Air-flow control device for engine

Details Air-flow control device for engine Air-flow control device for engine

1995-08-15

1996-08-06

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Having plural throttle valve structure

123389, 12317918, F02D 902

Patent

active

055423884

ABSTRACT:
An air-flow control device, for an engine having an intake passage and a fuel injector arranged in the intake passage for injecting fuel into the intake passage, includes an air-flow control valve, and a driving apparatus for driving the air-flow control valve. The air-flow control valve is arranged in the intake passage upstream of the fuel injector. The apparatus includes a first vacuum chamber into which the atmospheric pressure or a negative pressure produced in the intake passage downstream of the air-flow control valve is selectively introduced via a first vacuum control valve, and a second vacuum chamber into which the atmospheric pressure or a negative pressure produced in the intake passage downstream of the air-flow control valve is selectively introduced via a second vacuum control valve. The apparatus drives the air-flow control valve so that the degree of opening of the air-flow control valve becomes larger as the negative pressure in the first and the second vacuum chamber becomes larger. During an engine starting operation, the air-flow control valve is closed by introducing the atmospheric pressure into both of the first and the second vacuum chambers. After the engine starting operation is finished, the air-flow control valve is opened and the degree of opening of the air-flow control valve is controlled by controlling the negative pressure in the first and the second vacuum chambers.

REFERENCES:
patent: 4289100 (1981-09-01), Kinugawa et al.
patent: 4693222 (1987-09-01), Itou et al.

Affiliated with

Also associated with

Rating

Air-flow control device for engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air-flow control device for engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-flow control device for engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2184742