why no hydraulic drive train in road vehicles?
If all the cars were hydrolic, there would have enough water left for us.
Because with any measurable speed, there's absolutely no torque. This is the reason why even earthmoving equipment that requires any sort of force combined with speed utilizes either direct drive or diesel over electric drive.
/thread
>>14729946
There is also a shitload of heat produced and hydraulic drives dont like to roll
>>14729930
ineffecient over what we currently have.
>>14729965
Yep, this too.
I'm waiting for OP to give any reason for hydraulic drive.
>>14729930
Wasted power and very little torque
>>14729975
Gr8 post m8
>>14729979
i was just wondering
>>14729930
have ever rode in a diesel-hydraulic train?
shit sucks. and accelerating even to 55 mph takes 3 minutes
>>14729930
The only benefit of this is placing drive motors in small places where drive shafts, or half shafts and diffs cant go.
You all bitch about power loss with a torque converter, this is like 10x worse.
>>14729946
You can /thread your own response you fucking cockwit.
>>14730646
And you can continue to repeat what's already been said, drop kick.
Were you deprived of oxygen as a new born?
>>14730646
People do it all the time/thred
>>14729946
No, this is not how hydraulic drives function. They do not lose torque as an effect of an increase in speed. Please stop rehashing false information.
Whilst hydraulic drive is very slow there is still high torque output at high shaft speed. The torque output multiplies as the shaft speed decreases as long as line pressure remains the same. Hydraulic devices excell at low speed high output applications like rams, chambers, warping drums and capstans where the full potential energy of the line is used slowly. The heat output is immense and the system is very high maintenance with major safety issues resulting if the maintenance is not upheld. A hydraulic drive system would very easily require more frequent maintenance and refits than a mechanically coupled engine.
With the mention of earthmoving equipment using DoE or straight mechanical coupling as well as DoH or EoH this is done purely for device speed over the ground, not to offset low torque output. The hydraulic drive will not lose torque as the rotation speed increases. It will lose power when it overspeeds, when line volume reduces or line pressure reduces.
tl;dr - hydraulic drives keep torque at high levels all the way to overspeed but are slow, hot, labour intensive and at times temperamental fuckers that pump a flammable liquid along large stretches of flexible hose at atomising pressures. The burns are horrific and the leaks on a poorly maintained unit are frequent. Not for this little black duck.
>>14729930
>inb4 hundreds of cucks who have no idea how hydraulics work
Cheap pumps and motors make noise turn slow and are wasteful. Good pumps and motors cost money, more money than transmissins and final drives cost.
Variable-displacement bent-axis pumps and motors could get rid of the shafts and shit on a diesel truck, but you'd pay out every orifice for the pleasure.
PS Google shit you retarded lazy niggers. That is all
>>14729999
nice quads but you're still a dummy
>>14729930
Efficiency and weight.
Only practical if you already have a hydraulic system and don't need to go very fast.
