LIQUID SEALED TYPE ENGINE MOUNT

摘要

PROBLEM TO BE SOLVED: To always perform efficient vibration isolation effects against vibrations in a wide range of frequency domains by miniaturizing and lightening an entire mount, reducing power consumption, and effectively converging magnetic fluxes to rapidly and significantly increase or decrease viscosity of magnetic fluid. SOLUTION: A space in a hollow main body 13 connected with an attachment member 10 on a vibration generating source side and a tubular member 11 made of a magnetic material on a vibration receiving side via a conical elastic rubber 12 is divided into a main liquid chamber 14 and a sub liquid chamber 15 by a movable wall 16 capable of elastic displacement. A capsule-like magnetic fluid 4 is intervened between an annular member 2 made of a magnetic material and fixed and supported around the movable wall 16 and an annular member 2 made of a magnetic material fixed and connected to the inner periphery of the tubular member 11. A magnetic flux control device 7 is installed for adjusting the size of magnetic flux generated in a magnetic circuit 6 by changing magnetic forces of two electromagnets 5A, 5B fixed and held on the tubular member 11 side under an opposing condition with same polarity. COPYRIGHT: (C)2003,JPO