초록 ▼

A pressurized gas flow controlling microvalve having a casing and cap which together define a valve chamber having gas flow inlet and outlet ports and a plunger positioned within the valve chamber moveable from a closed position sealing the outlet port to an open position permitting gas to flow thro

A pressurized gas flow controlling microvalve having a casing and cap which together define a valve chamber having gas flow inlet and outlet ports and a plunger positioned within the valve chamber moveable from a closed position sealing the outlet port to an open position permitting gas to flow through the valve, the plunger having mounted thereon an O-ring which provides the seal for the outlet port.

대표청구항 ▼

[ What is claimed is:] [7.] A microvalve for controlling the flow of a pressurized gas comprising a casing defining a valve chamber with a central longitudinal axis, a shoulder formed by the casing and comprising a substantially flat surface area in a plane perpendicular to the longitudinal axis; at

[ What is claimed is:] [7.] A microvalve for controlling the flow of a pressurized gas comprising a casing defining a valve chamber with a central longitudinal axis, a shoulder formed by the casing and comprising a substantially flat surface area in a plane perpendicular to the longitudinal axis; at least one valve seat formed within the shoulder on an axis spaced from the central longitudinal axis and comprising only a small portion of the surface area of the shoulder; a plunger moveable along the longitudinal axis and comprising a front section operatively engaging the shoulder in a valve closed position, the plunger further comprising a compressible O-ring mounted on the front section of the plunger and having a front annular face engaging and being compressed against the shoulder in which only a portion of the front annular face covers the valve seat in the valve closed position to prevent the flow of gas through the casing.