ROTOR CONSTRUCTION

cm.= radius of the cirkels to draw the trochoid shape = diameter of inner gear wheel =radius of the outer gear wheel.

cm.= minimal width of the rotor.


cm.= maximum distance from the crank.

cm.= minimal distance from the crank.

cm.= maximum width of the rotor.
cm.= is the crank radius, also the grid spacing in this picture, and the radius of the inner gear wheel.
cm.= outside diameter of the cylinder where the displacer rotor can be made of.
The green cross (X)is the place where the crank goes through the rotor.

ROTOR HOUSE CONSTRUCTION

cm.= Distance between the sealings in the housing wall to separate the upper and lower chambres.

cm.= inner height of the rotor housing.


cm.= distance between the center of the crankshaft and the top of the rotor housing.

cm.= crank radius = spacing of the grid.

cm.= maximum width of the rotor housing.
The green circle (O)is the circle where the heart of the crank goes through the rotor.
The white circle (O)is the pitch circle the internal gear on the rotor.

Equivalent sizes for a cylinder replacer to use in a stirling design program:
Use the same crank radius.
For the length of the connecting rod, take a big size, like 9999999. If the program does not ask for this input, it means that the program assumes that the gas displacement is sinodial. This is not exact the case for pistonconnecting rodcrank combination, but perfect for this type of circular displacer.
cm.= cm, is de equivalent piston diameter, or cylinder diameter to use.
