公开(公告)号：US20180298840A1

公开(公告)日：2018-10-18

申请号：US15760591

申请日：2016-05-24

申请人： Yanmar Co., Ltd.

发明人： Ryoichi HAGIWARA ,  Osamu YAMAGISHI ,  Naoya IKEDA

IPC分类号： F02D41/22 ,  F02B69/04 ,  F02B43/04 ,  F02M21/04 ,  F02D41/00 ,  B63H21/21

CPC分类号： F02D41/222 ,  B63H21/21 ,  B63H2021/216 ,  F02B43/00 ,  F02B43/04 ,  F02B69/04 ,  F02D19/025 ,  F02D19/10 ,  F02D25/00 ,  F02D29/06 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/1401 ,  F02D2041/1433 ,  F02D2041/227 ,  F02D2200/1004 ,  F02M21/02 ,  F02M21/04 ,  Y02T10/32 ,  Y02T10/36 ,  Y02T10/40

摘要： An engine device including: an intake manifold (67) configured to supply air into a cylinder (77); a gas injector (98) configured to mix fuel gas with air supplied from the intake manifold (67), and supply mixed gas to the cylinder (77); an igniter (79) configured to ignite, in the cylinder (77), premixed fuel obtained by pre-mixing the fuel gas with the air; and a control unit (73) configured to execute a combustion control of a premixed fuel based on the output signal indicative of an output from the engine device. When the air amount is determined to be insufficient and when the output signal is lost, the control unit (73) estimates an output signal based on the fuel gas injection amount from the gas injector (98), and executes the combustion control based on the estimated output signal.

公开(公告)号：US20180216559A1

公开(公告)日：2018-08-02

申请号：US15747015

申请日：2016-05-24

申请人： Yanmar Co., Ltd.

发明人： Ryoichi HAGIWARA ,  Osamu YAMAGISHI ,  Naoya IKEDA

IPC分类号： F02D41/18 ,  F02D41/00 ,  F02P5/15 ,  F02D41/14 ,  B63H21/17

CPC分类号： F02D41/18 ,  B63B2755/00 ,  B63H21/17 ,  F02B61/04 ,  F02D19/02 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/144 ,  F02D45/00 ,  F02D2200/0406 ,  F02D2200/10 ,  F02M21/0248 ,  F02P5/15 ,  F02P5/1523 ,  Y02T10/32 ,  Y02T10/46

摘要： An engine device including an intake manifold (67) configured to supply air into a cylinder (36) a gas injector (98) configured to mix fuel gas with air supplied from the intake manifold (67) and supply mixed gas to the cylinder (36) and an igniter (79) configured to ignite, in the cylinder (36) premixed fuel obtained by pre-mixing the fuel gas with the air, the engine device further including a controlling unit (73) configured to determine an air amount in the premixed fuel in the cylinder (36) The controlling unit (73) performs in multiple steps retard control of ignition timing by the igniter (79), when the air amount is insufficient, and performs in multiple steps advance control of the ignition timing, when the air amount is.