Title:
SHAFT SEALS AND BURNER LOOPS
Document Type and Number:
WIPO Patent Application WO/2012/042272
Kind Code:
A3
Abstract:
A thermal machine is configured as a Stirling engine and has an output shaft (11) rotatably mounted in a casing (13) together with a seal arrangement (10) for the shaft including two lip seals (16,17) confronting each other and mounted in a housing (23) in the casing, to surround the shaft. The machine has a source (24,25) of lubricating oil which is supplied to the housing between the two lip seals, at a greater pressure than that prevailing within the casing. The machine has a heat exchanger (35) to supply heat to a hot piston-and-cylinder combination, that heat exchanger being supplied with hot gases from a combustion chamber (34) in which a hydrocarbon fuel is burnt. A compressor (30) drives combustion air into the chamber (34), the compressor (30) being driven by a turbine (31) receiving the hot gases following their passage through the heat exchanger (35).
Inventors:
OSBORNE GRAHAM W (GB)
Application Number:
PCT/GB2011/051857
Publication Date:
July 05, 2012
Filing Date:
September 30, 2011
Export Citation:
Assignee:
OSBORNE GRAHAM W (GB)
International Classes:
F02G1/053; F01K23/06; F02C6/18; F16J15/00; F16J15/16; F16J15/32; F16J15/46
Foreign References:
| US4448425A | 1984-05-15 | |||
| US5697710A | 1997-12-16 | |||
| DE9014461U1 | 1993-03-11 | |||
| DE2450033A1 | 1976-04-29 | |||
| US20040020206A1 | 2004-02-05 | |||
| GB1387255A | 1975-03-12 | |||
| GB764221A | 1956-12-19 | |||
| US5005349A | 1991-04-09 |
Attorney, Agent or Firm:
GILLAM, Francis et al. (34 East Stockwell StreetColchester, Essex CO1 1ST, GB)
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