Internal-combustion engines – Rotary – With charge treatment means
Patent
1976-03-19
1978-04-18
Gordon, Clarence R.
Internal-combustion engines
Rotary
With charge treatment means
123242, 60901, 123119A, F02B 5310
Patent
active
040845494
ABSTRACT:
Exhaust gas recycling means by which exhaust gas is recycled and introduced, via a port which is formed in the peripheral wall of a rotary piston engine and which port may also serve for introduction of air or an air-fuel mixture required for low-speed operation of the engine, into a leading zone of an intake chamber. Since the port formed in the peripheral wall is so disposed that the air or air-fuel mixture introduced therethrough tend to be stratified at the leading zone of the intake chamber, the recycled exhaust gas also tends to be stratified at the same leading zone so that the recycled exhaust gas tends to exist in vicinity of the spark plug, whereby less exhaust gas is required to be recycled since a given amount of exhaust gas is more effective in preventing production of nitrogen oxides, and there is correspondingly less engine wear and attendant production of hydrocarbons or similar compounds.
REFERENCES:
patent: 3507261 (1970-04-01), Myers
patent: 3780707 (1973-12-01), Cole
patent: 3791145 (1974-02-01), Yamamoto
patent: 3795228 (1974-03-01), Shimizu
patent: 3867910 (1975-02-01), Galonska
patent: 3905337 (1975-09-01), Shimoji
patent: 4009689 (1977-03-01), Walters
Gordon Clarence R.
Toyo Kogyo Co. Ltd.
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