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Our Customers

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The Tognum Group is one of the world's leading suppliers of engines and propulsion systems for off-highway applications and of distributed energy systems.  These products are based on diesel engines with up to 9,100 kW power output, gas engines up to 2,150 kW and gas turbines up to 45,000kW.

Our Story

Although the Jacobs Engine Brake has been on the market since 1961, the need for it was terrifyingly demonstrated to its inventor Clessie L. Cummins, some thirty years earlier. In August of 1931, himself, Ford Moyer, and Dave Evans driving a Cummins diesel powered Indiana truck from New York to Los Angeles...

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Featured Technology

RSD

ADT (Active Decompression Technology)

For Start-Up and Shutdown Engine Strategies When drivers expressed frustration with anti-idling regulations, Jacobs’ engineers developed a device to improve start-up and shutdown engine technology.

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