Direct injection type internal combustion engine

Details Direct injection type internal combustion engine Direct injection type internal combustion engine

1991-11-22

1993-09-21

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

60283, F02M 3302

Patent

active

052459756

ABSTRACT:
A direct injection type engine in which an air-fuel mixture formed in a restricted region in the combustion chamber is burned in the presence of excess air when the engine is operating under a light load. A uniform air-fuel mixture is formed in the combustion chamber when the engine becomes high, a fuel vapor is purged into the intake passage of the engine from the charcoal canister, and a catalytic converter is arranged in the exhaust passage of the engine. To prevent fuel vapor from being discharged to the outside air, the purging of fuel vapor into the intake passage is stopped when the engine is operating under a light load and the temperature of the catalyzer of the catalytic converter is low.

REFERENCES:
patent: 3618314 (1971-11-01), Krebs
patent: 3680318 (1972-08-01), Nakajima
patent: 4467769 (1984-08-01), Matsumura
patent: 4646702 (1987-03-01), Matsubara
patent: 4955339 (1990-09-01), Sasaki
patent: 4960083 (1990-10-01), Seki
patent: 4986070 (1991-01-01), Abe
patent: 5129228 (1992-07-01), Kondo

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