20. September 2016
Oil-free turbo compressors with gas bearings are not only used for the compression of air with 1 bar ambient pressure, but also for other pressure levels or refrigerants.
18. July 2016
To machine very small work pieces (micro-machining) or for ergonomic reasons in dental and medical drills, the head of the machining spindle or the hand piece has a limited size. The electrical motor is only allowed to grow in one lateral direction if a direct drive is used.
21. March 2016
"The technical application is defined, the pressure rise and the mass flow are determined, but which compressor type is the right one for this application?"
24. February 2016
Speed, torque, power, mass flow, volume flow, pressure ratio or pressure difference - absolute or relative? These are just some basic specifications of an ultra-high-speed motor or turbo compressor. To clearly display our product portfolio and to facilitate the selection, we have developed the two figures shown below. They depict our available products and their operating ranges, as well as the scope of our technology.
09. November 2015
The 2-level converter topology in combination with pulse width modulation (PWM) is the standard converter for rotational speeds up to several thousand revolutions per minute (rpm). When the application needs rotational speeds up to several hundred thousand rpm or has extreme motor efficiency requirements then other converter topologies and modulations schemes must be considered. Normally pulse amplitude modulation (PAM) is the optimal choice. What are the advantages and disadvantages of these two modulation schemes? Here is a guide to help in making the best selection.
Michelin Recherches et Techniques beside other project partners is a technology provider for alternative propelled ...