Title:
DIESEL ENGINE EMPLOYING DIMETHYL ETHER AS FUEL
Document Type and Number:
WIPO Patent Application WO/2007/049780
Kind Code:
A1
Abstract:
A diesel engine employing dimethyl ether (DME) as fuel and equipped with a common
rail fuel supply unit in which the engine is protected against damage due to leakage
of DME. An engine controller (8) is provided with a pressure detection means (81)
and a storage means (82), wherein the pressure in the fuel supply unit, e.g. the
pressure of a common rail (3), is detected and that pressure is stored when the
engine is stopping. When the engine is restarted, pressure at that position is
detected and if the detected pressure is lower than the stored pressure by a predetermined
value or more, starting of the engine is forbidden. Since the engine cannot be
started when the pressure in the common rail (3) is lowered due to trouble at the
sealing portion of a fuel injection valve (2), damage to the engine due to combustion
of leaked DME can be avoided even if the leaked DME is accumulated in the cylinder.
More Like This:
| JP2002303232 | ENGINE STARTING DEVICE |
| JPH06147070 | REMOTE CONTROL STARTER OF ENGINE FOR AUTOMOBILE |
Inventors:
TOKUMARU TAKESHI (JP)
Application Number:
PCT/JP2006/321591
Publication Date:
May 03, 2007
Filing Date:
October 24, 2006
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
TOKUMARU TAKESHI (JP)
TOKUMARU TAKESHI (JP)
International Classes:
F02N11/08; F02D29/02; F02D41/22; F02D45/00; F02N11/10; F02N15/10
Foreign References:
| JPH0565841A | 1993-03-19 | |||
| JP2005076543A | 2005-03-24 |
Attorney, Agent or Firm:
ONO, Hisazumi et al. (1-21 Nishi-shimbashi 1-chom, Minato-ku Tokyo, JP)
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