Scroll compressor having a back-pressure chamber control valve

Details Scroll compressor having a back-pressure chamber control valve Scroll compressor having a back-pressure chamber control valve

2006-10-10

2006-10-10

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055100, C418S057000, C418S015000, C137S505130

Reexamination Certificate

active

07118358

ABSTRACT:
There is provided a scroll compressor having high overall adiabatic efficiency and reliability in a wide pressure operating range. A backside excess-suction-pressure region is provided such that pressure higher than suction pressure by a constant value is applied to a backside of scroll members to produce an attractive force to attract both scroll members. A control bypass is also provided for communicating compression chambers with a discharge system only when pressure in the compression chambers is high.

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