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1. (WO2017055009) METHOD FOR SEALING AN ELECTRIC MACHINE

Pub. No.:    WO/2017/055009    International Application No.:    PCT/EP2016/070600
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Fri Sep 02 01:59:59 CEST 2016
IPC: H02K 5/124
Applicants: SIEMENS AKTIENGESELLSCHAFT
Inventors: HUTER, Eric
SCHMITT, Daniel
VOLLMER, Rolf
Title: METHOD FOR SEALING AN ELECTRIC MACHINE
Abstract:
The invention relates to a method for sealing an electric machine (2) with a housing (6) which receives a stator (4) and a rotor (8), wherein the rotor (8) is mounted on a rotor shaft (10) which extends in an axial direction (A). A particularly satisfactory sealing action of the housing (6) is ensured by way of a labyrinth seal (12) comprising a first shaped element (14a) and a second shaped element (14b) which in each case have a number of lamellae (18) which engage into one another, wherein the labyrinth seal (12) is formed by way of a generative production method. The labyrinth seal (12) is installed into the electric machine (2) by the first shaped element (14a) being fastened to the rotor shaft (10) and the second shaped element (14b) being fastened to a stationary housing part (16), in such a way that the labyrinth seal (12) is arranged in a horizontal installation position, wherein a sealing gap (20) between the lamellae (18) runs at least partially in a radial direction (R).