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US 6,883,473 B2Granted
Radial motor/pump
OwnerAnthony Leonardus Wondergeminventor
Life of this patent
Estimating the term…
Abstract
A radial motor or pump has a stator inside which a rotor rotates. The stator carries one or more radial cylinders in each of which a piston is slidable. The end of each cylinder or a ring slidable therein bears against and is a sealing rubbing fit with the internal surface of the stator. The pistons are connected as by connecting rods to a crank pin of a crankshaft. Gears interconnect the stator, rotor and crankshaft to cause the rotor and crankshaft to rotate at the same speed but in opposite directions.
Claims24
A rotary fluid pressure machine comprising
- a stator,
- a first surface formed on an interior surface of the stator as a surface of revolution about a first axis,
- a rotor,
- a second surface formed on part of the rotor as a surface of revolution about the first axis, the first and second surfaces being mounted for relative sliding rotation,
- a cylinder formed in the rotor and extending substantially radial to the first axis,
- a piston slidable axially in the cylinder and being in a sliding fit therein,
- a crank shaft,
- coupling means interconnecting the piston and the crank shaft, the coupling means causing reciprocation of the piston in the cylinder to rotate the crank shaft or rotation of the crank shaft to cause reciprocation of the piston in the cylinder,
- a port formed in the stator extending through said first surface at a predetermined circumferential location in the stator, fluid passing to or from the cylinder through said port,
- drive means interconnecting the rotor and the crank shaft, the drive means being arranged to rotate the rotor and the crank shaft relative to the stator at predetermined speeds and directions of rotation, and
- a plurality of said cylinders and said pistons being disposed along a length of the crank shaft such that, in use, an area of said first surface swept by each one of said plurality of cylinders is different from an area of said first surface swept by any other of said plurality of cylinders.
8 more elements
A rotary internal combustion engine comprising
- a stator,
- a first surface formed on an interior surface of the stator as a surface of revolution about a first axis,
- a rotor,
- a second surface formed on part of the rotor as a surface of revolution about the first axis, the first and second surfaces being mounted for relative sliding rotation,
- a plurality of cylinders formed in or on the rotor and extending substantially radial to the first axis and spaced evenly circumferentially,
- a piston slidable axially in each cylinder and being in a sliding fit therein,
- a crank shaft formed with a crank throw and a crank pin thereon,
- connecting rods connecting each piston to a same crank pin or each to a separate one of a plurality of coaxial crank pins, for each cylinder there being a port formed in the stator extending through said first surface, at a predetermined circumferential location in the stator, through which port fluid passes to or from the cylinder, each said port being exposed to only one of said cylinders during rotation thereof,
- drive means interconnecting the rotor and the crank shaft, the drive means being arranged to rotate the rotor and the crank shaft relative to the stator at predetermined speeds and directions of rotation, and
- a plurality of said cylinders and said pistons being disposed along a length of the crank shaft such that, in use, an area of said first surface swept by each one of said plurality of cylinders is different from an area of said first surface swept by any other of said plurality of said cylinders.
7 more elements
Dependencies are inferred from the claim text.