Internal-combustion engines – Charge forming device – Auxiliary air or gas used to inject fuel
Patent
1989-05-05
1991-06-18
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Auxiliary air or gas used to inject fuel
123531, 2395332, F02M 2300
Patent
active
050242024
ABSTRACT:
A method and apparatus for metering fuel to an engine wherein a continuous supply of fuel is provided by a pump (14) to a fixed capacity chamber (11) and gas under pressure is admitted periodically to said chamber to maintain in the chamber a pressure not greater than the fuel pressure, so that fuel will flow into the chamber as long as there is a pressure differential between the gas in the chamber and the fuel supply. A delivery port (20) in said chamber is open for substantially the duration of the period that gas is admitted to the chamber so that the fuel in the chamber at the time of admission of gas thereto, and fuel entering the chamber during the period of admission of gas, is delivered from the delivery port (20) to the engine. The pressure differential between the fuel supply and the gas in the chamber is controlled in accordance with the fuel demand of the engine to control the quantity of fuel delivered each cycle to the engine. A preferred form of each of a fuel referecing regulator (34), a fuel pressure regulator ( 16) and a metering and injection unit (25) are also disclosed.
REFERENCES:
patent: 3285233 (1966-11-01), Jackson
patent: 4368714 (1983-01-01), Emmenthal
patent: 4381077 (1983-04-01), Tsumura
patent: 4387696 (1983-06-01), Yogo
patent: 4465050 (1984-08-01), Igashira
patent: 4693224 (1987-09-01), McKay
patent: 4754735 (1988-07-01), Simons
patent: 4794902 (1989-01-01), McKay
patent: 4823756 (1989-04-01), Ziejewski
patent: 4841942 (1989-06-01), McKay
Miller Carl Stuart
Orbital Engine Company Proprietary Limited
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