Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1997-11-26
2000-04-11
Denion, Thomas
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 554, 418 57, F01C 102
Patent
active
060481846
ABSTRACT:
A back-pressure sealing system for a revolving compressor, comprising: a stator with an outlet on the upper side and a neck, surrounding the outlet; a separating part above the stator, separating a low-pressure zone around the stator from a high-pressure zone above the outlet and having a central opening around the neck; a connecting system between the upper and lower sides of the separating part; a first sealing device for sealing the neck of the stator against the central opening of the separating part; and a second sealing device for sealing the connecting system; wherein the back-pressure from the high-pressure zone is used to tighten the first and second sealing devices for a good sealing effect and thus good effectiveness of the compressor.
REFERENCES:
patent: 5474433 (1995-12-01), Chang et al.
Chang Yu-Choung
Hsiao Tse-Liang
Huang Ann
Lai Ching-Feng
Liang Kun-I
Denion Thomas
Industrial Technology Research Institute
Liauh W. Wayne
Trieu Theresa
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