Tcg Unitech Aktiengesellschaft

Heinz Klaus

Gerald Buha

Fritz Atschreiter

Markus Preinfalk

A radial-flow pump ( ), and especially a coolant pump for an internal combustion engine, comprising an impeller ( ) provided with vanes ( ) and a directing device ( ) including at least one temperature- and/or speed-sensitive element for temperature-dependent control of the coolant flow, where at least one impeller vane ( ) and/or the directing device ( ) is configured as a speed-sensitive element. In order to increase efficiency, the proposal is put forward that the impeller vanes ( ) should be elastically deformable by Coriolis forces of the coolant flow, the discharge angles (&agr;), which are preferably defined between impeller vanes ( ) and impeller tangential planes (&egr;), decreasing with an increase in speed.

Radial pump

The invention relates to an oil pump for an internal combustion engine with at least one pair of toothed wheels which are in mutual engagement, at least one intake port and at least one outlet port. An improved supply of oil at reduced driving power can be achieved with at least two pairs of toothed wheels; a first common shaft, which a first toothed wheel of each pair of toothed wheels is arranged, and means are provided to charge the individual pairs of toothed wheels with oil depending on the required quantity of conveyed oil.

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Vienna, Austria

Heinz Klaus