Bearing and screw compressor

Details Bearing and screw compressor Bearing and screw compressor

2006-11-28

2006-11-28

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Plain bearing

C384S448000

Reexamination Certificate

active

07140779

ABSTRACT:
In a bearing constituted by a plural-layer slide member, the plural-layer slide member comprises a resin layer of polytetrafluoroethylene as a slide member and a backing strip to which the resin layer is bonded. A fitting hole having a depth exceeding the thickness of the resin layer is formed from the resin layer side. A temperature measuring metallic member formed of a white metal is fitted in the fitting hole. A temperature sensor is positioned within the temperature measuring metallic member. This bearing permits an accurate detection of its temperature. Further, in an oil cooled screw compressor having a bearing lubricating oil supply pipe, a slide surface of the bearing is covered with polyether ether ketone. Even if foaming occurs in the oil, it is possible to prevent the occurrence of a mechanical trouble such as galling.

REFERENCES:
patent: 4721399 (1988-01-01), Grosskurth et al.
patent: 5821204 (1998-10-01), Kato et al.
patent: 2000-186688 (2000-07-01), None
patent: 2002-168242 (2002-06-01), None
patent: 2002-194380 (2002-07-01), None
Takao Ohama, et al., High-pressure Oil-flooded Screw Compressors [EH Series], R&D Kobe Steel Technical Report, vol. 49, No. 1, Apr. 1999, pp. 32-35.

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