Tailgunner088's Lego Technic Pneumatic Engines

[DLuders]

On YouTube, Tailgunner088 has uploaded several Lego Pneumatic Engines (LPEs) operating on different numbers of cylinders.

Lego Technic Compact V6 Pneumatic Engine: "This is the best compactness-to-torque ratio engine I could come up with. It doesn't revs high because there is only one valve per 3 cylinders, but instead, the torque is so huge there's no way to stop it with bare hands. It's going to power the LEGO DRIFT MACHINE. Stay tuned for first drifting video. What you can hear is not the sound of the engine itself, but a working air compressor":

http://www.youtube.com/watch?v=IBdcHv-VG6Y

Lego Technic V4 Pneumatic Engine: "This engine is a compromise between torque and speed. Camshafts are especially designed for maximum valve opening and timing. It can rev quite well still generating enough torque to be almost impossible to stop it with bare hands":

http://www.youtube.com/watch?v=8OC7U5mtz5E

[DLuders]

Here are two more of Tailgunner088's Lego Pneumatic Engine (LPE) creations on YouTube:

Lego Technic Short-Stroke Inline-3 Pneumatic Engine: "Due to short stroke and one valve per cylinder this engine is quite speedy with rather small torque. Surely needs gearing down for some practical use.

What you can hear is not the sound of the engine itself, but a working air compressor":

http://www.youtube.com/watch?v=fseclE2_hTA

Lego Technic

: "3 gears forward + reverse. Ratios 1:3, 1:2, 1:1 and 1:1.34. Also could have 4 gears forward with ratios 1:6, 1:4, 1:2 and 1:1 without reverse. There is a flywheel with a clutch, which in fact is just an elastic joint":

[timslegos]

Pretty good working engines. They look great as well.

tim

[jacobkristensen]

They look might good and strong, are you also using big cylinders in the V4?

[nicjasno]

Engines with oscilating cylinders will never be very fast.

[Burf2000]

I love Pneumatic engines!