Patent · US Active

Expansion and shutoff valve

US10962265B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Hanon Systems · KR

Inventors

Dominik Wiechard · Cologne, DE
Andreas Capelle · Pulheim, DE
Markus Herzog · Ergolding, DE
Matthias Herpers · Jülich, DE
Jörn Fröhling · Cologne, DE
Marco Favara · Nörvenich, DE

Key dates

Filing date	Nov 7, 2017
Grant date	Mar 30, 2021
Priority date	—
Expiry date	Jan 28, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B30/70
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

An expansion and isolation valve, specifically an electric expansion and isolation valve for operation with the coolant R744, featuring a valve body arranged in a valve body chamber, a seal seat, and a seal, which are arranged along an axial movement direction of the valve body in the expansion valve. The expansion valve is further designed such that in a closed state of the expansion valve, there is a pressure bypass to the valve body chamber, and preferentially, that a valve body diameter at the positions of the seal seat and the seal corresponds with the respective seal diameters.

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