F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/60
F02M 21/02 (2006.01)
Patent
CA 1333142
Device for the intelligent control of a venturi-type car- burettor unit for a gaseous fuel, including a pressure regulator, a main throttle valve in the airsuction pipe for control of the engine output and a regulating valve in the gassupply pipe between the pressure regulator and the venturi, said valve being coupled to the main throttle valve. By adjusting this mechanical system for providing a too rich air-fuel-mixture under all conditions, only minor adjustments of the mixture are necessary to provide the engine with the correct mixture required for each load/speed condition. Said requirements are stored in a processor, and the latter controls the necessary corrections of the mixture by diluting the gasflow to the main venturi with some air. To this end a small venturi is placed in the gaspipe, the gasflow sucking the diluting air through a mixing air regulating valve, which valve is controlled by the processor in a continuous, analogues intelligent way. Optionally an O2-sensor placed in the exhaust gases may send feed-backsignals to the pro- cessor for last corrections.
602785
Hoogeboom Adrianus Johannes Theodorus
Van Der Weide Jouke
Necam B.v.
Ridout & Maybee Llp
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