Patent ID: 8240281
Filing Date: 2012-08-14
Classification: F01M,F02F

Abstract:
1. A head cover of an internal combustion engine in which a fastening plane between the head cover and an engine main body is inclined with respect to a horizontal plane when the engine is mounted in a vehicle, the head cover comprising: a cap attachment boss to which an oil filler cap can be detachably attached, the cap attachment boss having an oil inlet inside thereof; and an oil outflow prevention wall formed around the cap attachment boss, wherein an oil trap portion surrounding the cap attachment boss is defined between the cap attachment boss and the oil outflow preventing wall, and wherein a height of an upper end of the oil outflow prevention wall with respect to the fastening plane is greater in a lower side of the inclination of the fastening plane than in a higher side of the inclination of the fastening plane.