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    • 13. 发明授权
    • Multi-cylinder spark ignition engine
    • 多缸火花点火发动机
    • US08919303B2
    • 2014-12-30
    • US13818051
    • 2011-06-27
    • Kouji ShishimeJunsou SasakiHideki Omori
    • Kouji ShishimeJunsou SasakiHideki Omori
    • F02B75/04F02D15/00F02D13/02F02P5/04F02D41/00F02P5/152
    • F02B75/04F02D13/02F02D15/00F02D41/006F02D2200/10F02P5/045F02P5/152Y02T10/18
    • An exhaust manifold has a plurality of branched exhaust passages connected to respective exhaust ports of individual cylinders; a plurality of first collector segments each of which joins the branched exhaust passages for the cylinders which are not adjacent in the exhaust order sequence; a plurality of middle exhaust passages connected to the downstream of the first collector segments, respectively; and a second collector segment that joins the middle exhaust passages. In at least low and middle speed ranges in a high load region of the engine, a valve opening time of an exhaust valve is changed according to the engine speed so that a predetermined amount of a valve overlap period is ensured and that negative pressure waves from exhaust pressure pulses reach an exhaust port during the valve overlap period in a plurality of engine speed ranges.
    • 排气歧管具有连接到各个气缸的相应排气口的多个分支排气通道; 多个第一收集器段,每个第一收集器段连接用于在排气顺序序列中不相邻的气缸的分支排气通道; 多个中间排气通道分别连接到第一收集器段的下游; 以及连接中间排气通道的第二收集器段。 在发动机的高负载区域的至少中低档范围内,根据发动机转速来改变排气阀的开阀时间,从而确保预定量的阀重叠期间, 排气压力脉冲在多个发动机转速范围内的气门重叠期间到达排气口。
    • 20. 发明授权
    • Control system of grinding machine
    • 磨床控制系统
    • US5133158A
    • 1992-07-28
    • US606539
    • 1990-10-31
    • Hiroyuki KiharaHideki Omori
    • Hiroyuki KiharaHideki Omori
    • B24B41/04G05B19/39G05B19/402
    • G05B19/39B24B41/044G05B19/402G05B2219/37405G05B2219/45159G05B2219/45161G05B2219/49271
    • The control system is provided in a grinding machine composed of an axially movable rotational shaft having a grinding tool and being supported magnetically by electromagnets. The control system includes a target position modifying controller for modifying or shifting a reference target levitating position of the rotational shaft in a retreating direction away from a workpiece reaches a predetermined amount. The control system further includes a rigidity modifying controller operative during quick feed operation of the rotational shaft for making a rigidity of the rotational shaft lower than that in the grinding operation by adjusting exciting currents of the electromagnets. The control system still further includes a dressing controller operative during dressing of a new grinding tool for detecting that the grinding tool begins to touch a dresser and for judging that the dressing is completed just when an arithmetic value calculated based on the detection reaches a predetermined value.
    • 控制系统设置在由具有研磨工具的轴向移动的旋转轴构成并由电磁体磁力支撑的研磨机中。 该控制系统包括:目标位置修正控制器,用于修改或移动远离工件的退避方向的旋转轴的基准目标悬浮位置达到预定量。 控制系统还包括刚性修正控制器,其在旋转轴的快速进给操作期间操作,以通过调节电磁体的励磁电流来使旋转轴的刚度低于研磨操作的刚度。 该控制系统还包括一个修整控制器,该修整控制器在修整新的磨削工具期间操作,用于检测研磨工具开始接触修整器,并且仅当基于检测计算出的算术值达到预定值时才判断敷料完成 。