42.
    发明专利
    失效

    公开(公告)号:JP2607376B2

    公开(公告)日:1997-05-07

    申请号:JP30856587

    申请日:1987-12-08

    IPC分类号: H02N10/00

    TEMPERATURE SENSITIVE ACTUATOR AND IDLE SPEED CONTROLLER

    公开(公告)号:JPH07337050A

    公开(公告)日:1995-12-22

    申请号:JP15302294

    申请日:1994-06-10

    申请人: MIKUNI KOGYO KK

    发明人: MURAJI TETSURO

    摘要: PURPOSE:To perform control depending on the temperature without any independent temperature detection elements by disposing a magnetic temperature- sensitive member, having temperature dependent magnetic characteristics, at a part of a magnetic circuit CONSTITUTION:When a thermoferrite is employed as a magnetic temperature- sensitive member 14, lines of magnetic flux A normally flows from N pole of a magnet forming a rotor 13 through pole pieces 11-1, 11-2 to a yoke 10 (as shown by solid lines) thence returns through pole pieces 11-3, 11-4 back to S pole. When the temperature rises, the permeability of the pole pieces 11-1, 11-4 (magnetic temperature-sensitive member 14) decreases to weaken the lines of magnetic flux passing through the pole pieces 11-1, 11-4 and to strengthen the lines of magnetic flux on the side of pole pieces 11-2, 11-3 (dot line). Consequently, the magnet (rotor) 13 rotates counter-clockwise about a shaft 12. When the shaft 12 rotates in the direction for closing the valve, the valve can be closed as the temperature rises. This structure realizes control depending on the temperature without any independent temperature detection element.

    45.
    实用新型
    失效

    公开(公告)号:JPH0742239Y2

    公开(公告)日:1995-09-27

    申请号:JP6159888

    申请日:1988-05-12

    IPC分类号: H02K33/00 H02N10/00

    SHAPE MEMORY ACTUATOR
    46.
    发明专利

    公开(公告)号:JPH0775355A

    公开(公告)日:1995-03-17

    申请号:JP21978093

    申请日:1993-09-03

    发明人: ARAI KAZUHIKO

    摘要: PURPOSE:To make a relative position variable by a member which makes the relative position with a shape memory alloy variable. CONSTITUTION:Piezoelectric elements 12a and 12b are fixed to a base member 11, while a resistor heater 13 driven by the piezoelectric elements 12a and 12b is set on the base member 11. A shape memory alloy 14 having a memory of a shape of being bent is restrained by the base member 11 in relation to the direction of displacement of the resistor heater 13. A control device 15 is formed by having a control input signal generating device 16 for driving the piezoelectric elements, a voltage amplifier 17 for driving the piezoelectric elements, a control input signal generating device 18 for electrifying the resistor heater and a current amplifier 19 for electrifying the resistor heater.

    INCH WORM
    47.
    发明专利

    公开(公告)号:JPH079384A

    公开(公告)日:1995-01-13

    申请号:JP15964993

    申请日:1993-06-29

    申请人: SHIMADZU CORP

    发明人: OTA YASUYOSHI

    摘要: PURPOSE:To provide an inch worm which is excellent in positioning accuracy, can make the whole of a device small in size, can make the capacity of a driver small, and also can materialize high speed operations. CONSTITUTION:An arm 1 is inserted into both a stator 3 and a moving element 4, and let the moving element 4 be normally/reversely rotated with respect to the stator 3 while the stator 3 or the moving element 4 is being made to grip/release the arm 1 through energizing means 5, 6 and 7 mainly composed of shape memory alloys (a) through (c).

    THERMOMAGNETIC DRIVING METHOD AND ACTUATOR

    公开(公告)号:JPH074348A

    公开(公告)日:1995-01-10

    申请号:JP14894193

    申请日:1993-06-21

    IPC分类号: F03G7/00 H01L37/04 H02N10/00

    摘要: PURPOSE:To provide a thermomagnetic driving method and an actuator applicable in a wide range as well as enabling compact constitution. CONSTITUTION:The movable member of an impeller type rotor 32 formed of thermosensitive magnetic material is rotatably interposed in the gap 31 of a closed magnetic circuit. The required rotor salient pole of the rotor 32 is heated to make the magnetization of the required rotor salient pole disappear temporarily, and the magnetic flux PHI distribution in the gap 31 is changed to rotate the rotor 32.

    BIMETAL TYPE ACTUATOR AND MOVING DEVICE

    公开(公告)号:JPH06335268A

    公开(公告)日:1994-12-02

    申请号:JP11620193

    申请日:1993-05-18

    申请人: NIPPON DENSO CO

    IPC分类号: F03G7/06 H02N10/00

    摘要: PURPOSE:To provide bimetal type actuator and a moving device which can be miniaturized and simplified in structure. CONSTITUTION:At least three bimetals 4 are provided at a certain angular interval and displaceably in the up and down directions to form a unit actuator 2. A bimetal type actuator 1 is constituted by laminating and coupling a plurality of unit actuators 2 so as to accord with the position of each of bimetals 4. The bimetals 4 in each vertical row of each unit actuator 2 are connected in series, and a power supply circuit is connected to allow a current to flow into each of bimetals in each vertical row connected in series.