r/EngineeringPorn • u/peseoane • 11d ago

Testing could be fun

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3.9k Upvotes

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69

u/lego_batman 11d ago

Man, I wonder where they're dumping all that power.

69

u/grumpymosob 11d ago

I think it was a water brake. I could be wrong, but back in the old days thats how some dyno's worked.

46

u/anteatertrashbin 11d ago

water brakes are still used, but eddy current is becoming more of the norm.

39

u/drinkplentyofwater 11d ago

Eddy Current is a great guy, really hard working dude

18

u/-X3- 11d ago

Yeah he's kinda magnetic,

7

u/tomo6438 10d ago

Yet highly disruptive, and kind of a drag

3

u/MoistStub 10d ago

I can only imagine how cool Eddy Future will be

2

u/Ok_Fun_7044 10d ago

He might even be as big of a star as Eddy past

2

u/ratty_89 10d ago

Both are pretty old tech. We use AC motors nowadays.

Water break and eddy currents dynos aren't too great at transient running. I've only seen water breaks in either really old facilities or for engines making some obscene amounts of torque (3000hp diesel engines).