Electrically operated valve

摘要: In the electrically operated valve, hydraulic part of valve lies outside magnetic stray field electromagnet. its capacity as an electrohydraulic transducer, it operates with a variable restriction output variable. this arrangement, orifice is varied function voltage applied. Temperature-dependent influencing variables are compensated by use actuating pin, linear coefficient thermal expansion which greater than that magnet body. For purpose, pin may consist, for example, aluminium. To further reduce temperature dependence contains compensating piston eliminates temperature-dependent influences. Virtually complete independence achieved constructional measures. As alternative to special design bimetallic disc spring envisaged.