| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas compressor configured to prevent a valve element of a pressure regulation valve element part from being closed on early stage during an initial term of activation.SOLUTION: A pressure regulation valve element part 90 is provided between a discharge chamber 21 and a vane back pressure space 69. In the case where a pressure between both is substantially uniform, a valve element 93 of the pressure regulation valve element part 90 is located in a position where a coolant passage groove 93a communicates with a coolant introduction passage 92, and a valve open state is provided where a liquid coolant (fluid) is introduced from the discharge chamber 21 through the coolant introduction passage 92 into the vane back pressure space 69. In the case where a pressure at the discharge chamber 21 side increases and a differential pressure between the discharge chamber 21 and the vane back pressure space 69 becomes greater, the valve element 93 is located in a position where its outer peripheral surface closes the coolant introduction passage 92, and a valve closed state is provided where introduction of the liquid coolant from the discharge chamber 21 through the coolant introduction passage 92 to the vane back pressure space 69 is stopped. |
