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    Two-cycle heat-insulating engine
    221.
    发明授权
    Two-cycle heat-insulating engine 失效
    双循环隔热发动机

    公开(公告)号：US5000133A

    公开(公告)日：1991-03-19

    申请号：US514473

    申请日：1990-04-25

    Applicant: Hideo Kawamura

    Inventor： Hideo Kawamura

    IPC: F02B77/11 ,  F01L9/04 ,  F02B1/04 ,  F02B25/04 ,  F02B29/08 ,  F02B75/02 ,  F02B77/02 ,  F02D13/02 ,  F02F1/00 ,  F02F1/22

    CPC classification number: F02D13/0203 ,  F02B25/04 ,  F02B75/02 ,  F02B77/02 ,  F02D13/0253 ,  F02D13/0257 ,  F02D13/028 ,  F02F1/22 ,  F01L2201/00 ,  F02B1/04 ,  F02B2075/025 ,  F02B77/11 ,  F02D2041/001 ,  Y02T10/18

    Abstract: In a two-cycle heat-insulating engine of the present invention, each of combustion chambers defined by the lower surface of a cylinder head and a cylinder line has an adiabatic structure, each of exhaust valves is disposed in each exhaust port formed in the cylinder head, an intake valve for preventing the backflow of an exhaust gas is disposed in each intake port formed at the lower part of a cylinder, each of these valves is actuated for opening and closing by electromagnetic force of each electromagnetic valve driving device, and a controller controls the opening/closing timing of the intake and exhaust valves, the valve opening/closing time, etc, in response to detection signals from detection means for detecting the operational conditions of the engine. Particularly when the engine is driven at a low number of revolution, the exhaust valve is opened near the lower dead point so as to exhaust all at once the exhaust gas and to suck the intake air, to limit any thermal influences on the intake air and to prevent the drop of the intake air quantity.

    MODULATED VALVE TIMING TO ACHIEVE OPTIMUM CYLINDER PRESSURE TARGET
    222.
    发明公开
    MODULATED VALVE TIMING TO ACHIEVE OPTIMUM CYLINDER PRESSURE TARGET 审中-公开
    MODULIERTE VENTILSTEUERUNG ZUR ERZIELUNG EINES OPTIMALEN ZYLINDERDRUCKZIELS

    公开(公告)号：EP3133274A1

    公开(公告)日：2017-02-22

    申请号：EP16184611.8

    申请日：2016-08-17

    Applicant: Cummins, Inc.

    Inventor： Shipp, Timothy

    IPC: F02D41/00 ,  F02D41/14 ,  F02D35/02 ,  F02D13/02

    CPC classification number: F02D41/0002 ,  F01L1/34 ,  F01L2201/00 ,  F02D13/0234 ,  F02D35/023 ,  F02D41/1401 ,  F02D41/1406 ,  F02D41/26 ,  F02D2041/001 ,  F02D2041/1412 ,  F02D2041/1433 ,  F02D2200/0625 ,  Y02T10/18 ,  Y02T10/42

    Abstract: A system includes an engine and a controller in operative communication with the engine. Engine operating conditions are determined. At least one engine operating condition is determined. Based on the determined at least one engine operating condition, brake-specific fuel consumption is determined for each of a plurality of candidate cylinder pressures. A target cylinder pressure is selected from the plurality of candidate cylinder pressures. The target cylinder pressure is the candidate cylinder pressure at which brake-specific fuel consumption is minimized. Intake valve timing of the engine is modulated so as to achieve the target cylinder pressure.

    Abstract translation: 一种系统包括发动机和与发动机可操作地通信的控制器。 发动机工作条件确定。 确定至少一个发动机工作条件。 基于所确定的至少一个发动机操作条件，针对多个候选气缸压力中的每一个确定制动特定燃料消耗。 从多个候选气缸压力中选择目标气缸压力。 目标气缸压力是制动特定燃料消耗最小化的候选气缸压力。 调节发动机的进气门正时，以达到目标气缸压力。

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