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公开(公告)号:US20250020088A1
公开(公告)日:2025-01-16
申请号:US18717543
申请日:2022-08-29
Applicant: KUBOTA CORPORATION
Inventor: Yasushi KOBAYASHI , Naotaro NAGAI , Rina KANEKO , Masanari TENNOMI , Naruhiro MATSUO
Abstract: A diesel engine 1 includes: an injector 15; a control device which controls an injection timing of fuel 81 injected from the injector 15; and exhaust circulating means. The control device controls the injection timing of main injection and pre-injection performed prior to the main injection and executes control such that, by ensuring a premixing period of the pre-injection from start of the pre-injection until ignition of an air-fuel mixture of the fuel 81 injected by the pre-injection and the air AR, a homogenous and lean premixed air-fuel mixture is generated in the auxiliary combustion chamber 13 by the fuel 81 injected by the pre-injection and air AR, and the premixing period of the main injection from the start of the main injection until ignition of the air-fuel mixture of the fuel 81 injected by the main injection and the air AR is ensured.
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公开(公告)号:US20160290275A1
公开(公告)日:2016-10-06
申请号:US15081078
申请日:2016-03-25
Applicant: KUBOTA Corporation
Inventor: Tatsuhiko HORITA , Naruhiro MATSUO
Abstract: An injection control apparatus includes an injector for injecting fuel which is accumulated under pressure toward a combustion chamber, an injector driver for supplying a current to an electromagnetic actuator used for a solenoid valve, and a state detection unit for detecting a state of an engine or an ambient environment. A valve opening control unit supplies a first current to the electromagnetic actuator for opening the solenoid valve. An opened-state maintaining control unit supplies a second current to the electromagnetic actuator for maintaining the solenoid valve continuously in an opened position. A timing control unit variably adjusts a period of time from a starting time of the valve opening control unit to a time when the opened-state maintaining control unit becomes active in place of the valve opening control unit, in accordance with a result of detection provided by the state detection unit.
Abstract translation: 喷射控制装置包括:喷射器,其用于将燃料积聚在燃烧室内;压力驱动器,用于向用于电磁阀的电磁致动器供给电流;以及状态检测单元,用于检测发动机的状态, 环境环境。 开阀控制单元向用于打开电磁阀的电磁致动器提供第一电流。 开状态维持控制单元向电磁致动器提供第二电流,以将电磁阀连续地保持在打开位置。 定时控制单元根据提供的检测结果可变地调节从开阀控制单元的启动时间到打开状态保持控制单元变为活动的时间代替开阀控制单元的时间段 由状态检测单元。
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