US 6,049,146 A · Electromagnetic piston engine

Abstract

The present invention relates to an electromagnetic piston engine capable of producing driving power by a reciprocal movement of a piston in a cylinder by electromagnetic force. The present invention has the objects to provide the electromagnetic piston engine which can do without a variety of resistance inherent in internal combustion piston engines, which reduces the weight corresponding to a rotary assembly portion to a smaller value even if a great output is produced, which can be readily employed together with power transmission mechanisms and so on for use with conventional internal combustion piston engines, and which has a high efficiency in energy consumption. The electromagnetic piston engine is provided with the cylinder and the piston made each of a magnetic material as well as with as the cylinder electromagnet having the inner wall of the cylinder magnetizable to a one magnetic pole and with the piston magnetization unit for magnetizing a portion of the piston engageable with the cylinder to a single magnetic pole in a fixed manner. The magnetization of the cylinder electromagnet generates magnetically attracting force between the cylinder and the piston to cause the piston to move in a one direction and thereafter magnetically repellent force to transfer the piston in the opposite direction. This series of the actions are repeated to provide a continual reciprocal movement of the piston.

Claims20

Dependent claims

An electromagnetic piston engine comprising a cylinder made of a magnetic material, a piston made of a magnetic material and adapted to reciprocally move within the cylinder, a cylinder magnetization unit including an exciting coil for magnetizing the cylinder, and a piston magnetization unit for magnetizing a portion of the piston engageable with the cylinder so as to form a magnetic pole;

wherein the cylinder magnetization unit is disposed so as to magnetize the cylinder at a periodical interval and acts as a magnetic force between the cylinder and the piston to produce a reciprocal movement of the piston;
and
wherein the piston magnetization unit comprises a permanent magnet mounted on a base end side of the piston, and a booster coil mounted on the base end side of the piston for enhancing magnetic force of the permanent magnet in a manner that current is fed to the booster coil through a slidable contact mechanism.

An electromagnetic piston engine comprising at least two assemblies disposed so as to be operated in a row, each assembly is arranged so as to allow a piston to move in a cylinder in a reciprocal way, and each assembly converts a reciprocal motion of the piston of each assembly into a rotational motion of a crank shaft by means of a crank mechanism;

wherein each of said assemblies comprises a cylinder made of a magnetic material, a piston made of a magnetic material, and a cylinder magnetization unit including an exciting coil for magnetizing the cylinder to form a magnetic pole;
wherein the cylinder magnetization unit of each of said assemblies forms a magnetic pole at the respective cylinder at a periodical interval so as to provide a magnetic force between the cylinder and the piston, thereby permitting a reciprocal movement of the piston;
and
wherein each of said assemblies is disposed so as to form a magnetic pole at a portion of the piston engageable with the cylinder, and the cylinders of the assemblies are magnetically coupled with each other through a magnetic member so as to form a first magnetic pole at the cylinder of one of the assemblies and to form a second magnetic pole opposite to the first magnetic pole at the cylinder of the other assembly.

1 more element

Dependencies are inferred from the claim text.

Electromagnetic piston engine

Life of this patent

Electromagnetic piston engine

Life of this patent

Abstract

Claims20