Spiral pump with eccentric bearing

摘要

A spiral pump according to the invention comprises a fixed slide (1), an orbitally moving slide (2), which is mounted on an orbitally moving spiral axis (4), and a crank shaft. An eccentric hole (16') is formed in the end of the crank shaft. An eccentric bearing (26) turns inside this eccentric hole. The eccentric bearing has a centre aperture (16'') which is eccentrically arranged in relation to the outer circumference of the bearing in which the orbitally moving spiral axis is arranged and turns freely.
<IMAGE>