Geared compressor rotor for cold gas applications

摘要

A geared compressor rotor for cold gas applications is provided. The geared compressor rotor includes a pinion shaft having a gear tooth segment having gear teeth. The rotor further includes at least one impeller wheel having an impeller wheel hub and a sealing segment arranged between the gear tooth segment and the impeller wheel hub that bears a seal. The impeller wheel hub and the sealing segment form a common, continuously coherent region composed of a first material. The toothing segment is formed from a second material. The first material is tougher at subzero temperatures than the second material.

主权项

1. A geared compressor rotor for cold gas applications, comprising:
a pinion shaft comprising a toothing segment having a toothing, at least one impeller wheel comprising an impeller wheel hub, a sealing segment arranged between the toothing segment and the impeller wheel hub and bearing a gasket, wherein the impeller wheel hub and the sealing segment form a common, continuously coherent region composed of a first material, wherein the toothing segment is formed from a second material, and wherein the first material is tougher at subzero temperatures than the second material, wherein a pair of separate and different material regions is defined by the first material and the second material, wherein a rotationally fixed connection is arranged between the pair of separate and different material regions by way of a Hirth coupling effective to transmit an axial force or torque between the pair of separate and different material regions.