Pumps – Processes
Reexamination Certificate
2008-05-20
2008-05-20
Freay, Charles G (Department: 3746)
Pumps
Processes
C417S221000, C417S284000, C417S306000, C417S501000, C418S201200, C092S163000, C092S18100P
Reexamination Certificate
active
07374406
ABSTRACT:
A method and system is provided for reducing chatter in multi-capacity compressors having disengageable eccentric structures. The multi-capacity fluid compressor includes a compression chamber having a discharge end and an inner surface. The compressor also includes a compression member having a disengageable eccentric structure allowing the compressor to provide discrete compression capacities. A valve portion is disposed adjacent to the discharge end of the compression chamber and is arranged and disposed to discharge a compressed fluid when the compression member has completed. A discharge arrangement is arranged and disposed to discharge at least a portion of fluid remaining in the compression chamber at the completion of the compression cycle. The discharge of at least a portion of the fluid remaining in the compression chamber reduces or eliminates forces on the disengageable eccentric structure to limit rotational acceleration of the disengageable eccentric structure.
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Hix Scott Garrison
Monk David Turner
Moody Bruce
Simerly Tyrone Scott
Trent Mark
Bristol Compressors, Inc.
Freay Charles G
McNees Wallace & Nurick LLC
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