公开(公告)号：US20170089306A1

公开(公告)日：2017-03-30

申请号：US15311991

申请日：2015-05-18

Applicant: HITACHI, LTD.

Inventor： Atsushi SHIMADA ,  Takao ISHIKAWA ,  Yuzo SHIRAKAWA

IPC: F02M27/02 ,  F02B9/02 ,  F02D19/08 ,  C01B3/32

CPC classification number: F02M27/02 ,  C01B3/323 ,  C01B3/50 ,  C01B2203/0233 ,  C01B2203/04 ,  C01B2203/046 ,  C01B2203/1229 ,  C01B2203/148 ,  F02B9/02 ,  F02D19/08 ,  F02D19/082 ,  F02D41/02

Abstract: An ethanol engine system stabilizes components of reformed gas generated by a reformer and a calorific value of fuel supplied to an engine. The ethanol engine system includes a reservoir tank for an aqueous ethanol solution, a first supply device that supplies the aqueous ethanol solution to the reformer, a separator that cools mixed gas fed from the reformer, including the reformed gas, condenses water vapor included in the mixed gas and separates into gas and liquid, a reformed gas supply device that supplies the reformed gas separated by the separator to the engine, a recovery tank that collects a recovery solution separated by the separator, and a first recovery solution supply device that supplies the recovery solution in the recovery tank to the reformer or a second recovery solution supply device that supplies the recovery solution in the recovery tank to a combustion chamber of the engine.

公开(公告)号：US20140048022A1

公开(公告)日：2014-02-20

申请号：US14067075

申请日：2013-10-30

Applicant: Hitachi, Ltd.

Inventor： Atsushi SHIMADA ,  Takao ISHIKAWA ,  Tadashi SANO

IPC: F02M27/02

CPC classification number: F02M27/02 ,  C01B3/38 ,  C01B3/382 ,  C01B2203/0233 ,  C01B2203/1023 ,  C01B2203/1041 ,  C01B2203/1047 ,  C01B2203/1052 ,  C01B2203/1064 ,  C01B2203/107 ,  C01B2203/1082 ,  C01B2203/1247 ,  C01B2203/148 ,  C01B2203/1604 ,  F02M31/08 ,  Y02T10/126

Abstract: An engine system includes a reformer for driving an engine by supplying the engine with a reformed fuel which the reformer reforms from a pre-reformed fuel. The reformer includes a reforming catalyst for reforming the pre-reformed fuel by a water vapor reforming reaction. The engine system also includes a pre-reformed fuel supply adjustment unit for supplying the pre-reformed fuel to the reformer. The reformer includes an extremity portion provided in an engine cylinder. The pre-reformed fuel supply adjustment unit supplies the pre-reformed fuel to the reformer during a suction stroke of the engine, and the reformed fuel is directly supplied from the reformer into the engine cylinder.

Abstract translation: 发动机系统包括：重整器，用于通过向发动机提供重整器从改进前的燃料改造的重整燃料来驱动发动机。 重整器包括用于通过水汽重整反应重整预重整燃料的重整催化剂。 发动机系统还包括用于将改性前燃料供应给重整器的预重整燃料供应调节单元。 重整器包括设置在发动机气缸中的末端部分。 预重整的燃料供给调节单元在发动机的吸入冲程期间将改性后的燃料供给到重整器，并且重整燃料直接从重整器供给到发动机气缸中。

公开(公告)号：US20240263593A1

公开(公告)日：2024-08-08

申请号：US18562857

申请日：2022-04-20

Applicant: HITACHI, LTD.

Inventor： Atsushi SHIMADA ,  Yoshihiro SUKEGAWA ,  Kengo KUMANO

IPC: F02D35/02 ,  F02D41/00 ,  F02D41/40

CPC classification number: F02D35/028 ,  F02D41/0087 ,  F02D41/401

Abstract: An electronic control device for mixed hydrogen combustion includes a combustion timing detection unit that detects the combustion timing of an engine; and an abnormal state detection unit that detects an abnormal state, in which a type of abnormality occurring in the engine has been determined, on the basis of the combustion timing and a second fuel supply ratio calculated from the supply amount of hydrocarbon fuel supplied by a first fuel supply device and the supply amount of a second fuel supplied by a second fuel supply device. A control mode determination unit determines a control mode corresponding to the abnormal state, controls the supply amount of hydrogen to be supplied by the second fuel supply device on the basis of the control mode, and outputs the control mode to an engine controller for controlling the engine.

公开(公告)号：US20220252402A1

公开(公告)日：2022-08-11

申请号：US17595276

申请日：2020-03-10

Applicant: Hitachi, Ltd.

Inventor： Atsushi SHIMADA ,  Taizou MIYAZAKI

IPC: G01C21/20 ,  G01C21/34

Abstract: A management server according to the present invention comprises: a position confirmation unit which confirms a via point of a vehicle and the position of the vehicle; an objective function determination unit which determines an objective function; a vehicle assessment unit which assesses for each of a plurality of vehicles whether the vehicle is a moving vehicle that is currently moving or is scheduled to move or a stopped vehicle that is currently stopped, on the basis of information collected from the plurality of vehicles; and a computation allocation determination unit which determines that a computational process for planning a route for a moving vehicle moving by consuming energy supplied to a drive source from an energy storage unit is to be allocated to a stopped vehicle able to compute the objective function, and which, via a server-side communication unit, directs a controller of the stopped vehicle to perform the computation.