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    • 11. 发明专利
    • Muffling device
    • MUFFLING DEVICE
    • JP2013160084A
    • 2013-08-19
    • JP2012020976
    • 2012-02-02
    • Honda Motor Co Ltd本田技研工業株式会社
    • ABE SHINTARO
    • F01N1/08F01N13/00F01N13/18F01N99/00
    • PROBLEM TO BE SOLVED: To attain further reduction in size and improvement of muffling effects for an exhaust muffler in a communicating-pipe or through-hole structure.SOLUTION: In a muffling device 1, a body shell is comprised of an upstream-side shell member 2, a tubular member 3 joined to a downstream side of the upstream-side shell 2, and a downstream-side shell member 4 joined to a downstream side of the tubular member 3 and within the shell, a plurality of muffling chambers 7A, 7B, 7C for reducing noise with discharge of pulsation waves generated from a discharge port of an internal combustion engine are defined by a plurality of partition walls 6A, 6B, 6C from the upstream side to the downstream side. In the muffling device 1, communication members 8A, 8B guiding circulation of the pulsation waves are provided through the partition walls 6A, 6B, the inside of a communicating flow passage 9 for the pulsation waves is comprised of the communication members 8A, 8B per se and the outside thereof is comprised of the tubular member 3.
    • 要解决的问题:为了进一步减小连通管或通孔结构中的排气消声器的消音效果的尺寸和改善效果。解决方案:在消音装置1中,主体壳体包括上游侧壳体 连接到上游侧壳体2的下游侧的管状部件3和与筒状部件3的下游侧连接并在壳体内的下游侧壳体部件4,多个消音室7A, 用于从内燃机的排出口产生的脉动波的排放降低噪声的7B,7C由从上游侧到下游侧的多个分隔壁6A,6B,6C来限定。 在消音装置1中,通过隔壁6A,6B设置引导脉动波循环的连通构件8A,8B,用于脉动波的连通流路9的内部由连通构件8A,8B本身构成 并且其外部由管状构件3组成。
    • 12. 发明专利
    • Exhaust pipe
    • 排气管
    • JP2013127210A
    • 2013-06-27
    • JP2011276291
    • 2011-12-16
    • Toyota Motor Corpトヨタ自動車株式会社
    • MURAKAMI HIROKI
    • F01N13/00F01N13/08F01N99/00F02D35/00F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To improve a gas collision of an oxygen concentration sensor more effectively and efficiently.SOLUTION: An EGR pipe attachment port 7 to which an EGR pipe 4 is attached is provided on a pipe 3 forming part of an exhaust passage of an internal combustion engine, and an oxygen sensor boss 5 for attaching the oxygen concentration sensor is provided at the exhaust downstream side of the pipe. A recess 8 that becomes hollow in the exhaust passage is formed at the exhaust upstream side of the EGR pipe attachment port 7 of the pipe 3, and thereby the recess 8 leads an exhaust flow to an oxygen sensor side.
    • 要解决的问题:更有效和更有效地改善氧浓度传感器的气体碰撞。 解决方案:在形成内燃机的排气通道的一部分的管3上设置有安装有EGR管4的EGR管安装口7,用于安装氧浓度传感器的氧传感器凸台5 设置在管道的排气下游侧。 在管3的EGR管安装口7的排气上游侧形成有在排气通路中形成中空的凹部8,凹部8将排气流向氧传感器侧。 版权所有(C)2013,JPO&INPIT
    • 13. 发明专利
    • Exhaust pipe structure of internal combustion engine
    • 内燃机排气管结构
    • JP2013124637A
    • 2013-06-24
    • JP2011275286
    • 2011-12-16
    • Honda Motor Co Ltd本田技研工業株式会社
    • NAGATA TAKAAKINAKAZAWA HIROYAKURIHARA HIROSHIKAMO NOBUO
    • F01N13/08F01N99/00
    • PROBLEM TO BE SOLVED: To provide an exhaust pipe structure of an internal combustion engine that can prevent concentration of stress at the upstream end of an exhaust pipe.SOLUTION: In this exhaust pipe structure of an internal combustion engine wherein an exhaust pipe 46 connected to an engine includes a tubular exhaust pipe body 85, a cylindrical part 86 mounted to the upstream end of the exhaust pipe body 85, and a flange part 87 arranged on the cylindrical part 86 and connected to an exhaust port on the engine side, the cylindrical part 86 includes an inclined end face 86b inclined by an angle θ3 with respect to the axis 86E of the cylindrical part 86, and the inclined end face 86b is jointed to an outer peripheral surface 85d of the exhaust pipe body 85, when viewing the most projecting part 86c most projecting in the inclined end face 86b and the most retreating part 86d most retreating from a direction orthogonal to the upper surface 87c of the flange part 87 as a joint surface to the exhaust port on the engine side, a virtual line 97 passing through the most projecting part 86c and the most retreating part 86d is inclined by an angle θ2 with respect to a cylinder axis 75 of the engine 2.
    • 要解决的问题:提供一种能够防止排气管上游端的应力集中的内燃机的排气管结构。 解决方案:在内燃机的这种排气管结构中,连接发动机的排气管46包括管状排气管体85,安装在排气管体85的上游端的圆筒部86,以及 凸缘部87布置在圆筒部86上并连接到发动机侧的排气口,圆筒部86包括相对于圆筒部86的轴线86E倾斜角度θ3的倾斜端面86b, 当观察最倾斜的端面86b中最突出的最突出部分86c和从与上表面87c正交的方向最退缩的最退缩部分86d时,端面86b接合到排气管体85的外周面85d 作为与发动机侧的排气口的接合面的凸缘部87,通过最突出部86c和最后退部86d的假想线97与角度θ2倾斜, 相对于发动机2的气缸轴线75.版权所有(C)2013,JPO&INPIT
    • 14. 发明专利
    • Support structure of exhaust gas after-treatment device
    • 排气后处理装置的支撑结构
    • JP2013123952A
    • 2013-06-24
    • JP2011272489
    • 2011-12-13
    • Mitsubishi Fuso Truck & Bus Corp三菱ふそうトラック・バス株式会社
    • OKAMURA KOJI
    • B60K13/04F01N3/00F01N13/00F01N99/00
    • PROBLEM TO BE SOLVED: To provide a support structure of an exhaust gas after-treatment device, improving the ease of installation of the exhaust gas after-treatment device and thereby improving the productivity and fuel economy of vehicles while attaining reduction in size, weight reduction and simplification of the support structure.SOLUTION: The support structure 1 of the exhaust gas after-treatment device 2 includes: a plurality of frame side brackets 8 provided side by side on the side of a frame 6 of a vehicle and having lower ends closed and grooves extending vertically; a plurality of device side brackets 10 provided side by side on the body of the exhaust gas after-treatment device and having insertion parts extending vertically for insertion in the grooves of the respective frame side brackets from above, respectively; and press members 12 pressing the device side brackets from above with the insertion parts inserted in the grooves to position and fix the device side brackets relative to the frame side brackets.
    • 要解决的问题:为了提供废气后处理装置的支撑结构,提高废气后处理装置的安装容易性,从而提高车辆的生产率和燃料经济性,同时实现尺寸减小 ,减轻重量并简化支撑结构。 解决方案:废气后处理装置2的支撑结构1包括:多个框架侧支架8,其在车辆的框架6的侧面上并排设置,并且具有下端封闭,并且垂直地延伸的槽 ; 多个装置侧支架10并列设置在废气后处理装置的主体上,并且具有分别从上方插入到各个框架侧支架的槽中的垂直延伸的插入部分; 并且按压构件12从上方按压装置侧支架,其中插入部分插入槽中,以使装置侧支架相对于框架侧支架定位和固定。 版权所有(C)2013,JPO&INPIT
    • 15. 发明专利
    • Exhaust manifold
    • 排气歧管
    • JP2013122199A
    • 2013-06-20
    • JP2011271013
    • 2011-12-12
    • Ud Trucks CorpUdトラックス株式会社
    • AKIYAMA HIDEO
    • F01N13/10F01N99/00
    • F01N13/10F01N13/1811F02M26/14
    • PROBLEM TO BE SOLVED: To provide an exhaust manifold that is divisible without the need for a special sealing member and can improve sealability in a joint.SOLUTION: A pipe wall thickness (t1) is at least 5 mm in one pipe end (11). When an engine is operated, the other pipe (2) is thermally expanded radially outward, and a thermal expansion amount of one pipe (1) is suppressed by radiation to the atmosphere. The radial size of a gap (s1) is 1/1,400-1/1,600 of the size (d) of the outside diameter in one pipe end (21) of the other pipe at room temperature to reduce the gap (s1). The ratio of the pipe wall thickness (t1) in the one pipe end (11) to a pipe wall thickness in the other pipe end (21) is 1:1.8-1:2.2 at room temperature.
    • 要解决的问题:提供一种排气歧管,其不需要特殊的密封构件即可分割,并且可以提高接头中的密封性。 解决方案:管壁厚度(t1)在一个管端(11)中至少为5mm。 当发动机工作时,另一个管道(2)径向向外热膨胀,一个管道(1)的热膨胀量被辐射到大气中被抑制。 在室温下,间隙(s1)的径向尺寸为另一管的一个管端(21)的外径尺寸(d)的1 / 1,400-1 / 1,600,以减小间隙(s1)。 在一个管端(11)中的管壁厚度(t1)与另一管端(21)中的管壁厚度的比率在室温下为1:1.8-1:2.2。 版权所有(C)2013,JPO&INPIT
    • 17. 发明专利
    • Weld structure of thin member and attachment member
    • 薄层构件和附件构件的焊接结构
    • JP2013092120A
    • 2013-05-16
    • JP2011235117
    • 2011-10-26
    • Futaba Industrial Co Ltdフタバ産業株式会社
    • MIZUKAMI NAOKIMORII HIDEYUKI
    • F01N13/18B23K9/00B23K9/02B23K9/028F01N13/00F01N99/00
    • B23K9/032F01N13/1822F01N2450/22
    • PROBLEM TO BE SOLVED: To obtain a weld structure capable of preventing melting and falling even when a thin member and a flange of an attachment member with a larger thermal capacity than that of the thin member is overlapped and arc-welded.SOLUTION: In the weld structure, the thin member 1 and the flange 6 of an attachment member 2 with the larger thermal capacity than that of the thin member 1 are overlapped and the thin member 1 is fillet-welded to the outer edge of the flange 6 by arc welding. Then, the thickness of the outer edge of the flange 6 is made thinner according to the thickness of the thin member 1. Also, the thickness T of the outer edge of the flange 6 is made 0.5-2.0 times of the thickness (t) of the thin member. Furthermore, a step 6b is formed along the outer edge of the flange 6 and a thin part 6a is provided at the outer edge end side of the flange 6 to make the thickness of the outer edge of the flange 6 thin.
    • 要解决的问题:即使当具有比薄构件的热容量大的热容量的附接构件的薄构件和凸缘重叠并电弧焊时,也可获得能够防止熔融和下落的焊接结构。

      解决方案:在焊接结构中,具有比薄构件1的热容量大的热连接构件2的薄构件1和凸缘6重叠,并且薄构件1被焊接到外边缘 的法兰6通过电弧焊接。 然后,将凸缘6的外缘的厚度根据薄构件1的厚度变薄。另外,凸缘6的外缘的厚度T为厚度(t)的0.5〜2.0倍, 的薄构件。 此外,沿凸缘6的外缘形成台阶6b,在凸缘6的外缘端侧设置有薄壁部6a,使凸缘6的外缘的厚度变薄。 版权所有(C)2013,JPO&INPIT