Title:
MULTI-PIECE IMPELLER
Document Type and Number:
WIPO Patent Application WO/2014/163702
Kind Code:
A3
Abstract:
An impeller includes a shell having a plurality of blades. The shell may also define a cavity. The impeller may further include a backplate that engages at least a portion of the shell. The backplate can include a post which can be coupled to the impeller through a fastener such as a threaded nut. The backplate can be thereafter clamped to the impeller shell. Seals can be provided in the impeller, such as in the backplate. The backplate and impeller shell can be piloted onto each other. In some forms splines can be used to secure the backplate to the impeller shell.
Inventors:
LUNSFORD PATRICK L (US)
LACOMBE SAMUEL J (US)
LACOMBE SAMUEL J (US)
Application Number:
PCT/US2013/078204
Publication Date:
November 20, 2014
Filing Date:
December 30, 2013
Export Citation:
Assignee:
LUNSFORD PATRICK L (US)
LACOMBE SAMUEL J (US)
LACOMBE SAMUEL J (US)
International Classes:
F01D5/06; F01D5/04; F01D5/32
Domestic Patent References:
| WO2001040660A2 | 2001-06-07 |
Foreign References:
| US20070065276A1 | 2007-03-22 | |||
| EP0518027A1 | 1992-12-16 | |||
| EP0408010A1 | 1991-01-16 | |||
| US4152092A | 1979-05-01 |
Attorney, Agent or Firm:
SWEENEY II, James R. (11 South Meridian StreetIndianapolis, Indiana, US)
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