| 摘要 |
PURPOSE:To facilitate the control of the faculty of an engine by forming a flow passage which communicates to the spaces divided in each pressure by a displace and/or power piston and installing a flow rate adjusting valve controlled according to the position of the displacer, etc. into the flow passage. CONSTITUTION:The inside of a cylinder is divided into a high temperature space 5 and a low temperature space 6 by fitting a displacer 1 in free reciprocating movement into a cylinder, and the part between the spaces 5 and 6 is connected by a side passage in which a heater 2, regenerator 3, and a cooler 4 are arranged. Further, in the low temperature space 6, a power piston 7 with which a compressor piston 9 is integrally connected through a rod 8 is fitted, and a gas spring space 16 is formed under the piston 7, low temperature space 6 and the gas spring space 16 are allowed to communicate through a flow passage 17 into which a check valve 15 and a flow rate adjusting valve 14 are installed. The flow rate adjusting valve 14 controls the flow rate through a control circuit 13 according to the output of a sensor 12 for detecting the position of the power piston 7, and the direction of the check valve 15 is set reverse to the direction of leak of working gas. |
