Magnetically coupled rotary sliding element displacement pump has rotary sliding displacement element movable in slide collar in inner cylinder, and hermetically sealed pump housing

摘要

The device has a preferably cylindrical chamber (10) in a housing, suction and outlet channels, an inner rotary cylinder (2), a working chamber and a rotary sliding displacement element (1) movable in a slide collar (11) in the inner cylinder. The pump housing is hermetically sealed and has two rotatable magnetic rings (40,41) inside and outside a slotted tube or pot (38) with opposing magnetic elements (39) of alternating polarity.