one or several rotary pistons wherein during the intake movement of the one or the several pistons an additional gaseous or liquid or gas-liquid mixture fluid is introduced into the cylinder working space through a cylinder side wall aperture in the vicinity of the piston to establish a layer charge overlying the piston. The introduction of this fluid may be effected by suction effects caused by the piston movement. The amount of fluid supplied may be controlled in dependence upon combustion pressure and/or exhaust gas composition. The internal combustion engine includes an aperture in a cylinder wall in communication with a fluid source whereby this aperture is adapted to be obstructed or exposed by the moving piston to control the admission of the additional fluid. Between the aperture and the fluid source may be provided control valve means.

REFERENCES:
patent: 1611429 (1926-12-01), Fish
patent: 1892124 (1932-12-01), Abell
patent: 1963780 (1934-06-01), DuBois
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patent: 3977373 (1976-08-01), Sand
patent: 4007718 (1977-02-01), Laprade et al.
patent: 4037406 (1977-07-01), Hartel
patent: 4060061 (1977-11-01), Might

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