CONTROL VALVE FOR STIRLING REFRIGERATOR

• Main Authors: AHN, KWANG WEON, KIM, TAE WAN
• Format: Patent
• Language: English; Korean
• Published: 01.07.2014
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

Disclosed is a control valve for a Stirling refrigerator. The control valve for the Stirling refrigerator according to an embodiment of the present invention includes a compression unit operated by receiving driving force from an engine of a vehicle to compress working fluid, which fills the inside of the compression unit, through a reciprocating motion of a piston; an expansion unit for expanding the working fluid compressed in the compression unit through the reciprocating motion of the piston; and a regeneration unit for fluidly communicating the compression unit and the expansion unit with each other. In the Stirling refrigerator which absorbs heat in the expansion unit and generates heat in the compression unit by repeating isothermal compression, constant-volume process, and isothermal expansion of the working fluid, the control valve, which connects an internal heat exchanger which cools the outdoor air through heat exchange with the outdoor air and the expansion unit with each other and is mounted on an inflow pipe and an outflow pipe in which cooling fluid is circulated, comprises a housing connected with the inflow pipe and the outflow pipe between the Stirling refrigerator and the internal heat exchanger; an inflow passage formed inside the housing corresponding to the inflow pipe and connected with the inflow pipe; an outflow passage formed inside the housing corresponding to the outflow pipe at a position where the inflow passage is spaced apart from the inflow passage at a predetermined interval and connected with the outflow pipe; a connection passage formed inside the housing to communicate the inflow passage and the outflow passage with each other; and a control unit mounted on the connection passage to recirculate some of the cooling fluid which flows along the inflow passage and the outflow passage.