Patent ID: 7500459

Claim:
A sealing device attached in an opening portion of a housing including a cylinder head cover in an internal combustion engine and sealing clearances between said housing and tubular members, including one of plug tubes and injection pipes, inserted into the opening portion of said housing, the sealing device comprising a flat mounting portion fixed to said housing, seal lips brought into close contact with outer peripheral surfaces of said tubular members and flexible deformation portions provided between said mounting portion and the seal lips, said mounting portion, said seal lips and said flexible deformation portions being made of an elastic material, said mounting portion has a plurality of tubular inner surfaces, in which said tubular members are inserted, each of said tubular inner surfaces being provided with each of said seal lips and each of said flexible deformation portions; and said mounting portion being formed into an oval shape in a plan view so that said tubular inner surfaces are juxtaposed in a same flat plane, and a metal ring embedded in a peripheral edge portion of said mounting portion.