公开(公告)号：US5101856A

公开(公告)日：1992-04-07

申请号：US569281

申请日：1990-06-28

申请人： Toshifumi Kakinuma ,  Kiyoshi Hayashi

发明人： Toshifumi Kakinuma ,  Kiyoshi Hayashi

IPC分类号： F02D41/20 ,  F16K37/00 ,  H01F7/16

CPC分类号： F02D41/20 ,  F16K37/0083 ,  H01F7/1607 ,  F02D2041/2058 ,  F02D2041/228 ,  Y10T137/8242 ,  Y10T137/86622

摘要： A spool of a valve main body is switched and driven by exciting a solenoid coil by supplying a DC or AC voltage. An intensity of the magnetism generated by the excitation of the solenoid coil is detected by a magnetic sensor. When a predetermined sensor output is obtained, an indicator lamp is lit to indicate that the spool has operated correctly. The intensity of the magnetism due to the DC excitation is detected by magnetoresistive devices. The intensity of magnetism due to the AC excitation is detected by a pickup coil or a current transformer.

公开(公告)号：US4953590A

公开(公告)日：1990-09-04

申请号：US331381

申请日：1989-03-31

申请人： Toshifumi Kakinuma ,  Kiyoshi Hayashi

发明人： Toshifumi Kakinuma ,  Kiyoshi Hayashi

IPC分类号： F02D41/20 ,  F16K37/00 ,  H01F7/16

CPC分类号： F02D41/20 ,  F16K37/0083 ,  H01F7/1607 ,  F02D2041/2058 ,  F02D2041/228 ,  Y10T137/8242 ,  Y10T137/86622

摘要： A spool of a valve main body is switched and driven by exciting a solenoid coil by supplying a DC or AC voltage. An intensity of the magnetism generated by the excitation of the solenoid coil is detected by a magnetic sensor. When a predetermined sensor output is obtained, an indicator lamp is lit to indicate that the spool has operated correctly. The intensity of the magnetism due to the DC excitation is detected by magnetoresistive devices. The intensity of magnetism due to the AC excitation is detected by a pickup coil or a current transformer.

摘要翻译： 阀主体的阀芯通过提供直流或交流电压激励螺线管线圈来切换和驱动。 通过磁传感器检测由螺线管线圈的激励产生的磁强度。 当获得预定的传感器输出时，指示灯点亮以指示阀芯已正确操作。 通过磁阻器件检测由于直流激发引起的磁场强度。 由交流励磁引起的磁场强度由拾取线圈或电流互感器检测。