Multi-stage integrally geared compressor

Patent metadata

Field	Value
Publication number	US-9512849-B2
Application number	US-201113697084-A
Country	US
Kind code	B2
Filing date	May 10, 2011
Priority date	May 11, 2010
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

A multi-stage integrally geared compressor includes a first process stage, a second process stage and a gearbox for coupling the two process stages to each other at different rotational speeds. The gearbox further couples a compressor drive shaft to the two process stages at a further rotational speed, which is different from the rotational speeds of the process stages.

First claim

The invention claimed is:

1. A multi-stage integrally geared compressor, comprising:
a first process stage,
a second process stage,
a compressor drive shaft and
a gear which couples the two process stages to each other with different rotational speeds,
wherein the gear couples the compressor drive shaft to the first and second process stages with a further rotational speed, which is different from the different rotational speeds of the process stages,
wherein the first process stage is an axial compressor stage and the second process stage is a radial compressor stage, and
wherein the gear is arranged in a gear housing within the compressor housing.

2. The integrally geared compressor as claimed in claim 1 , wherein the compressor drive shaft is coupled to the process stages by a planetary gear.

3. The integrally geared compressor as claimed in claim 2 , wherein the compressor drive shaft is aligned in a manner centered with respect to the planetary gear.

4. The integrally geared compressor as claimed in claim 2 , wherein the compressor drive shaft is rigidly connected to a planet carrier of the planetary gear.

5. The integrally geared compressor as claimed in claim 1 , wherein a plurality of second process stages are provided which are arranged in parallel, each second process stage having a separate drive shaft.

6. The integrally geared compressor as claimed in claim 1 , wherein an intake side of the second process stage is connected to a discharge side of the first process stage.

7. A multi-stage integrally geared compressor, comprising:
a first process stage,
a second process stage,
a compressor drive shaft and
a gear which couples the two process stages to each other with different rotational speeds,
wherein the gear couples the compressor drive shaft to the first and second process stages with a further rotational speed, which is different from the different rotational speeds of the process stages,
wherein the first process stage is an axial compressor stage and the second process stage is a radial compressor stage,
wherein the compressor drive shaft is coupled to the process stages by a planetary gear, and
wherein the first process stage is rigidly connected to an annulus of the planetary gear.

8. The integrally geared compressor as claimed in claim 7 , wherein the annulus of the planetary gear is rigidly connected to spur wheel toothing of a spur wheel gear of the gear.

9. The integrally geared compressor as claimed in claim 8 , wherein the second process stage is rigidly connected to a pinion shaft of the spur wheel gear.

10. A multi-stage integrally geared compressor, comprising:
a first process stage,
a second process stage,
a compressor drive shaft and
a gear which couples the two process stages to each other with different rotational speeds,
wherein the gear couples the compressor drive shaft to the first and second process stages with a further rotational speed, which is different from the different rotational speeds of the process stages,
wherein the first process stage is an axial compressor stage and the second process stage is a radial compressor stage, and
wherein the gear contains a spur wheel gear having a large wheel, wherein the first process stage is arranged symmetrically with respect to the large wheel.

11. The integrally geared compressor as claimed in claim 10 , wherein the first process stage is rigidly coupled to the large wheel.

Assignees

• Naβ Dieter
• Schlüter Lars
• Siemens Ag

Inventors

• Naβ Dieter
• Schlüter Lars

Classifications

• F04D25/028

  the driving means being a planetary gear · CPC title

• F04D25/163

  driven by a common gearing arrangement · CPC title

• F04D25/02 Primary

  Units comprising pumps and their driving means · CPC title