Ansteuerbares thermostatistisches Expansionsventil für Kraftfahrzeug-Klimaanlagen

The superheat setting of conventional expansion valves has to be a compromise between a high setting for good refrigeration efficiency and a low setting for moderate discharge gas temperatures. To solve this conflict, Behr GmbH & Co. has developed an external controlled thermostatic expansion valve (ATEV). This valve is based on a conventional block design and has a relatively high base superheat setting to provide best refrigeration efficiency at normal driving conditions