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公开(公告)号：US20190323476A1
公开(公告)日：2019-10-24
申请号：US15774460
申请日：2016-11-09
Inventor： Eiichi Takahashi , Takehiko Segawa
Abstract: Stable combustion becomes possible even in a super-lean combustion engine or an engine that carries out a large amount of EGR. In a spark discharge ignition promoting apparatus, non-thermal plasma is generated in a cylinder by a non-thermal plasma generating unit. The non-thermal plasma generating unit is provided at a location where a processed air-fuel mixture by the non-thermal plasma reaches a spark plug after an in-cylinder flow or where the air-fuel mixture exists around an electrode of the spark plug in a time when the air-fuel mixture keeps an easy combustion state. The spark plug ignites the processed air-fuel mixture by discharge of the spark plug at timing when the processed air-fuel mixture by the non-thermal plasma of an easy combustion state reaches the spark plug after an in-cylinder flow or timing when the air-fuel mixture of the easy combustion state exists around an electrode of the spark plug in the time when the air-fuel mixture keeps the easy combustion state.
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公开(公告)号：US09951800B2
公开(公告)日：2018-04-24
申请号：US14420015
申请日：2013-06-24
Inventor： Takehiko Segawa , Takayuki Matsunuma , Timothy Jukes
CPC classification number: F15D1/0075 , B60L5/005 , B60L5/20 , B60L2200/26 , B64C2230/12 , F01D11/20 , F03D80/00 , F04D29/38 , F04D29/681 , F04D29/687 , F05B2240/30 , F05D2270/172 , H05H1/2406 , H05H2001/2412 , Y02E10/721 , Y02T50/166 , Y02T50/671
Abstract: A surface plasma actuator includes a conducting wire attached to a surface of a target object and electrically insulated from the target object. Surface plasma is generated along a neighborhood of the conducting wire by applying a pulse voltage between the conducting wire and a conductive portion on a side of the target object. An induced gas flow is generated by the surface plasma.
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公开(公告)号：US11930584B2
公开(公告)日：2024-03-12
申请号：US17638241
申请日：2020-08-21
Inventor： Takehiko Segawa
IPC: H05H1/24
CPC classification number: H05H1/2425
Abstract: A plasma actuator includes: a dielectric layer; a first electrode provided on the obverse surface of the dielectric layer; a second electrode provided, on the reverse-surface side of the dielectric layer, in one direction from the first electrode; a floating conductor pair that is provided between the first electrode and the second electrode and that has an obverse-surface conductor provided on the obverse surface of the dielectric layer and a reverse-surface conductor provided on the reverse-surface side of the dielectric layer, the obverse-surface conductor and the reverse-surface conductor being electrically connected to each other, electrically insulated from the first electrode and the second electrode, and positioned in the order of the reverse-surface conductor and the obverse-surface conductor in the one direction from the first electrode in plan view; and a power source connected to the first electrode and the second electrode.
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公开(公告)号：US09909602B2
公开(公告)日：2018-03-06
申请号：US14420015
申请日：2013-06-24
Inventor： Takehiko Segawa , Takayuki Matsunuma , Timothy Jukes
Abstract: A surface plasma actuator includes a conducting wire attached to a surface of a target object and electrically insulated from the target object. Surface plasma is generated along a neighborhood of the conducting wire by applying a pulse voltage between the conducting wire and a conductive portion on a side of the target object. An induced gas flow is generated by the surface plasma.
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