Patent · US Active

Electronic expansion valve

US11906055B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTD · CN

Inventor

Xianrang Wei · 象珠镇, CN

Key dates

Filing date	Jun 28, 2020
Grant date	Feb 20, 2024
Priority date	—
Expiry date	Sep 6, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B30/70
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An electronic expansion valve includes the valve needle screw assembly which also includes an outer edge guide section, the electronic expansion valve includes an inner edge guide section matched with the outer edge guide section, in the process of the action of the valve needle of the electronic expansion valve, the outer edge guide section of the valve needle screw assembly is matched with the inner edge guide section of the electronic expansion valve, to provide the guide for the valve needle, relatively reducing the deviation of the valve needle relative to the valve port, thereby reducing the eccentric wear of the valve needle.

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