Eccentric Shaft with Plates

Written by Wesley Mahler

26.11.2005

Heres an interesting view on how the eccentric shaft is positioned between the side housings. It also shows the offset between the typically two rotors, and how the counter-weight helps balance the eccentric shaft.

Eccentric Shaft with Side Housings

Here is a great view on how the eccentric shaft is positioned in a rotary engine. This gives a realistic view on how the eccentric shaft sits and how the rotor journals offset each other.

Also if you notice in the first picture there is a counter weight. This gives you a visual on how the eccentric shaft is balanced. Although you can't see it, there is a key that holds the counter weight in place so it sticks to that position on the eccentric shaft. You can also see the location of the stationary gears, and visual how the rotors move around on the eccentric shaft and mesh into the gears.