The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2001
Filed:
May. 25, 2000
Michel Marechal, Meriel, FR;
Guillaume Dazin, Montmorency, FR;
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A roll control actuator (,) for installation between first and second axially aligned parts (,) of a torsion bar comprises a first cylindrical housing (,) connectable at one end (,) to the first part of the torsion bar and having a cylindrical wall (,) with an inner surface (,) and a second cylindrical housing (,) connectable at one end (,) to the second part of the torsion bar and having a cylindrical wall (,) with an inner surface (,). The cylindrical wall of the first housing is coaxial with, rotatable relative to, and axially fixed relative to, the cylindrical wall of the second housing. A shaft (,) positioned inside the first and second housings is capable of moving in the axial direction relative to the first and second housings. A first tripot joint (,) is mounted on the shaft and has rollers (,) positioned in helically extending grooves (,) formed in the inner surface of the cylindrical wall of the first housing. A second tripot joint (,) is mounted on the shaft and has rollers (,) positioned in helically extending grooves (,) formed in the inner surface of the cylindrical wall of the second housing. The grooves in the inner surface of the cylindrical wall of the first housing have an opposite rotational direction about the axis (A) to the grooves in the inner surface of the cylindrical wall of the second housing. Fluid chambers (,) are associated with the shaft and the first and second housings to control the relative rotational movement therebetween.