20130032442 | Fluid Inerter - The present invention relates to the field of inerters such as those used in vehicle suspension systems to control or counteract dynamic spring forces. The present invention arises from a surprising discovery, based on lab testing of another hydraulic suspension device, that the inertia of the fluid in a feed line has a very significant inertia effect, magnified by the ratio of the piston diameter to the line diameter to the 4th power. As a consequence, sufficient inertial reaction may be provided by the inertance of fluid alone and in the absence of a mechanical flywheel arrangement. Thus according to one aspect of the invention, there is provided an inerter ( | 02-07-2013 |