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    • 33. 发明授权
    • Laser processing head, laser processing apparatus, optical system of laser processing apparatus, laser processing method, and laser focusing method
    • 激光加工头,激光加工装置,激光加工装置的光学系统,激光加工方法和激光聚焦方法
    • US09346126B2
    • 2016-05-24
    • US13982790
    • 2011-05-30
    • Masao WatanabeShuho Tsubota
    • Masao WatanabeShuho Tsubota
    • B23K26/06B23K26/073B23K26/38G02B27/40
    • B23K26/0648B23K26/0665B23K26/0734B23K26/38G02B27/40
    • A laser cutting apparatus (10) includes a laser processing head (15) that receives a laser beam emitted by a laser oscillator (12) and that uses a spherical lens for converging the laser beam so as to cause the intensity distribution of the laser beam to have a caldera-like shape, in which the intensity of the laser beam is higher in a peripheral area than in a central area, at the position of a workpiece (20). Moreover, the laser processing head (15) radiates the laser beam whose focal position is displaced from the position of the workpiece (20) to the workpiece (20). Therefore, the laser cutting apparatus (10) performs an inversion on the laser beam by using the spherical aberration of the spherical lens. Consequently, with a simple configuration, a laser beam whose inner area and outer area are inverted at the position of the workpiece (2) can be generated, and the processing direction for processing the workpiece (20) is not limited.
    • 激光切割装置(10)包括:激光加工头(15),其接收由激光振荡器(12)发射的激光束,并且使用球面透镜来会聚激光束,以便激光束的强度分布 具有在工件(20)的位置处的激光束的强度在周边区域比在中心区域更高的火山形状。 此外,激光加工头(15)将焦点从工件(20)的位置移动到工件(20)的激光束照射。 因此,激光切割装置(10)通过使用球面透镜的球面像差在激光束上进行反转。 因此,通过简单的结构,能够生成在工件(2)的位置上使内部区域和外部区域反转的激光束,并且对工件(20)的加工方向没有限制。
    • 35. 发明授权
    • Exhaust gas purification device of internal combustion engine
    • 内燃机废气净化装置
    • US09097167B2
    • 2015-08-04
    • US14362444
    • 2011-12-07
    • Hiroshi TanakaYusuke SaitoTakeshi NobukawaMasao Watanabe
    • Hiroshi TanakaYusuke SaitoTakeshi NobukawaMasao Watanabe
    • F01N3/00F01N11/00F01N9/00F02D41/12B01D53/94F02D41/02
    • F01N11/00B01D53/9445B01D53/9495B01D2255/1025B01D2255/2092F01N9/00F01N11/007F01N2430/06F01N2550/02F01N2900/1602F01N2900/1624F02D41/123F02D2041/0265F02D2200/0802F02N2200/026Y02T10/22Y02T10/47
    • The invention relates to an exhaust gas purification device of an internal combustion engine comprising a catalyst (45) having an active element and a composite oxidation which carries the active element in an exhaust passage (40), the active element transforming into the composite oxide as a solid solution when the catalyst temperature is higher than or equal to a predetermined solid solution temperature and the atmosphere of the interior of the catalyst is an oxidation atmosphere and the active element precipitating from the composite oxide when the catalyst temperature is higher than or equal to a predetermined precipitation temperature and the atmosphere of the interior of the catalyst is a reduction atmosphere. According to the invention, in case that the performance of the fuel supply stop control is inhibited when the catalyst temperature is higher than or equal to the performance inhibiting temperature, a temperature lower than a base temperature of the performance inhibiting temperature is set as the performance inhibiting temperature while the use degree of the catalyst is lower than or equal to a predetermined degree and in case that the performance of the fuel supply amount increase control is permitted when the catalyst temperature is higher than or equal to a performance permitting temperature, a temperature higher than a base temperature of the performance permitting temperature is set as the performance permitting temperature while the use degree of the catalyst is smaller than or equal to the predetermined degree.
    • 本发明涉及一种内燃机的废气净化装置,其包括具有活性元素的催化剂(45)和在排气通道(40)中承载活性元素的复合氧化物,活性元素转化为复合氧化物,如 催化剂温度高于或等于预定固溶温度时的固溶体,催化剂内部的气氛为氧化气氛,当催化剂温度高于或等于催化剂温度时,活性组分从复合氧化物析出 预定的沉淀温度和催化剂内部的气氛是还原气氛。 根据本发明,当催化剂温度高于或等于性能抑制温度时,在禁止燃料供给停止控制的性能的情况下,将低于性能抑制温度的基础温度的温度设定为性能 在催化剂的使用程度低于或等于预定程度的情况下,并且当催化剂温度高于或等于性能允许温度时允许燃料供给量增加控制的性能的情况下,抑制温度,温度 将高于性能允许温度的基础温度设定为性能允许温度,同时催化剂的使用程度小于或等于预定程度。