Patent ID: 6095105
Filing Date: 2000-08-01
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;a throttle module comprising a throttle valve for throttling combustion air; anda plenum module comprising a plenum chamber space receiving combustion air from the throttle module, runners for delivering air from the plenum chamber space to the cylinders, and 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 the plenum chamber space; in which the cover comprises a downwardly open recess that is cooperatively defined by the portion of the cover that forms a wall portion of the plenum chamber space and by a side wall that bounds the recess by extending from the portion of the cover that forms a wall portion of the plenum chamber space to a perimeter edge that seals to the cylinder head.