[특허]Rapid transit system

[미국특허] Rapid transit system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B61B-013/10
출원번호	US-0466609 (1974-05-03)
발명자 / 주소	Minovitch Michael A. (Los Angeles CA)
출원인 / 주소	Gravity Transit Company (Los Angeles CA 02)
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

A rapid transit system in which a vehicle, typically comprising a train of detachably coupled cars, is suspended in an underground vacuum tunnel by permanent magnetic rails of high coercivity and propelled by gravity. For closely spaced stations, such as in urban areas, the connecting tunnel paths are smooth continuous curves, lying essentially in the vertical planes connecting adjacent stations. For widely separated stations, such as in inter-city transit systems, the tunnel paths have horizontal reaches at their maximum depth, joined at the ends by smooth paths which arc up towards each station. The magnetic suspension and the vacuum environment enables the vehicle to move frictionlessly at high speeds without contacting the rails or any other part of the tunnel. Gravity propulsion from one station to the next is accomplished by allowing the vehicle to move frictionlessly down the decending arc of the tunnel, during which time it is accelerated by gravity, and decelerating by gravitational braking while moving along the tunnel\s ascending arc. Thus, the trip is accomplished by transforming the vehicle\s gravitational potential energy into kinetic energy and back into gravitational potential energy. Excess kinetic energy arising from moving between stations having different elevations is supplied or absorbed by onboard linear motor/generators that provide supplementary propulsion or regenerative braking. These linear motor/generators draw and return energy to on-board flywheel energy storage units. While moving along very long straight tunnel paths the vehicle\s gravitational coasting speed is boosted by flywheel energy which is recovered by regenerative braking. Since the motion is essentially without friction and since the linear motor/generator-flywheel motor/alternator system can be designed with very high efficiencies, the principle of conservation of energy applies and very little input energy is required. In the ideal case, no input energy would be required since the vehicle\s total energy remains constant even while moving between two stations at high speed. When the vehicle is at rest at stations having different elevations, the differences in its gravitational potential energy are balanced essentially by equal differences in its stored flywheel inertial energy. Except for a small amount of electrical energy expended for life support systems and to make up for losses due to energy conversion inefficiences, no energy is used or required for the actual trips between stations.

대표청구항 ▼

A rapid transit system comprIsing: a plurality of stations; tunnels extending underground between adjacent stations of said system; means for evacuating and maintaining vacuum in said tunnels; a plurality of magnetic rails composed of permanent magnets of high coercivity extending along the full length of the tunnel; a vehicle in the tunnel; a plurality of magnetic rails composed of permanent magnets of high coercivity extending lengthwise on the vehicle for levitating the vehicle above the tunnel\s magnetic rails by magnetic repulsion so that no part of the vehicle is in physical contact with any part of the tunnel when it is moving between stations; permanent magnet guidance rail means extending along the tunnel; self-stabilizing, permanent magnet guide means on the vehicle in repelling spaced relationship with the guidance rail means for maintaining the vehicle\s levitating magnetic rails properly aligned over the tunnel\s levitating magnetic rails; said vehicle being propelled essentially entirely by gravity when moving from one station to another station at equal elevations where acceleration propulsion is obtained by coasting down one sloping arc of the vacuum tunnel, thereby converting gravitational potential energy into kinetic energy, and where deceleration is obtained by coasting up another sloping arc of the tunnel, thereby converting kinetic energy back into gravitational potential energy to be used later for making the next trip; means for starting and stopping said vehicle in the immediate vicinity of each station; and an air lock at each station through the vacuum tunnel to allow passage between a station and the interior of the vehicle when stopped at the station without removing the vacuum environment from the tunnel surrounding the vehicle at the station.

이 특허를 인용한 특허 (28) 인용/피인용 타임라인 분석

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Jetti, Sandhya Rani; O'Neal, George; Bahrami, Nima; Dorris, James; Liang, Jiaqi; Bambrogan, Brogan; Giegel, Joshua, Dynamic linear stator segment control.
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Powell,James Russell, Electrical power storage and delivery using magnetic levitation technology.
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Cothern, Kyle; Gaunt, Michael; Ronacher, Thomas; Shafrir, Daniel; Bambrogan, Brogan; Giegel, Joshua, Gate valves and airlocks for a transportation system.
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Cothern, Kyle; Gaunt, Michael; Ronacher, Thomas; Shafrir, Daniel; Bambrogan, Brogan; Giegel, Joshua, Gate valves and airlocks for a transportation system.
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Abboud Robert G., High performance magnetic bearing systems using high temperature superconductors.
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Minovitch Michael A. (2832 St. George St. Apt. 6 Los Angeles CA 90027), High speed transit system.
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Diggs Richard E. (S. 12A Road ; P.O. Box 776 Carthage MO 64836), High-speed ground transportation system.
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Bratkovski, Alexandre M.; Kopelevitch, Iakov V., Inertial sensing system with a curved base and a diamagnetic mass.
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Coutre, James T.; Giegel, Joshua; Bambrogan, Brogan; Finodeyev, Filip; Handmer, Casey; Dehaan, David, Low-pressure environment structures.
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Coutre, James T.; Handmer, Casey; Bambrogan, Brogan; Giegel, Joshua; Finodeyev, Filip, Low-pressure environment structures.
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Totsch John W. (R.R. 1 Box 1484A Sheldon VT 05483), Magnetic conveyor system for transporting wafers.
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Jean-Claude Alacoque FR; Mazen Alamir FR, Method and a system for locating a vehicle on a track.
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Sawyer Elbert Morgan (Box 30602 Santa Barbara CA 93105), Personal rapid transit system.
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Flynn, Patrick Joseph, Pneumatic mass transportation system.
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Finodeyev, Filip; Giegel, Joshua; Bambrogan, Brogan; O'Neal, George; Hosseini, Kaveh, Power supply system and method for a movable vehicle within a structure.
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Makoto Okano JP; Noriharu Tamada JP, Superconductive magnetic levitation transportation system.
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Richards,Bryan, Transit system.
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Bambrogan, Brogan; Giegel, Joshua, Transportation system.
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Bambrogan, Brogan; Giegel, Joshua, Transportation system.
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Bambrogan, Brogan; Giegel, Joshua, Transportation system.
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Yang, Nanzheng, Tube car, network of tubes, personal transport system, and control system and control method thereof.
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Augenreich Klaus (Wedel DEX) Ropelius Klaus (Hamburg DEX) Poppenhusen Conrad (Hamburg DEX) Hering Norbert (Ratingen DEX) Thomas Robert (Kaarst DEX) Bauer Peter (Hamburg DEX), Tube-type product conveyor apparatus.
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Kwon, Sam-Young; Kim, Hyung-Chul; Jang, Dong-Wook; Cho, Yong-Hyeon; Lee, Hyung-Woo; Park, Chan Bae, Vacuum division management system and vacuum blocking screen device for tube railway system.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Rapid transit system 원문보기

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