Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1992-10-28
1993-06-01
Nelli, Raymond A.
Internal-combustion engines
Engine speed regulator
Idle speed control
123520, F02M 300, F02M 3302
Patent
active
052150550
ABSTRACT:
A control system (10) controls both engine idle speed and purge flow through a fuel vapor recovery system (86) into an air/fuel intake (54) of the engine. A bypass throttle valve (66) connected in parallel with a primary engine throttle (62) is controlled by a feedback variable related to a difference between actual idle speed and desired idle speed. Purge flow is reduced when the bypass throttle position falls below a dead band provided stoichiometric air/fuel control is maintained.
REFERENCES:
patent: 4467769 (1984-08-01), Matsumura
patent: 4619232 (1986-10-01), Morris
patent: 4974444 (1990-12-01), Neubacher
patent: 5041976 (1991-08-01), Marko et al.
patent: 5048492 (1991-09-01), Davenport et al.
patent: 5048493 (1991-09-01), Orzel et al.
patent: 5076230 (1991-12-01), Ohkuno
patent: 5083541 (1992-01-01), Chen
patent: 5090388 (1992-02-01), Hamburg et al.
patent: 5111787 (1992-05-01), Kondo
patent: 5113834 (1992-05-01), Aramaki
patent: 5134978 (1992-08-01), Binncevies et al.
patent: 5136997 (1992-08-01), Takahashi et al.
patent: 5146888 (1992-09-01), Sawamoto
patent: 5176123 (1993-01-01), Hosoda et al.
patent: 5178117 (1993-01-01), Fujimoto et al.
Ford Motor Company
Lippa Allan J.
May Roger L.
Nelli Raymond A.
LandOfFree
Idle speed and fuel vapor recovery control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Idle speed and fuel vapor recovery control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Idle speed and fuel vapor recovery control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1807821