| 摘要 |
PURPOSE:To furthermore improve response for torque transmission to rear wheels as well as response for differential restriction by providing No.1 or No.2 rotating member monolithically with an electromagnet the transmitting characteristics of which is instantly changeable so that the line of magnetic force of it easily passes through. CONSTITUTION:When apparent viscosity of working fluid is changed in the magnetic field of an electromagnet 17, or a space between No.1 and No.2 resistance plates 15 and 16 is regulated, torque characteristics is instantly changed. Hence, when a viscous coupling 6 of this type is applied to four wheel drive based on front-engine front-drive, response for torque transmission to rear wheels can be improved. And when it is applied to a differential restriction device, response for differential restriction can be improved. In addition, the installation of the electromagnet 17 monolithically with No.1 or No.2 rotating member 19 and 13 allows the line of magnetic force of the electromagnet 17 to easily pass through No.1 or No.2 rotating member 19 and 13. Hence, both response for troque transmission and response for differential restriction can be furthermore improved. |
