Patent ID: 7448410
Filing Date: 2008-11-11
Classification: F16K,Y10T

Abstract:
1. A high differential pressure, low torque precision temperature control valve comprising; a fluid chamber; a fluid acceptance passageway, at least one fluid bypass passageway and a fluid discharge passageway each having interior and exterior edges; a valve body, having upper and lower stanchions, where said interior edge of said fluid acceptance and said interior edge of said fluid discharge passageways are axially disposed and appurtenant to opposite ends of said fluid chamber and said interior edge of said fluid bypass passageway is angularly disposed along the horizontal axis of said fluid chamber, interposed between said interior edge of said fluid acceptance passageway and said interior edge of said fluid discharge passageway, and appurtenant to said fluid chamber; an attachment means connected onto said exterior edge of said fluid acceptance said exterior edge of said fluid bypass and said exterior edge of said fluid discharge passageways; a plug centrally interposed therein said fluid chamber, spherically shaped, possessing an upper boss and a lower borehole centrally disposed on the parameter of said plug along the vertical axis of said plug, and a set of orifices diametrically opposed, juxtapositionally opposite, along the parameter of said plug along the horizontal axis of said plug and at least one orifice, corresponding to said bypass passageway, angularly aligned along the parameter of said plug along horizontal axis of said plug, where said horizontal axis of said plug is coincident with the horizontal axis of said fluid acceptance, said fluid bypass and said fluid discharge passageways, said upper boss is adapted to receive rotational transpositional means for said plug, said lower borehole adapted to forcibly receive a plate, said plate has externally mounted thereonto a lower stem receiving post; a two sided raceway circumferentially described onto and near said interior edge of said fluid acceptance, said interior edge of said bypass passageway, and said interior edge of said fluid discharge passageways, said raceway having a depth and a height component; a circumferential groove circumscribed within said raceway; a set of non-metallic sealing members, elliptical in profile, disposed within said circumferential grooves; a set of polymer based seals, polygonal in profile, in sustained contact with said plug, having a radiused face, a lower frontal area, an upper frontal area, a flat bottom less in length than said depth component of said raceway, and an exterior side adapted to receive a portion of said sealing member; a lower stem, superimposed internally, to said lower stanchion, stationaryily mounted to exterior end of said lower stanchion and bearingly mounted into said lower stem receiving post.