Internal-combustion engines – Combustion chamber means having fuel injection only – Injection of fuel onto igniter – deflector – heater – or atomizer
Patent
1999-03-26
2000-12-19
Yuen, Henry C.
Internal-combustion engines
Combustion chamber means having fuel injection only
Injection of fuel onto igniter, deflector, heater, or atomizer
123276, 123279, F02F 326
Patent
active
061615188
ABSTRACT:
A direct-injection diesel engine in which a shallow-dish type piston cavity is formed on a top surface of a piston; wherein in the vicinity of the top dead center, a squish area is defined mainly by the top surface of the piston and an inner surface of a cylinder head opposite the top surface; when a velocity of a reverse squish flow from the shallow-dish type piston cavity to the squish area, generated due to a movement of the piston and is represented by Vs, and a fuel spray velocity in the vicinity of a lip portion of the shallow-dish type piston cavity is represented by Vsp, the distance between opposite wall portions of the shallow-dish type piston cavity is set such that the ratio Vs/Vsp is not greater than 1.25; and the squish area constitutes a part of the combustion chamber.
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Fuyuto Takayuki
Hotta Yoshihiro
Inagaki Kazuhisa
Inayoshi Minaji
Nakakita Kiyomi
Kabushiki Kaisha Toyota Chuo Kenkyusho
Vo Hieu T.
Yuen Henry C.
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