Electronic flow sensor
US9587754B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Feb 7, 2014 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Jul 28, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8593
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A safety shut-off device is provided for a liquid gas system for vehicles and/or vehicle trailers, in order to avoid an inadvertent release of gas. The device includes an electromagnetic gas valve for supplying/shutting off the gas, an electronic unit for activating the electromagnetic gas valve, and a flow sensor for determining a current gas flow being discharged from a storage tank. Furthermore, the device includes an evaluation unit for comparing the current gas flow to a previous gas flow or to a gas flow which is indicated by the gas consumers and is to be expected. If, during use, the evaluation unit determines a current gas flow which differs by more than a maximum permissible rate of change from the previous gas flow or from an expected gas flow, the electromagnetic gas valve is activated via the electric unit in order to shut off the supply of gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.