Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Reexamination Certificate
2006-11-28
2006-11-28
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
C418S055100, C418S057000
Reexamination Certificate
active
07140851
ABSTRACT:
An axial compliance mechanism of a scroll compressor is installed between a compressor housing and a scroll. The housing has a first shell and a second shell. The first shell defines a chamber and has a guiding part at one end of and in communication with the interior of the chamber. The scroll has a fixed scroll member and an orbiting scroll member. A plurality of compression pockets is formed between these two scroll members. A rear surface of the fixed scroll member has a protrusion matching the guiding part of the first shell and a venting hole in communication with the compression chambers. A sealing device is installed between the guiding part and the protrusion, and a negative pressure chamber is formed. Thereby, the working fluid is guided into the negative pressure chamber during operation, so as to provide a tight attachment between the fixed scroll member and the orbiting scroll member, such that the volume efficiency of the compressor is enhanced.
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Chyn Tec. International Co. Ltd.
Trieu Theresa
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