Patent ID: 6062484
Filing Date: 2000-05-16
Classification: F16K,F25B

Abstract:
A thermally responsive cartridge for use in a refrigerant expansion valve comprising:(a) a fluid filled capsule including a pressure responsive moveable wall and including a hollow tubular extension member depending from said capsule;(b) a hollow plunger moveably received in said capsule and having an end thereof connected to said wall for movement therewith;(c) said extension member defining an annular valve seat distal said moveable wall wherein said extension member is adjustably attached to said capsule;(d) an obturator disposed for movement with respect to said valve seat, said extension member including structure operative to cage said obturator in position over said valve seat; and,(e) an operating member contacting said plunger and said obturator for effecting movement of said obturator in response to movement of said wall upon expansion and contraction of said fluid in said capsule, wherein said extension member includes a fluid flow port communicating said valve seat with the exterior thereof and said capsule is adapted for attachment to a valve block.