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    • 1. 发明授权
    • Data transmission system using an optical fiber loop
    • 数据传输系统采用光纤环路
    • US5363367A
    • 1994-11-08
    • US937397
    • 1992-08-31
    • Isao KobayashiHirotaka Kumata
    • Isao KobayashiHirotaka Kumata
    • H04L12/427H04L1/16H04J3/16
    • H04L12/427
    • A data transmission system comprising a plurality of data processing units connected to each other by optical fiber. Each data processing unit comprises optical/electrical converter means for converting an optical signal from the preceding data processing unit through the optical fiber to an electrical signal, electrical/optical converter means for converting an electrical signal to be sent to the succeeding data processing unit to an optical signal, a data receiving unit for receiving the converted electrical signal, means for determining whether or not the received signal was sent from the local data processing means, and gate means connected between the optical/electrical converter means and the electrical/optical converter means, the gate means being closed when the local data processing means performs data transmission and opened for alternative data receiving/passing.
    • 一种数据传输系统,包括通过光纤相互连接的多个数据处理单元。 每个数据处理单元包括用于将来自前一数据处理单元的光信号通过光纤转换为电信号的光/电转换器装置,用于将要发送给后续数据处理单元的电信号转换为后续数据处理单元的电/光转换器装置, 光信号,用于接收转换的电信号的数据接收单元,用于确定接收信号是否从本地数据处理装置发送的装置,以及连接在光/电转换器装置和电/光转换器之间的门装置 意味着,当本地数据处理装置执行数据传输并打开用于替代数据接收/传递时,门装置被关闭。
    • 2. 发明授权
    • Regenerative fuel pump having means for removing fuel vapor
    • 再生燃料泵具有去除燃料蒸气的装置
    • US4793766A
    • 1988-12-27
    • US163626
    • 1988-03-03
    • Hirotaka Kumata
    • Hirotaka Kumata
    • F02M37/04F02M37/20F04D5/00F04D9/00F04D13/06
    • F02M37/20F02M37/048F04D5/002F04D9/003F05D2250/51
    • A regenerative fuel pump, comprising: a disc-shaped pump rotor having a plurality of vanes along its periphery; a pump housing accommodating the pump rotor; a fluid inlet port provided in the pump housing along a longitudinal direction; an arcuate fuel passage extending in the pump housing from the inlet port along the periphery of the pump rotor; a fluid outlet port communicating with a terminal end of the arcuate fuel passage; and a slot extending from the inlet port a certain distance into the arcuate fuel passage along an inner circumferential region thereof; the slot extending longitudinally from the arcuate fuel passage to pump exterior through a substantially straight path and circumferentially through a tortuous path. Preferably, the slot is defined by a separate member which is fitted into a recess provided in the pump housing. Thus, the vapor contained in the fuel is separated from the liquid part of the fuel in the longitudinal direction encountering very little resistance while the effective length of the arcuate fuel passage is not reduced because of the tortuous path along the circumferential direction and the vapor is removed from the slot before it is substantially compressed with the result that the vapor is effectively removed from the fuel without substantially impairing the pump efficiency.
    • 一种再生式燃料泵,包括:圆盘形的泵转子,其周边具有多个叶片; 容纳所述泵转子的泵壳体; 流体入口,其沿着纵向方向设置在所述泵壳体中; 沿所述泵转子的周边从所述入口端口在所述泵壳体中延伸的弧形燃料通道; 与所述弓形燃料通道的末端连通的流体出口; 以及从入口端口沿其内周区域延伸一定距离进入弓形燃料通道的槽口; 所述狭槽从所述弧形燃料通道纵向延伸以通过基本上直的路径泵送到外部并沿周向穿过弯曲的路径。 优选地,狭槽由装配到设置在泵壳体中的凹部中的单独构件限定。 因此,包含在燃料中的蒸汽在长度方向上与燃料的液体部分分离,遇到非常小的阻力,而弓形燃料通道的有效长度由于沿圆周方向的曲折路径而不减少,蒸气是 在其基本上被压缩之前从槽中取出,结果是有效地从燃料中除去蒸汽,而基本上不会损害泵的效率。
    • 4. 发明授权
    • Method for reducing wave resistance in airplane
    • 减少飞机阻力的方法
    • US6102328A
    • 2000-08-15
    • US263781
    • 1999-03-05
    • Hirotaka KumataKiyoshi KatahiraShuichi WakitaToshihiro Nishikawa
    • Hirotaka KumataKiyoshi KatahiraShuichi WakitaToshihiro Nishikawa
    • B64C23/04B64D27/02B64D27/18B64D29/02B64C1/38
    • B64D29/02B64D27/18Y02T50/44
    • A method to reduce the wave resistance of an airplane by disposing a fluid element such as an engine nacelle at a predetermined position on an upper surface of a main wing, positively superposing the air flow generated by the fluid element onto the air flow on the upper surface of the main wing, thereby establishing a gentle profile of pressure on the upper surface of the main wing, and retarding the generation of a shock wave. If the engine nacelle is disposed on the upper surface of the main wing, and the longitudinal position of the front end of the engine nacelle is set in a range of 63% to 100% from the front end of a wing chord of the main wing (see b and i in FIG. 9), a shock wave is generated on the upper surface of the main wing in the range of a transonic speed to inhibit an increase in wave resistance. Thus, the cruising speed can be increased, while avoiding an increase in amount of fuel consumed. If the front end of the engine nacelle is ahead of the position corresponding to 63% of the wing chord (see e and f in FIG. 9), a shock wave inhibiting effect is not exhibited, and the wave resistance is increased.
    • 一种通过在主翼的上表面上的预定位置处设置诸如发动机舱的流体元件来将飞行器的波阻力积极地叠加在上部空气流上的方法 主翼的表面,从而在主翼的上表面上形成温和的压力轮廓,并且阻止产生冲击波。 如果发动机舱设置在主翼的上表面上,并且发动机舱的前端的纵向位置从主翼的翼弦的前端设定在63%至100%的范围内 (参见图9中的b和i),在跨音速的范围内在主翼的上表面产生冲击波,以抑制波阻的增加。 因此,可以提高巡航速度,同时避免燃料消耗量的增加。 如果发动机舱的前端在对应于翼弦的63%的位置的前方(参见图9中的e和f),则不会发挥冲击波抑制效果,并且波阻增加。