DEVICE FOR CONTROLLING NUMBER OF IDLING REVOLUTIONS OF INTERNAL COMBUSTION ENGINE,申请号JP19970104244-传众专利搜索

DEVICE FOR CONTROLLING NUMBER OF IDLING REVOLUTIONS OF INTERNAL COMBUSTION ENGINE

申请公布号：JPH10299624(A)

申请号：JP19970104244

申请日期：1997.04.22

申请公布日期：1998.11.10

申请人：

HITACHI LTD;HITACHI CAR ENG CO LTD

发明人：FUSHITSUGU YUTAKA;YAMAMOTO YOSHITAKA

分类号：F02D9/02;F02D9/14;F02M69/32;F16K31/04

主分类号：F02D9/02

摘要：PROBLEM TO BE SOLVED: To prevent dust and carbon passing through a bypass from intruding into an actuator by providing a member for partitioning the actuator for opening and closing a control valve element in the axial direction and the control valve element. SOLUTION: A device for controlling the number of idling revolutions weighs the flow of air passing through a bypass 7, of the air passing an air cleaner and weighed by a throttle valve 5 and flowing to an engine, with a valve element 4 provided in the bypass 7 branched from a main passage and moved back and forth in the axial direction. The outer ring of an elastic partitioning member 1 is fixed to the casing 8 of an actuator and the inner ring thereof is put into slidable contact with the labyrinth structural member 9 of the valve element 4. The elastic partitioning member 1 closes a pass shown by an arrow and prevents the intrusion of dust and carbon and does not affect the movement of the valve element 4 because it is in slidable contact with the labyrinth structural member 9 of the valve element 4 moved back and forth in the axial direction.