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The LPG fuel supply system according to claim 9 in which said valve activating means comprises:Ī diaphragm responsive to engine manifold pressure Ī pivotally mounted lever connected for movement with said diaphragm The LPG fuel supply system according to claim 8 in which said fuel flow regulating valve comprises:Ī part between said vaporizing chamber and said air-fuel mixing chamber įuel flow parts in said first valve head Ī second valve head within said first valve head for opening and closing said parts.ġ0.
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The LPG fuel supply system according to claim 7 in which said valve activating means is adapted to open one of said dual valves during low volume flow and open both of said valves during high volume flow.ĩ. Said fuel flow regulating valve actuating means adapted to activate said duel concentric valve means sequentially.Ĩ. The LPG fuel supply system according to claim 1 in which said fuel flow regulating valve means comprises:
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The LPG fuel supply system according to claim 2 in which said fuel inlet valve means includes:Ī pivotally mounted lever for opening and closing said valve andĬonnecting means connecting said lever to said diaphragm for movement therewith.ħ. The LPG fuel supply system according to claim 4 wherein said means for adjusting the biasing force comprises:Ī threaded washer attached to said spring Ī screw threaded through said washer whereby rotation of said screw increases or decreases the compression of said coil spring.Ħ. The LPG fuel supply system according to claim 3, including means for adjusting the force applied by said biasing spring on said diaphragm thereby adjusting said predetermined pressure.ĥ.
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The LPG fuel supply system according to claim 2 wherein said biasing means is a coil spring behind said diaphragm.Ĥ. The LPG fuel supply system according to claim 1 in which said fuel inlet valve means comprises:Ī flexible diaphragm in said vaporizing chamber operatively connected to said fuel inlet valve īiasing means biasing said diaphragm to hold said fuel inlet valve open when the pressure in said fuel vaporizing chamber is below a predetermined amount.ģ. Mounting adapter means for mounting said housing on a carburetor of an internal combustion engine.Ģ. An LPG fuel supply system for internal combustion engines comprising:Ī housing having a fuel vaporizing chamber, a hot fluid circulating chamber adjacent said fuel vaporizing chamber and an air-fuel mixing chamber įuel inlet conduit means to said vaporizing chamber įuel inlet valve means in said vaporizing chamber responsive to the pressure in said vaporizing chamber to control the flow of fuel from said inlet conduit to said vaporizing chamber įuel flow regulation valve means between said fuel vaporizing chamber and said air-fuel mixing chamber įuel flow regulating valve activating means responsive to downstream pressure for activating said fuel flow regulating valve means andĪir inlet means to control the flow of air to said air-fuel mixing chamber