Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1994-03-11
1995-03-21
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
123527, 2395851, 23953312, 181229, F02M 2104, F02M 6100
Patent
active
053986571
ABSTRACT:
A gaseous fuel injection system has a fuel metering body having a tubular injector chamber with an expansion chamber at one closed end thereof; the expansion chamber having openings for the passage of fuel from the chamber to the exterior of the fuel metering body. Additionally, a spool type silencer is positioned between the expansion chamber and a fuel injector located at the end of the silencer opposite that of the expansion chamber. The silencer has a hollow cylindrical core with an inlet to receive fuel from the injector and a multiplicity of outlets for the passage of the fuel to an outer annular region. The outer annular region has an upper wall for support of the injector within the tubular injector chamber and a lower wall having openings for passage of the fuel from the annular region to the expansion chamber. The central core, the annular region and the expansion chamber cooperate to expand and silence compressed fuel as it moves from the outlet of the injector to the exterior of the fuel metering body.
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Cianfichi Kenneth P.
Press Roman J.
Barr Karl F.
General Motors Corporation
Nelli Raymond A.
Solis Erick
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