FUEL GAS SUPPLY METHOD AND DEVICE FOR GAS ENGINE

Title:

FUEL GAS SUPPLY METHOD AND DEVICE FOR GAS ENGINE

Document Type and Number:

WIPO Patent Application WO/2012/105076

Kind Code:

A1

Abstract:

The present invention is characterized in that in a gas engine in which a gas supply pipe (35) branches into a supercharger-side gas supply pipe (33) and a cylinder-side gas supply pipe (37) and which is provided with a supercharger-side gas quantity adjustment valve (43) and a cylinder-side gas quantity adjustment valve (45) which control the flow rates in the passages of the respective gas supply pipes, when the concentration of fuel gas is changed, while the ratio (Q1/Q2) between the fuel gas quantity (Q1) of the supercharger-side gas supply pipe (33) and the fuel gas quantity (Q2) of the cylinder-side gas supply pipe (37) has a constant relationship, a gas supply controller (63) first controls the cylinder-side gas quantity adjustment valve (45) so as to maintain a constant engine output, and then controls the supercharger-side gas quantity adjustment valve (43) so as to achieve the fuel gas quantity (Q1) based on the constant ratio.

Inventors:

NISHIO HIDEKI (JP)
SUZUKI HAJIME (JP)
SHIMIZU YUUICHI (JP)

Application Number:

PCT/JP2011/068860

Publication Date:

August 09, 2012

Filing Date:

August 22, 2011

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUBISHI HEAVY IND LTD (JP)
NISHIO HIDEKI (JP)
SUZUKI HAJIME (JP)
SHIMIZU YUUICHI (JP)

International Classes:

F02M21/02; F02B43/00; F02B43/04

Foreign References:

JP2006249954A	2006-09-21
JP2009144626A	2009-07-02
JP2006009603A	2006-01-12
JP2004211674A	2004-07-29
JP2003278605A	2003-10-02
JP2001132550A	2001-05-15
JP2006249954A	2006-09-21
JP2009144626A	2009-07-02

Other References: