| 摘要 |
The flow sensor has an electromagnetic gas valve (12) for shutting of a gas feed, an electronic unit (13) for driving the valve, a gas flow sensor (14) for the flow from a gas tank (19, 20) and an evaluation unit (15) for comparing the actual gas flow with a previous gas flow. The electronic unit drives the valve to shut off the gas flow if the evaluation unit has determine an actual gas flow that differs from the previous flow by more than a maximum permitted rate of change. Independent claims are also included for the following: (A) a liquid gas system (B) and a safety shut-off method. |
