SAFETY DEVICE FOR VEHICLES WITH GAS FUELLED ENGINES

摘要

This invention concerns a safety device for vehicles with engines fuelled with compressed gas loaded in at least one cylinder on board the vehicle and where the cylinder is equipped, with a valve housing a plug fuse to open a gas discharge passage. The device includes at least one electric heating means (16) powered by means of an electric circuit (19) normally open, and temperature sensors (21), placed in at least some zones of the vehicle, each one supplying a signal indicating the temperature in the respective zone of the vehicle and provoking the closing of the electric circuit on the heating element to cause the fusion of the plug fuse so as to open the gas discharge passage when at least one of the signal has reached the preset safety limit.