IN Knight and Day(2010) the are talkung about a diesel Hydraulic Train Locomotive engine. I didn't know something like that even existed. So, I checked and something like this does exist when extra torque for mountains is necessary and useful. Interesting.
I only knew it would be theoretically possible to build and engineer something like this after working with Tractors landscaping Contractor in San Diego county when I was in my late 20s and early 30s.
Because Tractors lifting capabilities like on Backhoes and loaders are Diesel Hydraulic Too!
begin quote:
Key Characteristics and Usage:
- Transmission Mechanism: They use hydraulic fluid in a converter to transmit engine power to the wheels.
- Advantages: Lighter weight compared to diesel-electric, excellent starting tractive effort, no wheel-slip under load, and high acceleration, making them ideal for hilly, mountainous terrain.
- Regional Popularity: Germany was a leader in this technology (e.g., V200 class), developing them post-WWII, and they are still used in parts of Europe, India, and Japan.
- Applications: Primarily used for passenger railcars (DMUs) and light switcher engines, rather than heavy freight hauling, which is dominated by diesel-electric.
- North American Context: While mostly used in Europe, some diesel-hydraulic locomotives, such as the German-built Krauss-Maffei models, were used in North America in the 1960s, though they were not widely adopted.
While
they offer advantages, their, often higher maintenance costs led to the
dominance of diesel-electric technology, according to the YouTube video from 2018 and the Reddit post.
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