Carburetor assembly for an internal combustion gas engine

Details Carburetor assembly for an internal combustion gas engine Carburetor assembly for an internal combustion gas engine

F - Mech Eng,Light,Heat,Weapons

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F02D 11/10 (2006.01) F02D 9/10 (2006.01) F02M 21/04 (2006.01) F02B 43/00 (2006.01)

Patent

CA 2139629

A carburetor assembly having a venturi element for fuel metering and a throttle valve for controlling the flow of an air and natural gas mixture to the combustion engine wherein a stepper motor is used to angularly position a throttle valve plate in the gas flow path to the carburetor, the throttle valve plate being carried on a throttle valve shaft that forms an extension of the armature of the stepper motor wherein provision is made for sealing the stepper motor at a location on the axis of rotation of the throttle valve element, the throttle valve shaft being mounted without the necessity for using throttle valve shaft bearings or a separate seal, thereby minimizing friction and any tendency for a misalignment to occur.

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