Controlled levitation vehicle
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0829462
(2001-04-09)
|
우선권정보 |
JP-0116139 (2000-04-18) |
발명자
/ 주소 |
- Miyazawa, Kazuhiro
- Kiyomoto, Koji
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
4 |
초록
▼
In a controlled levitation vehicle that has a levitation apparatus where multiple air pads are connected to the undersurface of a chassis that also doubles as a duct connected to a blower, and where damper valves are connected between the blower and chassis and to the chassis, it is furnished with:
In a controlled levitation vehicle that has a levitation apparatus where multiple air pads are connected to the undersurface of a chassis that also doubles as a duct connected to a blower, and where damper valves are connected between the blower and chassis and to the chassis, it is furnished with: a controller (S1, S2) that closes the damper valve between the blower and chassis when starting and that also regulates the frequency of the inverter to the standby frequency that is below the levitation frequency; the controller (S6, S7) also closing the chassis damper valve responsive to an instruction to levitate and also increasing the frequency from a standby frequency to a levitation frequency to cause the vehicle to levitate; and the controller also lowering (S9-S12) the frequency from the levitation frequency to the standby frequency upon an instruction to land and also opening the blower and chassis damper valves to stop the vehicle rapidly.
대표청구항
▼
In a controlled levitation vehicle that has a levitation apparatus where multiple air pads are connected to the undersurface of a chassis that also doubles as a duct connected to a blower, and where damper valves are connected between the blower and chassis and to the chassis, it is furnished with:
In a controlled levitation vehicle that has a levitation apparatus where multiple air pads are connected to the undersurface of a chassis that also doubles as a duct connected to a blower, and where damper valves are connected between the blower and chassis and to the chassis, it is furnished with: a controller (S1, S2) that closes the damper valve between the blower and chassis when starting and that also regulates the frequency of the inverter to the standby frequency that is below the levitation frequency; the controller (S6, S7) also closing the chassis damper valve responsive to an instruction to levitate and also increasing the frequency from a standby frequency to a levitation frequency to cause the vehicle to levitate; and the controller also lowering (S9-S12) the frequency from the levitation frequency to the standby frequency upon an instruction to land and also opening the blower and chassis damper valves to stop the vehicle rapidly. 1. A system for drilling a well bore, said well bore having a bottom, into a seabed from a drilling location, which comprises: a drilling fluid system for creating a column of drilling fluid above said bottom; an injection system for injecting substantially incompressible articles into said column at an injection point between said bottom and said drilling location, said incompressible articles having a density less than the density of said drilling fluid; and, a separation system for separating said incompressible articles from drilling fluid returned to said drilling location from said column, said separation system returning separated drilling fluid to said drilling fluid system and separated incompressible articles to said injection system. 2. The system as claimed in claim 1, wherein said injection system includes: a conduit connected between a surface location and said injection point. 3. The system as claimed in claim 2, wherein said injection system includes: means for injecting a slurry comprising a fluid and said substantially incompressible articles into said conduit at said surface location. 4. The system as claimed in claim 3, wherein said fluid of said slurry comprises a drilling fluid. 5. The system as claimed in claim 4, wherein said fluid of said slurry comprises substantially unweighted drilling fluid. 6. The system as claimed in claim 3, wherein said fluid of said slurry comprises water. 7. The system as claimed in claim 3, wherein said means for injecting said substantially incompressible articles includes: means for separating said substantially incompressible articles from said fluid of said slurry prior to injecting said substantially incompressible articles into said column; and, means for injecting separated substantially incompressible articles into said column. 8. The system as claimed in claim 7, including means for returning separated fluid to a surface location. 9. The system as claimed in claim 8, wherein said means for returning separated fluid to said surface location includes a return line. 10. The system as claimed in claim 9, wherein said means for returning separate fluid to said surface location includes means for lifting separated fluid in said return line. 11. The system as claimed in claim 7, wherein means for injecting said separated substantially incompressible articles into said column includes a pump. 12. The system as claimed in claim 7, wherein said means for separating said substantially incompressible articles includes a screen having a mesh size smaller than said substantially incompressible articles. 13. The system as claimed in claim 7, wherein said means for separating said substantially-incompressible articles includes: a vessel, said vessel being gas-pressurized to form a water-gas interface; a slurry inlet positioned in said vessel below said water-gas interface and coupled to said conduit; a water outlet positioned in said vessel below said water-gas interface; and, an article outlet positioned in said vessel above said water-gas interface and coupled to said injection point. 14. The system as claimed in claim 1, wherein said separation system includes: a screen device for separating said incompressible articles and drill cuttings from said drilling fluid. 15. The system as claimed in claim 14, wherein said screen device has a mesh size and said incompressible articles are larger than said mesh size. 16. The system as claimed in claim 14, wherein said separation system includes: an at least partially water-filled vessel positioned to receive said incompressible articles and said drill cuttings from said screen device. 17. The system as claimed in claim 14, wherein said screen device includes a shale shaker. 18. The system as claimed in claim 1, wherein a portion of said column is defined by a riser connecting a subsea wellhead and a surface location and said injection point is positioned in said riser adjacent said wellhead. 19. T
이 특허에 인용된 특허 (4)
-
Tattersall Edward G. (Southampton GB2), Fluid flow control systems.
-
Witt Hans (Ziegeleiweg 38 25 421 Pinneberg DEX) Witt Henrik (Ziegeleiweg 38 25 421 Pinneberg DEX) Witt Karsten (Rissener Landstrasse 253 22 559 Hamburg DEX), Hovercraft and process of regulating air cushion.
-
Michels Hartwig (Nuremberg DEX) Klingler Knud (Nuremberg DEX), Proportional pneumatic control system for aircushions.
-
Hatanaka Takefumi,JPX, Vehicle driving method and hybrid vehicle propulsion system.
이 특허를 인용한 특허 (2)
-
Dalrymple, David, Evacuated tube transport system.
-
Dalrymple, David, Evacuated tube transport system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.