V12 Solenoid Engine

First view of my home made V12 solenoid engine running. Engine spec is in description below.
Also see - V8 solenoid engine: https://www.youtube.com/watch?v=uhYEdD94vH0
See more cool solenoid engines on my channel: https://www.youtube.com/channel/UCihznO2OXSWgUv3TFQPpOjg
Engine description
Technical details:
Type: 60 degree V12 electric piston engine
Maximum RPM: 3,200 RPM
Input voltage: 24 volts dc
Speed controller: Mechanical PWM
Cylinder bore diameter: 8mm
Piston stroke length: 10mm
Total theoretical displacement: 6cc
Firing order: 1, 12, 5, 8, 3, 10, 6, 7, 2, 11, 4, 9 (Same as old type Ferrari)
Main bearing size: 4x9x4 mm (684zz)
Big end bearing size: 4x9x4 mm (684zz)
Flywheel mass: 900g
Switching transistors: 2N3055
Solenoid model: SOLEN 121E16530 (with built in flyback diode)
Total mass of engine: 6kg approximately
Exhaust emissions: zero

More information:
A solenoid engine uses the magnetic pull of solenoids to turn a crankshaft, and resembles the architecture of an internal combustion engine. The crankshaft on this engine is made up of one hundred and forty individual parts bolted together, and is fully counterweighted to balance the rotational mass. The flywheel is an old drill / lathe chuck of some sort (army surplus), the engine has a tachometer pulse generator on the rear of the timing / distributor shaft to run the red LED tachometer, it uses Meccano timing chain and sprockets, and has a key ignition switch for added style. This engine can run both as a four stroke or as a two stroke, and can switch while running. This engine does not develop much torque, certainly much less torque than a standard rotary electric motor can produce, for the equivalent power input – for this reason the solenoid engine is just a novelty and an educational model.

I built this engine for fun, from mainly scrap metal and wood, and using mostly hand tools, and a basic drill press, during autumn 2014. It is based on a single cylinder prototype I had previously made here: https://www.youtube.com/watch?v=xiFonBrKQk0


You can watch stages of the V12 engine build here: https://www.youtube.com/watch?v=k64LixRRfEw

The solenoids I used are available here: https://www.esr.co.uk/electronics/switches-solenoid.htm

Be sure to subscribe to my channel for future new engine videos: http://www.youtube.com/subscription_center?add_user=davidrobert2007

Check out some of the other engines I have built if you like -

My first solenoid engine #1: https://www.youtube.com/watch?v=GIbJPPuufwU

Single solenoid engine #2: https://www.youtube.com/watch?v=ijETfxeNJBk

Fast single solenoid engine #3: https://www.youtube.com/watch?v=4XCUK0fpBT4

Steam engine style solenoid engine: https://www.youtube.com/watch?v=UmN57xc7Mm4

V8 solenoid engine: https://www.youtube.com/watch?v=uhYEdD94vH0

V12 solenoid engine updated - 35 volts 3,200rpm: https://www.youtube.com/watch?v=IXIl0RlTom4

Thanks for watching.
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