Internal combustion engine with helical intake port and combusti

Details Internal combustion engine with helical intake port and combusti Internal combustion engine with helical intake port and combusti

1982-09-22

1984-11-06

Feinberg, Craig R.

Internal-combustion engines

Combustion chamber

Having squish area

123279, 123188M, F02B 2308

Patent

active

044806256

ABSTRACT:
An internal combustion engine has a cylinder head formed with a wedge shaped cylinder head recess which has on its one side closer to a spark plug a steeply inclined roof surface of about 38.degree. to 40.degree. inclination and on its other side a gently inclined roof surface of about 5.degree. to 20.degree. inclination formed with an intake valve opening, and a piston formed with a piston recess which generally mates with the cylinder head recess and which has on its one side closer to the spark plug an inclined side surface of about 45.degree. inclination. The planar surface portion of the piston crown and the planar surface portion of the cylinder head on opposite sides of the recessed portions mutually define a relatively large squish area on the side of the gently inclined roof surface and a relatively small squish area on the side of the steeply inclined roof surface. A helical port is connected to the intake valve opening so as to generate a swirl flow of air-fuel mixture in the combustion chamber.

REFERENCES:
patent: 3945363 (1976-03-01), Elsbett et al.
patent: 4344407 (1982-08-01), Konishi et al.
patent: 4344408 (1982-08-01), Inoue et al.
Geschelin; "Survey of Combustion Chamber Progress Part 1"; Automotive Industries; Nov. 1, 1962; pp. 42-45, 72 & 73.

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