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    • 1. 发明专利
    • Combustion control system for internal combustion engine
    • 内燃机燃烧控制系统
    • JP2009097413A
    • 2009-05-07
    • JP2007269296
    • 2007-10-16
    • Toyota Motor Corpトヨタ自動車株式会社
    • HASEGAWA AKIRASATO YASUO
    • F02P23/04
    • PROBLEM TO BE SOLVED: To provide a technique for favorably carrying out the optimum combustion control of an internal combustion engine in accordance with the operating conditions of the internal combustion engine by using a technology for radiating infrared ray into fuel spray in a cylinder, and measuring CO
      2 concentration in the fuel spray based on change of intensity of infrared ray before and after passing the fuel spray.
      SOLUTION: The system is provided with: a radiation means to radiate infrared ray to a plurality of positions in the fuel spray by a fuel injection valve; an intensity variation means to vary the intensity of the infrared ray radiated by the radiation means; a concentration measuring means to measure a CO
      2 concentration at a position where the infrared ray is radiated based on a measured value of the intensity of the infrared ray passing CO
      2 as the infrared ray of such wavelength as to be easily absorbed by CO
      2 to CO
      2 in the cylinder by the radiation means, with its intensity set to be proper for measuring by the intensity variation means; and an ignition means to ignite fuel at the position where the infrared ray is radiated as the infrared ray set to the intensity for ignition by the intensity variation means to the fuel spray in the cylinder by the radiation means.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种根据内燃机的运行条件有利地进行内燃机的最佳燃烧控制的技术,其通过使用将红外线照射到气缸中的燃料喷雾中的技术 ,并且基于通过燃料喷雾之前和之后的红外线强度的变化来测量燃料喷雾中的CO 2 浓度。 解决方案:该系统设置有:通过燃料喷射阀将红外线辐射到燃料喷雾中的多个位置的辐射装置; 强度变化装置,用于改变由辐射装置辐射的红外线的强度; 基于通过CO 2 的红外线的强度的测量值来测量红外线照射的位置处的CO 2 浓度的浓度测量装置,作为 通过辐射装置在气缸中易于被CO 2 吸收到CO 2 的波长的红外线,其强度设定为适于用强度测量 变异手段 以及点火装置,其中将红外线照射的位置处的燃料作为由强度变化装置设定的用于点火的强度的红外线通过辐射装置点燃到气缸中的燃料喷射。 版权所有(C)2009,JPO&INPIT
    • 2. 发明专利
    • Intake device of internal combustion engine
    • 内燃机装置
    • JP2009030443A
    • 2009-02-12
    • JP2007191952
    • 2007-07-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • ITO HIROKAZUSATO YASUOTAKADA TOMOYUKI
    • F02B31/02F02B31/00F02M35/104
    • Y02T10/146
    • PROBLEM TO BE SOLVED: To provide an intake device of an internal combustion engine capable of restraining an increase in a cooling loss, while restraining weakening of a swirl flow.
      SOLUTION: A swirl Fsw and a counterflow Fre having a component in the direction opposed to this swirl, are formed in a cylinder 2 by two intake ports 4 and 5. One intake port 4 is constituted so that a flow F1 flowed out in the cylinder 2 has the speed distribution larger in a flow speed on the distance side from a peripheral wall surface 2a than a flow speed on the near side to the peripheral wall surface 2a. The other intake port 5 is constituted so that a flow F2 flowed out in the cylinder 2 is smaller in a flow speed on the distant side from the peripheral wall surface 2a than a flow speed on the near side to the peripheral wall surface 2a, and has the speed distribution larger in the size of the flow speed on its near side than the size of the flow speed on the near side of the flow F1 flowed out of the intake port 4.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供能够抑制冷却损失增加的内燃机的进气装置,同时抑制涡流的削弱。 解决方案:具有与该涡流相反的方向的分量的涡流Fsw和逆流Fre被两个进气口4和5形成在气缸2中。一个进气口4被构造成使得气流F1流出 气缸2的速度分布比周壁面2a的距离侧的流速比在近侧的流速到周壁面2a的速度分布大。 另一个进气口5构成为使得在气缸2中流出的流F2比在周壁面2a远的一侧的流速比在近侧至周壁面2a的流速更小, 其速度分布比流动速度在其近侧的流速大小比从流入口4流出的流动F1的近侧的流速的大小更大。(C)2009年,JPO和INPIT
    • 4. 发明专利
    • Fuel injection nozzle for internal combustion engine
    • 燃油喷射喷嘴用于内燃机
    • JP2008088911A
    • 2008-04-17
    • JP2006271570
    • 2006-10-03
    • Toyota Motor Corpトヨタ自動車株式会社
    • HORIKOSHI OSAMUSATO YASUOITOU HISANORITAKADA TOMOYUKIITO HIROKAZU
    • F02M61/18F02M61/10
    • PROBLEM TO BE SOLVED: To provide a technology capable of more equally injecting fuel in a fuel injection nozzle for injecting fuel from a plurality of injection holes formed in a nozzle body into a combustion chamber.
      SOLUTION: The fuel injection nozzle 1 is for opening and closing a valve by a needle 3 proceeding and retreating inside a guide hole 4 of the nozzle body 2. The fuel injection nozzle 1 is provided with a conical seat part 7 at the tip end of the guide hole 4 of the nozzle 2, and the plurality of the injection holes 6 are opened distributed in the radial or the axial direction in a sack chamber 8 disposed at the top of the seat part 7. Further, a part of the fuel introduced into the sack chamber 8 when opening the valve by retreating the needle 3 is leaked to the outside by a leak passage 15. Thereby, fuel pressure at the opening of the plurality of injection holes 6 is equalized.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够在用于将燃料从喷嘴体中形成的多个喷射孔喷射到燃烧室中的燃料喷嘴中更均匀地喷射燃料的技术。 解决方案:燃料喷射喷嘴1用于通过针3开启和关闭阀,并在喷嘴体2的引导孔4的内部进行后退。燃料喷射喷嘴1在 喷嘴2的引导孔4的前端,并且多个喷射孔6在设置在座部7的顶部的袋室8中沿径向或轴向分开。此外,一部分 当通过后退针3打开阀门时引入到袋室8中的燃料被泄漏通道15泄漏到外部。由此,多个喷射孔6的开口处的燃料压力相等。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Fuel injection nozzle
    • 燃油喷射喷嘴
    • JP2008057367A
    • 2008-03-13
    • JP2006233245
    • 2006-08-30
    • Toyota Motor Corpトヨタ自動車株式会社
    • ITOU HISANORISATO YASUOHORIKOSHI OSAMUTAKADA TOMOYUKIITO HIROKAZU
    • F02M61/18
    • PROBLEM TO BE SOLVED: To provide a technology enabling more constant fuel injection in a fuel injection nozzle injecting fuel from a plurality of injection holes formed on a sac chamber.
      SOLUTION: A cone shape seat part 17 is provided on a tip of a guide hole of a nozzle body 12. The sac chamber 18 is provided on the top part of the seat part 17. The sac chamber 18 comprises a cylinder part 18a and a cone part 18b. Angle θ between the seat part 17 and a conical surface of the cone part 18b is set to10 degrees or more and height H of the cylinder part 18a is set to a value between 1/3-2/3 of diameter D of the cone part 18a.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够在燃料喷嘴中进行更恒定的燃料喷射的技术,其从形成在囊室上的多个喷射孔喷射燃料。 解决方案:锥形座部17设置在喷嘴主体12的引导孔的尖端上。囊室18设置在座部17的顶部。囊室18包括圆筒部 18a和锥形部分18b。 座部17与圆锥部18b的圆锥面的角度θ设定为10度以上,圆筒部18a的高度H设定为圆锥部的直径D的1 / 3-2 / 3之间的值 18A。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Intake device for internal combustion engine
    • 内燃机装置
    • JP2007285149A
    • 2007-11-01
    • JP2006110727
    • 2006-04-13
    • Toyota Motor Corpトヨタ自動車株式会社
    • HORIKOSHI OSAMUSATO YASUOITOU HISANORITAKADA TOMOYUKIITO HIROKAZU
    • F02B31/00F02B31/02
    • Y02T10/146
    • PROBLEM TO BE SOLVED: To provide an intake device capable of suppressing the interference of a sucked air flowing out of a helical port with the swirl flow generated in a cylinder.
      SOLUTION: In the intake device of an internal combustion engine, two intake ports 4, 5 formed in the same cylinder 2 of the internal combustion engine 1 are respectively constituted as helical ports. In one intake port 4, the turning direction of a helical part 4b is set in the same direction as the flowing direction of the swirl flow Fsw, and the position of a helical terminating end 4c is merged with an introduction part 4d. In the other intake port 5, the turning direction of the helical part 5b is set to be the direction opposite to the flowing direction of the swirl flow Fsw, and the helical part 5b is turned around a valve shaft 7a of an intake valve 7 over substantially one half circumference.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够抑制从螺旋口流出的吸入空气与气缸中产生的涡流的干扰的进气装置。 解决方案:在内燃机的进气装置中,形成在内燃机1的同一气缸2中的两个进气口4,5分别构成螺旋口。 在一个进气口4中,螺旋部分4b的转动方向设定在与涡流Fsw的流动方向相同的方向上,螺旋终止端4c的位置与导入部分4d合并。 在另一个进气口5中,螺旋部分5b的转动方向设定为与涡流Fsw的流动方向相反的方向,并且螺旋部分5b围绕进气门7的阀轴7a转过 大致一个半圆。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Intake port of internal combustion engine
    • 内燃机港口
    • JP2007198303A
    • 2007-08-09
    • JP2006019137
    • 2006-01-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • SATO YASUOITOU HISANORIHORIKOSHI OSAMUHOKI YUSUKETAKADA TOMOYUKIITO HIROKAZU
    • F02B31/00F02F1/42
    • Y02T10/146
    • PROBLEM TO BE SOLVED: To concurrently secure both strong swirl and high charging efficiency.
      SOLUTION: The upper wall surface 14 of an intake port 4 at the intake air inflow passage part 8 is formed of a first upper wall surface 14a and a second upper wall surface 14b lower than the first upper wall surface 14a. A lower layer flow passage X and an upper layer flow passage Y are formed on both sides of the top part of the second upper wall surface 14b. The side wall surface 9 of a spiral part 7 so extends as to close the downstream end of the lower layer flow passage X. A lower layer flow guide pipe 20 extending from the lower layer flow passage X to an intake valve opening area Z is installed. A lower layer flow flowing in the lower layer flow passage X produces swirl by flowing in the circumferential direction of a combustion chamber 3 after passing through the intake valve opening area Z when the intake valve 6 is opened. An upper layer flow flowing in the upper layer flow passage Y flows into the combustion chamber 3 after passing through the spiral part 7.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:同时确保强旋涡和高充电效率。 解决方案:进气口4在进气通道部分8处的上壁表面14由比第一上壁表面14a低的第一上壁表面14a和第二上壁表面14b形成。 下层流路X和上层流路Y形成在第二上壁面14b的顶部的两侧。 螺旋部分7的侧壁表面9延伸以关闭下层流动通道X的下游端。从下层流动通道X延伸到进气门开口区域Z的下层流动引导管20被安装 。 在下层流路X中流动的下层流动在进气阀6打开时通过进气阀开口区域Z后沿着燃烧室3的周向流动而产生涡流。 在上层流路Y中流动的上层流通过螺旋部7后流入燃烧室3内。(C)2007,JPO&INPIT
    • 10. 发明专利
    • Compression ignition internal combustion engine
    • 压缩点火内燃机
    • JP2006194190A
    • 2006-07-27
    • JP2005007981
    • 2005-01-14
    • Toyota Motor Corpトヨタ自動車株式会社
    • ITOU HISANORISATO YASUOTAKAGI HIDEYUKI
    • F02B23/06F02D41/04F02D41/38F02D41/40F02D45/00F02F3/26F02M45/02F02M61/14
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To realize improvement of a problem accompanying with pilot injection while realizing reduction of combustion noise by the pilot injection in a compression ignition internal combustion engine for performing the pilot injection.
      SOLUTION: The compression ignition internal combustion engine for performing the pilot injection is provided with a first fuel injection valve 3 formed by an axial symmetry cavity 14 in which a part of a combustion chamber has an axial symmetry cross section relative to a predetermined axis L1 and further injecting a fuel into the combustion chamber at a radial shape approximately making a position on the predetermined axis L1 as a center; and a second fuel injection valve 9 for injecting the fuel in a normal direction of swirl in the combustion chamber along an inner wall surface of a cylinder. Two injection of the first pilot injection and the second pilot injection are performed at an earlier timing than main injection as the pilot injection, the first pilot injection is performed from the first fuel injection valve 3, the second pilot injection is performed from the second fuel injection valve 9 and the main injection is performed from the first fuel injection valve 3.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了实现引燃喷射中的问题的改进,同时通过在用于执行引燃喷射的压缩点火内燃机中的先导喷射实现燃烧噪声的降低。 解决方案:用于执行引燃喷射的压燃式内燃机设置有由轴向对称腔14形成的第一燃料喷射阀3,其中燃烧室的一部分相对于预定的 并且以大致将预定轴线L1上的位置作为中心的径向形状进一步向燃烧室喷射燃料; 以及第二燃料喷射阀9,其用于沿着气缸的内壁面在燃烧室内沿正向的涡流喷射燃料。 在与先导喷射相比主喷射的更早的时刻执行第一引燃喷射和第二引燃喷射的两次喷射,从第一燃料喷射阀3执行第一引燃喷射,从第二燃料喷射 喷射阀9,并且从第一燃料喷射阀3进行主喷射。(C)版权所有(C)2006,JPO&NCIPI