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:
Aug. 22, 1989
Filed:
Dec. 02, 1987
J.M. Voith GmbH, , DE;
Abstract
The invention relates to a device for connecting fixedly in terms of rotation two coaxial components, for example a shaft and a hub, preferably with an outer and an inner sleeve which enclose a tapered annular space and in which a likewise tapered annular piston is axially displaceable by means of a pressure medium, as a result of which a radial tensioning force is exerted on the components to be connected. For this purpose, either one of the two pressure chambers on the two end faces of the piston is subjected to pressure. According to the invention, the pressure medium is conveyed to the rear pressure chamber by means of a duct which opens into the annular space in the front region of the annular piston and from there passes, via slots in the outer cylindrical surface of the annular piston, to the rear pressure chamber. As a result, the wall of the outer sleeve in the region of the rear pressure chamber remains free of a bore for the pressure medium which is made with the removal of material and which is subject to large positional tolerances. The wall can therefore be made thinner.