Rotary lobe pump

Abstract

The invention proposes a rotary cam pump which includes a pump body with a drive device and an outer pump housing, as well as a replaceable insert. The insert includes a box made of plastic material having an inlet end, an outlet end and an inner surface defining a pump chamber; and a pair of cam rotors configured for rotation within the pump chamber. The casing includes a bore through which the cam rotor can be rotationally driven such that the cam rotors mesh together for pumping fluid from the inlet end to the outlet end.

Description

technical field [0001] The present invention relates to a rotary lobe pump. Background technique [0002] Rotary lobe pumps are positive displacement pumps used in industry for food, pharmaceuticals, and other similar materials. When handling these materials, it is important to avoid cross-contamination and chemical interaction with other materials. [0003] Known rotary lobe pumps provide a certain provision for dismantling by the user. In this way, parts of the pump that come into contact with the pumped material can be cleaned and sanitized in batches. The problems with such cleaning and sanitizing processes are that they are time consuming and error prone. Any errors in the cleaning process can result in contamination of the pumped material and / or loss of product. [0004] Typically, the components of a rotary lobe pump are manufactured with high dimensional accuracy and low tolerances. It is especially important that the shape of the lobe rotor and pump chamber wal...

AI Technical Summary

Problems solved by technology

The problem with this type of cleaning and sanitizing process is that it is time consuming and error prone

Any errors in the cleaning process may result in contamination of pumped material and / or loss of product

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