Internal-combustion engines – Engine speed regulator – Having plural throttle valve structure
Patent
1997-03-19
1998-10-20
Argenbright, Tony M.
Internal-combustion engines
Engine speed regulator
Having plural throttle valve structure
12317918, 123389, F02D 0902
Patent
active
058231633
ABSTRACT:
An intake air-flow control device for an internal combustion engine is disclosed. The device comprises an intake air-flow control valve provided for every cylinder of the engine, a negative pressure actuator for opening the intake air-flow control valve from a partly opened condition to a fully opened condition when a negative pressure is supplied to the negative pressure actuator. When a current engine load becomes higher than a predetermined value, the negative pressure is supplied to the negative pressure actuator. During rapid acceleration, the predetermined value is changed to lower.
REFERENCES:
patent: 4308837 (1982-01-01), Nohira et al.
patent: 4452203 (1984-06-01), Oshika et al.
patent: 4479472 (1984-10-01), Shimamura
patent: 4693222 (1987-09-01), Itou et al.
patent: 5063899 (1991-11-01), Hitomi et al.
patent: 5542388 (1996-08-01), Ichinose et al.
patent: 5632249 (1997-05-01), Sadakane et al.
Patent Abstracts of Japan, vol. 8, No. 164 (M-313), Jul. 28, 1984 & JP 59 060032 A (Toyo Kogyo), Apr. 5, 1984.
Copending U.S. Application Ser. No. 08/515,439.
Copending U.S. Application Ser. No. 08/515,883.
Argenbright Tony M.
Toyota Jidosha & Kabushiki Kaisha
Vo Hieu T.
LandOfFree
Intake air-flow control device for an internal combustion 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 Intake air-flow control device for an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intake air-flow control device for an internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-233876