Internal combustion engine

Details Internal combustion engine Internal combustion engine

1991-05-28

1992-07-07

Wolfe, Willis R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Air entering combustion chamber through plural inlets

123305, 123276, 123661, 1231935, F02B 1916, F02B 2308

Patent

active

051273799

ABSTRACT:
An internal combustion engine comprising a spark plug arranged at the center of the inner wall of the cylinder head, and a fuel injector arranged on the periphery of the inner wall of the cylinder head. A depression extending from the position beneath the spark plug to the position beneath the tip portion of the fuel injector is formed on the top face of the piston, and fuel is injected toward the depression. When the engine is operating under a heavy load, the fuel moving along the axis of injection impinges upon the concaved inner wall of the depression at substantially a right angle. When the engine is operating under a light load, the injection time is retarded, and at this time, the fuel moving along the axis of injection impinges upon the concaved inner wall of the depression at an acute angle.

REFERENCES:
patent: 3498276 (1970-03-01), Hardenberg
patent: 4840147 (1989-01-01), Tanahashi et al.
patent: 4920937 (1990-05-01), Sasaki et al.
patent: 4955339 (1990-09-01), Sasaki et al.
patent: 4957081 (1990-09-01), Ito et al.

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