The rear side of the crankshaft oil seal structure

摘要

The subject innovation can improve the sealing property, in particular by contacting the oil chamber of oil attached to the crankshaft rear side in the radial direction and the circumferential direction of the engine relates to the oil chamber, which is installed ever prevent fluid leaks between the cylinder block and the crankshaft which relates to a rear end of the crankshaft oil seal structure.; And the oil chamber 90 of the present design is the oil chamber case 80 are bent in a "b" shape so that the inner circumferential surface in close contact in a direction on the outer surface of the inside reinforcing material 91 is inserted into the support 92, the support ( 92) is bent in a crank shaft (50) direction in the inner periphery of the protrusion on the part and the axial lip 94 is in close contact with the circumference of the crankshaft, that is the support 92 and the axial lip 94 is connected to the lateral direction five days and the lip portion formed by the slinger 96 is in close contact with the slinger chamber 70 is characterized.