Patent ID: 6857457
Filing Date: 2005-02-22
Classification: B60C

Abstract:
1. A rotary feedthrough for a device for inflating or deflating a tire on a vehicle wheel, comprising: a housing having a housing bore centered on a longitudinal axis, said housing bore forming an inner face, and said housing having a first connection bore; an inner member arranged in the housing bore, said inner member having an outer face, said outer face arranged to be radially spaced from the inner face of said housing; two closing elements being axially arranged with a distance between each other, said closing elements bridging the radial distance between the inner face of the housing and the inner member, said closing element rotatably supporting the housing and the inner member around each other and together with said housing and inner member enclose a chamber, and said two closing elements forming a counter sealing face towards the chamber; at least one of said two closing elements being separate from the housing and the inner member; and a sealing arrangement in the chamber having a first sealing ring for each closing element, each first sealing ring having a radially extending first sealing face for axially sealing abutting the counter sealing face of the corresponding closing element and a second sealing face extend the first sealing face axially displaceably guided along the longitudinal axis, and said sealing arrangement having a second sealing ring for each closing element, each second sealing ring having an annular attachment portion and an annular membrane sealing portion attached thereto, and an annular edge distanced from the attachment portion and facing away from the attachment portion axially abutting the second sealing face of the first sealing ring.