PISTON WITH ENHANCED COOLING AND ENGINE ASSEMBLY EMPLOYING THE SAME

摘要

A piston of an internal combustion engine is provided and includes a piston skirt enclosing at least a portion of an underside of a piston crown. A cooling oil passageway is provided on the underside of the piston and extends from a first part to a second part of the underside, where the first part is closer than the second part to a fluid flow from a cooling oil source. The cooling oil passageway may include a main channel and a branch channel extending from the main channel at an angle.

主权项

1. An engine comprising:
a piston comprising a piston crown and an opposed underside encircled by a piston skirt, a cooling oil guide positioned on and extending between first and second parts of the underside; and a cooling oil source providing a jet of cooling oil to a first part of the underside; wherein the guide is shaped to direct oil of the jet from the first part to the second part of the underside.