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특허 상세정보

Gearless/oilless gas turbine engine

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01D-025/16   
미국특허분류(USC) 415/104; 415/229; 415/230
출원번호 US-0631946 (2003-07-30)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 11  인용 특허 : 21

The complex mechanical gear trains and lubrication systems of conventional engine configurations are eliminated by using combinations of hydrodynamic air foil bearings, hydrodynamic solid geometry carbon seals/bearings, magnetic bearings, and electrical starter/generators that can also act as bearings to support the high speed shafts of gas turbine engines. The various bearing types and the starter/generators are arranged in such a way as to share peak loads experienced by the engine shaft during maximum aircraft maneuvers. This results in a minimal bear...


1. A rotor comprising:at least a first rotor; an air foil bearing supporting a first end of said first rotor; and a hydrodynamic carbon bearing/seal providing additional support to said first rotor and sealing a bearing compartment of said air foil bearing, thereby allowing an increased internal operating pressure of said air foil bearing, and hence, increased load capacity of said air foil bearing, as compared to said air foil bearing without said hydrodynamic carbon bearing/seal. 2. The rotor according to claim 1, wherein said hydrodynamic carbon beari...

이 특허에 인용된 특허 (21)

  1. Soh Jemeng ; Chen Robert ; Kuei Steve. Bi-metallic tie-bolt for microturbine power generating system. USP2001086276124.
  2. Nims Robert A.. Dual turbogenerator auxiliary power system. USP1998095799484.
  3. Lahrman Kenneth A. (Maineville OH). Fluid bearing face seal for gas turbine engines. USP1992125174584.
  4. Skowronski Mark J.. Fog cycle for microturbine power generating system. USP2001096294842.
  5. Geary ; Jr. Carl H. (Greensburg PA). Gas lift bearing and oil seal. USP1983094406466.
  6. Ian C D Care GB; Arnold C Newton GB. Gas turbine engine bearing arrangement. USP2002046378293.
  7. Ress ; Jr. Robert Anthony ; Henry Mark Stephen. High speed magnetic thrust disk. USP2001056232688.
  8. Henry Mark S. ; King Brian P.. High speed, high temperature hybrid magnetic thrust bearing. USP1998055749700.
  9. Pfligler John J. ; Larson Carl A. ; Cunnington George R.. Impingement cooled foil bearings in a gas turbine engine. USP2001096286303.
  10. Delamare Jerome,FRX. Magnetofluidic suspension turbine. USP1999045893517.
  11. Nims Robert A.. Microturbine cooling system. USP2001066246138.
  12. Robert A. Nims. Microturbine cooling system. USP2002096455964.
  13. Nims Robert A. ; Denk Joseph ; Doshi Ramesh ; Emerson Terence. Microturbine power generating system. USP2001106307278.
  14. Nims Robert A. ; O'Brien Patrick Lee ; Emerson Terrence. Microturbine power generating system. USP2001036198174.
  15. Robert Anthony Ress, Jr. ; Mark Stephen Henry. Pressure-assisted electromagnetic thrust bearing. USP2002046367241.
  16. Sharp John,DEX. Rotating assembly and support therefor. USP2001066249070.
  17. Stein ; Philip C.. Seal for sealing between a rotating member and a housing. USP1978044082296.
  18. Skowronski Mark J. ; Prophet Tony. Single shaft microturbine power generating system including turbocompressor and auxiliary recuperator. USP2001016170251.
  19. Domberg Daniel ; Katsumata Shin. Stress relief in a magnetic thrust bearing. USP2000056057619.
  20. Glaser Jerry (Playa del Rey CA) Bescoby Frank A. (Rancho Palos Verdes CA). Thermal isolation system for turbochargers and like machines. USP1988024725206.
  21. Bridges, Eric B.. Touchdown bearing assembly with actuator ring assembly. USP2003026524005.