EP 2664869 B1 20180321 - REFRIGERATING SYSTEM AND THERMOSTATIC EXPANSION VALVE THEREOF
Title (en)
REFRIGERATING SYSTEM AND THERMOSTATIC EXPANSION VALVE THEREOF
Title (de)
KÜHLANLAGE UND THERMOSTATISCHES EXPANSIONSVENTIL DAFÜR
Title (fr)
SYSTÈME DE RÉFRIGÉRATION ET SOUPAPE À EXPANSION THERMOSTATIQUE DE CELUI-CI
Publication
Application
Priority
- CN 201110007936 A 20110114
- CN 2012070276 W 20120112
Abstract (en)
[origin: EP2664869A1] Disclosed are a thermostatic expansion valve and a refrigerating system comprising the thermostatic expansion valve. The thermostatic expansion valve comprises a valve body (1) arranged with an air box on the top, and the inner chamber of the air box is divided into an upper chamber (22) and a lower chamber (23) by a diaphragm (21). Within the inner chamber of the valve body (1) there are provided a valve plug component (3) and a valve port (11) matched with the valve plug component (3). The inner chamber of the valve body (1) is divided into a first interface chamber (12) and a second interface chamber (13) by a sealing line or sealing face (31) between the valve port (11) and the valve plug component (3). At the lower end part of the valve body (1) there is provided a balance chamber (14) to balance the valve plug component (3). The upper end part of the valve plug component (3) is arranged within the lower chamber (23) and the lower end part thereof is arranged within the balance chamber (14) of the valve body (1). The balance chamber (14) is in communication with the lower chamber (23), and the balance chamber (14) is in sealed isolation from both the first interface chamber (12) and the second interface chamber (13). The structure of the thermostatic expansion valve is capable of reducing the systematic pressure difference to which the valve plug component (3) is subjected, such that the regulating precision of the valve plug component (3) is improved.
IPC 8 full level
F25B 41/06 (2006.01)
CPC (source: EP US)
F25B 41/335 (2021.01 - EP US); F25B 2341/063 (2013.01 - EP US); F25B 2341/0683 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2664869 A1 20131120; EP 2664869 A4 20140709; EP 2664869 B1 20180321; CN 102589206 A 20120718; CN 102589206 B 20150408; US 2013298597 A1 20131114; WO 2012095011 A1 20120719
DOCDB simple family (application)
EP 12734051 A 20120112; CN 201110007936 A 20110114; CN 2012070276 W 20120112; US 201213979533 A 20120112