| 摘要 |
<p>The valve (1) has a pressurized chamber with a pressurization opening (6) that is cooperated with a non return flap (6-1) for opening and closing the opening. The gas circulation between an inlet opening and outlet opening is prevented, in the closing position of the valve. A depressurization opening (7) is cooperated with a draining valve (7-1). A diaphragm is elastically deformed between the opening and closing position of the valve. The diaphragm injects the gas in the depressurization opening, till the pressure of the chamber is greater than the pressure of a circulation chamber. Independent claims are also included for the following: (1) a support device (2) a method for using the support device.</p> |
