Axial dynamic brush seal
An axial and dynamic brush seal system wherein a mating ring is attached to a rotor and has a sealing surface. The bristles of the brush seal are disposed about the rotor and extend axially so that the terminal free ends of the bristles engage the sealing surface of the mating ring.
1 . An axial and dynamic brush seal system comprising:
a rotor;
a mating ring attached to the rotor and having a sealing surface; and
a plurality of bristles about the rotor and extending axially, the terminal free ends of the bristles engaging the sealing surface of the mating ring.
2 . The brush seal system of claim 1 in which the rotor extends along a longitudinal axis and the sealing surface of the mating ring is angled with respect to an axis perpendicular to the longitudinal axis.
3 . The brush seal system of claim 2 in which the sealing surface is angled away from the bristles.
4 . The brush seal system of claim 2 in which the sealing surface is angled towards the bristles.
5 . The brush seal system of claim 2 in which the sealing surface of the mating ring is angled to match the terminal free ends of the bristles in a blow down condition.
6 . The brush seal system of claim 1 further including a housing for the bristles.
7 . The brush seal system of claim 6 in which the housing includes an axially extending front plate and an axially extending back plate about the bristles.
8 . The brush seal system of claim 7 further including a retainer for the bristles sandwiched between the front and back plates.
9 . The brush seal system of claim 6 in which the housing includes a subsystem configured to urge the free ends of the bristles against the sealing surface of the mating ring.
10 . The brush seal system of claim 9 in which the subsystem is magnetic.
11 . The brush seal system of claim 10 in which the housing includes a first magnet and there is a second magnet associated with the bristles to urge the free ends of the bristles against the sealing surface of the mating ring.
12 . The brush seal system of claim 1 in which the bristles are angled with respect to the sealing surface.
13 . An axial and dynamic brush seal system comprising:
a rotor;
a mating ring attached to the rotor and having a sealing surface; and
a stationary housing including a plurality of bristles extending therefrom disposed about the rotor, the bristles extending axially and the terminal free ends of the bristles engaging the sealing surface of the mating ring.
14 . The brush seal system of claim 13 in which the rotor extends along a longitudinal axis and the sealing surface of the mating ring is angled with respect to an axis perpendicular to the longitudinal axis.
15 . The brush seal system of claim 14 in which the sealing surface is angled away from the bristles.
16 . The brush seal system of claim 14 in which the sealing surface is angled towards the bristles.
17 . The brush seal system of claim 13 in which the sealing surface of the mating ring is angled to match the terminal free ends of the bristles in a blow down condition.
18 . The brush seal system of claim 13 in which the housing includes an axially extending front plate and an axially extending back plate about the bristles.
19 . The brush seal system of claim 18 further including a retainer for the bristles sandwiched between the front and back plates.
20 . The brush seal system of claim 13 in which the housing includes a subsystem configured to urge the free ends of the bristles against the sealing surface of the mating ring.
21 . The brush seal system of claim 20 in which the subsystem is magnetic.
22 . The brush seal system of claim 21 in which the housing includes a first magnet and there is a second magnet associated with the bristles to urge the free ends of the bristles against the sealing surface of the mating ring.
23 . The brush seal system of claim 9 in which the bristles are angled with respect to the sealing surface.
24 . An axially extending dynamic brush seal comprising:
a plurality of bristles configured to be disposed about a rotor wherein the terminal ends of the bristles engage a sealing surface attached to the rotor; and
a housing for holding the bristles.
25 . The brush seal system of claim 24 in which the housing includes an axially extending front plate and an axially extending back plate about the bristles.
26 . The brush seal system of claim 25 further including a retainer for the bristles sandwiched between the front and back plates.
27 . The brush seal system of claim 24 in which the housing includes a subsystem configured to urge the free ends of the bristles against the sealing surface of the mating ring.
28 . The brush seal system of claim 27 in which the subsystem is magnetic.
29 . The brush seal system of claim 28 in which the housing includes a first magnet and there is a second magnet associated with the bristles to urge the free ends of the bristles against the sealing surface of the mating ring.
30 . An axial and dynamic brush seal for a system including a mating ring attached to a rotor and defining a sealing surface, the brush seal comprising:
a plurality of bristles to be disposed about the rotor, the bristles extending axially to engage the sealing surface of the mating ring.