Oil passage construction for die-cast formed product, and...

Details Oil passage construction for die-cast formed product, and... Oil passage construction for die-cast formed product, and...

2006-11-06

2009-11-10

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Lubrication

C123S090340, C123S090160

Reexamination Certificate

active

07614373

ABSTRACT:
The inner surface of an oil passage in a member which is made as a die-cast formed product is made as a molded surface. By this structure, permeation of oil from the inner surface of the oil passage into the thickness portion of the member which is made as a die-cast formed product, and leakage thereof out to the exterior, is prevented.

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