hydraulic driven go-cart

[liftcam]

i was wondering if anyone has made or come across a hydraulic driven go-cart cause i would like to build one for my son who is 6years old i don't want it to go fast but would like it to have plenty of torque so if anyone could offer any advice would be helpfull ty p.s i,am from the uk

 

[Kaptain Krunch]

That seems like it would be very inefficient, since you would need to use a gas or electric motor to get hydraulic pressure to power a hydraulic motor anyways.

 

[jorge0136]

I know the older international cub cadets riding mowers had a hydro static drive. Mine goes along at a fast enough clip that if I turn a corner too quickly it starts to tip over . Might be the perfect speed for a kid lower to the ground. The engines are something in the way of 12-16 hp I think and somewhat inefficient as described. However it would be very easy to control the speed of the kart and would have backwards as well as forwards. The kart would be more complicated to drive however as the engine speed would need be adjusted, in addition to the hydro controls.

 

[freakboy]

To put it short its not worth it.

 

[Doc Sprocket]

Engine, pump, oil reservoir, motor, valving, etc. This equates to a fair bit more weight than you may want. Cost, too. Yes, you'd have very fine control over the speed, and yes, it'd be torquey as hell (I regularly use an old Bolens hydro for moving my boat and utility trailers around, and it never breaks a sweat.), I don't think I'd go that way. It would have the power and weight to seriously bulldoze anything your son pointed it at. Ouch!

I started building a kart for my kids a couple years ago (they're now 7 and 9 with no driving experience) and I went with a centrifugal clutch, and jackshaft setup. I can regear for speed as they grow. Right now I've got it up somewhere around 14:1. Controllably slow, and more than enough stones to haul my adult rearend around. I have no worries about roasting that clutch anytime soon. Just for the record, it's a heavy-arse frame (overbuilt it my first time out) and while slow, I mash the throttle and it'll spin the wheels on varying surfaces.

If you build it, it'll work, it'll be cool, and I'll wanna see it. I just don't think you really want to.

Good luck! Cheers- Chris

 

[toofarnorth]

Weight could be a factor but on the plus side you could us a vertical shaft engine witch are much easier to come by than a horizontal shaft, and you could also get some pumps for the front tires and make it AWD.

 

[ed1380]

engine always run at constant speed turning the pump.

 

[TOO FAST]

Not a great idea, heavy hard to control, hydro units use a lot of
power etc. Go with a geared down conventional set up or go
electric.

p.s. sorry to hear your from the u.k.

 

[motor_head]

if you really want to do it you'd need a engine pump flow ajuster valve hydrolic motor and hoses you wouldn't need breaks if there is to oil pushed thought the motor they DO NOT SPIN you could use a pipe whench on it and they dont budge

not that i think its a great idea just trying to answer the question i hate that when people think it's a dumb idea (sometimes it is) and would answer the question

 

[liftcam]

pk ty 4 the imput so if i was to go along the line of a centrefuguile way what would i need? the name of the said ting would help like i said i is open to all ideas ty again (2 east get a life ya goat ????k??) sorry to all

 

[freakboy]

ummmmm sorry but i dont see what the hell your trying to type. I hate to tell you this but when you use acctual words things are alot easyer to read.

 

[EagleTalons]

It says. I'm British and I can't type worth a darn.

 

[freakboy]

i thought it said im British we invented the English language so now we can butcher it.

 

[vandancouver]

forget the hydro set up, get a normal engine, gear it low for torque,

 

[toofarnorth]

If you're actually thinking of building a hydraulic driven go kart I'd suggest you check out http://www.hydraulicinnovations.com/ they should be able to help you with your project.

 

[EagleTalons]

I think someone was going to use steering pumps for some type of hydraulic drive...

 

[toofarnorth]

Most power steering pumps have to be spinning before they produce hydraulic pressure(they need centrifugal force to throw the vanes out) so they might work as the pump but they wouldn't work as a motor.

 

[Ec1564]

Most power steering pumps have to be spinning before they produce hydraulic pressure(they need centrifugal force to throw the vanes out) so they might work as the pump but they wouldn't work as a motor.

I am currently building up a hydro transmission with nothing but power steering pumps. I am using ones from the Chrysler frontwheel drive cars of the mid 80's to early 90's. Those pumps will motor when you run fluid backwards. Your are right some pumps need to be up to speed before they will pump fluid and those will not work as hydro motors. The design I am making up will use 4 of the power steering pumps(1 as pump, 3 as motors) and will be able to "shift gears" by directing fluid between the 3 motors, 3 motors=low gear, 2 motors =2nd gear, 1 motor is high gear. Hopefully the torque loads will not destroy the pumps being used as a hydro motor. Only way is to build it and drive it!

 

[ed1380]

im not sure how this works but lemme take a stab at it. fluid going through 3 motors meants 3x the torque but 3x less speed and so on?

 

[TOO FAST]

Please keep us informed on the progress of this and post pics
as you can. Sounds interesting