Dual volume-ratio scroll machine

Details Dual volume-ratio scroll machine Dual volume-ratio scroll machine

2006-07-11

2006-07-11

Freay, Charles G (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Having condition responsive pumped fluid control

C417S212000, C418S055100

Reexamination Certificate

active

07074013

ABSTRACT:
The present invention provides the art with a scroll machine which has a plurality of built-in volume ratios along with their respective design pressure ratios. The incorporation of more than one built-in volume ratio allows a single compressor to be optimized for more than one operating condition. The operating envelope for the compressor will determine which of the various built-in volume ratios is going to be selected. Each volume ratio includes a discharge passage extending between one of the pockets of the scroll machine and the discharge chamber. All but the highest volume ration utilize a valve controlling the flow through the discharge passage.

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