DOUBLE PUMPER MAGNETO-RHEOLOGICAL HYDRAULIC TIE BAR ASSEMBLY

摘要

A tie bar assembly includes front and rear units each including inner inserts interconnected with outer inserts with webs of elastomeric material. A pole sub-assembly is disposed between the units. The pole sub-assembly and the units define front and rear fluid chambers containing a magneto-rheological fluid. Fluid orifices are disposed through the pole sub-assembly for flow of the magneto-rheological fluid between fluid chambers. An electromagnet coil generates an electromagnetic field to affect viscosity of the magneto-rheological fluid. A connecting rod connects inner inserts and is slidably disposed through the pole sub-assembly for causing movement of the magneto-rheological fluid between fluid chambers. A displacement sensor detects movement to generate a signal to the electromagnet coil. Front and rear travel cushions are each disposed on the inner inserts for limiting the movement of the inner inserts toward the pole sub-assembly.

主权项

1. A tie bar assembly for use in a vehicle comprising;
a housing having a tubular shape disposed about a central axis, a rear unit disposed annularly about said central axis in said housing including a cylindrical rear inner insert and a rear outer insert and a rear web interconnecting said rear inserts for allowing axial movement of said rear inner insert relative to said rear outer insert, a front unit disposed annularly about said central axis in said housing including a cylindrical front inner insert and a front outer insert and a front web interconnecting said front inserts for allowing axial movement of said front inner insert relative to said front outer insert, a connecting rod disposed along said central axis attached to said rear inner insert and said front inner insert, a pole sub-assembly disposed annularly about said central axis and between said rear unit and said front unit, said pole sub-assembly and said units defining a front fluid chamber extending annularly about said central axis and a rear fluid chamber extending annularly about said central axis, a magneto-rheological fluid contained within said front fluid chamber and said rear fluid chamber, a plurality of fluid orifices disposed through said pole sub-assembly for fluid flow of said magneto-rheological fluid between said front fluid chamber and said rear fluid chamber, said pole sub-assembly having a central bore and said connecting rod slidably disposed in said central bore for causing movement of said magneto-rheological fluid between said front fluid chamber and said rear fluid chamber through said fluid orifices in response to simultaneous movement of said inner inserts in either direction along said central axis.