| 摘要 |
PURPOSE:To prevent a large quantity of gas from flowing into a low-pressure side port on starting and make a valve opening operation smooth by constructing a high-pressure valve part in such a way that it closes both inlet and outlet ports on a high-pressure side simultaneously, and further making each of said both ports one-sided from the center of said valve. CONSTITUTION:A high-pressure side inlet port 54 and a high-pressure side outlet port 53 are closed by a valve 55 which is energized by a bias spring 56. Thereby, when starting, since the port 54 is closed by the high-pressure valve part 55a, the main factor of the pressure drop of a low-pressure side port 52 is the quantity of gas leaked from between the port 54 and the high-pressure valve part 55a, and the pressure drop takes place quite rapidly as compared with a type which is always connected to an enclosed container 2, securing valve opening force. Furthermore, each of the ports 53, 54 are one-sided with respect to the center line of a casing 51, without being coaxially arranged with the valve 55. Accordingly, when the valve 55 is separated from the port 54, the port 53 is opened, allowing part of gas to leak into a condenser 13, to prevent pressure drop and make a valve opening operation smooth.
|
