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1. 发明专利

DE3886854D1 未知
公开(公告)号：DE3886854D1
公开(公告)日：1994-02-17
申请号：DE3886854
申请日：1988-08-26
申请人： HITACHI LTD
发明人： WATANABE TAKASHI , SHIOBARA RYOICHI , FURUYAMA MASAYUKI , OHI MASAO
IPC分类号： H02K9/00 , H02K15/16 , G01M1/16
摘要： A method of adjusting a thermal balance of a rotor (1). When obtaining a difference in shaft-vibration component of the rotor (1) between an actual load condition and a no load condition, on the basis of detection results at a simulated load, a difference in shaft-vibration component of the rotating rotor (1) between a no-load condition and a condition in which the rotor (1) is heated from the outside and a difference in shaft-vibration component of the rotating rotor (1) between a no-load condition and a condition in which the rotor (1) is heated from the inside are detected at the simulated load. The detected differences in shaft-vibration component are converted respectively to differences in shaft-vibration component under a temperature condition at the actual load. Both the converted differences in shaft-vibration component are added to each other in a vector manner to obtain a difference in rotor shaft-vibration component at the actual load. Coolant flow rate at each section within the rotor (1) is so adjusted as to eliminate the difference in rotor shaft-vibration component, thereby adjusting the thermal balance of the rotor (1).

2. 发明专利

DE3886854T2 未知
公开(公告)号：DE3886854T2
公开(公告)日：1994-05-05
申请号：DE3886854
申请日：1988-08-26
申请人： HITACHI LTD
发明人： WATANABE TAKASHI , SHIOBARA RYOICHI , FURUYAMA MASAYUKI , OHI MASAO
IPC分类号： H02K9/00 , H02K15/16 , G01M1/16
摘要： A method of adjusting a thermal balance of a rotor (1). When obtaining a difference in shaft-vibration component of the rotor (1) between an actual load condition and a no load condition, on the basis of detection results at a simulated load, a difference in shaft-vibration component of the rotating rotor (1) between a no-load condition and a condition in which the rotor (1) is heated from the outside and a difference in shaft-vibration component of the rotating rotor (1) between a no-load condition and a condition in which the rotor (1) is heated from the inside are detected at the simulated load. The detected differences in shaft-vibration component are converted respectively to differences in shaft-vibration component under a temperature condition at the actual load. Both the converted differences in shaft-vibration component are added to each other in a vector manner to obtain a difference in rotor shaft-vibration component at the actual load. Coolant flow rate at each section within the rotor (1) is so adjusted as to eliminate the difference in rotor shaft-vibration component, thereby adjusting the thermal balance of the rotor (1).

3. 发明专利

CA1289220C METHOD OF ADJUSTING THERMAL BALANCE OF ROTOR 未知
公开(公告)号：CA1289220C
公开(公告)日：1991-09-17
申请号：CA576144
申请日：1988-08-31
申请人： HITACHI LTD
发明人： WATANABE TAKASHI , SHIOBARA RYOICHI , FURUYAMA MASAYUKI , OHI MASAO
IPC分类号： H02K9/00 , H02K15/16 , G01M1/16
摘要： A method of adjusting a thermal balance of a rotor. When obtaining a difference in shaftvibration component of the rotor between an actual load condition and a no load condition, on the basis of detection results at a simulated load, a difference in shaft-vibration component of the rotating rotor between a no-load condition and a condition in which the rotor is heated from the outside and a difference in shaft-vibration component of the rotating rotor between a no-load condition and a condition in which the rotor is heated from the inside are detected at the simulated load. The detected differences in shaftvibration component are converted respectively to differences in shaft-vibration component under a temperature condition at the actual load. Both the converted differences in shaft-vibration component are added to each other in a vector manner to obtain a difference in rotor shaft-vibration component at the actual load. Coolant flow rate at each section within the rotor is so adjusted as to eliminate the difference in rotor shaft-vibration component, thereby adjusting the thermal balance of the rotor.

6. 发明专利

JPS5823200A PLASMA HEATER FOR NUCLEAR FUSION REACTOR AND HEATING METHOD 失效
公开(公告)号：JPS5823200A
公开(公告)日：1983-02-10
申请号：JP12078281
申请日：1981-08-03
申请人： HITACHI LTD
发明人： FURUYAMA MASAYUKI
IPC分类号： H05H1/18

8. 发明专利

JPS54142498A MAGNETIC FIELD GENERATOR 失效
公开(公告)号：JPS54142498A
公开(公告)日：1979-11-06
申请号：JP5000578
申请日：1978-04-28
申请人： HITACHI LTD
发明人： FURUYAMA MASAYUKI , KAZAWA YOSHIAKI
IPC分类号： G01R31/02 , G01R31/00 , G21B1/00 , G21B1/11 , G21B1/25 , H05H1/00 , H05H1/02
摘要： PURPOSE:To prevent from burning by providing magnetic flux variation detecting device for coil block, by output signal of which short circuit of coil block is discriminated early. CONSTITUTION:A device 9 is provided to detect variation of magnetic flux configured by coil block 8 for each coil block 8. Detector 9 is composed of search coil 11. Voltage proportional to variation speed of magnetic flux induced between terminals of search coil 11 is detected with voltage detector 12, output signal of which is detected by magnetic flux at normal period with comparator 14 of descriminating unit 13 and magnetic flux at short circuit period. This enables to detect with high accuracy and damage of coil block can be avoided beforehand.

9. 发明专利

JPS52146818A DEVICE FOR RESTRICTING SHAFT TORQUE VARIATION IN ROTARY SHAFT SYSTEM 失效
公开(公告)号：JPS52146818A
公开(公告)日：1977-12-06
申请号：JP6348576
申请日：1976-06-02
申请人： HITACHI LTD
发明人： FURUYAMA MASAYUKI
IPC分类号： H02P9/14
摘要： PURPOSE:To achieve rapid return to a normal shaft torque by controlling the field current of a synchronous motor in accordance with twisting of a rotary shaft to provide an electric damping for the motor, and by rapidly attenuating the shaft torque caused in short-circuiting or re-opening of a circuit.

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