Patent ID: 7670111

Claim:
A compressor seal for sealing a shaft of the compressor, comprising: a first seal part of a first material that is adapted to engage a housing of the compressor; a second seal part of a second material different from the first material; a stiffening part of a material different from the material of the first and second seal parts; the first seal part including, toward an axial side of the first seal part, a sealing lip adapted to sealingly contact the shaft; the second seal part possessing oppositely facing and radially extending first and second surfaces, the radially extending first surface of the second seal part being fixed to a radially extending surface of the first seal part; the radially extending second surface of the second seal part being exposed along its entire radial extent; the second seal part including a radially inner area extending axially toward the sealing lip and adapted to engage the shaft when the compressor seal is properly installed; the radially inner area of the second seal part which extends axially towards the sealing lip being spaced from the sealing lip so that an axial end of the radially inner area of the second seal part does not contact the sealing lip when the compressor seal is properly installed; wherein the compressor seal comprises an outer hollow cylindrical section, a perforated disk section connected to an axial end of the outer hollow cylindrical section and extending radially inwardly, and an inner hollow cylindrical section connected to an inside edge of the perforated disk section and extending away from the outer section when the compressor seal is installed properly.