VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE,申请号JP20010266750-传众专利搜索

VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

申请公布号：JP2003074315(A)

申请号：JP20010266750

申请日期：2001.09.04

申请公布日期：2003.03.12

申请人：

HITACHI UNISIA AUTOMOTIVE LTD

发明人：KOBAYASHI YOSHIYUKI;YAMAMURO SHIGEAKI;YOSHIDA KATSUNARI

分类号：F01M9/10;F01L1/34;(IPC1-7):F01L1/34

主分类号：F01M9/10

摘要：<p>PROBLEM TO BE SOLVED: To surely maintain an angle always as desired the assembly angle of a drive rotary unit and a driven rotary unit. SOLUTION: A permanent magnet block 29 having a plurality of magnetic poles is connected to an intermediate rotary unit 23 of an assembly angle operating mechanism 5, a yoke block 30 is connected to a lever shaft 10. Each yoke 39A, 39B of this block 30 is provided with a first/second pole tooth ring 37, 38 having a plurality of pole teeth opposed to the permanent magnet block 29, so as to place these pole teeth alternately along a circumferential direction. The mutual pole tooth of the yokes 39A, 39B is shifted by a preset pitch. An electromagnetic coil block 32 is fixed to a housing 12, a magnetic incoming/ outgoing part of coils 33A, 33B is opposed to the pole tooth rings 37, 38 through an air gap. A generated magnetic field of the coils 33A, 33B is changed with a prescribed pattern. The intermediate rotary unit 23 is formed of a magnetic material, magnetic flux of the permanent magnet block 29 is made easy to flow.</p>