Electro-Motive
On September 1, 1935, he accepted a position in the Electro-Motive Corporation (from 1941, it was renamed to Electro-Motive Division of General Motors). It was here Blomberg was given responsibility for the construction of locomotive bodies, frames and truck frames. The EMC E4 diesel-electric locomotive was mostly his design, including the three-axle (A1A) truck. In 1939 he designed the four-wheel flexible truck frame from the three-axle version for the new diesel-electric freight locomotive called the EMD FT. This four-wheel truck frame and its derivations were incorporated in more than 15,000 locomotives. Unofficially, but generally accepted, the two-axle trucks, Blomberg B and Blomberg M, are named after him. The two-axle AAR Type A switcher truck is also a Blomberg design.
Blomberg registered over 100 patents with the US Patent and Trademark Office during his 32 years with EMD. In 1947, he became lead engineer after the chief engineer of EMD.
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