Valve apparatus for controlling mass flow, manufacturing method thereof and heat exchanger using the same

摘要

The flow control valve apparatus (100) has a flow channel (120) for guiding a fluid. A sealing piece (108) with an orifice (105) is installed in the flow channel. A permanent magnet valve (101) is suspended by a support (102) in an upper flow channel (121) to open or close the orifice based on a current applied to a solenoid coil (107) installed along the outer periphery of the flow channel. Independent claims are also included for the following: (a) a flow control valve apparatus manufacturing method; and (b) a heat exchanger.