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    • 1. 发明授权
    • Closed compressor having means for satisfactorily lubricating
compression mechanism
    • 封闭式压缩机具有令人满意的润滑压缩机构的装置
    • US6071104A
    • 2000-06-06
    • US923422
    • 1997-09-04
    • Takamasa SakimotoShigeru Muramatsu
    • Takamasa SakimotoShigeru Muramatsu
    • F04C23/00F04C29/02F01M1/00
    • F04C23/008F04C29/023F04C2210/26
    • A closed compressor includes a closed vessel having an oil sump in which lubricating oil which is incompatible with a refrigerant is accommodated. A compression mechanism, to which a rotary shaft is connected, is accommodated in the closed vessel. An electric motor is also accommodated in the closed vessel for rotating the rotary shaft to drive the compression mechanism. An oil supply pipe is secured to a lower end of the rotary shaft to draw the lubricating oil contained in the oil sump to the compression mechanism. A generally cylindrical partition wall is formed in the oil sump so as to encircle the oil supply pipe and has a plurality of holes to allow the lubricating oil to pass therethrough. The generally cylindrical partition wall may be replaced with a partition wall that laterally partitions the oil sump into two portions. It is preferred that the plurality of holes includes at least vertically spaced first and second rows of holes with the first row being positioned above the second row. Each hole of the first row has an area greater than the holes of the second row.
    • 封闭的压缩机包括具有油槽的密闭容器,其中容纳与制冷剂不相容的润滑油。 连接有旋转轴的压缩机构容纳在密闭容器中。 电动机也容纳在密闭容器中,用于使旋转轴旋转以驱动压缩机构。 供油管被固定到旋转轴的下端,以将容纳在油底壳中的润滑油吸入压缩机构。 在油底壳中形成大致圆筒状的分隔壁,以便包围供油管,并具有多个孔,以允许润滑油通过。 大致圆柱形的分隔壁可以用分隔壁来代替,该分隔壁将油槽横向分隔成两部分。 优选地,多个孔包括至少垂直间隔开的第一和第二排孔,其中第一排位于第二排上方。 第一排的每个孔的面积大于第二排的孔。
    • 3. 发明授权
    • Self-calibrating transducer system and musical instrument equipped with the same
    • 自校准换能器系统及配备的乐器
    • US07411124B2
    • 2008-08-12
    • US11293573
    • 2005-12-02
    • Shigeru Muramatsu
    • Shigeru Muramatsu
    • G10H1/00
    • G10F1/02G01D18/006G01D18/008
    • A self-calibrating key sensor system is constituted by an optical modulator, optical position transducers, a data accumulator and a data analyzer, and the optical modulator has a gray scale section to produce a key position signal varied together with the keystroke and an absolute data section to produce a calibration signal representative of a strictly adjusted distance between transparent areas of the absolute data section; the data accumulator accumulates discrete values of the calibration signal and discrete values of the key position signal together with the sampling time, and the data analyzer determines the gradient of the key position signal on the basis of peaks of the calibration signal produced at both ends of the strictly adjusted distance so as to estimate the true distance between the rest and end positions.
    • 自校准密钥传感器系统由光调制器,光学位置传感器,数据累加器和数据分析器构成,并且光调制器具有灰度部分以产生与击键一起变化的键位置信号和绝对数据 以产生表示绝对数据部分的透明区域之间严格调整的距离的校准信号; 数据累加器累积校准信号的离散值和键位置信号的离散值以及采样时间,并且数据分析器基于在两端产生的校准信号的峰值来确定键位置信号的梯度 严格调整距离,以便估计休息和结束位置之间的真实距离。
    • 4. 发明授权
    • Key structure
    • 关键结构
    • US07394004B2
    • 2008-07-01
    • US11378479
    • 2006-03-20
    • Shigeru MuramatsuToshiro Sakai
    • Shigeru MuramatsuToshiro Sakai
    • G10C1/00
    • B29C45/16B29C45/1671B29L2031/722B29L2031/758B44F9/06G10C3/125
    • A key structure includes a top plate which is formed by laminating a half-transparent resin surface layer member on a resin bottom side member using two-color injection molding, and the top plate is secured on a wooden key base. A plurality of concave grooves and protrusions, and a plurality of protrusion and troughs are respectively formed together in straight lines in the long direction of the key structure on a rear face of the surface layer member and a top face of the rear side member. Outside light is reflected from the top ends of the protrusion and the troughs, whereby a faint and natural vertically-striped pattern, which corresponds to a concave-convex part formed by the concave grooves and the protrusions, is perceived as resembling an edge grain of ivory.
    • 关键结构包括通过使用双色注射成型将半透明树脂表面层构件层压在树脂底侧构件上而形成的顶板,并且顶板固定在木质键座上。 多个凹槽和突起以及多个突起和槽分别沿着表面层构件的后表面上的键结构的长方向的直线和后侧构件的顶面一起形成在一起。 外部的光从突起和谷的顶端反射,由凹槽和突起形成的凹凸部对应的微弱自然的垂直条状图案被认为类似于边缘颗粒 象牙。
    • 10. 发明授权
    • Hermetically sealed rotary compressor having an oil supply capillary
passage
    • 具有供油毛细管通道的密封旋转式压缩机
    • US5545021A
    • 1996-08-13
    • US359656
    • 1994-12-20
    • Hirotsugu FukuokaKeisuke MoritaHiroshi MatsunagaShigeru Muramatsu
    • Hirotsugu FukuokaKeisuke MoritaHiroshi MatsunagaShigeru Muramatsu
    • F04C18/356F04C29/00F04C29/02F04C29/04
    • F04C18/3564F04C29/0007F04C29/02F04C29/042
    • A hermetically sealed rotary compressor includes a generally cylindrical sealed vessel having an oil reservoir defined therein for accommodating a quantity of lubricating oil, a drive unit within the sealed vessel, and a compressor mechanism within the sealed vessel. The compressor mechanism includes a cylinder having a compression compartment defined therein and also having upper and lower openings, an eccentric cam provided on a crankshaft for rotation together therewith, and a ring-shaped piston mounted on the crankshaft while encircling the eccentric cam and capable of undergoing a planetary motion in contact with the eccentric cam during rotation of the eccentric cam. The cylinder has a refrigerant intake port defined therein in communication with the compression compartment. A radial vane is slidably accommodated in the cylinder for reciprocating movement in a direction radially of the cylinder and having a radial inner end held in sliding contact with an outer peripheral surface of the ring-shaped piston. An oil supply tube having first and second open ends opposite to each other is disposed with the first open end communicated with the oil reservoir and the second open end communicated with the compression compartment while a generally intermediate portion of the oil supply tube extends outside the sealed vessel.
    • 一种气密密封的旋转压缩机包括一个大致圆柱形的密封容器,其具有限定在其中的用于容纳一定数量的润滑油的储油器,密封容器内的驱动单元和密封容器内的压缩机构。 该压缩机构包括具有限定在其中的压缩室并且还具有上开口和下开口的气缸,设置在曲轴上的偏心凸轮与其一起旋转,以及安装在曲轴上的环形活塞,同时环绕偏心凸轮并且能够 在偏心凸轮旋转期间经历与偏心凸轮接触的行星运动。 气缸具有与压缩室连通的限定在其中的制冷剂吸入口。 径向叶片可滑动地容纳在气缸中,用于沿圆柱体的径向往复运动,并且具有与环形活塞的外周表面滑动接触的径向内端。 具有彼此相对的第一和第二开口端的供油管被设置成具有与储油器连通的第一开口端和与压缩室连通的第二开口端,而供油管的大致中间部分延伸到密封 船只。