Importance

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Abstract

The aim of the invention is to improve upon conventional electricity generator sets consisting of a driven generator with relatively complex couplings and possibly a gear box transmission between the crank shaft and the generator. In accordance with the invention the engine is a stirling or hot gas engine with at least four double acting cylinders, each of whose pistons placed between a hot and a cold cycle space is connected with a piston rod on a cross head linearly guided in a cross head guide and coupled via coupling member, more especially one in the form of a connecting rod, with a crank shaft. Furthermore the moving elements--permanent magnets or exciting windings--of a linear generator are located in each cross head and the stationary parts--stators--are arranged on the associated cross head guide. The crank shaft and linking members only serve to synchronize the working cycles of the engine and are therefore only designed for light duty. Furthermore the crank shaft is entirely comprised within the crank shaft housing and the latter is hermetically sealed. The generator set serves as a self-contained unit for the production of electricity with a comparatively high power output, such electric output being used for charging an accumulator, running a load or for supplying a distribution network.

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First Claim