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    • 1. 发明专利
    • DE4121507A1
    • 1992-01-09
    • DE4121507
    • 1991-06-28
    • MITSUBISHI ELECTRIC CORP
    • HAMAMURA TIYOKOBAYASHI KEIITIROIKEDA HIDEOHONDA KATSUHIKOOGATA YOSHIYASUYAGI NAOKI
    • G01L3/10
    • A strain detector in which a pair of magnetic layer patterns (5, 6) made of a magnetically permeable soft magnetic material are attached to a driven shaft (1) and a pair of detection coils (8, 9) are disposed to surround the respective magnetic layers for detecting a change in magnetic permeability of the magnetic layers which is caused when an external force is applied to the driven shaft. A magnetic yoke (15 or 16) is disposed around each of the detection coils (8 or 9) for promoting the passage of the magnetic flux therethrough, thereby decreasing flux leakage. The magnetic yokes (15, 16) each comprises an axially extending tubular member (15a) and radially inward outer and inner flanges (15d, 15e) extending from axially outer and inner ends of the tubular member, respectively. The magnetic yokes each may be made of a compacted core material containing magnetic powder and binder or assembled from a plurality of parts. A highly electrically-conductive, non-magnetic material (23) may be disposed directly between the inner ends (21b ) of the tubular member (21a) of the magnetic yokes (21) and the detection coils (8, 9) for magnetically isolating them without the need for any inner flange while allowing a compact structure.
    • 6. 发明专利
    • DE4121507C2
    • 1997-02-20
    • DE4121507
    • 1991-06-28
    • MITSUBISHI ELECTRIC CORP
    • HAMAMURA TIYOKOBAYASHI KEIITIROIKEDA HIDEOHONDA KATSUHIKOOGATA YOSHIYASUYAGI NAOKI
    • G01L3/10G01L1/12G01N27/72
    • A strain detector in which a pair of magnetic layer patterns (5, 6) made of a magnetically permeable soft magnetic material are attached to a driven shaft (1) and a pair of detection coils (8, 9) are disposed to surround the respective magnetic layers for detecting a change in magnetic permeability of the magnetic layers which is caused when an external force is applied to the driven shaft. A magnetic yoke (15 or 16) is disposed around each of the detection coils (8 or 9) for promoting the passage of the magnetic flux therethrough, thereby decreasing flux leakage. The magnetic yokes (15, 16) each comprises an axially extending tubular member (15a) and radially inward outer and inner flanges (15d, 15e) extending from axially outer and inner ends of the tubular member, respectively. The magnetic yokes each may be made of a compacted core material containing magnetic powder and binder or assembled from a plurality of parts. A highly electrically-conductive, non-magnetic material (23) may be disposed directly between the inner ends (21b ) of the tubular member (21a) of the magnetic yokes (21) and the detection coils (8, 9) for magnetically isolating them without the need for any inner flange while allowing a compact structure.
    • 8. 发明专利
    • Gas liquid sealing device
    • 气体密封装置
    • JP2009138968A
    • 2009-06-25
    • JP2007313435
    • 2007-12-04
    • Mitsubishi Electric Corp三菱電機株式会社
    • OGATA YOSHIMICHIYAGI NAOKIKOBAYASHI MINORUHIRONAKA SHINGOSATO YUKIO
    • F28D15/02
    • PROBLEM TO BE SOLVED: To provide a gas liquid sealing device of high manufacturing efficiency capable of injecting an operating fluid and a noncondensable gas to the inside with high accuracy even if a compact heat pump is manufactured.
      SOLUTION: This gas liquid sealing device comprises a vacuum exhausting device, an operating fluid supplying portion for supplying the operating fluid, a noncondensable gas supplying portion for supplying the noncondensable gas, a connecting portion having a first connecting port connected with a pipe, a second connecting port connected with an operating fluid supplying portion at an upper portion of the first connecting port, a third connecting port connected with the vacuum exhausting device, and a forth connecting port connected with the noncondensable gas supplying portion, a sealing processing device for sealing the pipe at a sealing position lower than the first connecting port, and an injection nozzle for injecting the operating fluid supplied from the operating fluid supplying portion through the second connecting port, into the pipe connected with the first connecting port, and having a tip movable at upper and lower parts of the sealing position.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:即使制造小型热泵,也能够提供一种能够高精度地将工作流体和不凝气体喷射到内部的制造效率高的气液密封装置。 解决方案:该气体液体密封装置包括真空排气装置,用于供给工作流体的工作流体供给部分,用于供给不可冷凝气体的不可冷凝气体供应部分,具有与管道连接的第一连接口的连接部分 与第一连接口的上部连接有工作流体供给部的第二连接口,与真空排气装置连接的第三连接口和与不可冷凝气体供给部连接的第四连接口,密封处理装置 用于将管道密封在低于第一连接口的密封位置处,以及喷嘴,用于将从工作流体供应部分供应的工作流体通过第二连接口喷射到与第一连接端口连接的管道中,并具有 末端可在密封位置的上部和下部移动。 版权所有(C)2009,JPO&INPIT