Bidirectional expansion valve - WENLING HENGFA AIRCONDITION COMPONENTS CO.,LTD

Title:

Bidirectional expansion valve

Document Type and Number:

Japanese Patent JP6134386

Kind Code:

B2

Abstract:

An expansion valve relating to the field of air conditioning technology. The present expansion valve comprises a housing, a cylindrical valve body with an inner cavity fixed inside the housing. In the inner cavity, there is a matched set of the first valve core and the second valve core sliding along it. A retaining ring is fixed in the inner cavity between the two valve cores. At both ends of the inner cavity there are spring assemblies driving the valve cores towards the retaining ring. A damping structure is also installed between the first valve core and the second valve core. In this manner, a cushioning effect is provided when the first valve core approaches the second valve core, which lightens the impacts to valve cores and thereby extend the service life of the expansion valve.

Inventors:

Gold leaf
Rebel soldier

Application Number:

JP2015534902A

Publication Date:

May 24, 2017

Filing Date:

September 29, 2013

Export Citation:

Click for automatic bibliography generation Help