| abstract |
The invention relates to a device and method for converting boil-off gas from cryo fuel tanks (1). Overflow devices for cryo fuel tanks that release nonburned boil-off gas to the environment are known per se. This is unsuitable because of the risk of fire and the potentially harmful effect that nonburned fuel can have on the environment. In order to solve this problem, the boil-off gas is fed to the cryo fuel tank (1) on the basis of pressure via a pressure reducer (2) and a shut-off externally actuated valve (3) pertaining to a gas converter unit (4), where it is chemically converted or burnt. Preferably, devices of this kind are used in motor vehicles that are operated, for instance, with liquid hydrogen or liquid natural gas. |