Internal combustion engines

Details Internal combustion engines Internal combustion engines

1976-09-03

1978-11-07

Lazarus, Ira S.

Internal-combustion engines

Miscellaneous

Fuels, lubricants and additives

123 52M, 123141, F02B 7512

Patent

active

041239962

ABSTRACT:
A spark ignited Otto cycle type engine have a fixed compression ratio which is supplied with a mixture of air and fuel having an octane number lower than that which would normally be appropriate for the compression ratio. The engine operates in a range below a predetermined high load without spontaneous combustion of the fuel-air mixture but will be susceptible to spontaneous combustion when operated above the predetermined high load. The engine includes means for controlling combustion of the fuel-air mixture when operating above the predetermined high load in a manner to decrease the efficiency of the engine and to prevent spontaneous combustion which would otherwise occur.

REFERENCES:
patent: 3693606 (1972-09-01), Hardenberg
patent: 3820522 (1974-06-01), Scherenberg
patent: 3874357 (1975-04-01), List et al.
patent: 3933142 (1976-01-01), List et al.

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