Patent ID: 9638329
Date: 2017-05-02
CPC Classifications: F02F,F16J

Claim:
1. An engine rear seal installed to an engine rear portion in which an end plate is arranged on a motor exterior side of a housing, and a flywheel connected to a shaft is arranged further on a motor exterior side of said end plate, the engine rear seal comprising: an oil seal installed to an inner periphery of a shaft hole of said housing, said oil seal slidably coming into close contact with a peripheral surface of said shaft; and a water preventing seal arranged on a motor exterior side of said oil seal, wherein said water preventing seal integrally includes: wherein said seal lip has a lip end back surface portion having an inclined surface shape with an outer diameter that progressively decreases away from the end surface, wherein said seal lip is constructed by: wherein said seal lip is structured such that said lip end is in contact with the end surface when said shaft rotates at a low speed, and said lip end moves away from the end surface due to centrifugal force when said shaft rotates at a high speed, wherein a metal ring is embedded in the attaching portion, the metal ring including: wherein said flange has: wherein said seal lip extends from said distal end of said flange toward said outer side in said diametrical direction wherein said cylindrical base of said metal ring axially extends from said flange of said metal ring toward said sealing fluid side so as to be radially juxtaposed with a circumferential inner surface of said end plate, and