| 摘要 |
A fluid damper of the piston-and-cylinder type in which the damping fluid is a magneto-rheological fluid and the piston having a piston head which includes a fluid pathway 218 through which fluid may flow from one side of the piston head to the other. The piston head includes an electromagnet 219 which is actuable to define two magnetic poles with a magnetic flux (220 in Fig. 17) therebetween extending across the pathway 218. The piston head is arranged such that the flux at only a single pole of the electromagnet is capable of substantially influencing the viscosity of the magneto-rheological fluid in the pathway. |
