초록 ▼

A poppet and seat assembly comprises a poppet having a circular imperforate head portion at one poppet end and has an opposite end adapted for connection with a poppet actuator. The poppet head includes a valve seat interface surface along an outside head surface that tapers upwardly, moving radiall

A poppet and seat assembly comprises a poppet having a circular imperforate head portion at one poppet end and has an opposite end adapted for connection with a poppet actuator. The poppet head includes a valve seat interface surface along an outside head surface that tapers upwardly, moving radially outwardly from the head, at an angle in the range of from 8 to 25 degrees. The poppet includes a flange that extends radially around the head and that defines a terminal outside diameter edge of the poppet. The flange includes a tongue that projects axially away from the flange. A diaphragm extends radially around the poppet head and is interposed between the poppet head and the flange to enable poppet head movement relative to the flange. The poppet head, flange and diaphragm are all part of a one-piece construction. The assembly also comprises a circular poppet seat that is positioned adjacent to and opposite from the poppet. The seat has a poppet interface surface that tapers upwardly moving radially inwardly towards a radial axis of the seat in the range of from about 2 to 30 degrees. Together, the interacting poppet and seat surfaces are specifically designed to enable high efficiency actuation of the poppet vis-a-vis the seat to provided seating and unseating operation of the assembly. Additionally, the poppet and seat interface surfaces are cleanly swept and devoid of any surface features that could cause unwanted fluid hold up.

대표청구항 ▼

[ What is claimed is:] [1.] A poppet and seat assembly for use in a fluid handling device comprising:a poppet comprising:a circular imperforate head portion at one poppet end and having an opposite end adapted for connection with a poppet actuator;a valve seat interface surface along an outside surf

[ What is claimed is:] [1.] A poppet and seat assembly for use in a fluid handling device comprising:a poppet comprising:a circular imperforate head portion at one poppet end and having an opposite end adapted for connection with a poppet actuator;a valve seat interface surface along an outside surface of the head that tapers upwardly moving radially outwardly from the head at an angle in the range of from 8 to 25 degrees;a flange extending radially around the poppet head and defining a terminal outside diameter edge of the poppet, the flange including a tongue that projects axially away from the flange; anda diaphragm extending radially around the poppet head and interposed betweenthe poppet head and the flange to enable poppet head movement relative to the flange,the head, flange and diaphragm being a one-piece construction;a circular poppet seat positioned adjacent the poppet, the seat having a poppet interface surface that tapers upwardly moving radially inwardly towards a radial axis of the seat in the range of from about 2 to 30 degrees;wherein actuation of the poppet causes the poppet to move towards the seat to form a leak-tight seal between the poppet seat interface surface and the valve poppet interface surface.