Nada, Japan
Nada, Japan

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Patent
Imagineering Inc. | Date: 2017-04-05

A small-size injector having a built-in ignition device which can surely inject fuel and ignite the fuel with low electric power by the ignition device with a simple configuration is provided. The injector comprises a fuel injecting device 2 having a fuel injecting port 20 that injects the fuel, an ignition device 3 configured to ignite the injected fuel, and a casing 10 inside housing therein the fuel injecting device 2 and the ignition device 3 together. The ignition device 3 is constituted of a plasma generator 3 which integrally comprises a booster 5 having a resonation structure capacity-coupled with an electromagnetic wave oscillator MW configured to oscillate an electromagnetic wave, and a discharger 6 configured to cause a discharge of a high voltage generated by the booster 5.


Patent
Imagineering Inc. | Date: 2017-03-01

[PROBLEMS] An ignition plug is provided, in which a tip end part of a central electrode is not eroded and an electric power loss of the electromagnetic wave can be reduced, even in a case where a configuration is performed such that a high voltage for discharge and an electromagnetic wave are supplied from a terminal part side of an ignition plug. An electrode part 2 comprises a central electrode 2A including an electrode chip part for generating the spark discharge with the ground electrode 5, and a cylindrical insulating tube member 2B for covering the central electrode 2A. On the outer peripheral surface of the insulating tube member 2B, a conductive member 21 is provided so as to electrically connect the central electrode 2A with a terminal part 20 for receiving an electric power from the outside.


Patent
Imagineering Inc. | Date: 2017-04-05

A small-size injector having a built-in ignition device which can surely inject fuel and ignite the fuel with low electric power by the ignition device with a simple configuration is provided. The injector comprises a fuel injecting device 2 provided with a fuel injecting port 20 configured to inject the fuel, an ignition device 3 configured to ignite the injected fuel, and a casing 10 inside housing therein the fuel injecting device 2 and the ignition device 3 together. The ignition device 3 is constituted of a plasma generator 3 which integrally comprises a booster 5 having a resonation structure capacity-coupled with an electromagnetic wave oscillator MW configured to oscillate an electromagnetic wave, and a discharger 6 configured to cause a discharge of a high voltage generated by the booster 5.


Patent
Imagineering Inc. | Date: 2016-06-08

To provide a spark plug that can reduce power loss and prevent erosion of a tip end part of a central electrode, even in a configuration such that a discharge current and an electromagnetic wave are emitted from a terminal fitting part of the spark plug, and a plasma generation device using the spark plug. The spark plug is provided with a central electrode 2 including a terminal fitting part 2A and an electrode main body 2B electrically connected to the terminal fitting part 2A, an insulator 3 formed with an axial hole 30, which the central electrode 2 is fitted into, a main fitting 4 that surrounds the insulator 3, and a ground electrode 5 that extends from an end surface of the main fitting 4 and is adapted to form a discharge gap that causes a spark discharge between the central electrode 2 and the electrode main body 2B. The electrode main body 2B is constituted of a front electrode 25 including an electrode tip part 25a for causing the spark discharge with the ground electrode 5, a front dielectric cylinder 24 in a tube-like shape that covers the electrode tip part 25a, and a coupling conductive cylinder 23 in a tube-like shape that joins the front dielectric cylinder 24 and the terminal fitting part 2A.


Patent
Imagineering Inc. | Date: 2016-07-13

The present invention provides a plasma generator provided with a mixing circuit, said plasma generator being reduced in size and capable of being easily installed in a restricted space inside an engine. The present invention is a heat engine or a plasma generator provided with an ignition coil for supplying a discharge voltage, an electromagnetic wave oscillator that generates electromagnetic waves, a mixer that mixes energy for discharge with electromagnetic wave energy, and a spark plug that causes a discharge and introduces the electromagnetic wave energy to a reaction region. The discharge and electromagnetic wave energy are used together in the reaction region, wherein a combustion reaction or plasma reaction is carried out, triggering a combustion reaction or plasma reaction. The plasma generator is characterized in that part of a member that constitutes the spark plug is used as part of a member that forms the mixer.


Patent
Imagineering Inc. | Date: 2016-04-27

To provide an ignition plug having low power loss even though iron is a main component of a center electrode thereof, to which a high frequency power such as a microwave is electrically supplied. A low impedance layer 6 composed of a material having magnetic permeability lower than iron is provided between an outer peripheral surface of a center electrode 2 and an inner peripheral surface of an axial hole 30 of an insulator 3. The low impedance layer 6 is in contact with at least the outer peripheral surface (surface) of the center electrode 2, thereby reducing power loss of an electromagnetic wave flowing on the surface of the center electrode 2. More particularly, the low impedance layer 6 is made of silver, copper, gold, aluminum, tungsten, molybdenum, titanium, zirconium, niobium, tantalum, bismuth, palladium, lead, tin, an alloy composed mainly of these metals, or a composite material of these metals.


Patent
Imagineering Inc. | Date: 2015-10-28

[Problem] To provide a measuring equippment which can be easily mounted to an internal combustion engine. [Solution] A measuring equippment (30) is equipped with: a measurement container (31) having formed therein a chamber (34) to be measured, into which a gas to be measured enters, and an inlet passage, through which the gas to be measured is introduced into the chamber (34) to be measured; and a connection structure (32) which, when a plug is not mounted to a plughole (25) that opens into a combustion chamber (24) in an internal combustion engine (20), connects the inlet passage to the plughole(25). The measurement container (31) may be provided with a plasma generation device (45), which generates plasma in the chamber (34) to be measured, or a mounting structure for mounting a heating device, which heats the gas to be measured in the chamber (34) to be measured.


[Problem] To provide an ignition system for a compact internal combustion engine, which does not require a complex system or a spark plug which discharges a high voltage, and which, by using only electromagnetic waves, can efficiently generate, expand and maintain plasma. Moreover, to provide an internal combustion engine. This ignition system is characterized by comprising: an electromagnetic wave oscillator (3) which oscillates electromagnetic waves; a control device (4) that controls the electromagnetic wave oscillator (3); and a plasma generator (10) which integrates a booster circuit (5) containing a resonant circuit capacitive coupled with the electromagnetic wave oscillator (3), and a discharge electrode (6) which discharges a high voltage generated by the booster circuit (5), wherein the plasma generator (10) comprises a plurality of discharge electrodes (6) arranged so as to be exposed within the combustion chamber of the internal combustion engine.


Patent
Imagineering Inc. | Date: 2015-10-07

The present invention provides a plasma generating device that improves plasma generating efficiency for the power used and can further accommodate changes in plasma generating state because of changes in conditions of surroundings and the like. The present invention is a plasma generating device provided with an electromagnetic wave radiating device (13), which has an electromagnetic wave generating device (31) that oscillates electromagnetic waves and a radiating antenna (16) that radiates electromagnetic waves oscillated by the electromagnetic wave generating device (31), and a control device (35) that controls the electromagnetic wave radiating device (13). The plasma generating device is characterized by the electromagnetic wave radiating device (13) being provided with a power detector (15) that detects traveling wave power output by the electromagnetic wave generating device (31) and reflected wave power reflected from the radiating antenna (16) and the control device (35) automatically controlling the oscillation pattern for the electromagnetic waves on the basis of the proportion of the value for the reflected wave power to the value for the traveling wave power detected by the power detector (15).


Patent
Imagineering Inc. | Date: 2015-07-08

The present invention addresses the issue of improving generation efficiency of plasma in relation to usage power in a plasma generation apparatus. The present invention is directed to a plasma generation apparatus provided with an electromagnetic wave emission antenna and a discharge electrode. The plasma generation apparatus includes a plasma control device that controls generation of plasma, and is characterized that the plasma control device causes the electromagnetic wave emission antenna to intermittently emit electromagnetic waves by way of a drive sequence control. Especially, the plasma control device may preferably control an oscillating frequency, a power, output timing, a pulse width, a pulse cycle, and a duty cycle of the electromagnetic waves.

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