Centrifugal compressor and manufacturing method thereof
US-9470233-B2 · Oct 18, 2016 · US
Compressor and gas turbine
US2016169241A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016169241-A1 |
| Application number | US-201414907987-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 12, 2014 |
| Priority date | Oct 17, 2013 |
| Publication date | Jun 16, 2016 |
| Grant date | — |
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Abstract
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A compressor includes a rotor rotating about an axis thereof; a rotor casing surrounding the rotor from an outer circumferential side of the rotor and forming a main flow passage of a fluid between the rotor; an extraction-chamber casing provided at an outer circumferential side of the rotor casing, and forming an extraction chamber that communicates with the main flow passage between the rotor casing; and an extraction nozzle connected to the extraction-chamber casing from an outer circumferential side of the extraction-chamber casing and guiding the fluid inside the extraction chamber to an outside of the compressor. A gap in a radial direction between the extraction-chamber casing and the rotor casing is larger at a side of the extraction nozzle in a rearward rotation direction of the rotor than at a side of the extraction nozzle in the forward rotation direction of the rotor.
First claim
Opening claim text (preview).
1 . A compressor comprising: a rotor rotating about an axis thereof; a rotor casing surrounding the rotor from an outer circumferential side of the rotor and forming a main flow passage of a fluid between the rotor; an extraction-chamber casing provided at an outer circumferential side of the rotor casing, and forming an extraction chamber that communicates with the main flow passage between the rotor casing; and an extraction nozzle connected to the extraction-chamber casing from an outer circumferential side of the extraction-chamber casing and guiding the fluid inside the extraction chamber to an outside of the compressor, wherein an inner circumferential surface of the extraction nozzle and the outer circumferential surface in the radial direction of the extraction chamber are connected with a smooth curve surface that is convex toward the flow passage of the fluid, and wherein a gap in a radial direction between the extraction-chamber casing and the rotor casing is larger at a side of a position where the extraction nozzle is provided in a rearward rotation direction of the rotor than at a side of the position where the extraction nozzle is provided in the forward rotation direction of the rotor. 2 . The compressor according to claim 1 , wherein the gap, in the radial direction between the extraction-chamber casing and the rotor casing and at the side of the extraction nozzle in the rearward rotation direction, is formed so as to become gradually larger toward the forward rotation direction of the rotor. 3 . The compressor according to claim 1 , wherein the gap, in the radial direction between the extraction-chamber casing and the rotor casing and at the side of the extraction nozzle in the forward rotation direction, is formed so as to become gradually smaller toward the rearward rotation direction of the rotor. 4 . (canceled) 5 . A gas turbine comprising: the compressor according to claim 1 and configured to compress an air as the fluid by the rotation of the rotor; a combustor generating combustion gas by burning a fuel in a compressed air compressed by the compressor; and a turbine driven by the combustion gas from the combustor.
Assignees
Inventors
Classifications
- F04D27/023Primary
Details or means for fluid extraction · CPC title
especially adapted for elastic fluid pumps · CPC title
Arrangements therefor, e.g. bleed or by-pass valves · CPC title
Heating air supply before combustion, e.g. by exhaust gases · CPC title
the gas being bled from the gas-turbine compressor · CPC title
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Frequently asked questions
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- What does patent US2016169241A1 cover?
- A compressor includes a rotor rotating about an axis thereof; a rotor casing surrounding the rotor from an outer circumferential side of the rotor and forming a main flow passage of a fluid between the rotor; an extraction-chamber casing provided at an outer circumferential side of the rotor casing, and forming an extraction chamber that communicates with the main flow passage between the rotor…
- Who is the assignee on this patent?
- Mitsubishi Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification F04D27/023. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jun 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).