Title:
GAS ENGINE CONTROL DEVICE, GAS ENGINE SYSTEM, AND GAS ENGINE CONTROL PROGRAM
Document Type and Number:
Japanese Patent JP2020200774
Kind Code:
A
Abstract:
To provide a gas engine control device, a gas engine system, and a gas engine control program, which are capable of stable operation even when a load is applied.SOLUTION: A gas engine control device includes: a main chamber defined by a cylinder and a piston; a sub-chamber that has a nozzle hole and is brought into communication with the main chamber via the nozzle hole; and a sub-chamber gas regulating valve for regulating the amount of a fuel gas supplied to the sub-chamber. The gas engine control device is provided with a command value setting unit that is configured to, at least during increase in the engine load, on the basis of a main chamber air excessive rate λ1 that is an air excessive rate of an air-fuel mixture supplied into the main chamber, a sub-chamber air excessive rate λ2 that is an air excessive rate of the gas in the sub-chamber at the time of ignition, and a misfire rate map indicating a correlation among misfire rates, set an opening command value of the sub-chamber gas regulating valve so as to prevent the sub-chamber air excessive rate λ2 from entering a misfire range in the misfire rate map.SELECTED DRAWING: Figure 6
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Inventors:
TANAKA KENGO
TAKAYANAGI HISASHI
IGAWA YOSHIKATSU
MORI NAOYUKI
MIHASHI MASATO
SUDO TAKESHI
NAGAFUNE SHINNOSUKE
KITAMURA HARUMASA
KOYAMA YUKI
TAKAYANAGI HISASHI
IGAWA YOSHIKATSU
MORI NAOYUKI
MIHASHI MASATO
SUDO TAKESHI
NAGAFUNE SHINNOSUKE
KITAMURA HARUMASA
KOYAMA YUKI
Application Number:
JP2019106247A
Publication Date:
December 17, 2020
Filing Date:
June 06, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD
International Classes:
F02D19/02; F02B19/10; F02M21/02
Domestic Patent References:
| JP2013209967A | 2013-10-10 | |||
| JP2004036424A | 2004-02-05 |
Attorney, Agent or Firm:
Seishin ip patent business corporation