Internal-combustion engines – Charge forming device – Combined liquid and gaseous fuel
Patent
1987-12-28
1989-05-23
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Combined liquid and gaseous fuel
123 27GE, 123575, F02M 2102
Patent
active
048319937
ABSTRACT:
This is concerned with a method of operating a dual-fuel engine, meaning an engine that is supplied with a mixture of gaseous fuel and air which is ignited by an injection of a small amount of so-called pilot oil which is diesel fuel. Additionally the invention is concerned with a method of operation that injects an approximately constant amount of pilot oil regardless of speed variations so as to save fuel at the higher speeds and is specifically applicable or useful with over-the road dual fuel engines, meaning mobile units on trucks, tractors, etc.
REFERENCES:
patent: 4520766 (1985-06-01), Akeroyd
patent: 4597364 (1986-07-01), Young
patent: 4637353 (1987-01-01), Codrington
patent: 4708094 (1987-11-01), Helmich
patent: 4742801 (1988-05-01), Kelgard
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