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    • 2. 发明专利
    • Exhaust emission control device of internal combustion engine
    • 内燃机排气控制装置
    • JP2011127561A
    • 2011-06-30
    • JP2009288895
    • 2009-12-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • MINAMINO KEIJIYAHIRO KAZUMAYOKOTANI NAOYUKIIGARASHI OSAMUSATO TAKESHISUMI NORIHIKOKATO TAKEYUKIYAMADA KAZUTOMO
    • F01N3/02B01D46/42F01N3/24
    • PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine, which removes fuel remaining in an exhaust system with filter regeneration operation and eliminates adverse effects by the remaining fuel. SOLUTION: For the exhaust emission control device performing the regeneration operation of a particulate filter by post injection and the throttling operation of an exhaust throttle valve, after termination of the regeneration operation, the post injection is stopped and the throttling operation of the throttle valve is continued. Thereby, the remaining fuel flowing in the exhaust system, in particular between a drive shaft 55b and a bush 59 in a variable nozzle vane mechanism of a variable nozzle type turbocharger, can be discharged to the atmosphere by increasing the pressure in the exhaust system and operation of the variable nozzle vane mechanism can be secured satisfactorily. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种内燃机的废气排放控制装置,其利用过滤器再生操作去除排放系统中残留的燃料,并消除剩余燃料的不利影响。 解决方案:对于通过后喷射执行微粒过滤器的再生操作和排气节流阀的节流操作的废气排放控制装置,在再生操作结束后,停止后喷射,并且, 节流阀继续。 由此,在排气系统中流动的剩余燃料,特别是在可变喷嘴式涡轮增压器的可变喷嘴叶片机构中的驱动轴55b和衬套59之间的剩余燃料可以通过增加排气系统中的压力而排放到大气中, 可以令人满意地确保可变喷嘴叶片机构的操作。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Piston unit for internal combustion engine and ring groove structure for piston
    • 活塞内燃机活塞组和活塞环结构
    • JP2007297975A
    • 2007-11-15
    • JP2006126514
    • 2006-04-28
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHINAGA KIYOSHIMINAMINO KEIJI
    • F02F3/00F16J9/00
    • PROBLEM TO BE SOLVED: To provide a piston unit for an internal combustion engine and a ring groove structure for a piston capable of reducing NOx concentration in blow-by gas without making air-tightness by a piston ring too high and without increasing the quantity of fresh air introduced into a crank case.
      SOLUTION: A top ring groove 21 is designed to satisfy relation of 3≤Vba/Vb1≤5 between volume Vba of a back clearance C1 formed between the top ring groove 21 formed on the piston 2 and a top ring 3 fitted in the same, and blow-by gas volume Vb1 generated per one cycle of one cylinder. Consequently, NOx concentration of blow-by gas can be greatly reduced without harmful effect on assemblability of inserting the piston unit 1 into a cylinder 6.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种用于内燃机的活塞单元和用于活塞的活塞单元,其能够降低窜气中的NOx浓度,而不会使活塞环气密性过高而不增加 引入曲轴箱的新鲜空气的量。 解决方案:顶环槽21设计成满足在形成在活塞2上的顶环槽21和安装在活塞2上的顶环3之间形成的后间隙C1的体积Vba之间的3≤Vba/Vb1≤5的关系 相同的,和一个气缸的每一个循环产生的窜气体积Vb1。 因此,可以大大降低窜气的NOx浓度,而不会对将活塞单元1插入气缸6中的组装性产生有害影响。(C)2008,JPO&INPIT
    • 4. 发明专利
    • Secondary air supply device for internal combustion engine
    • 用于内燃机的二次空气供应装置
    • JP2005090396A
    • 2005-04-07
    • JP2003326417
    • 2003-09-18
    • Toyota Motor Corpトヨタ自動車株式会社
    • MINAMINO KEIJIYAMADA KATSUMIFUJINAKA JIYURITERADA MITSURU
    • F02F1/42F01N3/32
    • PROBLEM TO BE SOLVED: To provide a secondary air supply device for an internal combustion engine capable of satisfactorily suppressing occurrence of oil coking in a cylinder head while maintaining recombustion property of exhaust gas.
      SOLUTION: This secondary air supply device 101 is provided with a secondary air introduction passage 102 for introducing secondary air into an exhaust port 17 in the internal combustion engine 11 and a secondary air supply passage 103 for supplying secondary air into the introduction passage 102. The secondary air introduction passage 102 among the passages is formed in the cylinder head 13 to introduce secondary air into the exhaust port 17 directly. On the other hand, the secondary air supply passage 103 is a delivery (distribution) passage for distributing and supplying secondary air into a plurality of secondary air introduction passages 102 and is provided on a side wall of the cylinder head 13. A valve 106 for preventing flowing-in of exhaust gas for shutting off flowing-in of exhaust gas into the secondary air supply passage 103 is provided as the secondary air supply device 101.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:提供一种内燃机的二次空气供给装置,其能够令人满意地抑制气缸盖内的油焦化的发生,同时保持废气的再结合特性。 解决方案:该二次空气供给装置101设置有用于将二次空气引入内燃机11的排气口17的二次空气引入通道102和用于将二次空气供给到引入通道中的二次空气供给通道 通道中的二次空气引入通道102形成在气缸盖13中,以将二次空气直接引入排气口17。 另一方面,二次空气供给通道103是用于将二次空气分配并供给到多个二次空气引入通道102中的输送(分配)通道,并且设置在气缸盖13的侧壁上。一个用于 作为二次空气供给装置101,设置防止排气流入二次空气供给路径103的废气流入。(C)2005,JPO&NCIPI
    • 6. 发明专利
    • STRUCTURE OF DRILL PATH
    • JPH10288080A
    • 1998-10-27
    • JP10117797
    • 1997-04-18
    • TOYOTA MOTOR CORP
    • MINAMINO KEIJI
    • F02F1/10F01P3/02
    • PROBLEM TO BE SOLVED: To improve the cooling of a part between cylinder bores of a cylinder block by forming each diameter of drill paths, which cross each other between the bores, different from each other. SOLUTION: Drill paths 1, 2, which are formed in a part 5 between cylinder bores 3 of a cylinder block 4 and which cross each other, are provided so as to lead a part of the cooling water, which passes a water jacket 6 inside of the cylinder block 4, to a water jacket inside of a cylinder head. Angle θ formed by these crossing drill paths 1, 2 and opened to a top surface of the cylinder block 4 is set at 90 degree or more so as to strongly cool the periphery of a combustion engine. Diameter ratio of diameters d1 , d2 of the two drill paths 1, 2 is desirably set at about 1:0.55, and the drill path 1 having a larger diameter d1 is worked after working the drill path 2 having a smaller diameter d2 so as to prolong the lifetime of a drill.
    • 7. 发明专利
    • Supporting structure for turbocharger, and supporting member of turbocharger
    • 支持涡轮增压器的结构和支持涡轮增压器的成员
    • JP2011157823A
    • 2011-08-18
    • JP2010017950
    • 2010-01-29
    • Toyota Motor Corpトヨタ自動車株式会社
    • MINAMINO KEIJISAKAI NOBUKAZU
    • F02B37/00
    • Y02T10/144
    • PROBLEM TO BE SOLVED: To provide a supporting structure for a turbocharger, reducing noise caused by whirl vibration.
      SOLUTION: In this structure for supporting the turbocharger 20 to an engine 10 by the use of a stay 40, one end of the stay 40 is fixed to an exhaust pipe 30 connected to the downstream side of a turbine housing 24, and the other end of the stay 40 is fixed to the engine 10. The stay 40 is so formed that rigidity in the axial direction of the turbocharger 20 is higher than rigidity in a direction perpendicular to the axial direction so as to suppress vibration in the direction perpendicular to the axial direction of the turbocharger 20 at the upstream end of the exhaust pipe 30.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供涡轮增压器的支撑结构,减少由旋转振动引起的噪音。 解决方案:在通过使用支柱40将涡轮增压器20支撑到发动机10的结构中,支柱40的一端固定到连接到涡轮机壳体24的下游侧的排气管30,并且 支柱40的另一端固定在发动机10上。支柱40形成为使涡轮增压器20的轴向刚性高于与轴向垂直的方向上的刚性,以抑制方向上的振动 在排气管30的上游端垂直于涡轮增压器20的轴向方向。(C)2011,JPO&INPIT
    • 9. 发明专利
    • CAP FASTENING STRUCTURE OF CONNECTING ROD
    • JPH11182526A
    • 1999-07-06
    • JP35255397
    • 1997-12-22
    • TOYOTA MOTOR CORP
    • MINAMINO KEIJI
    • F16C9/04
    • PROBLEM TO BE SOLVED: To reduce weight of a connecting rod, and to easily fasten a nut by arranging the inverse screw head part and the press-in part in a bolt, and pressing/screwing them in the connecting rod. SOLUTION: A bolt 3 is pressed/screwed in a bolt hole 5 of a large end part 1a and a cap 2 of a connecting rod 1 from the opposite side of the cap 2. A load applied from the head part inverse screw part 3a reduces since the press-in part 3c is arranged, and the cladding part is eliminated since there is no need to arrange the strength increasing cladding part in the large end shoulder part, so that weight of the connecting rod large end part 1a is reduced by that extent. A plastic area of the bolt 3 is easily fastened since stress concentration of a connecting rod step surface brought into pressure contact with the female screw part 1b and a neck under surface 3e to threadedly engage with the head part inverse screw part 3a reduces by the extent of receiving a part of a bolt shaft directional load by the press-in part 3c.
    • 10. 发明专利
    • Crank shaft
    • 起重机
    • JP2005042837A
    • 2005-02-17
    • JP2003278382
    • 2003-07-23
    • Toyota Motor Corpトヨタ自動車株式会社
    • MINAMINO KEIJI
    • F16C3/08
    • F16C3/08F16C3/20F16C3/22
    • PROBLEM TO BE SOLVED: To provide a crank shaft capable of suppressing degradation of the torsional rigidity below the permissible level attributable to the depth of a recessed part provided in an arm while enhancing the rotational balance by reducing the weight of the arm. SOLUTION: In an arm 4 to connect a crank journal 2 to a crank pin 3, a recessed part 8 is formed in a part corresponding to an overlap of the crank journal 2 with the crank pin 3. The depth of the recessed part 8 is set so that the position of a bottom surface 8a is located outside the tangential line of the outside diameter of the crank journal 2 with the outside diameter of the crank pin 3, and the width in the rotational direction of the arm 4 is larger than the outside diameter of the crank journal 2. When the depth of the recessed part 8 is set, the width is larger than the value when the degradation ratio of the torsional rigidity of the crank shaft 1 is abruptly increased as the width is reduced. When the degradation ratio of the torsional rigidity is abruptly increased as the width is reduced, it is determined that the torsional rigidity of the crank shaft 1 is below the permissible level. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种曲柄轴,其能够将扭转刚度的劣化降低到低于设置在臂中的凹部的深度的允许水平,同时通过减小臂的重量来增强旋转平衡。 解决方案:在将曲轴轴颈2连接到曲柄销3的臂4中,凹部8形成在与曲柄轴颈2与曲柄销3重叠的部分中。凹部8的深度 第8部分被设定为使得底面8a的位置与曲柄销3的外径位于曲柄轴颈2的外径的切线外侧,并且臂4的旋转方向上的宽度为 大于曲柄轴颈2的外径。当设定凹部8的深度时,宽度大于当曲轴1的扭转刚度的降低率随着宽度减小而突然增加时的值 。 当扭转刚度的降低率随着宽度的减小而急剧增加时,确定曲柄轴1的扭转刚度低于容许水平。 版权所有(C)2005,JPO&NCIPI