Fuel pumping apparatus

F - Mech Eng,Light,Heat,Weapons – 02 – M

Patent

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Details

123/123, 103/4

F02M 59/06 (2006.01) F02M 41/14 (2006.01)

Patent

CA 1049845

ABSTRACT OF THE DISCLOSURE A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a plunger reciprocable within a bore, pump means for supplying fuel to the bore to urge the plun- ger in an outward direction, a cam for impating inward movement to the plunger to displace fuel form the bore through an outlet and stop means for determining the maximum outward movement of the plunger. The stop means includes a stop member which can be positioned by first and second devices one of which determines whether excess fuel will be supplied for starting purposes and the other of which determines the normal maximum amount of fuel for operation of the engine once it has started. The engine is super- charged and the device includes a pressure responsive diaphragm which is subject to the outlet pressure of the supercharger. The diaphragm effects movement of a member from a first position to a second position and the member is operatively connected to a further member which determines the setting of said stop means. In the second position of the member an increased quantity of fuel is supplied to the bore for subsequent delivery to the engine when the supercharger of the engine is in operation.

267387

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