Poppet Valve Assembly, System, and Apparatus for Use in High Speed Compressor Applications

摘要

A miniature poppet valve assembly for a high-speed compressor, the miniature poppet valve assembly includes a plurality of miniature poppets, each characterized by a stem and a head with a maximum head diameter of no more than 0.9 inches; a cage having a plurality of counter bores disposed therein, each counter bore disposed for receipt of a poppet; and a seat plate overlying the cage, the seat plate including a plurality of through bores axially aligned with the counter bores of the cage. Each counter bore includes a chamfered edge against which the head of the poppet seats, thereby forming a seal. The chamfered edged is provided with a chamfer angle of approximately 30 degrees. In one embodiment, poppet heads have a convex head surface and are shaped so that the tangent angle at the point of contact between the edge and the head is approximately 30 degrees.

主权项

1. A miniature poppet formed of thermoplastic for use in a high speed compressor, said poppet comprising:
an elongated stem having a first end and a second end and symmetrically defined about an elongated axis passing through the first end and the second end, the elongated stem having a spring seat formed therein and extending from the first end; and a circular head mounted on the second end of the stem and symmetrically defined about the elongated axis, the circular head characterized by an outer diameter and an outer periphery and having a bottom surface and a convex top surface with an edge formed at the periphery of the circular head, wherein the bottom surface abuts the second end of the stem, wherein a portion of the top surface adjacent the edge forms an abutment surface characterized by a tangent that forms an angle of approximately 30 degrees with the elongated axis adapted to engage at a right angle a chamfer surface with an angle of approximately 30 degrees, wherein the outer diameter of the head is no more than 0.9 inches, wherein the edge is a substantially flat surface extending between the top surface and the bottom surface, wherein the abutment surface is a flat shoulder, wherein the spring seat is a bore coaxially formed along the elongated axis, wherein the outer diameter of the head is approximately 0.74 inches.