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Title:
FLUID-WORKING MACHINE AND METHOD OF OPERATING A FLUID-WORKING MACHINE
Document Type and Number:
WIPO Patent Application WO/2011/104549
Kind Code:
A3
Abstract:
A method of operating a fluid-working machine having a plurality of working chambers of cyclically varying volume in which each working chamber is operable to displace a volume of working fluid which is selectable for each cycle of working chamber volume. The volume of working fluid displaced during each cycle of working chamber volume, to carry out a working function, is selected taking into account the availability of other working chambers. The status of each working chamber is monitored and a working chamber treated as unavailable if it is found to be malfunctioning. A working chamber may be treated as unavailable to carry out a working function if it is allocated to an alternative working function. A fault may be detected in a working chamber of a fluid-working machine having working chambers operable to displace a volume of working fluid which is selectable for each cycle of working chamber volume to carry out a working function responsive to a received demand signal, by determining whether a measured output parameter of the fluid working machine fulfils at least one acceptable function criterion taking into account the previously selected net displacement of working fluid by a working chamber during a cycle of working chamber volume to carry out the working function.

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JPH04228878PRESSURIZED FLUID MACHINE
Inventors:
RAMPEN WILLIAM HUGH SALVIN (GB)
CALDWELL NIALL JAMES (GB)
LAIRD STEPHEN MICHAEL (GB)
Application Number:
PCT/GB2011/050360
Publication Date:
July 11, 2013
Filing Date:
February 23, 2011
Export Citation:
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Assignee:
ARTEMIS INTELLIGENT POWER LTD (GB)
RAMPEN WILLIAM HUGH SALVIN (GB)
CALDWELL NIALL JAMES (GB)
LAIRD STEPHEN MICHAEL (GB)
International Classes:
F04B7/00; F04B51/00; F04B53/10; G16Z99/00
Domestic Patent References:
WO2009153605A12009-12-23
Foreign References:
GB2459520A2009-10-28
US6478547B12002-11-12
EP1319836A22003-06-18
Attorney, Agent or Firm:
HINDLE, Alistair Andrew (66 Hanover Street, Edinburgh EH2 1EL, GB)
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