Title:
TURBOPUMP MACHINE WITH ISOLATED COOLING PASSAGE DISCHARGE
Document Type and Number:
WIPO Patent Application WO/2016/118208
Kind Code:
A3
Abstract:
A turbopump machine includes a housing, a shaft rotatably supported in the housing on a set of bearings, an axial pump coupled with the shaft, a circumferential discharge volute fluidly coupled with the axial pump, and a turbine coupled with the shaft. The turbine includes a blade row disposed in an axial turbine flowpath that has an axial turbine flowpath discharge that is fluidly coupled with the circumferential discharge volute. A cooling passage is disposed between the housing and the shaft about the set of bearings. The cooling passage has a cooling passage discharge that is fluidly coupled with the circumferential discharge volute. The cooling passage discharge is adjacent the axial turbine flowpath discharge. A seal isolates the cooling passage discharge from the axial turbine flowpath discharge.
Inventors:
PHUI KHIN (US)
CHILCOAT THADDEUS (US)
CHILCOAT THADDEUS (US)
Application Number:
PCT/US2015/059173
Publication Date:
September 09, 2016
Filing Date:
November 05, 2015
Export Citation:
Assignee:
AEROJET ROCKETDYNE INC (US)
International Classes:
F04D13/04; F02K9/48; F04D29/046; F04D29/08; F04D29/42; F04D29/52; F04D29/58
Foreign References:
| US5197851A | 1993-03-30 | |||
| RU2106534C1 | 1998-03-10 | |||
| US7828511B1 | 2010-11-09 |
Attorney, Agent or Firm:
KOZIARZ, Matthew L. (Gaskey & Olds P.C.,400 W. Maple, Suite 35, Birmingham Michigan, US)
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