Variable stroke and compression ratio engine
OwnerSteven Don Arnoldinventor
Life of this patent
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Abstract
A variable stroke and compression ratio engine employs multiple pistons connected to a wobbler. A crank with an axis of rotation has an upper journal with a first angle relative to the axis and a lower journal with a second angle with respect to the axis. A cradle connected for rotational motion with respect to the wobbler is carried by the crank with sliding engagement to the upper and lower journals for translation between a first high eccentricity position and second low eccentricity position.
Claims19
A variable stroke and compression ratio engine comprising:
- a plurality of pistons connected to a wobbler;
- a crank having an axis of rotation and
- an upper journal with a first angle relative to the axis and
- a lower journal with a second angle with respect to the axis;
- a cradle carried by the crank with sliding engagement to the upper and lower journals for translation thereon between a first high eccentricity position and second low eccentricity position;
- means for anti-rotational connection of the crank to the cradle;
- and
- means for rotational connection of the wobbler to the cradle.
A piston control system for a variable stroke and compression ratio engine comprising:
- means for carrying a wobbler on a crank for actuation by a plurality of at least three pistons in a circular pattern;
- means for translating the wobbler relative to a first angle for control of bottom dead center position of the pistons;
- means for simultaneously translating the wobbler relative to a second angle for control of top dead center position of the pistons.
A method for controlling the output power of an internal combustion engine comprising:
- carrying a wobbler on a crank having an axis of rotation for actuation by a plurality of at least three pistons in a circular pattern;
- translating the wobbler relative to a first angle with respect to the axis of rotation for adjustment of bottom dead center position of the pistons;
- simultaneously translating the wobbler relative to a second angle with respect to the axis of rotation for adjustment of top dead center position of the pistons.
Dependencies are inferred from the claim text.