Patent · US Active

Expansion valve

US10145594B2 · kind B2 · utility

2Cited by

15References

11Claims

0Family size

Assignee

DunAn Microstaq, Inc. · US

Inventors

E. Nelson Fuller · Manchester, US
Parthiban Arunasalam · Austin, US
Joe A. Ojeda · Austin, US
Gengxun K. Gurley · Hutto, US
Chen Yang · Austin, US
Jennifer O'Keefe · Austin, US

Key dates

Filing date	Jan 6, 2017
Grant date	Dec 4, 2018
Priority date	—
Expiry date	Mar 4, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF25B2600/2513
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A two-stage proportional control valve configured for use in a fluid system includes a valve body having a longitudinally extending valve body bore formed therethrough. A first stage microvalve is mounted within the valve body bore, and a second stage spool assembly is mounted within the valve body bore downstream of the microvalve. The second stage spool assembly includes a sleeve and a spool slidably mounted within the sleeve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.