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US 2006/0182164 A1Published application
Calcium silicate hydrate material for use as ballast in thermostatic expansion valve
AssigneeParker-Hannifin Corporation
InventorCharles Hart
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Abstract
A thermal sensing bulb for an expansion valve, the bulb containing a ballast material, the ballast material including a plurality of particles including a calcium silicate hydrate.
Claims18
A thermal sensing bulb for an expansion valve, the bulb containing a ballast material, the ballast material comprising a plurality of particles including a calcium silicate hydrate.
A refrigeration system comprising:
- a thermostatic expansion valve, said expansion valve comprising a thermal sensing bulb, said thermal sensing bulb comprising a working fluid, said working fluid sealed inside said thermal sensing bulb and in operative communication with said expansion valve;
- and
- a ballast in said thermal sensing bulb, said ballast including a plurality of particles comprising a calcium silicate hydrate.
A process for manufacturing a thermal sensing bulb for an expansion valve, comprising:
- providing a thermal sensing bulb for operative connection with an expansion valve;
- placing into the thermal sensing bulb a plurality of particles comprising a calcium silicate hydrate.
A process for manufacturing a thermal sensing bulb for a thermostatic expansion valve, comprising:
- providing a thermostatic expansion valve body;
- providing a thermal sensing bulb for use with the thermostatic expansion valve;
- combining ingredients comprising a silica component with a calcium source under conditions to form a plurality of particles including the calcium silicate hydrate;
- placing a plurality of the particles into the thermal sensing bulb;
- providing a working fluid for operative communication between the thermal sensing bulb and the thermostatic expansion valve;
- and
- sealing the working fluid in a space defined by the interior space of the thermal sensing bulb, a working space in the thermostatic expansion valve, and a communication channel between said thermal sensing bulb and said working space.
4 more elements
Dependencies are inferred from the claim text.