Internal-combustion engines – Combustion chamber means having fuel injection only – Injection of fuel onto igniter – deflector – heater – or atomizer
Patent
1980-06-17
1983-06-28
Myhre, Charles J.
Internal-combustion engines
Combustion chamber means having fuel injection only
Injection of fuel onto igniter, deflector, heater, or atomizer
123472, 123659, F02B 302
Patent
active
043899862
ABSTRACT:
A direct injection type internal combustion engine with a low pressure fuel injector includes a cylinder block having a predetermined number of cylinders, a cylinder head mounted on the cylinder block, a piston which has a large surface area at its head wall and a high heat transfer ability and is reciprocally movable within the cylinder for affording rotational motion to a crankshaft, a combustion chamber formed among the piston, the cylinder and the cylinder head, an intake valve mechanism for opening and closing an intake passage to be communicated with the combustion chamber, igniting means having its igniting portion facing the combustion chamber, a low pressure fuel injector as fuel supply means having an injection port of a wide injection angle and directed toward the head wall of the piston, and an exhaust valve mechanism for opening and closing an exhaust passage to be communicated with the combustion chamber. The low pressure fuel injector begins to supply a predetermined quantity of low pressure fuel which can be completely vaporized toward the top surface of the piston, at the suction stroke. The low pressure fuel thus supplied is brought into contact with the large top surface of the piston, and is vaporized from the top surface so that the gasification of the fuel is promoted to completely burn the fuel and to prevent emission of unburned noxious contents such as hydrocarbons.
REFERENCES:
patent: 2100143 (1937-11-01), Mock
patent: 3241768 (1966-03-01), Croft
patent: 4155332 (1979-05-01), Yaegashi et al.
Dolinar Andrew M.
Kabushiki Kaisha Toyota Chuo Kenkyusho
Myhre Charles J.
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