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US 12,038,020 B2Granted
Diffuser
AssigneeHowden Axial Netherlands B.V.
InventorsWilliam Murray Whyte, Peter Holkers
Life of this patent
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Abstract
A diffuser and method of diffusing a working fluid is disclosed. The assembly includes a shroud, and a hub disposed within the shroud. The hub includes an upstream portion, a downstream portion having a recess extending axially into the hub, the hub being configured to diffuse a flow of fluid downstream of the hub.
Claims21
An assembly comprising:
- a shroud having a substantially uniform radius along an axial length;
- a hub disposed within the shroud, the hub comprising:
- an upstream portion, and
- a downstream portion having a recess extending axially into the hub, the downstream portion being configured to diffuse a flow of fluid downstream of the hub;
- and
- vanes radially extending between the hub and the shroud.
3 more elements
A method of diffusing a flow of fluid comprising:
- inducing a flow of fluid via an axial fan;
- directing the flow toward a hub having guide vanes;
- accelerating a first portion of the flow along an upstream end of the hub and towards the guide vanes;
- rectifying the flow via the guide vanes;
- and
- after rectifying the flow via the guide vanes, guiding a second portion of the flow of fluid towards a recess in a downstream portion of the hub, wherein guiding the second portion of the flow diffuses a third portion of the flow radially inward.
3 more elements
An assembly comprising:
- a shroud;
- a hub disposed within the shroud, the hub comprising:
- an upstream portion,
- a downstream portion having a recess extending axially into the hub, and
- a recirculation channel extending from the recess to the upstream portion, the recirculation channel being configured to diffuse a flow of fluid downstream of the hub;
- and
- vanes radially extending between the hub and the shroud.
4 more elements
Dependencies are inferred from the claim text.