Patent ID: 6155574
Filing Date: 2000-12-05
Classification: B04B,F16J,Y10S

Abstract:
A labyrinth sealing device for sealing a gap between a first member (1) and a second member (2), the first member (1) being rotatable in relation to the second member (2) about an axis of rotation (x), and one of the two members (2) forming a cavity within itself, in which the other of the two members (1) extends axially and thereby forms said gap between the two members (1, 2), the labyrinth sealing device (4) comprising a first sealing element (10), having a first attachment member (11) arranged to be fixedly provided on the first member (1) and extend around the axis of rotation (x) and from the first member (1) extend towards the second member (2), and a second sealing element (20), having a second attachment member (21) arranged to be fixedly provided on the second member (2) and extend around the axis of rotation (x) and from the second member (2) extend towards the first member (1) closely adjacent to the first sealing element (10) without direct contact with the latter and with the first member (1)wherein the first sealing element (10) comprises a first flange member (12) enclosing the axis of rotation (x), which member is fixedly connected to a part of the first attachment member (11) facing the second member (2) and extends towards the first member (1) in such a manner that the first attachment member (11) together with the first flange member (12) forms a first chamber (13) enclosing the axis of rotation (x), which chamber is open towards the first member (1) leaving a first gap (14), enclosing the axis of rotation (x), between the first flange member (12) and the first member (1),further wherein the second sealing element (20) comprises a second flange member (22) enclosing the axis of rotation (x), which member is fixedly connected to a part of the second attachment member (21) facing the first member (1) and extends towards the second member (2) in such a manner that the second attachment member (21) together with the second flange member (22) forms a second chamber (23) enclosing the axis of rotation (x), which chamber is open towards the second member (2) leaving a second gap (24), enclosing the axis of rotation (x), between the second flange member (22) and the second member (2), andfurther wherein the first and second flange members (12 and 22, respectively) are provided in such a manner overlapping each other that the first flange member (12) extends through the second gap (24) and towards the first member (1) in the second chamber (23) and the second flange member (22) extends through the first gap (14) and towards the second member (2) in the first chamber (13).