Ksb Aktiengesellschaft

Ralf Graber

Bernhard Brecht

Uwe Bruhns

Harald Hartmann

Juergen Kaufmann

An engine pump assembly (), particularly a main coolant pump, composed of a housing () of a rotary pump with delivery elements arranged therein, a heat barrier part (), a motor part () which drives the delivery elements, and force transmitting connecting elements () between a housing flange () of the housing () of the rotary pump and a flange () of the engine part (). For faster and more reliable assembly and disassembly, the housing flange () is provided with receptacles () over at least half of its periphery for the arrangement of screw heads () of the connecting elements (), which screw heads () are held in a bayonet-like manner in the receptacles ().

Main coolant pump

An electric motor () having a coaxially associated pump () for a coolant circuit, in particular in a system with temperature transfer and/or heat transfer, in which a shaft assembly () transmits a torque from the electric motor () to at least one impeller () arranged in the pump housing () within housing parts () in the form of a hermetically sealed pressure enclosure, and a flywheel () is arranged between the electric motor () and the pump housing (). All of the rotating parts are arranged within a hermetically sealed motor/pump unit, and the motor/pump unit is filled with fluid. The flywheel () comprises a flywheel body () made from a high-strength material having a large number of cavities () with inserts () formed of or containing a heavy metal having a density greater than 11.0 kg/dmarranged in the cavities.

Growing community of inventors

Frankfurt-am-Main, Germany

Ralf Graber