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    • 3. 发明授权
    • Mechanical seal
    • 机械密封
    • US4145059A
    • 1979-03-20
    • US745060
    • 1976-11-26
    • Masaya ImaiSeiji Watanabe
    • Masaya ImaiSeiji Watanabe
    • F16J15/34
    • F16J15/3464
    • A mechanical seal comprises, in addition to a rotating seal element, a stationary seal element, and a support ring: means for securing the support ring to a rotating shaft in such a manner that, between a casing and the shaft, the ring remains nonrotatable by the shaft but can travel axially following any axial movement of the shaft. The securing means comprises nonrotational stop means located between the casing and support ring and means located between the ring and shaft to permit the both to rotate relative to each other but keep them from moving axially. The nonrotational stop means is a combination of pins and holes, key ways and keys, or the like, and the means located between the ring and shaft to permit the both to rotate is either a pair of rolling bearings or a plurality of journal bearings plus a thrust sliding bearing.
    • 除了旋转密封元件之外,机械密封件还包括固定密封元件和支撑环:用于将支撑环固定到旋转轴的装置,使得在壳体和轴之间,环保持不可旋转 轴可随着轴的任何轴向运动轴向行进。 固定装置包括位于壳体和支撑环之间的非旋转停止装置和位于环和轴之间的装置,以允许两者相对于彼此旋转,但是使它们不轴向移动。 非旋转停止装置是销和孔,键槽和键等的组合,并且位于环和轴之间以允许两者旋转的装置是一对滚动轴承或多个轴颈轴承加上 推力滑动轴承。
    • 4. 发明授权
    • Screw rotor with specific tooth profile
    • 螺旋转子具有特定的齿廓
    • US4406602A
    • 1983-09-27
    • US326358
    • 1981-12-01
    • Katsuhiko KasuyaMitsuru FujiwaraTetsuzo MatsunagaMasaya ImaiYasuo Takahashi
    • Katsuhiko KasuyaMitsuru FujiwaraTetsuzo MatsunagaMasaya ImaiYasuo Takahashi
    • F01C1/16F04C18/08F04C18/16
    • F04C18/084
    • In a screw rotor including a female rotor member and a male rotor member rotatable about parallel shafts and respectively while meshing with each other, the forward face flank of the female rotor member is composed of a first flank of the forward face formed by a parabolic curve, and a second flank of the forward face formed by a circular arc of a radius R.sub.2, and the backward face flank of the female rotor member is composed of a first flank of the backward face generated by the backward face tooth top flank of the male rotor member having a radius R.sub.5, and a second flank of the backward face formed by a circular arc of a radius R.sub.3 which is smaller than the radius R.sub.2 of the second flank of the forward face flank. The tooth profile of the male rotor member is essentially formed by the forward face flank and the backward face flank of the female rotor member.
    • 在包括阴转子构件和阳转子构件的螺旋转子中,阴转子构件和阳转子构件可以围绕平行轴旋转并且分别彼此啮合,阴转子构件的前面侧面由前抛面的第一侧面构成,由抛物线曲线 ,并且由半径R2的圆弧形成的前表面的第二侧面,并且阴转子构件的后侧面由由男性的后面齿顶侧面产生的后方的第一侧面构成 转子构件具有半径R5,并且后表面的第二侧面由半径R3的圆弧形成,该圆弧的半径R3小于前侧面的第二侧面的半径R2。 阳转子部件的齿廓基本上由阴转子部件的前面侧面和后侧面形成。
    • 7. 发明授权
    • Apparatus for measuring the content of hydrogen dissolved in a molten
metal
    • 用于测量溶解在熔融金属中的氢的含量的装置
    • US4454748A
    • 1984-06-19
    • US426138
    • 1982-09-28
    • Shiro TeraiShiro SatoSakae KatoMasaya ImaiSusumu InumaruMasahiro Yoshida
    • Shiro TeraiShiro SatoSakae KatoMasaya ImaiSusumu InumaruMasahiro Yoshida
    • G01N27/18G01N33/20
    • G01N27/18G01N33/203
    • An apparatus for measuring the content of hydrogen dissolved in a molten metal, comprising an immersion head immersed within a batch of the molten metal to bring an inert gas into contact with the molten metal, an inert gas circulating device connected to the immersion head and having gas passages cooperating with the immersion head to form a closed circulatory path for circulating the inert gas a plurality of times through the path to and from the immersion head. The apparatus further comprises a hydrogen gas content measuring device connected to the gas passage for measuring the hydrogen-content of the inert gas flowing through the gas passage, the measuring device comprising a first measuring cell connected to the gas passage and having therein an electric resistance wire exposed to the circulated inert gas containing the hydrogen picked up from the molten metal, and further comprising a second measuring cell filled with atmosphere whose thermal conductivity is substantially equal to that of the inert gas. The measuring device includes a housing block which has portions to define a vacuum chamber surrounding each of the measuring cells in order to thermally separate the cell from the atmosphere surrounding the measuring device. The vacuum chambers for both cells are connected to each other and to a vacuum source. The housing block may be a cylindrical member of metal connected to an evacuation pipe.
    • 一种用于测量溶解在熔融金属中的氢的含量的装置,包括浸入一批熔融金属中的浸没头,使惰性气体与熔融金属接触;惰性气体循环装置,连接到浸没头,并具有 与浸没头配合的气体通道以形成用于使惰性气体多次循环穿过和从浸没头的路径的闭合循环路径。 该装置还包括连接到气体通道的氢气含量测量装置,用于测量流过气体通道的惰性气体的氢含量,测量装置包括连接到气体通道并具有电阻的第一测量单元 电线暴露于含有从熔融金属中提取的氢的循环惰性气体,并且还包括填充有导热性基本上等于惰性气体的气氛的气氛的第二测量池。 测量装置包括壳体块,其具有限定围绕每个测量单元的真空室的部分,以将电池与测量装置周围的大气热分离。 两个电池的真空室彼此连接并连接到真空源。 壳体块可以是连接到排气管的金属的圆柱形构件。