Supplementary fuel system for enhancing low temperature engine o

Details Supplementary fuel system for enhancing low temperature engine o Supplementary fuel system for enhancing low temperature engine o

1982-07-09

1984-04-10

Cross, E. Rollins

Internal-combustion engines

Charge forming device

Combined liquid and gaseous fuel

123179G, 123180R, 123576, 123577, 123578, 48189, F02M 2102

Patent

active

044414757

ABSTRACT:
A supplementary fuel system adds propane to the induction passage of an ethanol fueled engine to start and sustain operation of the engine at low temperatures. The propane flow is cycled on and off during cranking of the engine and the propane delivery pressure is varied with induction passage pressure.

REFERENCES:
patent: 3540419 (1970-11-01), Fox
patent: 3738334 (1973-06-01), Farr
patent: 3789820 (1974-02-01), Douglas et al.
patent: 4068639 (1978-01-01), Cook
patent: 4364370 (1982-12-01), Smith et al.
patent: 4369751 (1983-01-01), Batchelor et al.
patent: 4370969 (1983-02-01), Zarrelli et al.

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