Automatic temperature and humidity regulation – Thermostatic – With pressure control
Reexamination Certificate
2005-08-20
2009-12-01
Norman, Marc E (Department: 3744)
Automatic temperature and humidity regulation
Thermostatic
With pressure control
C236S09300A, C236S100000
Reexamination Certificate
active
07624929
ABSTRACT:
The invention relates to a valve arrangement for an expansion valve, especially for cooling units in vehicle air conditioning systems, having a valve seat for receiving a valve-closing member, which, in a closing position, fits snugly in the valve seat and closes a passage between a coolant inlet side and a coolant outlet side, the valve seat or the valve-closing member having at least two zones, a first zone forming with the valve-closing member or with the valve seat, in a closing position, a sealing seat, and at least one further zone regulating a coolant mass flow flowing through the passage, and a gradient of the sealing-seat-forming zone differing from a gradient of the at least one further zone.
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Leschert Frank
Sohn Jürgen
Kriegsman & Kriegsman
Norman Marc E
Otto Egelhof GmbH & Co. KG
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