Förfarande för att vid rotormaskiner av deplacementstyp och liknande roterande maskiner uppnå förutbestämda små spel mellan rotorerna och omgivande hus

摘要

The rotors are given an original slight excess dimension in their outer diameters and after they have cooled and have been fitted in the housing, during rotation and with rising temperature the excess dimension is removed by abrasive strands (8,9) when the rotor diameter increases with rising temperature. - When drive temperature in the rotors is reached, the height (10,11) in the abrasive strands gives the required optimal clearance between the rotors and the surrounding housing.