Patent ID: 7090221
Filing Date: 2006-08-15
Classification: F16J

Abstract:
1. A seal device for providing a seal against a sealing object fluid between a rotary shaft and a housing accommodating said rotary shaft extending therethrough, said seal device comprising: a seal ring mounted onto said housing and having a seal surface; a seal lip member arranged on an opposite side of said seal surface of said seal ring, an outer peripheral portion of said seal lip member being mounted on said housing, said seal lip member having a lip portion that is bent to be parallel relative to a longitudinal axis of said rotary shaft and extends toward a fluid side to be in fitting close contact with said rotary shaft; and a face end seal opposing said seal ring and fixed on said rotary shaft in a fluid tight seal manner, said face end seal having a protruding lip member extending from a lower end portion thereof toward said seal surface and being capable of forming close contact with said seal surface, wherein said protruding lip member is at an angle to said seal surface in radially outward a direction which is in a pressurized fluid side; and wherein said lip portion of said seal lip member is disposed inside an inner diameter surface of said seal ring for effecting a seal against the fluid.