The housing component (10) has a base body (20) with a cover section (22) for covering the opening and an attachment section (24) for partial attachment at the housing of the axle bearing. A rotationally symmetrical bending section (26) is formed between t...

The electric door actuator (1) has fuel cell (2) functioning as power supply for door actuator. The fuel in the hybrid fuel cell is methanol, hydrogen and hydrocarbon. A fuel storage unit has a device for refilling fuel into the fuel storage unit.

The cylinder (1) has a power supply device designed as a fuel cell (2) e.g. hybrid fuel cell and lithium ion battery, where fuel utilized by the fuel cell is selected from a group consisting of hydrogen, methanol or hydrocarbon. A fuel storage part is exch...