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

07967582

ABSTRACT:
A compressor includes a first porting extending through an end plate of an orbiting scroll member at an angular extent of at least twenty degrees and first and second spiral wraps defining modulated capacity pockets when the orbiting scroll is in a first position. The first modulated capacity pockets may include a set of radially outermost compression pockets located radially inward relative to the first porting and isolated from communication with the first porting during an entirety of the compression cycle. The first porting may align with the second spiral wrap at a location radially outward from and directly adjacent the first modulated capacity pockets when the orbiting scroll member is in the first position.

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International Search Report dated Jan. 4, 2010 regarding International Application No. PCT/US2009/045666.
Written Opinion of the International Searching Authority dated Jan. 4, 2010 regarding International Application No. PCT/US2009/045666.

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