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. 18, 2000
Filed:
Jun. 15, 1999
Karl Hiestand, V-88630 Pfullendorf, DE;
Other;
Abstract
In a device (1) for supplying a pressurized medium from a fixed component (2) into a rotating component (3) with a radially aligned sealing gap (11) provided between the components and in which the fixed component (2) comprises two rings (12, 13), the ring (13) delimiting the sealing gap (11) being held in an axially movable arrangement and with at least one control pressure chamber (35) provided between the two rings (12, 13), the movable ring (13) has an intermediate pressure chamber (31) on its end surface (16) facing the sealing gap (11) with this intermediate pressure chamber (31) being permanently connected to the control pressure chamber (35) by means of ducts (36, 37) worked into the axially movable ring (13). This embodiment allows the width of the radial sealing gap (11) to be set automatically, thereby practically precluding metal-on-metal friction between the components (2, 3) in the area of the radial sealing gap whilst only small leakage oil losses have to be accepted.