Axial Flux Electric Motors are a hot topic these days. They are not new, as our electronics guron -guru Jeffrey Jenkins emphasized in its deep immersion in the world of axial flow in 2021. However, innovative designs from engine manufacturers such as turnide and Orbis Electric promise to open new applications for EVS.
Yasa owned by Mercedes is also in the axial river effect one-road & track that the company recently demonstrated an axial river engine in its AMG GT XX Concept Car. Now Yasa has published some remarkable specifications for his new engine, from which he claims that he “delivers the highest electricity density that has ever been recorded for an electric motor in its class (and possibly for every engine)”.
According to Tim Woolmer, CTO of Yasa, a new prototype produces 550 kW and weighs only 13.1 kg. This corresponds to a very impressive specific force of 42 kW/kg. As Road & Track, notices: “This is more power than a standard hellcat engine, in one device you can pick up and hold in your hands.”
According to Woolmer, the new engine does not use exotic materials, should be mass production at 10,000 to 50,000 units per year and “insane cooling capacity”. The continuous performance is “close” with only standard cooling fluids.
The axial river engines from Yasa are naturally more thinner than the radial river engines used in most EVs. As we have found in our reporting on Orbis engine, the ability to put more electricity into a smaller room could make electrification possible for new vehicles. We probably thought about cool things like tractors and construction machines, but Road & Track found that “a single electric motor with so much electricity with a relatively irrelevant weight would be a great help for packaging, especially for sports cars.”
Source: Street & track
