Method and apparatus for generating and delivering gaseous fuel

Details Method and apparatus for generating and delivering gaseous fuel Method and apparatus for generating and delivering gaseous fuel

1979-06-04

1981-02-10

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Heating of combustible mixture

123558, F02M 3100

Patent

active

042495024

ABSTRACT:
A hermetically sealed housing provides an enclosure for low and high pressure gaseous fuel vapor chambers and for a liquid fuel receiving reservoir which receives liquid fuel such as gas from the fuel tank of a vehicle. The reservoir has a vapor space above the liquid fuel therein, and a pair of vacuum operated pumps serve to pump vapor from the vapor space sequentially to the low and high pressure chambers. Check valves are provided to prevent backflow of gaseous vapor toward the vapor space, and the high pressure chamber is provided with an outlet connectable to the air induction passage of an internal combustion engine for delivering gaseous vapor thereto. The outlet from the high pressure chamber is connected to the air induction passage through a pressure regulator valve and throttle valves which are closed when the engine is shut down so that vapor is maintained in the second chamber at the high pressure thereof when the engine is stopped. The liquid fuel reservoir includes a unique dual needle valve arrangement to provide positive shutoff of liquid fuel flow into the reservoir and to minimize turbulance of liquid fuel flow into the reservoir.

REFERENCES:
patent: 353311 (1886-11-01), Keller
patent: 1629898 (1927-05-01), Williams
patent: 2261234 (1941-11-01), Delancey
patent: 2285905 (1942-06-01), Cunningham
patent: 3713429 (1973-01-01), Dwyre
patent: 3783841 (1974-01-01), Hirschler
patent: 3794000 (1974-02-01), Hodgkinson
patent: 3807377 (1974-04-01), Hirschler
patent: 4050419 (1977-09-01), Harpman
patent: 4146002 (1979-03-01), Quinn

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