Shut-off valve for a vehicle fuel tank
By installing a pressure-conducting pipeline inside the fuel tank and a shut-off valve that works in conjunction with a liquid level sensor, the problems of fuel overflow and overpressure in the fuel supply system of large vehicles are solved, and automatic shut-off is achieved in case of failure, thereby improving the safety and reliability of the system.
CN122161725APending Publication Date: 2026-06-05ADEL WIGGINS GROUP A DIVISION OF TRANSDIGUM GMBH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ADEL WIGGINS GROUP A DIVISION OF TRANSDIGUM GMBH
- Filing Date
- 2024-08-29
- Publication Date
- 2026-06-05
Smart Images
Figure CN122161725A_ABST
Abstract
A fuel refill system shut-off valve for a fluid delivery system providing an internal pressure line for use with a jet liquid level sensor is provided. The shut-off valve is closed unless there is a positive signal from the return pressure line, so the shut-off valve fails closed and overfilling due to a failure is avoided. An internal piston opens and closes a peripheral fluid outlet based on the presence or absence of back pressure provided by the return signal from the liquid level sensor located inside the fuel tank of the vehicle.
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Citation Information
Patent Citations
Non-pressurized fluid level shutoff for fuel tank
US9458006B2