Driving Pneumatic Engines

[SNIPE]

Hi,

Is there any way I can drive a 1 cylinder pneumatic engine from inside of the car, I have seen external air compressors.

I don't really need to store the air, more use it at around the same time as its drawn in and compressed.

I'm hoping to use something like nicjasno's engines but a 1 cylinder to keep it compact (I can lie this down flat or upright.)

and ill make it as minimal as possible so the engine is light, but I don't know how much air pressure id need, maybe around

2 bar but this is a wild guess.

Edited February 3, 2014 by SNIPE

[nicjasno]

You need much less.

[SNIPE]

Ok, that's a good thing, this is for an F1 sort of car, it will be bigger than normal technic F1 sets.

[nicjasno]

If you want speed this is of course not a good way to do things. Electric motors are much better for that.

[SNIPE]

Really? I thought some pneumatic engines would be way faster than a lego electric motor.

I want to use a pneumatic engine as its different and is harder, never made one before and its easy to stick an electric motor on to a car where as here you have to build the engine and the clutch from several parts.

Im very sure I've seen very fast lego pneumatic engines, I don't think having more cylinders makes so much difference because I've seen V8's with high RPM but smaller engines with just as much or more, and the car is going to be compact so i'm just using a single cylinder.

Edited February 3, 2014 by SNIPE

[Dayton]

Really? I thought some pneumatic engines would be way faster than a lego electric motor.

I want to use a pneumatic engine as its different and is harder, never made one before and its easy to stick an electric motor on to a car where as here you have to build the engine and the clutch from several parts.

Im very sure I've seen very fast lego pneumatic engines, I don't think having more cylinders makes so much difference because I've seen V8's with high RPM but smaller engines with just as much or more, and the car is going to be compact so i'm just using a single cylinder.

Yes power functions are great because they all have though small wires and you can do a bit more with them that pneumatics.

[nicjasno]

A pneumatic engine makes sense in something that requires a big deal of power (think steam engines :P), but if you want a racing car that is compact and light and fast... you need to take electric motors.

[Marcel1980]

Use the rc buggy motors from lego. These are the fastest.

[SNIPE]

How about I keep the pneumatic engine but just drive it by the wheels (push it manually) or by a motor, it doesn't need to go fast I just want a big technic model with an engine and all the other parts working instead of just using a typical technic engine which has few parts.

Here I'd like to see the engine working and the one way clutch doing its stuff , same goes for the supercharger and steering/suspension etc.

im not quite sure how to make a 1 cylinder pneumatic engine.

Edited February 7, 2014 by SNIPE

[nicjasno]

Edited February 7, 2014 by nicjasno

[gti180]

Hi NICOJASNO Just seen your video, do pneumatic engines produce more torque than the electric ones?

[nicjasno]

In general, yes. That one cylinder probably not though :P

[gti180]

interesting....

[SNIPE]

will the pneumatic cylinders need modifying, the wheels just move the engine when the car is pushed along so I don't need pneumatic tubing or anything.

[nicjasno]

If not moded, the cylinders by themselves move very hard and slow and act like a very stiff shock absorber.