Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD AND APPARATUS FOR INCREASING AND MODULATING THE YIELD SHEAR STRESS OF ELECTRORHEOLOGICAL FLUIDS
Document Type and Number:
WIPO Patent Application WO2003042765
Kind Code:
A3
Abstract:
A method for increasing and/or modulating the yield shear stress of an electrorheological fluid (10) includes applying a sufficient electric field to the fluid (10) to cause the formation of chains of particles, and then applying a sufficient pressure to the fluid (10) to cause thickening or aggregation of the chains. An apparatus (20) for increasing and/or modulating the transfer of force or torque between two working structures (18, 22) includes an electrorheological fluid (10) and electrodes (25, 27) through which an electric field is applied to the fluid (10) such that chains of particles are formed in the fluid (10) and, upon application of pressure to the fluid (10), the chains thicken or aggregate and improve the force or torque transmission.

Inventors:
TAO RONGIJA
LAN YUCHENG
KACZANOWICZ EDWARD
XU XIAOJUN
Application Number:
US0233878W
Publication Date:
July 10, 2003
Filing Date:
October 23, 2002
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TEMPLE UNIVERSITY OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
International Classes:
F16F13/30; C10M171/00; F15B21/06; F16D35/00; F16F9/53; F16F15/03; (IPC1-7): B01J19/08; B24B1/00
Foreign References:
US6297159B12001-10-02
US6251785B12001-06-26
US6231427B12001-05-15
Other References:
See also references of EP 1450945A2
Download PDF: