Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Olivier Herbiet

Gilles Hebrard

A housing for a motor or compressor has an elongate crankcase with two end surfaces. At least one cylinder chamber is provided in which a piston is caused to perform a movement by rotation of the crankshaft. The internal diameter of the crankcase narrows monotonously from the first end surface to the second end surface. A crankcase shaped in this way can be manufactured particularly easily by virtue of the casting being performed around a shaping mandrel. A shaping mandrel of this type must likewise narrow monotonously in order that, after the casting has been performed around it, the shaping mandrel can be pulled out of the housing at a first end. By way of the shaping of the crankcase, it is possible for the housing to be of unipartite and at the same time very compact construction.

Housing for a motor or compressor

An air compressor of a pneumatic system in a vehicle includes a piston pump that is fitted with at least one piston and a crankshaft which are located in a crankcase. At least part of the crankcase is cast from aluminum and includes an integrally formed coolant duct.

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La Chapellel Yvon, France

Olivier Herbiet