Safety Device for a Pressurized Gas Tank, in Particular of a Motor Vehicle

摘要

A safety device is provided for a pressurized gas tank in particular of a motor vehicle. The safety device has a thermoelectric device provided on a larger surface area of the tank, which thermoelectric device makes electrical energy available under the effect of heat. The safety device, in a suitable design of the system, controls either directly or indirectly a pressure-relief device of the tank in order to avoid heat-related damage to the tank. The thermoelectric device is formed by a plurality of interconnected thermoelectric generators, the electrical energy of which produced by the effect of heat is supplied to at least one capacitor. The two electrodes of the capacitor are connected to each other via a discharge resistor. The system is designed such that a defined power differential between the power produced by the thermoelectric generators and the power dissipated by the discharge resistor results in the control of the pressure relief device either directly or indirectly via a relay circuit.

主权项

1. A safety device for a pressurized gas tank, said safety device having a thermoelectric device provided on a large surface area of the tank which, in response to effect of heat, makes electrical energy available, wherein:
the safety device, in a specified design of a system, controls either directly or indirectly a pressure-relief device of the tank, in order to avoid heat-related damage to said tank, the thermoelectric device is formed by a plurality of interconnected thermoelectric generators, the electrical energy of which, generated by the effect of heat, is supplied to an electric and/or electronic storage unit, both poles or electrodes of the storage unit are mutually connected via a discharge resistor, and the design of the system is such that a specified power differential between power produced by the thermoelectric generators and power dissipated in the discharge resistor actuates the pressure-relief device, either directly or indirectly via an electrical or electronic control circuit.