Title:
A combustion promoting device of natural gas
Document Type and Number:
Japanese Patent JP6281882
Kind Code:
B2
Abstract:
In the present invention, installed is a plasma reactor (2) for irradiating an air-fuel mixture of natural gas fuel and air with plasma and thereby partially oxidizing a portion of the methane molecules contained in the air-fuel mixture. A discharge voltage applied to the plasma reactor (2) is subject to feedback control by a control device (10) so that the total efficiency reaches a maximum or becomes optimal along with an exhaust gas property. According to the present invention, without the use of additional equipment for introducing hydrogen to a combustion chamber, irradiating a premixed gas of combustion air and natural gas containing methane with non-equilibrium plasma makes it possible to partially oxidize a small part of the methane gas contained in the natural gas and the like, thereby making it possible to improve the combustion properties during combustion and ignition through promotion of a low-temperature reaction of the methane molecules and the like during compression, to improve the overall thermal efficiency, and to inhibit discharge as an unburned gas component.
Inventors:
Eiichi Takahashi
Koichi Kojima
Koichi Kojima
Application Number:
JP2015542682A
Publication Date:
February 21, 2018
Filing Date:
October 17, 2014
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
F02M27/04; F02D19/02; F02D19/08; F02D45/00; F02M21/02
Domestic Patent References:
| JP2013148098A | ||||
| JP2010101173A | ||||
| JP2005240586A | ||||
| JP2005147125A | ||||
| JP2007275789A |
Foreign References:
| US5159900 |
Attorney, Agent or Firm:
Shin Shioda