Title:
IMPROVED CRYOGENIC ENGINE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/162692
Kind Code:
A3
Abstract:
The present invention provides a method of operating an engine (14) having one or more cylinders (16) each having a piston (18) within the cylinder (16) and each piston (18) having an expansion stroke and a return stroke and a top dead centre (TDC) position and a bottom dead centre position (BDC) and said engine (14) employing a working fluid (WF) and a heat exchange fluid (HEF), comprising the steps of: introducing the HEF during the return stroke of the engine; introducing the working fluid (WF) during the expansion stroke of the engine; causing the exhaust valve to be opened at or near bottom dead centre of the piston BDC; delivering the HEF to the cylinder (16) after the exhaust valve has been opened; and closing the exhaust valve before TDC, such as to allow the working fluid to be compressed by the piston within the cylinder. The invention also provides an engine (14) capable of being operated in accordance with the method.
Inventors:
DEARMAN PETER (GB)
DEARMAN MICHAEL (GB)
OLD DON (GB)
CLARKE HENRY (GB)
ZHAO DIFEI (GB)
DEARMAN MICHAEL (GB)
OLD DON (GB)
CLARKE HENRY (GB)
ZHAO DIFEI (GB)
Application Number:
PCT/GB2016/050995
Publication Date:
November 17, 2016
Filing Date:
April 11, 2016
Export Citation:
Assignee:
DEARMAN ENGINE COMPANY LTD (GB)
International Classes:
F01K25/10; F01K25/06
Domestic Patent References:
| WO2006117533A1 | 2006-11-09 | |||
| WO2013093486A2 | 2013-06-27 |
Foreign References:
| US20030136126A1 | 2003-07-24 | |||
| US4426847A | 1984-01-24 |
Attorney, Agent or Firm:
BINGHAM, Ian (Prama House267 Banbury Road, Summertow, Oxford Oxfordshire OX2 7HT, GB)
Download PDF: