Energy
Our gearbox solutions for the energy sector show a very broad spectrum of concepts, power ratings and speeds.
In the areas of ‘renewable energy’ and ‘mobile power generation’, activities substantially increased in recent years.
Our design philosophy is based on long-term experience and extensive know-how in gearbox design, especially in the high-speed area.
Features of our gearbox solutions for the energy sector:
- Extremely high efficiency, up to 99.3%
- High reliability / MTBF
- Years of operation without interruption, low maintenance through the use of journal bearings and non-contact seals.
- Geothermal power
- Hydro power
- Wind power
- Biomass
- Heat recovery
- Compressed air storage
- Hydrogen transport
Examples of completed customer projects:
Liquid air energy storage
Multi-shaft integral gearbox with thrust collars for a four-stage expander-generator drive.
All four expanders are attached to the gearbox. Each pinion forms an integral part with two impellers.
The thrust collars on the pinions transmit the expander thrusts to the wheel shaft bearings.
Expander speeds: 48’000 and 40’000 rpm.
Number of tooth contacts per second: 24’540.
Hydrogen transport in pipelines
Single-shaft integral gearbox with thrust collar for a motor-compressor drive.
The compressor is attached to the gearbox. The thrust collar on the pinion transmits the compressor thrust to the wheel shaft bearings.
Compressor speed: 60’000 rpm.
Number of tooth contacts per second: 32‘540.
Thrust collar tip speed: 330 m/s.
Turbine generator package
Star-differential epicyclic gearbox for a new type of turbine generator package.
Both gear stages incorporate our flexpin technology for equal load sharing between 5 and 7 planet gears resp. The gearbox includes auxiliary gear drives for turbine starter and pumps.
Turbine speed: 26‘000 rpm.
Gear ratio 14.4:1 and 17.3:1