Title:
STIRLING CYCLE MACHINE
Document Type and Number:
WIPO Patent Application WO/2011/020988
Kind Code:
A3
Abstract:
An alpha configuration Stirling cycle engine in which the expansion piston drives a linear electrical generator, part of whose output is phase adjusted and fed back to power a linear electrical motor driving the compressor. The phase adjustment is achieved by passive electrical components and/or active feedback circuits. The components of the engine are arranged in a linear configuration which allows the provision of gas springs on each end of the assembly, one attached to the compression piston and one attached to the expansion piston. The provision of gas springs allows an increase in spring constant and thus an increase in operating frequency. Either or both of the motor and generator can be provided with two sets of windings. In the generator the use of two sets of windings allows the feedback to be separate from the output power of the machine. In the motor driving the compressor the two sets of windings allows the provision of a control input power.
Inventors:
DADD MICHAEL WILLIAM (GB)
Application Number:
PCT/GB2010/001483
Publication Date:
May 19, 2011
Filing Date:
August 05, 2010
Export Citation:
Assignee:
ISIS INNOVATION (GB)
DADD MICHAEL WILLIAM (GB)
DADD MICHAEL WILLIAM (GB)
International Classes:
F02G1/043; F02G1/044
Domestic Patent References:
| WO2009103955A2 | 2009-08-27 |
Foreign References:
| US5329768A | 1994-07-19 | |||
| JP2000136753A | 2000-05-16 |
Attorney, Agent or Firm:
NICHOLLS, Michael John et al. (14 South SquareGray's Inn, London WC1R 5JJ, GB)
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