Liquified petroleum gas carburetor

Details Liquified petroleum gas carburetor Liquified petroleum gas carburetor

1984-05-31

1985-10-08

Cross, Ethel R.

Internal-combustion engines

Charge forming device

Gaseous fuel and air mixer

123577, 123 1A, 48189, 261 50A, F02B 4300

Patent

active

045453560

ABSTRACT:
A liquified petroleum gas carburetor (12) receiving LPG as a liquid and through a pair of pressure regulators (20, 30) and a heat exchanger (22) reducing the liquid to a vapor for ingesting into the engine (8). The heat exchanger (22) is mounted integral with the carburetor (12) and is contiguous with the intake manifold (24) thereby providing a large thermal mass for elevating the temperature of the LPG. Connected for synchronous movement are the fuel metering valve (40) and the air metering valve (10) for each carburetor bore. The fuel metering valve moves in response to the air metering valve (10). A vacuum pressure control (66) is shown to maintain a variable fuel/air ratio in response to engine requirements.

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