MAGNETORHEOLOGICAL FLUID DAMPER

摘要

A magnetorheological fluid damper using magnetorheological fluid, whose viscosity changes according to an intensity of a magnetizing field, as working fluid includes a cylinder in which magnetorheological fluid is sealed, a piston which is slidably arranged in the cylinder, a first fluid chamber and a second fluid chamber which are partitioned by the piston, a main flow passage which is open on opposite end surfaces of the piston and allows communication between the first and second fluid chambers, an electromagnetic coil which generates a magnetizing field to be applied to the magnetorheological fluid flowing in the main flow passage, a bypass flow passage which is formed at a position less affected by the magnetizing field generated by the electromagnetic coil than the main flow passage, and a bypass branching portion which branches the bypass flow passage from the main flow passage.

主权项

1. A magnetorheological fluid damper using magnetorheological fluid, whose viscosity changes according to an intensity of a magnetizing field, as working fluid, comprising:
a cylinder in which magnetorheological fluid is sealed; a piston which is slidably arranged in the cylinder; a first fluid chamber and a second fluid chamber which are partitioned by the piston; a main flow passage which is open on opposite end surfaces of the piston and allows communication between the first and second fluid chambers; an electromagnetic coil which generates a magnetizing field to be applied to the magnetorheological fluid flowing in the main flow passage; a bypass flow passage which is formed at a position less affected by the magnetizing field generated by the electromagnetic coil than the main flow passage; and a bypass branching portion which branches the bypass flow passage from the main flow passage.