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1. 发明公开

EP3085920A4 STRUCTURE AND METHOD FOR BONDING NOZZLE VANE AND LEVER, AND VARIABLE-CAPACITY TURBOCHARGER 审中-公开
标题翻译：结构与方法粘结叶片和连杆和涡轮增压可变容量
公开(公告)号：EP3085920A4
公开(公告)日：2017-01-04
申请号：EP13899660
申请日：2013-12-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： ARAI TAKASHI , OTSUBO HITOMI
IPC分类号： F02B39/00 , B23K31/00 , B23K101/00 , B23K103/18 , F01D17/16 , F02B37/24 , F02C6/12
CPC分类号： F02B37/24 , B23K15/0053 , B23K15/0093 , B23K26/28 , B23K26/323 , B23K31/003 , B23K2201/001 , B23K2203/05 , B23K2203/18 , B23K2203/26 , F01D5/04 , F01D9/02 , F01D17/16 , F01D17/165 , F02B33/40 , F02B39/00 , F02C6/12 , F05D2220/40 , F05D2230/232 , F05D2300/177 , Y02T10/144
摘要： An object is to provide a structure and a method of joining a nozzle vane and a lever, and a variable geometry turbocharger, capable of reducing breakage of a welded part between a shaft portion of the nozzle vane and the lever during usage of the same by reducing generation of a hot crack in weld metal at the welded part. A joint structure includes: a nozzle vane 2 disposed in an exhaust passage for guiding exhaust gas to a turbine wheel 34 of a variable geometry turbocharger 500, and including a shaft portion 2a; and a lever 1 including a fitting surface 42a fitted with a peripheral surface 72 on one end side of the shaft portion, for transmitting torque to the shaft portion to adjust a vane angle of the nozzle vane. Weld metal 50 at a welded part 40 between the lever and the nozzle vane is formed so that a center position 64 of the weld metal is disposed inside a position 17 of the fitting surface with respect to a radial direction of the shaft portion.

2. 发明公开

EP2960463A4 TURBINE ROTOR AND TURBOCHARGER INCORPORATING SUCH TURBINE ROTOR 有权
标题翻译： TURBINENROTOR UND TURBOLADER MIT SOLCH EINEM TURBINENROTOR
公开(公告)号：EP2960463A4
公开(公告)日：2016-04-13
申请号：EP13875417
申请日：2013-02-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： OTSUBO HITOMI , ARAI TAKASHI , NAKAGAWA HIROSHI , YAMAGUCHI HIDEKI , YOSHIDA MASAKAZU
IPC分类号： F02B39/00 , F01D5/02 , F01D5/04 , F02B39/16
CPC分类号： F01D5/027 , F01D5/04 , F01D5/048 , F01D5/28 , F05D2220/40 , F05D2300/174
摘要： A turbine rotor comprising: a turbine wheel 5 obtainable by precision casting of titanium aluminide, including a hub 50 extending along a rotational center of the turbine wheel, and a plurality of impellers 40 arranged along a circumferential direction around an outer circumference of the hub, and having a web-like scallop 30 formed by making a cutout between adjacent impellers among the plurality of the impellers; and a rotor shaft 7 extending along the rotational center line C-C of the turbine wheel on a back side of the hub of the turbine wheel; wherein the turbine wheel has a balance cut portion 11 arranged along the circumferential direction of the rotational turbine wheel on the back side of the hub of the turbine wheel, wherein an area of the balance correcting part arranged in the circumferential direction is placed so that a balance cut minimum diameter BCmin is larger than a maximum diameter of the rotor shaft on the wheel mounting side, and that a balance cut maximum diameter BCmax is smaller than a scallop diameter S of the turbine wheel, and that a thickness t from the back side of the turbine wheel to a surface of the hub satisfies 1.75t‰¥w, where w is a width in a radial direction of the area arranged in the circumferential direction (i.e. balance cut).
摘要翻译：一种涡轮转子，其特征在于，包括：通过精密铸造钛酸铝而获得的涡轮机轮5，其包括沿涡轮机叶轮的旋转中心延伸的轮毂50以及围绕轮毂的外周沿圆周方向布置的多个叶轮40，并且具有通过在多个叶轮之间的相邻叶轮之间形成切口而形成的网状扇贝30; 以及转子轴7，其沿着涡轮机叶轮的轮毂的后侧沿着涡轮机叶轮的旋转中心线C-C延伸; 其特征在于，所述涡轮机叶轮具有在所述涡轮机叶轮的所述轮毂的背侧沿着所述旋转涡轮机叶轮的圆周方向配置的平衡切割部11，其中，所述平衡校正部的沿圆周方向配置的区域被配置为平衡切割最小直径BCmin大于轮安装侧的转子轴的最大直径，平衡切割最大直径BCmax小于涡轮机叶轮的扇形直径S，并且来自后侧的厚度t 涡轮机轮毂到轮毂表面的距离满足1.75t‰，其中w是沿圆周方向排列的区域的径向宽度（即平衡切削）。

3. 发明公开

EP2821617A4 TURBINE ROTOR 审中-公开
标题翻译： TURBINENROTOR
公开(公告)号：EP2821617A4
公开(公告)日：2015-12-09
申请号：EP13754668
申请日：2013-02-26
申请人： MITSUBISHI HEAVY IND LTD
发明人： OTSUBO HITOMI , ARAI TAKASHI , EBISU MOTOKI
IPC分类号： C21D9/50 , B23K15/04 , B23K26/00 , B23P15/00 , C21D1/09 , C21D1/30 , C21D9/28 , F01D5/02
CPC分类号： F01D5/025 , B23K15/0006 , B23K15/0026 , B23K15/0053 , B23K26/702 , B23K2201/001 , C21D1/09 , C21D1/30 , C21D9/0068 , C21D9/50 , F01D5/063 , F05D2220/40 , F05D2230/234 , F05D2230/40 , F05D2240/60
摘要： To provide a turbine rotor which enables mass production with a low-cost apparatus and which capable of suppressing leaning of the rotor shaft after welding to improve the yield, while a turbine blade rotor 12 and the rotor shaft 14 are fit to each other with concave and convex portions 12a and 14a and are permitted to be rotated, laser beam L from a laser beam generating device 30 is applied to a joint face 16 along the circumferential direction to weld the welding portion. Then, laser beam L is polarized to temper a region X on the rotor shaft side containing the welding portion with laser beam L. In contrast to residual stress R 1 having a local angular distribution generated during the welding, residual stress R 2 is permitted to be generated over the entire circumference by tempering. Leaning of the rotor shaft 14 after cooling is thereby be suppressed.

4. 发明专利

JP2014172420A Electric steering device 有权
标题翻译：电动转向装置
公开(公告)号：JP2014172420A
公开(公告)日：2014-09-22
申请号：JP2013043923
申请日：2013-03-06
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： ISHIZAKI TATSUYA , YAMADA TAKAYOSHI , OTSUBO HITOMI , MIYAZAKI HIROSHI
IPC分类号： B63H25/26 , G05G5/03
摘要： PROBLEM TO BE SOLVED: To provide an electric steering device capable of keeping a steering angle without driving a motor, allowing absorption of an excessive torque.SOLUTION: An electric steering device which performs steering by rotating a steering rod 15 to which a steering plate 14 is attached using a driving force of a motor includes a steering angle holding/excessive torque absorbing mechanism 20 equipped with a magnetic fluid sealing part 21, with the steering rod 15 penetrating it, forming a sealed space 21a for a magnetic fluid to be sealed up in the area formed with the steering rod outer peripheral surface 15a, a plate-like rotator 22 attached to protrude into the sealed space 21a, outward from the steering rod 15 in radial direction, within the magnetic fluid sealing part 21, a separation plate 23 protruded toward the steering rod outer peripheral surface 15a from an inner wall surface 21a of the magnetic fluid sealing pat 21 so as to bisect a circumference of the sealed space 21a, a magnetic fluid circulation flow path 24 of a closed circuit communicating with the sealed space 21a with the separation plate 23 in between, and a magnetic fluid flow control part 30 which is provided to the magnetic fluid circulation flow path 24 for controlling flow path resistance.
摘要翻译：要解决的问题：提供一种能够在不驱动电动机的情况下保持转向角的电动转向装置，从而允许吸收过大的转矩。解决方案：一种电动转向装置，其通过转动转向杆15来执行转向，转向杆15转向转向板14 使用电动机的驱动力来安装，其具有：转向杆保持/过剩扭矩吸收机构20，其配备有磁性流体密封部21，转向杆15穿过该转向角保持/过度扭矩吸收机构20，形成用于密封的磁性流体的密封空间21a 在形成有转向杆外周面15a的区域中，在磁性流体密封部21内，从转向杆15向径向外侧突出到密闭空间21a内的板状旋转体22，分离板23 从磁性流体密封pat 21的内壁面21a朝向转向杆外周面15a突出，以将密封温泉的圆周平分 ce 21a，与密封空间21a与分隔板23连通的闭合回路的磁性流体循环流路24和设置在磁性流体循环流路24上用于控制流量的磁性流体流量控制部30 路径阻力。

5. 发明专利

JP2013177850A Turbine rotor 有权
标题翻译：涡轮转子
公开(公告)号：JP2013177850A
公开(公告)日：2013-09-09
申请号：JP2012041957
申请日：2012-02-28
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： OTSUBO HITOMI , ARAI TAKASHI , EBISU MIKI
IPC分类号： F02B39/00 , B23K15/00 , B23K15/04 , B23K26/00 , B23K26/20 , B23K31/00 , C21D9/00 , C21D9/50
CPC分类号： F01D5/025 , B23K15/0006 , B23K15/0026 , B23K15/0053 , B23K26/702 , B23K2201/001 , C21D1/09 , C21D1/30 , C21D9/0068 , C21D9/50 , F01D5/063 , F05D2220/40 , F05D2230/234 , F05D2230/40 , F05D2240/60
摘要： PROBLEM TO BE SOLVED: To achieve a turbine rotor to be mass-produced with a yield improved by restraining inclination of a rotor shaft after welding with an inexpensive device.SOLUTION: A bonding surface 16 between a turbine impeller 12 and a rotor shaft 14 is welded by: rotating the turbine impeller 12 and the rotor shaft 14 while fitting them to each other at convex and concave parts 12a, 14a; and emitting a laser beam L in a circumferential direction from a laser beam generating device 30 onto the bonding surface 16. Then, with the laser beam L polarized, a tempering process is applied to a rotor shaft side area X including the welded part by the laser beam L. Relative to a residual stress Rof the localized angle distribution created during the welding, a residual stress Ris created throughout the entire periphery by tempering. Thereby, inclination of the rotor shaft 14 after cooling down is restrained.
摘要翻译：要解决的问题：通过以廉价的装置焊接后，通过抑制转子轴的倾斜度来实现通过提高产量而实现大量生产的涡轮转子。解决方案：涡轮叶轮12和转子轴14之间的接合表面16是通过以下方式焊接：使涡轮机叶轮12和转子轴14旋转，同时在凸部12a和凹部14a处彼此嵌合; 并且将激光束L从激光束发生装置30发射到接合面16上。然后，利用激光L极化，对包括焊接部的转子轴侧区域X施加回火处理激光束L.相对于残余应力Rof在焊接期间产生的局部角度分布，通过回火在整个周边产生残余应力Ris。由此，能够抑制冷却后的转子轴14的倾斜。

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