Robert Boschgmbh

Johann Kunz

Walter Hagenlocher

Rudiger Sohnle

Karl Kleebaur

Christoph Kugel

Heinz Hesse

Werner Lemke

Thomas Bilsing

Hans-Joachim Lutz

Hermann Lehnertz

Martin Leins

Johann Koeppel

A belt drive of an electrical machine has a belt pulley arranged on a driving end of a machine shaft, a coupling connecting the drive pulley with the machine shaft, the coupling having at least one elastic coupling part provided between a driving side and a driven side of the coupling, a mounting part having a bearing pin and mountable on a machine aggregate which is connected with the electrical machine, a drive belt connecting the mounting part with the machine aggregate, and an inner bearing. The belt pulley in order to take up belt pull forces, is mounted through the inner bearing on the bearing pin of the mounting part which is mountable on the machine aggregate through the drive belt.

Belt drive for electrical machines

To form a compact combination structure which provides efficient cooling and ease of assembly, maintenance and repair, while reducing the number of elements necessary to be stocked for maintenance or repair purposes, the rectifier portion of the alternator-rectifier combination comprises two groups of rectifiers which are, respectively, set in openings of two disk-shaped support plates 15, 35, which have, each, ring-shaped portions 38 surrounding the shaft and radially projecting fins 39, 39'. One of the plates is formed with a hub to retain one of the bearings, the outer portion of the fins is apertured for attachment to the shell of the alternator, and additionally deformed to provide seating surfaces for accurate positioning, for example by externally applied punch marks, of the plate. An insulating spacer 43, 43' separates the two plates which are so positioned that the fins of one plate are opposite the gap between fins of the other, so that air drawn axially by a ventilating fan will cool both plates.

Alternator-rectifier construction where sheet metal diode support plates

To form a compact combination structure which provides efficient cooling and ease of assembly, maintenance and repair, while reducing the number of elements necessary to be stocked for maintenance or repair purposes, the rectifier portion of the alternator-rectifier combination comprises two groups of rectifiers which are, respectively, secured to the surface of two disk-shaped support plates 15, 35, which have, each, ring-shaped portions 38 surrounding the shaft and radially projecting fins 39, 39'. One of the plates is formed with a hub to retain one of the bearings, the outer portion of the fins is apertured for attachment to the shell of the alternator, and additionally deformed to provide seating surfaces for accurate positioning, for example by externally applied punch marks, of the plate. An insulating spacer 43, 43' separates the two plates which are so positioned that the fins of one plate are opposite the gap between fins of the other, so that air drawn axially by a ventilating fan will cool both plates.

Mobile alternator-rectifier combination construction, particularly for

To direct cooling air to components which, in operation, require different amounts of cooling due to different heat dissipation, a cover cap is provided which prevents accidental contact with current-carrying elements and which is formed with slits or openings therein located with respect to the components requiring cooling to direct cooling air, upon induced axial airflow, to the respective components in relationship to their cooling requirements. Some of these openings may be formed with in-turned collars surrounding, for example, diode rectifiers, to direct air on and around the diode rectifiers, while preventing contact with their terminals.

Protective cover cap for an automotive-type alternator-rectifier

Growing community of inventors

Sersheim, Germany

Johann Kunz