Direct injection-type diesel engines

Details Direct injection-type diesel engines Direct injection-type diesel engines

1989-10-05

1990-09-04

Nelli, Raymond A.

Internal-combustion engines

Precombustion and main combustion chambers in series

Having combustible mixture forming means

123271, 123279, 123285, F02B 300

Patent

active

049535285

ABSTRACT:
A direct injection-type diesel engine includes a piston head formed with a novel piston combustion chamber, with an inner wall surface composed essentially of ceramic material having a low thermal conductivity. The combustion chamber has a reduced opening diameter to enhance a squish air flow out of the clearance space between the piston and the cylinder head, and allows significant reduction of smoke, unburnt hydrocarbon and particulates in the exhaust gas, as well as minimization of thermal loss of the engine.

REFERENCES:
patent: 4164913 (1979-08-01), Komiyama et al.
patent: 4221190 (1980-09-01), Komiyama et al.
patent: 4311122 (1982-01-01), Barba et al.
patent: 4497309 (1985-02-01), Ivanchenko et al.
patent: 4511612 (1985-04-01), Huthar et al.
patent: 4771748 (1988-09-01), Chonela et al.
patent: 4834042 (1989-05-01), Wakasa et al.

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