Piston for direct injection combustion chamber used in internal

Details Piston for direct injection combustion chamber used in internal Piston for direct injection combustion chamber used in internal

1999-05-20

2000-06-06

Solis, Erick R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Injection of fuel onto igniter, deflector, heater, or atomizer

123301, 123305, F02B 2306

Patent

active

060705663

ABSTRACT:
A direct fuel injection type internal combustion engine includes a combustion chamber formed by a cylinder head having a spark plug, a fuel injector and an air intake means with a swirl control valve, a cylinder wall, and a piston head having a vaporization portion. The upper surface of the piston head has a vaporization portion defined with a bottom surface formed with a predetermined depth and slant, an arc-shaped first wall connected to the bottom surface and formed to exhaust side, an arc-shaped second wall connected to the bottom surface and formed parallel to the first wall, a protrusion portion formed between the first wall and the second wall, and an arc-shaped third wall connected to the bottom surface and formed to an intake side.

REFERENCES:
patent: 5115774 (1992-05-01), Nomura et al.
patent: 5140958 (1992-08-01), Kobayashi et al.
patent: 5553588 (1996-09-01), Gono et al.
patent: 5806482 (1998-09-01), Igarashi et al.
patent: 5873344 (1999-02-01), Kudou et al.

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