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New page: The '''Ball piston engine (Wolfhart engine)''' is an internal combustion rotary engine that uses two intertwined rotors instead of reciprocating pistons....
The '''Ball piston engine (Wolfhart engine)''' is an [[internal
combustion engine|internal combustion]] [[rotary engine]] that uses two
intertwined rotors instead of reciprocating pistons. It was invented by
German physicist Wolfhart Willimczik.
A spherical piston rotates in combination with a spherical housing,
whereby the rotational axes incline towards each other slightly. In
these way “strokes” are created within the rotational system generating
periodic volumetric changes in the 2 working chambers adjacent to the
dividing wall. Every nutation can be described as two oscillations
around two axes perpendicular to each other. One generates the stroke
motion, the other generates a rocking motion of the edge of the piston
what allowed the closing of the exhaust before opening the opening for
fresh gas, ergo an unsymmetrical control table as possible by four
stroke engines only.
It works as a two stroke engine without any valves, but with
unsymmetrical control times
and direct lubrication as an four stroke engine. It has the best
possible kinematic as rotary piston machine with rotations only around
the centers of gravity (no orbiting parts). This engine unifies the
advantages of al three categories. Purpose of this invention was to
overcome the shortcomings of the [[Wankel engine]], especially to avoid
high sliding speed of the sealing parts. Here is the sliding speed in
the same range as by a classical piston engine. Higher sustained
rotating speeds are possible due to the absence of oscillating inertial
forces.
combustion engine|internal combustion]] [[rotary engine]] that uses two
intertwined rotors instead of reciprocating pistons. It was invented by
German physicist Wolfhart Willimczik.
A spherical piston rotates in combination with a spherical housing,
whereby the rotational axes incline towards each other slightly. In
these way “strokes” are created within the rotational system generating
periodic volumetric changes in the 2 working chambers adjacent to the
dividing wall. Every nutation can be described as two oscillations
around two axes perpendicular to each other. One generates the stroke
motion, the other generates a rocking motion of the edge of the piston
what allowed the closing of the exhaust before opening the opening for
fresh gas, ergo an unsymmetrical control table as possible by four
stroke engines only.
It works as a two stroke engine without any valves, but with
unsymmetrical control times
and direct lubrication as an four stroke engine. It has the best
possible kinematic as rotary piston machine with rotations only around
the centers of gravity (no orbiting parts). This engine unifies the
advantages of al three categories. Purpose of this invention was to
overcome the shortcomings of the [[Wankel engine]], especially to avoid
high sliding speed of the sealing parts. Here is the sliding speed in
the same range as by a classical piston engine. Higher sustained
rotating speeds are possible due to the absence of oscillating inertial
forces.