Abstract: The invention refers to a gas-tight, maintenance-free high capacity lead accumulator with a sulphuric acid thixotrope (13) as electrolyte. To ensure operatability of the accumulator in upright as well as in horizontal position, the liquid electrolyte released under certain charging conditions has to be collected. For this purpose layers of fibrous web (10, 22) of highly porous and absorbing material are at least partially provided at the edges of the accumulator and above the plate group (1) which temporarily store liquid electrolyte and again release it.

Abstract: A method for recognition of the power stroke of an internal combustion engine is proposed, in which recognition as to whether a cylinder is currently in the power stroke is possible by means of camparison of a signal that is synchronous with the crankshaft angle and a signal that is modulated by the combustion events of the engine.

Abstract: A first control unit of a multiple function control system for a motor vehicle engine controls a function, such as fuel injection, for which it is desirable to provide an engine load signal measured by the amount of air drawn or forced into the engine per unit of time, determined by what is generally known as an air quantity meter. A second control unit of the control system controls the timing of an electrical ignition system for which it has been conventional to supply an engine load signal derived from a pressure transducer.

Abstract: Adjustable slalom pole, consisting of a standpipe, a ground part to be inserted into the ground and a tipping element arranged between ground part and standpipe. The standpipe consists of fiber-reinforced synthetic material. This wall strength of the standpipe consists of fiber-reinforced synthetic material. The wall strength of the standpipe tapers off from bottom to top preferably step-wise.