Turbocompressor assembly with a cooling system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F04B-039/02
F04B-035/04
H02K-005/16
출원번호
US-0382305
(2010-06-22)
등록번호
US-8801398
(2014-08-12)
우선권정보
EP-09009104 (2009-07-13)
국제출원번호
PCT/EP2010/058760
(2010-06-22)
§371/§102 date
20120105
(20120105)
국제공개번호
WO2011/006736
(2011-01-20)
발명자
/ 주소
Korenblik, Gerard
출원인 / 주소
Siemens Aktiengesellschaft
인용정보
피인용 횟수 :
2인용 특허 :
4
초록▼
A turbocompressor assembly is provided, which is divided along a rotor axis into at least three sections. The three sections include a bearing section having an active magnetic bearing, a motor section including a motor having a stator arranged along the rotor axis, the stator enclosing a circumfere
A turbocompressor assembly is provided, which is divided along a rotor axis into at least three sections. The three sections include a bearing section having an active magnetic bearing, a motor section including a motor having a stator arranged along the rotor axis, the stator enclosing a circumferential motor gap formed between the stator and the rotor, and a compressor section having a compressor for compressing a cooling fluid. A gas-tight housing encloses the rotor, the bearing section, the motor section and the compressor section. A cooling system is provided having an inlet for supplying the pressurized cooling fluid to the bearing section and the motor section through a fluid channel positioned between the bearing section and the motor section. The cooling system includes a throttling device positioned adjacent to the motor gap for limiting the flow of cooling fluid from the fluid channel to the motor gap.
대표청구항▼
1. A turbocompressor assembly, the turbocompressor assembly being divided along an axis of a rotor into at least three sections, the at least three sections comprising: a bearing section having at least one active magnetic bearing to support the rotor,a motor section comprising a motor having a stat
1. A turbocompressor assembly, the turbocompressor assembly being divided along an axis of a rotor into at least three sections, the at least three sections comprising: a bearing section having at least one active magnetic bearing to support the rotor,a motor section comprising a motor having a stator arranged along the axis of the rotor, wherein the stator encloses a circumferential motor gap which is formed between the stator and the rotor, anda compressor section having a compressor for compressing a cooling fluid;wherein the turbocompressor assembly further comprises:a common gas-tight housing enclosing the rotor, the bearing section, the motor section and the compressor section; anda cooling system having an inlet for supplying the pressurized cooling fluid to the bearing section and the motor section through a fluid channel positioned between the bearing section and the motor section, wherein the cooling system further comprises a throttling device positioned adjacent to the motor gap for limiting the flow of cooling fluid from the fluid channel to the motor gap,wherein the compressor section is arranged adjacent to the motor section, wherein the compressor section receives the cooling fluid from the motor gap and supplies a compressed cooling fluid to the bearing section and the motor section through the inlet. 2. The turbocompressor assembly according to claim 1, wherein the inlet includes a valve which is operable in response to the pressure of the cooling fluid for selectively varying the amount of pressurized cooling fluid to the bearing section and the motor section. 3. The turbocompressor assembly according to claim 1, wherein the inlet is disposed external to the gas-tight housing. 4. The turbocompressor assembly according to claim 1, wherein the turbocompressor assembly includes an additional bearing section comprising at least one active magnetic bearing. 5. A turbocompressor assembly, the turbocompressor assembly being divided along an axis of a rotor into at least three sections, the at least three sections comprising: a bearing section having at least one active magnetic bearing to support the rotor,a motor section comprising a motor having a stator arranged along the axis of the rotor, wherein the stator encloses a circumferential motor gap which is formed between the stator and the rotor, anda compressor section having a compressor for compressing a cooling fluid;wherein the turbocompressor assembly further comprises:a common gas-tight housing enclosing the rotor, the bearing section, the motor section and the compressor section; anda cooling system having an inlet for supplying the pressurized cooling fluid to the bearing section and the motor section through a fluid channel positioned between the bearing section and the motor section, wherein the cooling system further comprises a throttling device positioned adjacent to the motor gap for limiting the flow of cooling fluid from the fluid channel to the motor gap,wherein the cooling system further comprises a flow inlet for supplying the pressurized cooling fluid to a bearing gap in the bearing section in a direction opposite to the direction of supply of cooling fluid from the fluid inlet. 6. The turbocompressor assembly according to claim 5, wherein the passageway is formed in a radially extending portion of the bearing section and opening to the additional fluid channel. 7. A turbocompressor assembly, the turbocompressor assembly being divided along an axis of a rotor into at least three sections, the at least three sections comprising: a bearing section having at least one active magnetic bearing to support the rotor,a motor section comprising a motor having a stator arranged along the axis of the rotor, wherein the stator encloses a circumferential motor gap which is formed between the stator and the rotor, anda compressor section having a compressor for compressing a cooling fluid;wherein the turbocompressor assembly further comprises:a common gas-tight housing enclosing the rotor, the bearing section, the motor section and the compressor section; anda cooling system having an inlet for supplying the pressurized cooling fluid to the bearing section and the motor section through a fluid channel positioned between the bearing section and the motor section, wherein the cooling system further comprises a throttling device positioned adjacent to the motor gap for limiting the flow of cooling fluid from the fluid channel to the motor gap,wherein the cooling system further comprises:an additional inlet for supplying the pressurized cooling fluid to the motor gap through an additional fluid channel positioned between the bearing section and the motor section; anda fluid connection between the fluid channel and the motor gap; wherein the throttling device is positioned such that it limits the flow through the fluid connection. 8. The turbocompressor assembly according to claim 7, wherein the throttling device is positioned adjacent to an ingress for the cooling fluid flow to the motor gap. 9. The turbocompressor assembly according to claim 7, wherein the additional fluid channel is positioned adjacent to the motor section. 10. The turbocompressor assembly according to claim 7, wherein the fluid channel and the additional fluid channel are arranged as parallel pipes positioned between the bearing section and the motor section. 11. The turbocompressor assembly according to claim 7, wherein the cooling fluid surrounding a thrust disk flows outwards through a passageway in the bearing section to the additional fluid channel.
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이 특허에 인용된 특허 (4)
Denis Grob CH; Jean Claude Pradetto CH; Dominique Dessibourg CH, Cooling system for electromagnetic bearings of a turbocompressor.
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