公开(公告)号：DE60025572D1

公开(公告)日：2006-04-06

申请号：DE60025572

申请日：2000-04-07

Applicant: SAINT GOBAIN PERFORMANCE PLAST

Inventor： SIEVERS THOMAS J ,  FREGOSO MARIO

IPC: F16K7/17 ,  F16K41/10 ,  F16K7/12 ,  F16K25/00 ,  F16K31/122 ,  F16K41/02

Abstract: A poppet and seat assembly (10) comprises a poppet (34) having a circular imperforate head portion at one poppet end and has an opposite end adapted for connection with a poppet actuator (32). The poppet head (34) includes a valve seat interface surface (38) 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 (128) that extends radially around the head and that defines a terminal outside diameter edge of the poppet. The flange includes a tongue (132) that projects axially away from the flange. A diaphragm extends radially around the poppet head (34) and is interposed between the poppet head (34) and the flange (128) to enable poppet head movement relative to the flange. The poppet head (34), flange (128) and diaphragm are all part of a one-piece construction. The assembly also comprises a circular poppet seat (36) that is positioned adjacent to and opposite from the poppet (34). The seat (36) has a poppet interface surface (40) 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 (38) and seat surfaces (40) are specifically designed to enable high efficiency actuation of the poppet (34) vis-a-vis the seat (36) to provided seating and unseating operation of the assembly. Additionally, the poppet (38) and seat interface surfaces (40) are cleanly swept and devoid of any surface features that could cause unwanted fluid hold up.

公开(公告)号：AU4208400A

公开(公告)日：2000-10-23

申请号：AU4208400

申请日：2000-04-07

Applicant: SAINT GOBAIN PERFORMANCE PLAST

Inventor： NGUYEN HY BA ,  FREGOSO MARIO ,  SIEVERS THOMAS J

IPC: H01F7/02

Abstract: An encapsulated magnet assembly comprises a non-metallic housing and a magnet disposed within a housing magnet chamber. A housing end cap is fuse bonded to the housing to encapsulate the magnet therein and form an air and fluid-tight seal with the housing. An insulating spacer is interposed between an exposed surface of the magnet and the end cap before assembly and fuse bonding, and is formed from a thermally insulating material to prevent the transmission of thermal energy to the magnet during the fuse bonding process. The insulating spacer serves to protect the magnet from unwanted thermally induced magnetic field losses. The housing also includes one or more projections that extend into the magnet chamber and that cooperate with complementary grooves in the magnet to prevent the magnet from rotating within the chamber.