Sunday, 6 March 2016

Homemade vacuum engine

Homemade Vacuum engine

vacuum engine (also called flame-licker engine) derives its force from air pressure against one side of the piston, which has a partial vacuum on the other side of it. At the beginning of an outstroke, a valve in the head of the cylinder opens and admits a charge of burning gas and air, which is trapped by the closing of the valve and expands. Towards the end of the stroke the charge comes into contact with a water- or air-cooled part of the cylinder and is chilled, causing a sudden drop in pressure sufficient to suck the piston – which is open towards the crank – back on the return stroke. The valve opens again in time for the piston to expel the burnt gases before the next outstroke begins.


1. Step   (2016.03.06)
  Hi, i decided to make vacuum engine in home. I never done something like this before, but always wanted to do it, so let's start.

I had few aluminium pieces of 30mm diameter, took one, started to make a cylinder.

I think it's not bad. The hole diameter is 14mm. Cylinder diameter 29mm, Cylinder hole depth is about 35mm. Need piston now...

So here is "final product" :) Now I have to design all other parts to fit for this cylinder. I will do it with Solidworks. 
P.s. Piston diameter is 14mm length 14.8mm. 
Please comment if you have any ideas, or if you will see, that i am doing something wrong. :) 
You will see progression in a few days.