Patent ID: 8307799

Claim:
A lubrication system for a fuel pump of an engine, comprising: at least one oil supply hole formed radially in a journal of a camshaft; an oil channel formed in a cam cap rotatably connected to the journal of the camshaft and selectively communicating with the at least one oil supply hole; a nozzle formed in the cam cap and being in fluid connection with the oil channel to inject oil to a contact portion between a pump-driving cam of the camshaft and an operational member of the fuel pump driven by the pump-driving cam; and a fluid communication control member selectively connecting the oil channel and the at least one oil supply hole in accordance with rotation of the camshaft, wherein the fluid communication control member is a connection groove formed in a journal contact surface of the cam cap across the oil channel with a predetermined length along a rotational direction of the at least one oil supply hole to fluid-communicate with the oil channel.