Internal-combustion engines – Charge forming device – Having fluidic logic control means
Patent
1981-11-10
1984-05-08
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Having fluidic logic control means
123587, F02M 3700, F02B 7310, F02M 2506, F01N 300
Patent
active
044468342
ABSTRACT:
A system for feedback control of the air-fuel ratio in a carburetor for an automotive internal combustion engine. The control system includes an auxiliary air bleed passage in the main air bleed of a fuel passage, an electromagnetic valve to periodically open and close the auxiliary air bleed passage, an exhaust sensor to detect a specific component of the exhaust gas as an indication of actual air-fuel ratio, and a control circuit to control the electromagnetic valve based on the output of the exhaust sensor. A vacuum passage connects the auxiliary air bleed passage at a section upstream of the electromagnetic valve to a venturi of the intake passage. A vacuum-responsive valve in the vacuum passage dilutes air admitted through the auxiliary air bleed passage with the venturi vacuum during higher speed operation of the engine to compensate for a tendency of the air through the auxiliary air bleed passage to be augmented.
REFERENCES:
patent: 3330544 (1967-07-01), Ozersky
patent: 3796049 (1974-03-01), Hayashi
patent: 4103654 (1978-08-01), Nakamura
Arai Shoji
Kunome Yoshimi
Yoneda Kenji
Nelli Raymond A.
Nissan Motor Co,. Ltd.
LandOfFree
System for feedback control of air-fuel ratio in internal combus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for feedback control of air-fuel ratio in internal combus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for feedback control of air-fuel ratio in internal combus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1597050