Internal-combustion engines – Igniters – Incandescent
Patent
1977-03-10
1979-01-09
Cox, Ronald B.
Internal-combustion engines
Igniters
Incandescent
123119A, 123148DS, F02P 100
Patent
active
041333306
ABSTRACT:
An internal combustion engine of the reciprocating piston type, which is provided with an exhaust gas recirculation circuit to suppress the formation of NOx and has two or three spark plugs for each combustion chamber. There is a substantial overlap of the opening periods of exhaust and intake valves, so that a portion of the combustion gas is left unexhausted. The combustion chamber has a simple shape such as hemisphere, and the spark gaps of the plural spark plugs are arranged distant from each other in each combustion chamber so as to respectively share approximately equally divided portions of each combustion chamber. The number of the spark plugs is two when the volume of the recirculated exhaust gas, including the unexhausted combustion gas, is about 50% at the maximum of the volume of air admitted into the combustion chamber but three when the recirculated exhaust gas amounts to about 60% of the air at the maximum.
REFERENCES:
"Basic Cams, Valves, & Exhaust Systems," Peterson Publications, p. 129, Jul. 1972.
"Multiple Spark Plugs May Mean More Power", U.S. Army, McCook Field, date uncertain.
Hayashi Yoshimasa
Nakajima Yasuo
Yoshimura Tooru
Cox Ronald B.
Nissan Motor Company Ltd.
LandOfFree
Multi-point spark ignition engine provided with exhaust recircul does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-point spark ignition engine provided with exhaust recircul, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-point spark ignition engine provided with exhaust recircul will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1784305