Title:
THROTTLE VALVE DEVICE
Document Type and Number:
Japanese Patent JP2014125917
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a throttle valve device.SOLUTION: A throttle valve device 1 for adjusting an amount of air taken in an engine by rotating a valve body 12 arranged in a flow passage 11 is provided with a bypass flow passage for bypassing the flow passages in which the valve body is arranged. The device has a function for adjusting a rotation speed of the engine during idling by controlling a flow rate of the air passing through the bypass flow passage with an actuator 30. The device has a rotation angle detection device 20 for detecting a rotation angle of the valve body. The rotation angle detection device has a magnet 21 rotating according to rotation of the valve body, and a magnetic sensor 22 for detecting the rotation angle of the valve body by detecting variation of a magnetic flux density of a magnetic field generated by a magnet. The magnetic sensor is arranged such a form that a direction of a sensing plane for sensing the magnetic flux density is not parallel to a direction of the magnetic field generated by the actuator.
Inventors:
SEKIGUCHI SHINICHI
Application Number:
JP2012281670A
Publication Date:
July 07, 2014
Filing Date:
December 25, 2012
Export Citation:
Assignee:
MIKUNI KOGYO KK
International Classes:
F02D9/00
Domestic Patent References:
| JPH09287495A | 1997-11-04 | |||
| JP2001059702A | 2001-03-06 | |||
| JP2008203272A | 2008-09-04 | |||
| JPH05195825A | 1993-08-03 | |||
| JP2010256061A | 2010-11-11 |
Foreign References:
| WO2005040730A1 | 2005-05-06 |
Attorney, Agent or Firm:
Iat International Patent Business Corporation