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    • 1. 发明专利
    • Laser ignition apparatus
    • 激光点火装置
    • JP2013164042A
    • 2013-08-22
    • JP2012028260
    • 2012-02-13
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • KANEHARA KENJIMORISHIMA SHINGOSUGIURA AKIMITSU
    • F02P23/04H01S3/00
    • F02P23/04H01T13/50
    • PROBLEM TO BE SOLVED: To provide a laser ignition apparatus which focuses pulsed laser light having high power density, into an air-fuel mixture introduced into a combustion chamber of an internal combustion engine and ignites the internal combustion engine, the laser ignition apparatus that can prevent an optical system from being damaged by catoptric light, while controlling deposits formed on a surface of a cover glass, and thus has a high reliability.SOLUTION: When a surface on a combustion chamber side of a cover glass 14 which is disposed to separate and protect a condenser lens 13 from a combustion chamber 500 is taken as a reference plane (142), a catoptric light focal point BFP is positioned substantially symmetric to a focal point FP toward a base end of the cover glass. The BFP is designed to fall in an area where solid material forming the condenser lens 13 or the cover glass 14 is not present.
    • 要解决的问题:提供一种激光点火装置,其将具有高功率密度的脉冲激光聚焦到引入内燃机的燃烧室中的空气燃料混合物中并点燃内燃机,该激光点火装置可 防止光学系统被反射光损坏,同时控制形成在盖玻璃表面上的沉积物,因此具有高可靠性。解决方案:当盖玻璃14的燃烧室侧的表面被设置为分离时 将聚光透镜13从燃烧室500保护作为参考平面(142),将反射光焦点BFP与焦点FP大体对称地朝向盖玻璃的基端。 BFP被设计成落在形成聚光透镜13或盖玻璃14的固体材料不存在的区域中。
    • 2. 发明专利
    • Laser ignition device
    • 激光点火装置
    • JP2013096392A
    • 2013-05-20
    • JP2011243286
    • 2011-11-07
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • MORISHIMA SHINGOKANEHARA KENJIABE YUYASUGIURA AKIMITSU
    • F02P23/04H01S3/00H01S3/042H01T15/00
    • F02P23/04
    • PROBLEM TO BE SOLVED: To provide a laser ignition device having superior mountability, while restraining the distortion of an optical axis due to mechanical stress, thermal stress, formation of a deposit, and the like, thus capable of achieving a stable ignition.SOLUTION: An exciting light induction optical element 21, a pulse light expansion optical element 15 and a pulse light concentration optical element 11 are respectively constituted by respective optical lenses adapted for respective applications and lens storing cabinets of approximately cylindrical shape, while at the tip end side or base end side of the optical elements disposal evasion regions (L, L) of housings 10, 20, optical elements storing spaces 101, 106, 201 are laid out as reference planes (S, S, S), whereas the respective optical elements 11, 15, 21 are elastically pressed against the reference planes (S, S, S).
    • 要解决的问题:提供一种具有优异的安装能力的激光点火装置,同时抑制由于机械应力,热应力,沉积物形成等导致的光轴的变形,从而能够实现稳定的点火 。 解决方案:激光感光光学元件21,脉冲光扩展光学元件15和脉冲光聚光光学元件11分别由适用于各种应用的各个光学透镜和近似圆柱形的透镜储存柜构成,而在 外壳10的光学元件处理回避区域(L 1 ,L 4 )的前端侧或底端侧, 如图20所示,光学元件存储空间101,106,201被布置为参考平面(S 1 ,S 2 < SB POS =“POST”> 3 ),而各个光学元件11,15,21被弹性按压在参考平面上(S 1 ,S 2 ,S 3 )。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • 光学素子封止構造体とその製造方法、及び、レーザ点火装置
    • 光学元件密封结构,其制造方法和激光点火装置
    • JP2015001158A
    • 2015-01-05
    • JP2013124373
    • 2013-06-13
    • 株式会社日本自動車部品総合研究所Nippon Soken Inc株式会社デンソーDenso Corp
    • KANEHARA KENJISUGIURA AKIMITSUMORIOKA ATSUSHI
    • F02P23/04
    • 【課題】気密性、耐久性にすぐれた光学素子封止構造体と、その製造方法、及び、これらを用いた信頼性の高いレーザ点火装置を提供する。【課題を解決する手段】ホルダ11に、保護ガラス10の一方の端面が当接する保護ガラス係止部110と、保護ガラス10の外周に対して所定の間隙GP(0.01mm以上0.05mm以下)を隔てて穿設せしめた保護ガラス位置決め溝部111と、保護ガラス10の外周の一部又は全周を覆うように穿設せしめた封止ガラス収容溝部112と、を設け、封止ガラス12を600℃以下のガラス転移温度を有する低融点ガラスで形成して、封止ガラス12の融着により、光学素子10とホルダ11とを気密に封止する。【選択図】図1A
    • 要解决的问题:提供一种具有优异的气密性和耐久性的光学元件密封结构及其制造方法,以及使用该光学元件密封结构的高可靠性激光点火装置。光学元件密封结构包括:保持器11,其具有: 保护玻璃10的一个端面与其抵接的保护玻璃接合部110; 保护玻璃定位槽部111,其在保护用玻璃10的外周之间形成预定间隙GP(0.01mm以上0.05mm以下) 以及覆盖保护玻璃10的一部分或全部的外周的凹部的密封玻璃容纳槽部112.密封玻璃12通过使用玻璃化转变温度为600°的低熔点玻璃形成 C以下,并且通过熔合密封玻璃12以气密的方式密封光学元件10和保持器11。
    • 4. 发明专利
    • Ignition device
    • 点火装置
    • JP2014123435A
    • 2014-07-03
    • JP2012277679
    • 2012-12-20
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • OKABE SHINICHINAKASE YOSHIHIROSUGIURA AKIMITSUABE YUYA
    • H01T13/20F02P13/00H01T13/54
    • H01T13/52F02P9/007H01T13/20H01T13/50
    • PROBLEM TO BE SOLVED: To achieve stable ignition by effectively using energy in an ignition device including a center electrode 10, a center dielectric 11 of an approximately bottomed cylindrical shape, a ground electrode 12 of an approximately cylindrical shape, disposed on the same axis as the center dielectric 11 with a discharge gap 130 between them, and a high energy power source 3 that applies a high voltage of a predetermined frequency.SOLUTION: An ignition device comprises; a dielectric diameter changed part 201 in which part of a center electrode discharge part 100 covered with a dielectric leading end bottom part 110 and dielectric leading end cylindrical part 111 is projected into a combustion chamber 51 from a ground electrode leading end part 120 of an approximately annular shape, which is open in the combustion chamber 51 of an internal combustion engine 5, and in which it is reduced in diameter such that part of the dielectric leading end cylindrical part 111 projecting from the ground electrode leading end part 120 is reduced in diameter toward the leading end; and a dielectric thin wall part 200 in which the wall thickness Tof its leading end is made thin.
    • 要解决的问题:为了通过在包括中心电极10,大致圆筒形状的中心电极11,近似圆筒形状的接地电极12的点火装置中有效地使用能量来实现稳定的点火,该接地电极12设置在与 中间电介质11在它们之间具有放电间隙130,以及施加预定频率的高电压的高能量电源3.解决方案:点火装置包括: 电介质直径改变部201,其中覆盖有电介质前端底部110和电介质前端圆筒部111的中心电极放电部100的一部分从大致上的接地电极前端部120突出到燃烧室51中 环形形状在内燃机5的燃烧室51中开口,其直径减小使得从接地电极前端部120突出的电介质前端圆筒部111的一部分直径减小 走向前方 以及其前端的壁厚Tof薄的电介质薄壁部200。
    • 7. 发明专利
    • Ignition device
    • 点火装置
    • JP2014041788A
    • 2014-03-06
    • JP2012184246
    • 2012-08-23
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • OKABE SHINICHISUGIURA AKIMITSUABE YUYA
    • H01T13/54F02P13/00H01T13/20
    • PROBLEM TO BE SOLVED: To provide an ignition device, performing volume ignition utilizing unbalanced plasma, which performs stable ignition effectively utilizing energy while suppressing preignition.SOLUTION: The frequency of an applied AC voltage is set to be 80-620 kHz and the capacity Vof a discharge space 130 is set to be 300 mmor less, or the discharge space length Lis set to be 1-10 mm, Further, the length Lof a center electrode tip part 100 covered with a center dielectric 11 is set to be longer than the discharge space length L, and the distance D2 from a tip of a center dielectric bottom part 110 to a top face of a piston 52 of an internal combustion engine is set to be longer than a discharge gap D1.
    • 要解决的问题:提供一种点火装置,利用不平衡等离子体进行体积点火,其在抑制预点火的同时有效利用能量进行稳定点火。解决方案:施加的交流电压的频率设定为80-620kHz,容量Vof 放电空间130设定为300mm以下,放电空间长度Lis设定为1〜10mm。此外,将由中心电介质11覆盖的中心电极端部100的长度L设定为长于 放电空间长度L和从中心电介质底部110的尖端到内燃机的活塞52的顶面的距离D2被设定为比放电间隙D1长。
    • 9. 发明专利
    • Ignition device
    • 点火装置
    • JP2014022341A
    • 2014-02-03
    • JP2012163209
    • 2012-07-24
    • Denso Corp株式会社デンソーNippon Soken Inc株式会社日本自動車部品総合研究所
    • ABE YUYASUGIURA AKIMITSUOKABE SHINICHINIWA MASAYUKI
    • H01T13/20F02P13/00H01T13/32H01T13/34
    • PROBLEM TO BE SOLVED: To provide an ignition device which represents satisfactory ignitability and durability even in an internal combustion engine where a strong cylinder inside airflow occurs within a combustion chamber.SOLUTION: An ignition device comprises at least: a center electrode 100 in a long shaft shape; a bottomed and tubular center dielectric body 110 covering the center electrode 100; a substantially annular grounding electrode 120; and a high energy power source 2 which applies a predetermined high voltage between the center electrode 100 and the grounding electrode 120 and performs discharging inside of a substantially tubular discharging space 130 partitioned between the center dielectric body 110 and the grounding electrode 120. The ignition device 1 ignites an engine 5 by reacting a non-equilibrium plasma generated by discharging with a mixture existing within the discharging space 130. At least the grounding electrode 120 protrudes towards the inside of a combustion chamber 52 of the engine 5 with a predetermined grounding electrode protruding height H, and the center dielectric body 110 protrudes with a center dielectric body protruding height Hequal to or higher than the grounding electrode protruding height H.
    • 要解决的问题:提供即使在燃烧室内发生气流中的强气缸的内燃机中也表现出令人满意的点火性和耐久性的点火装置。解决方案:点火装置至少包括:长的中心电极100 轴形; 覆盖中心电极100的有底和管状的中心电介质体110; 基本环形的接地电极120; 以及在中心电极100和接地电极120之间施加预定的高电压并且在中间电介质体110和接地电极120之间划分的基本管状的放电空间130内部进行放电的高能量电源2.点火装置 1通过使放电所产生的非平衡等离子体与存在于放电空间130内的混合物反应来点燃发动机5.至少接地电极120朝向发动机5的燃烧室52的内部突出,预定的接地电极突出 高度H,并且中心电介质体110以中心电介质体突出高度Hequal突出至高于接地电极突出高度H。
    • 10. 发明专利
    • Ignition device
    • 点火装置
    • JP2014182907A
    • 2014-09-29
    • JP2013055994
    • 2013-03-19
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • OKABE SHINICHINAKASE YOSHIHIROSUGIURA AKIMITSUABE YUYA
    • H01T13/20F02P3/01F02P13/00H01T13/32H01T15/00
    • PROBLEM TO BE SOLVED: To implement stable ignition by efficiently utilizing energy in an ignition device in which a high frequency electric field acts within a discharge space to perform volume ignition of an air-fuel mixture.SOLUTION: In an ignition device 1, a part of a center electrode discharge part 100 of a center electrode 10 covered with a center dielectric 11 protrudes into a combustion chamber 51 of an internal combustion engine 5, and a first field concentration part 200 is provided at a specific position of a ground electrode discharge part 120 facing a discharge space 130, such that streamer discharge easily occurs in the first field concentration part 200. Further, a second field concentration part 201 is provided closer to the combustion chamber 51 from the first field concentration part 200, such that streamer discharge moves closer to the combustion chamber 51. Thus, a flame is propagated on early stage into the combustion chamber 51, and ignitability is improved.
    • 要解决的问题:通过在点火装置中有效利用能量来实现稳定的点火,其中高频电场作用在放电空间内以进行空气 - 燃料混合物的体积点燃。解决方案:在点火装置1中, 由中心电介质11覆盖的中心电极10的中心电极放电部100突出到内燃机5的燃烧室51中,在接地电极排出部的特定位置设置第一场致聚部200 120,使得在第一场致聚部分200容易发生流光放电。此外,第二场致聚部201从第一场致聚部200靠近燃烧室51设置,使得流光放电移动 更靠近燃烧室51.因此,火焰在早期阶段传播到燃烧室51中,并且提高了点火性。