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Publication Title | Ulllted States Patent Bladon et a]. AIRTHRUSTBEARINGFORAGAS TURBINE ENGINE

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Search Completed | Title | Ulllted States Patent Bladon et a]. AIRTHRUSTBEARINGFORAGAS TURBINE ENGINE
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Text | Ulllted States Patent Bladon et a]. AIRTHRUSTBEARINGFORAGAS TURBINE ENGINE | 001



(12)Ulllted States Patent Bladon et a].

(54) AIRTHRUSTBEARINGFORAGAS TURBINE ENGINE

(75) Inventors: ChristopherGeorgeBladon,Ellesmere (GB); Paul Douglas Bladon, Ellesmere

(10)PatentN0.: US 7,703,290B2 (45) Date of Patent: Apr. 27, 2010

(52) US.Cl...60/804;60/785;415/107

(58) FieldofClassi?cationSearch .. 60/785,

(73) Assignee:

(*) Notice:

_

(21) Appl' No"

(22) PCTFiled?

(86) PCTNo.:

§ 371 (OX1),

2,746,671 A * 5/1956 Newcomb . 2,926,050 A * 2/1960 Battle ........... 4,838,710 A * 6/1989 Ohm eta1~

415/115 415/104 334/100

as

k D Qi

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14

(GB); Heather Elizabeth Bladon, legal representative,Ellesmere(GB)

Bladon Jets (UK) Limited, Ellesmere (GB)

Subject to any disclaimer, the term ofthis pUa'tSe'nCt'i1s54e(x1)t)enbdyed41o4rdadysj‘ustedunder35

10546383 Feb-26,2004 PCT/GB2004/000756

(56)

60/804; 415/104,106,107 Seeapplication?leforCompleteSearchhistory

_ References Clted

Us‘ PATENT DOCUMENTS

2,399,046 A * 4/1946 Larrecq .. 60/785

(2),(4)Date: Aug‘18’2006 (87) PCTPubNO_W02004/076821

PCT Pub.Date: Sep.10,2004

(65) PriorPublicationData

US 2007/0039330A1 Feb.22,2007 (30) ForeignApplicationPriorityData

* cited by examiner

PrimaryExamineriTedKim (74)Attorney,Agent,orFirm4Ober/Kaler;RoyalW.Craig

(57) ABSTRACT

A gasturbineenginecomprisesarotarycompressor(6)Which

is subject to forward thrust forces and is mounted on an axial

shaft(50)WhichhasaforWardfacingsurface(67)locatedin

athrustbearing(52).Ableedofairunderpressure(70,74,78)

isprovidedfromthecompressortothethrustbearingtoform

anaircushion(66,68)opposingtheforWardthrustofthe compressortransmittedbytheshaft.Theaircushionpressure

automaticallyincreasesWithenginespeed.Otheraircushion bearings(54,56)arealsoprovidedalongtheshaft.

Feb 26 2003 i ’

(51) IntCL F02C 9/18

F16C 32/00 F 01D 25/16

(GB)

03043205 '

70 76

72

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(200601)

(2006.01) (2006.01)

19 Claims, 1 Drawing Sheet

7° 22 32 2" 3s 3a 1.2

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4'!‘

1. 16

1L G 26 9b a‘.5232 v

12/-a2 90f“30 \g a.’‘\

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56

16

6

10

JP

6,286,303Bi1*i 9/2001 Pg?o0isgileyre;tal.:.. .60/805

6,455,964 B1* 9/2002 Nims ................. 310/90 6,494,620 B1* 12/2002 Sawaguchieta1...384/107

FOREIGNPATENTDOCUMENTS 06-264769 * 9/1994

86

US007703290B2

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