Abstract: A combustion chamber assembly group, and a mounting method therefor, includes a combustion chamber for an engine that includes a curved combustion chamber wall extending along two spatial directions, and a combustion chamber shingle affixed at an inner side of the combustion chamber wall and having a shingle edge defining the outer contour of the shingle. For an at least sectional abutment of the shingle edge at the combustion chamber wall with a minimum clamping force in an operational state of the engine, the shingle is mounted to the combustion chamber wall in a mounting state in which the shingle at least at one section of the shingle edge has a curvature with respect to at least one of the spatial directions that differs from the curvature of the combustion chamber wall with respect to this spatial direction.

Abstract: Use of a range extender vehicle includes a range extender energy store and means for transmitting energy to a main vehicle for supplying a main vehicle, including a main vehicle electric motor for driving the main vehicle, a main vehicle energy store for supplying the main vehicle electric motor with power and means for obtaining energy from the range extender vehicle, with energy from the range extender energy store via the coupled-together energy transmission means and means for obtaining energy. The range extender vehicle also includes: a range extender electric motor for driving the range extender vehicle; means for autonomously driving the range extender vehicle on a road network; and receiving means for receiving information for detecting the main vehicle. By means of the invention, the mobility, in particular the range, of electric vehicles can be improved in a simple and comfortable manner.

Abstract: A mobile energy system (MES) can absorb, temporarily store and restore electric energy through connection to the house network. The energy can furthermore be released at the location of charging, at other locations or while driving. This offers the possibility of operating stationary or mobile quick charging stations also at locations which permit only small power output. By coupling the systems via a cloud, functions of a virtual power station can be performed.