Compressor having capacity modulation system

Details Compressor having capacity modulation system Compressor having capacity modulation system

2011-06-28

2011-06-28

Denion, Thomas E (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055100, C417S310000, C417S307000, C417S440000

Reexamination Certificate

active

07967583

ABSTRACT:
A compressor includes orbiting and non-orbiting scroll members meshingly engaged to form a series of compression pockets, including first pockets when the orbiting scroll member is in a first position. A first porting in the non-orbiting scroll member communicates with the first pockets during a portion of a compression cycle. The first pockets include a set of radially outermost pockets located radially inward relative to the first porting and isolated from communication with the first porting during the compression cycle. The first porting is aligned with a spiral wrap of the orbiting scroll member at a location radially outward from and directly adjacent the first pockets when the orbiting scroll member is in the first position. Additional porting communicates with each of the compression pockets located radially outward relative to the first pockets when the orbiting scroll member is in the first position.

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International Search Report dated Jan. 8, 2010 regarding International Application No. PCT/US2009/045665.
Written Opinion of the International Search Authority dated Jan. 8, 2010 regarding International Application No. PCT/US2009/045665.

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