A Study on the Design of Electromagnetic Valve Actuator for VVT Engine. Seung-hyun Park, Dojoong Kim. Electromagnetic valve. The electromagnetic piston engine consist of a cylinder and a piston. PDF, TXT or read online from Scribd. Flag for inappropriate content. Ogura is the worlds largest manufacturer of electromagnetic clutches and brakes with over 3,000 standard and custom clutch and brake designs.
Electromagnetic propulsion (EMP), is the principle of accelerating an object by the utilization of a flowing electrical current and magnetic fields. The electrical current is used to either create an opposing magnetic field. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163
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A New Electromagnetic Valve Actuator W. Electromagnetic, Engine, Nonlinear, Mechanical, Spring, Transformer, Valve. Simple Electromagnetic Engine using piston and flywheel by Jestin. Intro Intro: Simple Electromagnetic Engine using piston and flywheel. Moments of force acting on the loop in the field of the magnet. 6 c) Two-loop electromagnetic engine 1) Krzysztof Go.
Patent US6. 04. 91. Electromagnetic piston engine.
TECHNICAL FIELDThe present invention relates to an electromagnetic piston engine adapted to produce driving power by the electromagnetic force created by a reciprocal movement of a piston in a cylinder. BACKGROUND TECHNOLOGYIn the recent years, the development of electric vehicles is exploding. Such electric vehicles use an electric drive motor as a power source. Conventional electric drive motors are designed to pick up rotational energy of a rotor as a power by directly rotating the rotor by electromagnetic force.
The electric drive motors of such a type, however, lead naturally to an increase in the weight of a rotor in order to pick up greater outputs and, as a consequence, suffer from the disadvantages that the weight of the portion corresponding to a rotary assembly section becomes heavy. The such electric drive motors require a power transmission mechanism for transmitting the driving power from a power source to the wheels to be designed to be adapted to the features of the such electric drive motors.
Power transmission mechanisms for internal combustion piston engines, which have been generally used for conventional vehicles, cannot always be applied to electric vehicles as they are. These problems impose greater burdens upon the designing of electric vehicles.
For internal combustion piston engines, there are a variety of resistance that result from their structures. They may include, for example,(1) Air intake resistance of an air cleaner; (2) Resistance of a cam shaft; (3) Compression resistance in a cylinder; (4) Resistance of a piston to an inner wall of a cylinder; (5) Resistance of a cooling fan; (6) Resistance of a water pump; and(7) Resistance of an oil pump. The loss of energy due to those resistances are the causes of reducing the energy efficiency of the internal combustion piston engines.
An overall system assembly of the internal combustion piston engine further has the additional problem with an increase in the entire weight due to the necessity of installment of a mechanism for cooling the internal combustion piston engine because the internal combustion piston engine cannot avoid the generation of a considerably large amount of heat by the principles of the engine themselves. Given the foregoing problems inherent in conventional internal combustion piston engines, the present invention has the object to provide an electromagnetic piston engine which can offer the effects of eliminating the various resistances inherent in the conventional internal combustion piston engines, reducing the weight corresponding to a rotary assembly section even if greater outputs can be taken, further making ready applications to power transmission mechanisms for use with conventional internal combustion piston engines, and achieving improved efficiency in utilizing energy. DISCLOSURE OF THE INVENTIONThe electromagnetic piston engine according to the present invention in one aspect comprises a cylinder and a piston, each made of a magnetic material, a cylinder electromagnet having an inner wall of the cylinder magnetizable to a one magnetic pole, and a piston magnetization unit for magnetizing a portion of the piston engageable with the cylinder to a single magnetic pole in a fixed manner, in which the piston is transferred in a one direction by creating a magnetic attraction force between the cylinder and the piston by exciting the cylinder electromagnet; and the piston is then transferred in the opposite direction by creating a magnetic repellent force therebetween, followed by repeating this series of the actions of alternately creating the magnetic attraction force and the magnetic repellent force to allow the piston to perform a reciprocal movement. The electromagnetic piston engine according to the present invention in another aspect comprises a cylinder and a piston, each made of a magnetic material, a piston electromagnet having a one magnetic pole on a portion of the piston engageable with the cylinder, and a cylinder magnetization unit for magnetizing an inner wall of the cylinder to a single magnetic pole in a fixed manner, in which the piston is transferred in a one direction by creating a magnetic attraction force between the cylinder and the piston by exciting the piston electromagnet; and the piston is then transferred in the opposite direction by creating a magnetically repellent force therebetween, followed by repeating this series of the actions to allow the piston to perform a reciprocal movement. The electromagnetic piston engine according to the present invention in a further aspect comprises the cylinder and the piston, each made of a magnetic material, the cylinder electromagnet having a one magnetic pole on the inner wall of the cylinder, and the piston electromagnet having a one magnetic pole on a portion of the piston engageable with the cylinder, in which the piston is transferred in a one direction by creating a magnetic attraction force between the cylinder and the piston by exciting the cylinder electromagnet and the piston electromagnet; and the piston is then transferred in the opposite direction by creating a magnetically repellent force therebetween, followed by repeating this series of the actions to allow the piston to perform a reciprocal movement.
The electromagnetic piston engine according to the present invention in a still further aspect is constructed by arranging a combination of the cylinder with the piston in - the aspects described above as a one assembly, arranging the one assembly in plural numbers and operating the plural assemblies in a parallel way, and converting a reciprocal movement of the piston in each of the plural assemblies into a rotary movement of a single crank shaft by a crank mechanism. BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGSFIG. FIG. 2 is views showing an appearance of a cylinder portion and a piston portion of the electromagnetic piston engine according to the above embodiment of the present invention. FIG. 3 is views showing a variation of a brush according to the embodiment of the present invention. FIG. 4 is a table showing brief experimental results relating to magnetic force. FIG. 5 is views showing a cylinder and piston assembly according to the embodiment of the present invention. FIG. 6 is views showing a variation in a cylinder and piston assembly according to the embodiment of the present invention.
FIG. 7 is views showing a cooling device according to the embodiment of the present invention. FIG. 8 is a view showing a non- contact type booster coil excitation mechanism of the electromagnetic piston engine according to the embodiment of the present invention.
FIG. 9 is views showing outer poles of the non- contact type booster coil excitation mechanism of the electromagnetic piston engine according to the embodiment of the present invention. FIG. 1. 0 is a view showing inner poles of non- contact type booster coil excitation mechanism of the electromagnetic piston engine according to the embodiment of the present invention. FIG. 1. 1 is a view showing an electromagnetic piston engine according to another embodiment of the present invention.
FIG. 1. 2 is views showing examples of engagement of a cylinder with a piston. FIG. 1. 3 is a view showing an electromagnetic piston engine having a 6- series assembly according to an embodiment of the present invention. FIG. 1. 4 is views for describing a procedure of driving the electromagnetic piston engine with a 6- series assembly by a three- phase alternating electric power. FIG. 1. 5 is views for describing another procedure of driving the electromagnetic piston engine with 6- series assemblies by a three- phase alternating electric power. FIG. 1. 6 is views for describing a procedure of driving the electromagnetic piston engine with 6- series assemblies by a battery using a mechanical rectifier. FIG. 1. 7 is views for describing directions of excitation currents of an exciting coil according to the embodiment of FIG.
FIG. 1. 9 is views showing an electromagnet mechanism for two assemblies according to another embodiment of the present invention. FIG. 2. 0 is views for describing another procedure of driving the electromagnetic piston engine with 6- series assemblies by a battery using a mechanical rectifier. FIG. 2. 1 is views showing a variation of the mechanical rectifier of FIG. FIG. 2. 3 is a view showing a wiring way of each electric pole in the rotary switch. FIG. 2. 4 is a view showing a non- contact type two- part ring in a non- contact type rotary switch. FIG. 2. 5 is views each showing a non- contact type ring in a non- contact type rotary switch.
BEST MODES OF CARRYING OUT THE INVENTIONThe present invention will be described in more detail by way of examples with reference to the accompanying drawings. FIG. 1 is a transverse view in section showing an example of the electromagnetic piston engine according to the present invention. The cylinder 2 and the outer cylinder 3 are each of a shape having its top portion closed. An outer wall at the top portion of the cylinder 2 is formed integrally with a connecting portion 4. The cylinder 2 is disposed in the interior of the outer cylinder 3 with the connecting portion 4 arranged so as to come into abutment with an inner wall at the top portion of the outer cylinder 3. The connecting portion 4 is fixed to the top portion of the outer cylinder 3 with a mounting screw 1.
An exciting coil 5 is wound about the connecting portion 4. On an outer side of the top portion of the outer cylinder 3 are mounted two electrodes 6 which in turn pass over the entire length to the inner wall side of the outer cylinder 3 and are connected to lead wires at the both ends of the exciting coil 5, respectively, to excite the exciting coil 5 through the electrode 5.