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    • 82. 发明授权
    • Scroll type compressor having a thrust bearing for the drive shaft
    • 涡旋式压缩机具有用于驱动轴的止推轴承
    • US5503539A
    • 1996-04-02
    • US260990
    • 1994-06-16
    • Nobuyuki NakajimaMasakuni IshikawaSusumu Saito
    • Nobuyuki NakajimaMasakuni IshikawaSusumu Saito
    • F04C18/02F04C23/00F04C29/00F04C29/02F04C29/12F04C18/04
    • F04C18/0215F04C29/0057F04C23/008
    • A scroll compressor reduces the load applied to the thrust bearing, to prevent a thrust bearing from seizing and to improve the service life of the thrust bearing. It comprises an electric motor that is provided within a high pressure space inside a sealed case with a stator fixed within the sealed case and a rotor fixed to a drive shaft. An oscillating shaft is decentered on and extends from the drive shaft. An oscillating scroll member has an insertion hole into which the oscillating shaft is inserted. A fixed scroll member forms a compression space by fitting into the oscillating scroll member, and a block secures the fixed scroll member inside the sealed case and clamps the oscillating scroll member so that it can oscillate freely between the block and the fixed scroll member. The thrust bearing is provided between the drive shaft and the block to hold the lower end of the drive shaft so that it can rotate freely. The internal diameter of the thrust bearing is approximately equal to the external diameter of the oscillating shaft. As a result, the sliding contact surface at the thrust bearing can be reduced to an absolute minimum so that friction at the thrust bearing is reduced, thereby achieving the aforementioned objectives of reducing the load applied to the thrust bearing, preventing the thrust bearing from seizing and improving the service life of the thrust bearing.
    • 涡旋压缩机降低了施加到推力轴承的负载,以防止止推轴承卡住并提高止推轴承的使用寿命。 它包括电机,其设置在密封壳体内的高压空间内,定子固定在密封壳体内,转子固定在驱动轴上。 摆动轴偏心并从驱动轴延伸。 摆动涡旋构件具有插入该摆动轴的插入孔。 固定涡旋构件通过装配到摆动涡旋构件中形成压缩空间,并且块将固定涡旋构件固定在密封壳体内部并夹紧摆动涡旋构件,使得其可以在块和固定涡旋构件之间自由摆动。 推力轴承设置在驱动轴和块之间,以保持驱动轴的下端,使其能够自由旋转。 推力轴承的内径大致等于摆动轴的外径。 因此,推力轴承上的滑动接触面可以减小到绝对最小值,使得止推轴承处的摩擦力减小,从而达到减轻施加在推力轴承上的载荷的上述目的,防止止推轴承卡住 并提高推力轴承的使用寿命。
    • 87. 发明授权
    • Magnetic tape having multiple tracks and recording apparatus therefor
    • 具有多个轨迹的磁带及其记录装置
    • US4591927A
    • 1986-05-27
    • US558152
    • 1983-12-05
    • Isao OwakiSusumu Saito
    • Isao OwakiSusumu Saito
    • G11B5/008G11B5/035G11B5/09G11B20/10G11B5/86
    • G11B5/00817G11B20/10527G11B5/035G11B5/09
    • A magnetic tape is simultaneously recorded with digital signals on one or a plurality of forward recording tracks and reverse recording tracks thereon as the tape travels in a predetermined direction. The digital signals are reproduced from the forward recording tracks when the tape travels in a direction from one end to another end thereof, and the digital signals are reproduced from the reverse recording tracks when the tape travels in a direction from the other end to the one end thereof. The digital signals are recorded with the phase of the digital signals which are recorded on the forward or reverse recording tracks, relatively advanced with respect to the phase of the digital signals which are recorded on the reverse or forward recording tracks, so that solitary reproduced waveforms which are reproduced from the forward and reverse recording tracks respectively have substantially the same assymmetry of zeros or the same symmetry of zeros. The first recording tracks are scanned upon reproduction in a direction opposite to the predetermined direction in which the tape traveled upon recording, and the second recording tracks are scanned upon reproduction in a direction which is the same as the predetermined direction in which the tape traveled upon recording.
    • 当磁带沿预定方向行进时,磁带同时记录有一个或多个正向记录磁道上的数字信号和反向记录磁道。 当磁带从一端到另一端的方向行进时,数字信号从正向记录磁道再现,并且当磁带从另一端向另一端的方向行进时,数字信号从反向记录磁道再现 结束。 数字信号以记录在正向或反向记录磁道上的数字信号的相位记录,相对于记录在反向或正向记录磁道上的数字信号的相位相对较高,使得单独的再现波形 从正向和反向记录轨道再现的信号分别具有与零的基本相同的不对称性或相同的零对称性。 第一记录轨道在与记录带移动的预定方向相反的方向上被再现时被扫描,并且第二记录轨道沿着与磁带行进的预定方向相同的方向被再现时被扫描 记录。
    • 88. 发明授权
    • Swash plate type compressor improved with elongated and tortuous input
and output passage systems
    • 斜盘式压缩机通过细长曲折的输入和输出通道系统改进
    • US4583922A
    • 1986-04-22
    • US684089
    • 1984-12-20
    • Takeo IijimaMototaka ShitaraSeiji SumikawaSusumu Saito
    • Takeo IijimaMototaka ShitaraSeiji SumikawaSusumu Saito
    • F04B27/10F04B39/12F04B1/18F04B11/00
    • F04B27/1081F04B27/1009F04B39/121
    • In an improved swash plate type compressor in which a first end block, holding a first valve plate against one end of the cylinder block, defines a first input plenum and an output plenum with input and output valve means for a first set of cylinder chambers, a partition plate is secured between the other end of the cylinder block and a second end block and holds a second valve plate against that end of the cylinder block, defining for a second set of cylinder chambers a second input plenum with input valve means and an output chamber with an output valve means. The second end block defines inlet and outlet buffering chambers to which an inlet and an outlet open. The cylinder block is formed with an input transfer passage communicated at its ends to the first and second input plenums. The partition plate is formed with an output transfer aperture for the output chamber, communicating it to the outlet buffering chamber. Also, a means communicates from the inlet buffering chamber to the input transfer passage. Thereby, input and output pulsations are well attenuated.
    • 在一种改进的斜盘式压缩机中,其中保持第一阀板抵靠气缸体的一端的第一端块限定了第一输入增压室和具有用于第一组气缸室的输入和输出阀装置的输出增压室, 分隔板被固定在气缸体的另一端和第二端块之间,并且将第二阀板保持在气缸体的端部上,该第二阀板限定用于第二组气缸室,具有输入阀装置的第二输入增压室和 输出室具有输出阀装置。 第二端块限定入口和出口缓冲室,入口和出口打开。 气缸体形成有在其端部连通到第一和第二输入增压室的输入传递通道。 分隔板形成有用于输出室的输出传送孔,将其连通到出口缓冲室。 而且,一种装置从入口缓冲室连接到输入传送通道。 因此,输入和输出脉动被很好的衰减。
    • 89. 发明授权
    • Tape speed control for producing a master tape carrying a digital signal
    • 用于产生承载数字信号的主磁带的磁带速度控制
    • US4527207A
    • 1985-07-02
    • US522697
    • 1983-08-12
    • Isao OwakiSusumu SaitoYasuhiko FujiiShinji Nakamura
    • Isao OwakiSusumu SaitoYasuhiko FujiiShinji Nakamura
    • G11B20/10G11B5/86G11B15/46G11B15/52G11B20/14
    • G11B15/52G11B5/86
    • A digital signal having a configuration of blocks or frames is recorded via a multi-track record on a first group of tracks, such as odd tracks, of a master tape which is driven at a first direction. Then when recording another digital signal by forming a second group of tracks, such as even tracks, in a second direction which is opposite to the first direction, the digital signal prerecorded on the first group of tracks is derived to produce a speed signal indicative of the tape speed at which the digital signal was recorded on the first group. The speed signal is then compared with a reference signal having a predetermined frequency for producing a control signal, which is used to control the driving speed of the master tape. Thus the second group of tracks is formed with the running speed of the master tape being controlled. As a result, the phase difference between the first and second groups of tracks is constant throughout the entire length of the master tape. The speed signal may be derived from a synchronous signal recorded on a control track, which may be formed when forming the first group of tracks.
    • 具有块或帧的配置的数字信号经由多轨迹记录在第一组轨道上,例如在第一方向上被驱动的主磁带,例如奇数轨道。 然后当通过在与第一方向相反的第二方向上形成诸如偶数轨道的第二组轨道来记录另一个数字信号时,导出预先记录在第一组轨道上的数字信号,以产生指示 在第一组记录数字信号的磁带速度。 然后将速度信号与具有预定频率的参考信号进行比较,以产生用于控制主磁带的驱动速度的控制信号。 因此,第二组磁道是由主磁带的运行速度进行控制而形成的。 结果,第一和第二组磁道之间的相位差在母带的整个长度上是恒定的。 速度信号可以从记录在控制轨道上的同步信号导出,其可以在形成第一组轨道时形成。