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:
Jul. 17, 1990
Filed:
Sep. 08, 1988
Richard W Reynolds, Rockford, IL (US);
Mark S Stroze, Rockford, IL (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
A bent-axis hydraulic apparatus having a case in which a rotatable cylinder block is positioned and which is associated with a rotatable shaft at a drive angle therebetween. A split angle spline drive interconnects the cylinder block of the hydraulic axial piston unit with a rotatable shaft for transmission of torque therebetween without any side loading on the pistons of the axial piston unit. The split angle spline drive has two series of external teeth associated one with the cylinder block and the other with the rotatable shaft which individually mesh at two locations opposite the axis of rotation thereof with two spaced-apart sets of internal teeth on a ring gear that is rotatably-mounted in fixed location within the case of the hydraulic apparatus. The tooth mesh center lines are equally spaced from the pivot point for the cylinder block and the rotatable shaft to achieve synchronization.