会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Cross-fin tube type heat exchanger
    • 横管式换热器
    • US4300629A
    • 1981-11-17
    • US50455
    • 1979-06-20
    • Toshio HatadaTakao SenshuAkira AraiFumio HaradaAtsushi MatsuzakiHajime FutawatariYutaka ImaizumiSumiyoshi Takeda
    • Toshio HatadaTakao SenshuAkira AraiFumio HaradaAtsushi MatsuzakiHajime FutawatariYutaka ImaizumiSumiyoshi Takeda
    • F28F1/32F28F1/38
    • F28F1/325F28F2250/02Y10S165/503
    • A cross-fin tube type heat exchanger having a large number of parallel fins and a plurality of heat transfer tubes extended through and fixed to the fins, so that heat may be exchanged between a first heat exchanging medium flowing through the heat transfer tubes and a second heat exchanging medium flowing along the surfaces of the fin, across the walls of the heat transfer tubes and through the fins. In the portions of each fin between adjacent heat transfer tubes of the same row, formed are a number of slits perpendicular to the direction of flow of the second heat exchanging medium. Each elongated section defined between each pair of adjacent slits is bent along its breadthwise bisector line and is raised in the form of a bridge to constitute an upwardly convexed louver element. The upwardly convexed louver element may have a cross section with an obtuse apex angle, or may have an arcuate cross section. The successive louver elements are arrayed in the direction of flow of the second heat exchanging medium in a manner of corrugation, or alternately staggered in the heightwise direction so that the edges of adjacent louver elements may be staggered in the heightwise direction. The fins having louver elements thus constructed cause a turbulency of the flow of the second heat exchanging medium to effectively prevent boundary layers of the latter from growing, thereby to ensure a higher efficiency of the heat exchange. Also increased stiffness or rigidity of the fin is obtained thanks to the provision of upwardly convexed louver elements.
    • 一种具有大量平行翅片和多个传热管的交叉翅片管型热交换器,其延伸并固定在翅片上,使得热量可以在流过传热管的第一热交换介质和 第二热交换介质沿着翅片的表面流动,穿过传热管的壁并且通过翅片。 在相邻行的相邻传热管之间的每个翅片的部分形成有垂直于第二热交换介质的流动方向的多个狭缝。 限定在每对相邻狭缝之间的每个细长部分沿着其宽度方向的平分线弯曲并且以桥的形式被升高以构成向上凸起的百叶窗元件。 向上凸起的百叶窗元件可以具有钝角顶角的横截面,或者可以具有弓形横截面。 连续的百叶窗元件以波纹的方式在第二热交换介质的流动方向上排列,或者在高度方向上交错排列,使得相邻百叶窗元件的边缘可能在高度方向上交错。 具有如此构造的百叶窗元件的翅片导致第二热交换介质的流动的湍流,以有效地防止后者的边界层生长,从而确保更高的热交换效率。 由于提供了向上凸起的百叶窗元件,还获得了翅片的增加的刚度或刚度。
    • 5. 发明授权
    • Speaker apparatus
    • 扬声器装置
    • US08430200B2
    • 2013-04-30
    • US13216527
    • 2011-08-24
    • Akira Arai
    • Akira Arai
    • H04R1/28
    • H04R1/2826
    • A speaker apparatus according to the present invention includes a phase inversion-type enclosure in which a speaker unit and a bass reflex port are installed, the bass reflex port having a tubular body whose hollow cross-sectional area gradually becomes smaller from one opening side toward an inside of the bass reflex port in an axial direction of the bass reflex port, and a length in one direction of the hollow cross section of the tubular body not changing and constant along the axial direction.
    • 根据本发明的扬声器装置包括其中安装有扬声器单元和低音反射端口的相位反转型外壳,低音反射端口具有管状体,其中空横截面积从一个开口侧逐渐变小 在低音反射口的轴向上的低音反射端口的内部,并且管状体的空心截面的一个方向上的长度沿轴向不变化且恒定。
    • 8. 发明授权
    • Magnetic material manufacturing method, ribbon-shaped magnetic materials, powdered magnetic materials and bonded magnets
    • 磁性材料制造方法,带状磁性材料,粉末状磁性材料和粘结磁体
    • US06830633B2
    • 2004-12-14
    • US09871592
    • 2001-05-30
    • Akira AraiHiroshi Kato
    • Akira AraiHiroshi Kato
    • H01F1053
    • B82Y25/00B22D11/0611B22D11/0651B22F1/0044B22F9/08B22F2009/048B22F2009/0888B22F2998/00B22F2998/10C22C1/0441H01F1/0571H01F1/0578B22F9/10B22F9/04B22F2201/10
    • A magnetic material manufacturing method, a ribbon-shaped magnetic material manufactured by the method, a powdered magnetic material formed from the ribbon-shaped magnetic material and a bonded magnet manufactured using the powdered magnet material are disclosed. The method and the magnetic materials can provide magnets having excellent magnetic properties and reliability. A melt spinning apparatus 1 is provided with a tube 2 having a nozzle 3 at the bottom thereof, a coil 4 for heating the tube and a cooling roll 5 having a circumferential surface 53 on which dimple correcting means is provided. A melt spun ribbon 8 is formed by injecting the molten alloy 6 from the nozzle 3 so as to be collided with the circumferential surface 53 of the cooling roll 5 in an inert gas atmosphere (ambient gas) such as helium gas, so that the molten alloy 6 is cooled and then solidified. In this process, dimples to be produced on a roll contact surface of the melt spun ribbon are divided by the dimple correcting means, thereby preventing formation of huge dimples.
    • 公开了一种磁性材料制造方法,通过该方法制造的带状磁性材料,由带状磁性材料形成的粉末状磁性材料和使用该粉末状磁体材料制造的粘结磁体。 该方法和磁性材料可以提供具有优异磁性和可靠性的磁体。 熔融纺丝装置1在其底部设置有具有喷嘴3的管2,用于加热管的线圈4和具有设置有凹坑校正装置的圆周表面53的冷却辊5。 通过从喷嘴3喷射熔融合金6以在诸如氦气的惰性气体气氛(环境气体)中与冷却辊5的周面53碰撞来形成急冷薄带8,使得熔融 将合金6冷却然后固化。 在该方法中,在急冷薄带的辊接触表面上产生的凹坑被凹坑校正装置分开,从而防止形成巨大的凹坑。
    • 10. 发明授权
    • Magnet powders and isotropic rare-earth bonded magnets
    • 磁粉和各向同性稀土粘结磁铁
    • US06503415B1
    • 2003-01-07
    • US09472140
    • 1999-12-23
    • Akira Arai
    • Akira Arai
    • C04B3504
    • B82Y25/00B22F2009/048H01F1/0579Y10S977/775Y10S977/777Y10S977/838
    • Disclosed herein is a magnet powder which can provide a magnet having a high magnetic flux density and excellent magnetizability and reliability. The magnet powder is composed of an alloy composition represented by Rx(Fe1−yCOy)100−x−z−wBzAlw (where R is at least one kind of rare-earth element, x is 8.1-9.4 at %, y is 0-0.30, z is 4.6-6.8 at %, and w is 0.02-0.8 at %), and it has a structure in which a soft magnetic phase and a hard magnetic phase exist adjacent with each other. The magnet powder has characteristics in which, when an isotropic bonded magnet is molded by mixing the magnet powder with a binding resin, the magnetic flux density (B) of the bonded magnet, in the region of B higher than the straight line for Pc (permeance coefficient)=2.0 in the second quadrant of the B-H diagram representing the magnetic characteristics at room temperature, is found always on the upper side of the straight line representing Equation (I) below, and the intrinsic coercive force (iHc) of the magnet is in the range of 5.1-9.0 kOe: B=1.25×&rgr;+1.25×H  (I) where B is the magnetic flux density, &rgr; is the density of the bonded magnet, and H is the magnetic field.
    • 这里公开了一种磁体粉末,其可以提供具有高磁通密度和优异的磁化性和可靠性的磁体。 磁铁粉末由Rx(Fe1-yCOy)100-xz-wBzAlw(其中R是至少一种稀土元素,x为8.1-9.4at%,y为0-0.30, z为4.6〜6.8原子%,w为0.02〜0.8原子%),具有软磁相和硬磁相相邻的结构。 磁铁粉末的特征在于,当通过将磁粉与粘合树脂混合来成型各向同性粘结磁体时,粘结磁体的磁通密度(B)在高于Pc的直线B的区域 渗透系数)= 2.0,表示室温下的磁特性的BH图的第二象限总是位于表示下面式(I)的直线的上侧,磁体的固有矫顽力(iHc) 在5.1-9.0kOe的范围内:其中B是磁通密度,rho是粘结磁体的密度,H是磁场。