Rotary piston

Abstract

The present invention relates to a rotary piston 10 for a rotary piston pump, wherein the rotary piston 10 comprises at least one supporting body 12, through which the axis of rotation D of the rotary piston 10 extends, and at least one end cap portion 14, 16 which is arranged radially outwards of the at least one supporting body 12 and is connected flexibly, preferably elastically, to the at least one supporting body 12.

Description

technical field [0001] The invention relates to a rotary piston for a rotary piston pump. Background technique [0002] Rotary piston pumps are known from the prior art and, for example, from document DE 102 010 014 248 A1. The rotary piston pump according to this document comprises a motor and a pump housing in which a rotary piston is placed. Furthermore, an inflow opening and an outflow opening are provided in the pump housing. Two rotary pistons placed in the pump housing rotate in opposite directions so that the conveyed medium can be pumped out while there is constant mutual contact. [0003] If a medium containing solids is conveyed by a rotary lobe pump, the rotary piston in the pump housing may be subject to a higher degree of wear, which can cause the rotary piston to fail. The transfer of such media is therefore often accompanied by extensive maintenance work. [0004] Document DE 37 07 722 A1 describes a rotary lobe pump which is also suitable for transferrin...

AI Technical Summary

Problems solved by technology

This prior art shows that strips of elastomeric material are subject to severe wear

Furthermore, when there are high loads, this can have a counterproductive effect in operation if the sealing strip actually runs the risk of detaching from the support body due to breakage at the breaking point

This can cause the rotary lobe pump to fail completely or be severely damaged

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