F - Mech Eng,Light,Heat,Weapons – 02 – D
Patent
F - Mech Eng,Light,Heat,Weapons
02
D
103/3
F02D 1/00 (2006.01) F02M 41/14 (2006.01) F02M 59/02 (2006.01)
Patent
CA 1073268
ABSTRACT OF THE DISCLOSURE A fuel injection pump for an internal combustion engine comprises a rotor, a pair of plungers located in a transverse bore formed in the rotor and to which inward movement is imparted by roller shoes which support respective rollers en- gaged by a cam ring having cam lobes on its internal periphery. The roller shoes are engageable by stop members, the roller shoes and stop members having complementary surfaces with a continuous and/or discontinuous profile thereby to allow variation of the maximum fuel amount delivered to the engine. The roller shoes are axially displaceable by hydraulic driving means fed by a pressure which is made dependent on the air pressure introduced into the engine by a valve comprising a piston slidable in a cylinder and subject to the action of air pressure responsive means and a discharge port the effective section of which is adjustable by the position of the piston.
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