Patent ID: 6098577
Filing Date: 2000-08-08
Classification: F01M,F01P

Abstract:
An internal combustion engine cooling device, comprising:a cylinder having a lower end with an oil reservoir;a piston that moves inside said cylinder; anda crankshaft mounted on a bottom end of said cylinder, said crankshaft is connected to said piston, said crankshaft has a counterweight that aids a rotating movement of said crankshaft, said counterweight has a oil reserve duct with an oil duct inlet and an oil exit machined into said counterweight such that said oil reserve duct is an integral element of said counterweight, said counterweight dips into oil in said oil reservoir during said rotating movement so that said oil reserve duct receives oil through said oil duct inlet during said rotating movement, a centrifugal force then causing said oil to exit said oil reserve duct through said oil exit when said counterweight is at an uppermost position in said cylinder during said rotating movement, such that said cylinder and said piston are cooled and lubricated by said oil.