Siemens Aktiengesellschaft

Johnson Controls Technology Company

Christian Huebsch

Silvio Hartlaub

Christian Schneider

Robin Ndagijimana

Wolfgang Pellenz

Ralph Gaertner

Vikas Wayal

Sachin Bharambe

Turgay Cinarci

A rail vehicle includes a graywater line which is in communication with the surroundings of the rail vehicle directly or by way of a collecting container. The graywater line is equipped with a pressure protection valve, which protects a graywater line section upstream of the pressure protection valve from pressure surges occurring in the surroundings of the rail vehicle. The pressure protection valve is constructed as a pinch valve which is controlled by a control device in order to protect the graywater line section from pressure surges.

Rail vehicle with pressure surge-safe graywater line

A vehicle seat comprises a backrest, an active headrest, a release device, and an energy store. During normal operating situations of the vehicle seat the energy store is blocked. During an accident, particularly a rear-end accident, the energy store is released for actuation of the active headrest. The energy store is arranged in the active headrest or in the backrest. The backrest includes an actuating device, and a transmission device is arranged between the actuating device and the active headrest.

Vehicle seat

Growing community of inventors

Duesseldorf, Germany

Christian Huebsch