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Publication Title | United States Patent Lubell et al. ROTOR AND BEARING SYSTEM FOR A TURBOMACHINE

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Text | United States Patent Lubell et al. ROTOR AND BEARING SYSTEM FOR A TURBOMACHINE | 001



(12)United States Patent Lubell et al.

(54) ROTOR AND BEARING SYSTEM FOR A TURBOMACHINE

(75) InventorsiDanielLubell,Northlidge,CA(Us); DelllllsWelssert,$11111Valley,CA(Us)

___ (73) Asslgnee: (cjgptstonftgucrgngscorporatlon’

aSW0 ’ ( )

(*) I\IOtiCeZ Subjecttoanydisclaimer,thetennofthis patent is extended or adjusted under 35

U_S_C_ 154(1)) by 0 days_ (21) Appl.N0.:10/862,136

(22) F1led: Jun.4,2004

(10)Patent N0.: US 7,112,036 B2 (45) Date of Patent: Sep. 26, 2006

5,697,848 A 12/1997 Bosley .. 464/98 5,752,380 A 5/1998 Bosleyeta1. 60/39.281 5,791,868 A * 8/1998 Bosley et a1. .............. 415/104 5,827,040A * 10/1998 Bosleyeta1...415/106

(65)

PriorPublicationData

Us 2005/0089392 A1 Apr‘ 28’ 2005 US

Related US. Application Data

(Continued) FOREIGN PATENT DOCUMENTS

2002/0054718 5/2002 ..384/104

(60) ProvisionalapplicationNo.60/515,078,?ledonOct. 28,2003,provisionalapplicationNo.60/559,378, PrlmaryExammeriNmh Nguyen

?led on Apt 2 2004' ’

(51) Int.Cl. F01D 3/04

F01D 15/10

(2006.01) (2006.01)

(52) us Cl'""""""""""" 4411534411515

58 F M fCl _? _ s h ’ ’415/104 machineincludesadriveshaft,animpellerpositionedonthe ( ) 1e 0 4lg/slsé7cgggnrezig/l 417/407’ drive shaft, and a turbine positioned on the drive shaft

(56)

’ ’ ’ 417/’410 i 411 365’ S 1,_?lf 1 h1'1,’’

eeapplcanon e orCompeteSeam lstory' References Cited

US PATENTDOCUMENTS

proximatetotheimpeller.Thebearingsystemcomprisesone gas journal bearing supporting the drive shaft between the impellerandtheturbine.Theareabetweentheimpellerand

the turbine is an area of increased heat along the drive shaft in comparison to other locations along the drive shaft. The sectionofthedriveshaftpositionedbetweenimpellerand

theturbineisalsoasectionofthedriveshaftthatexperi ences increased stressed and load in the turbomachine. The inventive bearing machine System Positions only one radial bearing in this area of increased Stress and load'

20 Claims, 5 Drawing Sheets

40,4

4808070A * Z1989 FondaBonardi

5’l02’305 A * 4/l992 Bescoby et a1 """"" " 417/407 534273455 A 6/1995 Bosley . 384/106 5 497 615 A * 3/1996 N06 et a1. .. 60/39.511 5,529,398 A 6/1996 Bosley ......................384/105 5,685,156 A 11/1997 Willis et a1. .. 60/723

l1

l2

13j 244838 26

|_ _| l— /1

6,2/ 5216,18/ 5071

415/110

48

5,915,841 A 5,918,985 A 5,964,663 A 6,037,687 A

6,094,799 A 6,158,892 A 6,190,048 B1 RE38,373 E

6/1999 Weissert ..

7/1999 Bosley et a1. 10/1999 Stewarteta1.

384/104 . 384/106

US007112036B2

464/98 3/2000 Stewart et a1. ............... 310/75

8/2000 Stewart61 ..29/525 12/2000 Stewarteta1. 384/105 2/2001 Weissert ..384/103 12/2003 Bosley ......................384/106

_

(74) Attorney, Agent, or FzrmiWaddey & Patterson, P.C.; Lucian Wayne Beavers; Phillip E. Walker

(57) ABSTRACT

Arotorandbearingsystemforaturbomachine.Theturbo

_ _

Image | United States Patent Lubell et al. ROTOR AND BEARING SYSTEM FOR A TURBOMACHINE



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