Pumps – Condition responsive control of drive transmission or pump... – Adjustable cam or linkage
Reexamination Certificate
2008-04-29
2008-04-29
Kramer, Devon C. (Department: 3746)
Pumps
Condition responsive control of drive transmission or pump...
Adjustable cam or linkage
C417S222100, C417S269000, C417S270000
Reexamination Certificate
active
07364408
ABSTRACT:
The invention provides a compressor with a shut off valve disposed between the crank case and the suction cavity. The valve is moveable between an open and closed position in response to the pressure in the discharge cavity of the compressor. The valve is an on/off valve and is operable rapidly depressurize the interior of the crank case when the compressor transitions from a minimum stroke. The valve can define first and second fluid pathways. The first fluid pathway can be larger than the second fluid pathway and be selectively opened and closed. The second fluid pathway can be permanently open and act as a bleed between the crank case and the suction cavity.
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Bona Joseph M.
Skinner Timothy Joseph
Delphi Technologies Inc.
Frantz Jessica L
Griffin Patrick M.
Kramer Devon C.
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