JP2014111905A5 - - Google Patents
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- JP2014111905A5 JP2014111905A5 JP2012266274A JP2012266274A JP2014111905A5 JP 2014111905 A5 JP2014111905 A5 JP 2014111905A5 JP 2012266274 A JP2012266274 A JP 2012266274A JP 2012266274 A JP2012266274 A JP 2012266274A JP 2014111905 A5 JP2014111905 A5 JP 2014111905A5
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- JP
- Japan
- Prior art keywords
- impeller
- labyrinth
- centrifugal compressor
- axis
- cooling medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000003027 Ear, Inner Anatomy 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 3
- 230000002093 peripheral Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
Description
上記課題を解決するために、本発明の遠心圧縮機およびこれを備えた過給機ならびに遠心圧縮機の運転方法は、以下の手段を採用する。
すなわち、本発明にかかる遠心圧縮機は、軸線回りに回転する羽根車と、該羽根車の背面側に位置する壁部と該羽根車の背面との間で、該羽根車の外周部から該羽根車の該背面に入り込む空気をシールするラビリンスシール部と、を備えた遠心圧縮機において、前記ラビリンスシール部は、前記軸線を中心とする複数の円周溝とされたラビリンス溝を有し、複数の前記ラビリンス溝の少なくとも１つには、冷却媒体を流通させる冷却穴が接続されていることを特徴とする。
In order to solve the above problems, the centrifugal compressor of the present invention, the supercharger equipped with the centrifugal compressor, and the operation method of the centrifugal compressor employ the following means.
That is, the centrifugal compressor according to the present invention includes an impeller that rotates around an axis, a wall portion that is located on the back side of the impeller, and a back surface of the impeller from the outer peripheral portion of the impeller. A labyrinth seal portion that seals air that enters the back surface of the impeller, and the labyrinth seal portion includes a plurality of circumferential grooves centering on the axis, A cooling hole for circulating a cooling medium is connected to at least one of the plurality of labyrinth grooves.
また、本発明の遠心圧縮機の運転方法は、排気タービンの回転により軸線回りに羽根車が回転する羽根車回転工程と、前記羽根車の外周部から該羽根車の背面に入り込む空気を該羽根車の該背面でシールするラビリンスシール部に設けられた前記軸線を中心とする複数の円周溝とされたラビリンス溝の少なくとも１つに冷却媒体を流通させる冷却媒体流通工程と、を備えたことを特徴とする。 Further, a method of operating a centrifugal compressor of the present invention, an impeller rotation step of the impeller is rotated around the axis by the rotation of the exhaust turbine, the blade of air that enters the back of the impeller from the outer periphery of the impeller further comprising a cooling medium circulating step of circulating the cooling medium more in at least one circumferential groove and the labyrinth groove centered on the axis provided in the labyrinth seal portion which seals in a car the rear It is characterized by.
Claims (4)
該羽根車の背面側に位置する壁部と該羽根車の背面との間で、該羽根車の外周部から該羽根車の該背面に入り込む空気をシールするラビリンスシール部と、
を備えた遠心圧縮機において、
前記ラビリンスシール部は、前記軸線を中心とする複数の円周溝とされたラビリンス溝を有し、
複数の前記ラビリンス溝のうち、最外周側のラビリンス溝に、冷却媒体を流通させる冷却穴が接続されていることを特徴とする遠心圧縮機。 An impeller that rotates about an axis;
A labyrinth seal portion that seals air that enters the back surface of the impeller from the outer peripheral portion of the impeller, between a wall portion located on the back side of the impeller and the back surface of the impeller ;
In a centrifugal compressor with
The labyrinth seal part has a labyrinth groove that is a plurality of circumferential grooves around the axis,
Among the plurality of labyrinth grooves, a cooling hole for circulating a cooling medium is connected to the outermost labyrinth groove .
前記冷却穴は、前回環状空間と前記ラビリンス溝とを接続するように、それぞれが離間した状態で複数形成されていることを特徴とする請求項１に記載の遠心圧縮機。 On the back side of the labyrinth seal portion, an annular space through which the cooling medium flows is crotched,
2. The centrifugal compressor according to claim 1, wherein a plurality of the cooling holes are formed in a separated state so as to connect the annular space and the labyrinth groove last time.
該遠心圧縮機を駆動する排気タービンと、
を備えていることを特徴とする過給機。 The centrifugal compressor according to claim 1 or 2 ,
An exhaust turbine for driving the centrifugal compressor;
A turbocharger characterized by comprising:
前記羽根車の外周部から該羽根車の背面に入り込む空気を該羽根車の該背面でシールするラビリンスシール部に設けられた前記軸線を中心とする複数の円周溝とされたラビリンス溝のうち、最外周側のラビリンス溝に冷却媒体を流通させる冷却媒体流通工程と、
を備えたことを特徴とする遠心圧縮機の運転方法。 A impeller rotation process in which an impeller rotates around an axis by rotation of an exhaust turbine;
Of the labyrinth grooves air entering the back of the impeller from the outer peripheral portion is a plurality of circumferential grooves around the axis provided in the labyrinth seal portion for sealing at the back of said impeller of said impeller A cooling medium distribution step for circulating the cooling medium in the labyrinth groove on the outermost periphery side ;
A method for operating a centrifugal compressor, comprising:
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012266274A JP2014111905A (en) | 2012-12-05 | 2012-12-05 | Centrifugal compressor and supercharger with the same, and operation method for centrifugal compressor |
| KR1020157014736A KR20150081342A (en) | 2012-12-05 | 2013-12-02 | Centrifugal compressor, supercharger with same, and method for operating centrifugal compressor |
| CN201380063139.4A CN104903586A (en) | 2012-12-05 | 2013-12-02 | Centrifugal compressor, supercharger with same, and method for operating centrifugal compressor |
| EP13861290.8A EP2930370A4 (en) | 2012-12-05 | 2013-12-02 | Centrifugal compressor, supercharger with same, and method for operating centrifugal compressor |
| PCT/JP2013/082346 WO2014087966A1 (en) | 2012-12-05 | 2013-12-02 | Centrifugal compressor, supercharger with same, and method for operating centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012266274A JP2014111905A (en) | 2012-12-05 | 2012-12-05 | Centrifugal compressor and supercharger with the same, and operation method for centrifugal compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2014111905A JP2014111905A (en) | 2014-06-19 |
| JP2014111905A5 true JP2014111905A5 (en) | 2015-08-06 |
Family
ID=50883383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012266274A Pending JP2014111905A (en) | 2012-12-05 | 2012-12-05 | Centrifugal compressor and supercharger with the same, and operation method for centrifugal compressor |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2930370A4 (en) |
| JP (1) | JP2014111905A (en) |
| KR (1) | KR20150081342A (en) |
| CN (1) | CN104903586A (en) |
| WO (1) | WO2014087966A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6404087B2 (en) * | 2014-11-05 | 2018-10-10 | 三菱重工業株式会社 | Centrifugal compressor and supercharger provided with the same |
| DE102014226951A1 (en) | 2014-12-23 | 2016-06-23 | Robert Bosch Gmbh | turbomachinery |
| JP6147777B2 (en) * | 2015-01-26 | 2017-06-14 | 三菱重工業株式会社 | Intake rectifier, compressor provided with the same |
| JP6382120B2 (en) * | 2015-01-26 | 2018-08-29 | 三菱重工業株式会社 | Exhaust turbine turbocharger |
| JP6246847B2 (en) | 2016-02-22 | 2017-12-13 | 三菱重工業株式会社 | Impeller back cooling structure and turbocharger |
| CN110671157A (en) * | 2019-11-22 | 2020-01-10 | 东方电气集团东方汽轮机有限公司 | Radial steam seal structure for radial turbine and radial turbine |
| JP7105823B2 (en) * | 2020-02-28 | 2022-07-25 | 三菱重工マリンマシナリ株式会社 | supercharger |
| CN117083451A (en) | 2021-04-01 | 2023-11-17 | 三菱重工船用机械株式会社 | Supercharger |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2934530B2 (en) | 1991-06-14 | 1999-08-16 | 三菱重工業株式会社 | Centrifugal compressor |
| EP0961034B1 (en) | 1998-05-25 | 2003-09-03 | ABB Turbo Systems AG | Radial compressor |
| JP2008045425A (en) * | 2006-08-11 | 2008-02-28 | Mitsubishi Heavy Ind Ltd | Centrifugal compressor |
| DE102006048784A1 (en) * | 2006-10-12 | 2008-04-17 | Man Diesel Se | Compressor for a turbocharger and method for its cooling |
| EP2067999A1 (en) * | 2007-12-06 | 2009-06-10 | Napier Turbochargers Limited | Liquid cooled turbocharger impeller and method for cooling an impeller |
-
2012
- 2012-12-05 JP JP2012266274A patent/JP2014111905A/en active Pending
-
2013
- 2013-12-02 EP EP13861290.8A patent/EP2930370A4/en not_active Withdrawn
- 2013-12-02 KR KR1020157014736A patent/KR20150081342A/en active Search and Examination
- 2013-12-02 CN CN201380063139.4A patent/CN104903586A/en active Pending
- 2013-12-02 WO PCT/JP2013/082346 patent/WO2014087966A1/en active Application Filing
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