11–20 of 55 posts
Virtually zero torque right?
You could improve it by making the cylinders have sticky-out bits that would scoosh the fluid around better, like little paddle wheels, and if you wanted to get some serious torque transfer you'd push the two paddle wheels so close together that the paddles actually kind of intersect.
Ever driven a vehicle with an automatic transmission rather than a manual gearshift with a clutch? Then you almost certainly used a fluid coupling: basically two fans in a can with oil so turning one turns the other. The article is so full of hype it doesn't bother to explain how this is different from the "fluid gears" invented in 1905.
Are you sure?
https://en.wikipedia.org/wiki/Continuously_variable_transmis...:
“The most common type of CVT uses a V-belt which runs between two variable-diameter pulleys.
[…]
A belt-driven design offers approximately 88% efficiency, which, while lower than that of a manual transmission, can be offset by enabling the engine to run at its most efficient speed regardless of the vehicle's speed.
[…]
Disadvantages of a hydrostatic CVT include:
Reduced efficiency. Gears are one of the most efficient methods of mechanical power transmission, with efficiencies as high as 90 percent in many cases. In contrast, few hydrostatic transmission systems achieve more than about 65 percent efficiency”
Virtually zero torque right?
I don't see how it could even have any measurable torque. You could improve it by making the cylinders have sticky-out bits that would scoosh the fluid around better, like little paddle wheels, and if you wanted to get some serious torque transfer you'd push the two paddle wheels so close together that the paddles actually kind of intersect.
Ever driven a vehicle with an automatic transmission rather than a manual gearshift with a clutch? Then you almost certainly used a fluid coupling: basically two fans in a can with oil so turning one turns the other. The article is so full of hype it doesn't bother to explain how this is different from the "fluid gears" invented in 1905.
> Ever driven a vehicle with an automatic transmission rather than a manual gearshift with a clutch? Then you almost certainly used a fluid coupling Are you sure? https://en.wikipedia.org/wiki/Continuously_variable_transmis... : “The most common type of CVT uses a V-belt which runs between two variable-diameter pulleys. […] A belt-driven design offers approximately 88% efficiency, which, while lower than that of a ma…
https://en.wikipedia.org/wiki/Automatic_transmission#Hydraul...
How is this different from slushomatics? Sounds exactly like old school fluid couplings.
Ever driven a vehicle with an automatic transmission rather than a manual gearshift with a clutch? Then you almost certainly used a fluid coupling: basically two fans in a can with oil so turning one turns the other. The article is so full of hype it doesn't bother to explain how this is different from the "fluid gears" invented in 1905.
Ever driven a vehicle with an automatic transmission rather than a manual gearshift with a clutch? Then you almost certainly used a fluid coupling: basically two fans in a can with oil so turning one turns the other. The article is so full of hype it doesn't bother to explain how this is different from the "fluid gears" invented in 1905.
> Ever driven a vehicle with an automatic transmission rather than a manual gearshift with a clutch? Then you almost certainly used a fluid coupling Are you sure? https://en.wikipedia.org/wiki/Continuously_variable_transmis... : “The most common type of CVT uses a V-belt which runs between two variable-diameter pulleys. […] A belt-driven design offers approximately 88% efficiency, which, while lower than that of a ma…
I'm not a fan of the bias towards "Gears are old tech, and that makes them bad" but I can see a lot of interesting possibilities with fluid coupling. The variables involved in power transmission for these things would be pretty wild to characterize, and the article video clearly shows inefficiencies in the system with the driven cylinder having counter rotational flow against it.
If the gears don't at least require an app with a subscription and regular updates to use, they must be old tech
/sarcasm
Used since the 60s lol