Device for opening a passenger door in case of emergency

A device for opening a passenger door of an aircraft in case of emergency, which is fastened so it is manually pivotable on the fuselage of the aircraft via a hinge and/or support arm configuration, the device comprising:

• an auxiliary-energy-operated emergency opening drive acting between the fuselage and the passenger door, including a pyrotechnic energy source, a protected expansion chamber for expanding gas within, a turbine for generating rotational movement from the pyrotechnic energy, and a downstream reduction gear, and
• an emergency control unit triggering the expanding gas,
• wherein the emergency opening drive automatically opens the passenger door in accordance with the emergency control unit,
• wherein the gas expanding within the protected expansion chamber after triggering by the emergency control unit impinges the emergency opening drive as a pressure medium to open the passenger door, the turbine and reduction gear cooperating to open the passenger door.