Title:
FUEL INJECTION NOZZLE
Document Type and Number:
Japanese Patent JP2014152646
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection nozzle capable of injecting DME fuel to a combustion chamber under a supercritical state.SOLUTION: A fuel injection nozzle 1 is configured to heat DME fuel in a sack chamber 17 by combustion heat in a combustion chamber into a supercritical state. Then, a heat receiving body 22 is provided to promote heat transfer from the combustion chamber to the sack chamber 17. Thereby, the fuel immediately before injection is made into the supercritical state, and therefore, even the DME fuel whose phase state is easily changed can be reliably injected under the supercritical state. Also, to make the DME fuel into the supercritical state, there is no need for preparing a heat source and the sack chamber 17 only has to be heated using the combustion heat in the combustion chamber. Therefore, there is no need of a large-scale system. Also, a liquid phase is maintained on an upstream of a seat part 20, so that a mass injection amount can be secured.
Inventors:
KATO MASAAKI
Application Number:
JP2013020949A
Publication Date:
August 25, 2014
Filing Date:
February 05, 2013
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02M53/04; F02M51/06; F02M61/18
Domestic Patent References:
| JP2002161827A | 2002-06-07 | |||
| JP2008045463A | 2008-02-28 | |||
| JP2005299642A | 2005-10-27 | |||
| JPS63201315A | 1988-08-19 | |||
| JP2005330915A | 2005-12-02 | |||
| JPH05202826A | 1993-08-10 |
Attorney, Agent or Firm:
Kenji Ishiguro
Shinji Nagatani
Shinji Nagatani
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