Patent ID: 6089199
Filing Date: 2000-07-18
Classification: F02B,F02F,F02M

Abstract:
An internal combustion engine comprising:a combustion cylinder bank comprising a head that include valves and operating mechanisms for operating the valves in suitably timed relation to engine operation for selectively allowing and disallowing ingress and egress of combustion and combusted gases into and out of combustion cylinders of the bank; andan air cleaner module comprising an air box that includes a cover which closes on the head to cover the operating mechanism for operating the valves and at least a portion of which forms a wall portion of an air box space that is internal to the air box, a combustion air inlet via which combustion air enters the air box space, and a combustion air outlet via which combustion air exits the air box space;in which the air cleaner module further includes an air filter element disposed within the air box for filtering particulate material from air that passes through the air box, and the cover further includes a breather passage that provides for filtered air to pass from the air box to the space enclosed by closure of the cover on the head; andin which the engine comprise an engine block, a crankcase, and passageways providing for filtered air that has passed through the breather passage to pass through the block to the crankcase.