Automatic Fuel Shutoff

摘要

A combination lever for a carburetor is an integrated shutoff lever and fuel valve. The combination lever includes a longitudinal portion for a handle and a cylindrical portion including a fuel path for the fuel valve. A carburetor casing is shaped to form a valve chamber and a carburetor chamber. The valve chamber supports the cylindrical portion. A directional cavity formed in the cylindrical portion of the combination lever regulates a flow of fuel to the carburetor chamber according to a rotation of the combination lever. At one position the directional cavity opens the fuel path so that fuel flows into the carburetor chamber. At another position the directional cavity closes the fuel path so that the flow of fuel is blocked. The combination lever may also include an abutment portion to engage a switch for completing an electrical shutoff path to an engine coupled to the carburetor.

主权项

1. A carburetor comprising:
a carburetor chamber configured to mix air and fuel; a fuel valve chamber configured to supply the fuel to the carburetor chamber; a carburetor chassis including the fuel valve chamber and the carburetor chamber; a combination lever including a longitudinal handle and a cylindrical portion, wherein the fuel valve chamber is configured to support the cylindrical portion; a directional cavity formed in the cylindrical portion of the combination lever and configured to regulate a supply of the fuel to the carburetor chamber according to a rotation of the combination lever; and an abutment portion of the combination lever configured to engage a switch for completing an electrical shutoff path to an engine coupled to the carburetor.