Turbo machine and method to reduce vibration in turbo machines
AssigneeNederlandse Organisatie voor toegepastnatuurwetenscappelijk onderzoek TNO
InventorJohannes Petrus Maria Smeulers
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Abstract
A turbo machine (1) comprises a casing (2) and a first volute tongue (12), an impeller (3) with at least one vane (4), and a flow splitter plate (5) comprising a second volute tongue (13) for splitting a flow of a fluidic medium produced by the impeller. The flow splitter plate comprises at least one opening (10) connecting the first surface (8) and the second, opposite surface (9) so as to reduce or eliminate vibrations.
Claims15
A turbo machine (1) comprising a casing (2) and a first volute tongue (12), an impeller (3) with at least one vane (4), and a flow splitter plate (5) comprising a second volute tongue (13) for splitting a flow of a fluidic medium produced by the impeller, the flow splitter plate (5) having a first surface (8) and a second, opposite surface (9), the flow splitter plate comprising at least one opening (10) connecting the first surface (8) and the second, opposite surface (9).
A method to reduce vibrations in turbo machines (1) having a casing (2) and a first volute tongue (12), an impeller (3) with at least one vane (4), and a flow splitter plate (5) with a second volute tongue (13) for splitting a flow of a fluidic medium produced by the impeller, the method comprising:
- providing openings (10) in the flow splitter plate;
- and
- diminishing pressure differences at the two sides of the splitter plate (5) by means of the openings (10).
Dependencies are inferred from the claim text.