Internal combustion engine
    1.
    发明授权

    公开(公告)号:US06532914B2

    公开(公告)日:2003-03-18

    申请号:US09918980

    申请日:2001-07-31

    Inventor: Takehiro Washizu

    Abstract: A four-cycle engine includes a cylinder block defining a cylinder bore. A piston is reciprocally disposed within the cylinder bore. A cylinder head member closes an end of the cylinder bore to define a combustion chamber together with the cylinder bore and the piston. The cylinder head member defines an inner passage having a first end communicating with the combustion chamber and a second end terminating at an outer surface of the cylinder head. A valve assembly having a valve section and an actuateable section is provided. The valve section is selectively placed at an open position and a closed position to connect and disconnect the inner passage with the combustion chamber, respectively. The actuateable section is formed oppositely from the valve section. A valve actuation mechanism is arranged to actuate the actuateable section to move the valve section between the open position and the closed position. The cylinder head member further defines a guide opening through which the actuateable section is slideably disposed. An external conduit defines an outer passage communicating with the inner passage. The external conduit depends from an end portion of the cylinder head member. The cylinder head member still further defines a recessed portion between the guide opening and the second end of the inner passage.

    Intake system for automative engine
    5.
    发明授权
    Intake system for automative engine 失效
    自动引擎进气系统

    公开(公告)号:US5018485A

    公开(公告)日:1991-05-28

    申请号:US485466

    申请日:1990-02-27

    Abstract: An improved induction system for an internal combustion engine that improves power throughout the entire speed and load ranges by including two plenum chambers, having separate intake passage that serve the cylinders of the engine. One plenum chamber and its intake passages is designed to improve low and midrange performance while the other plenum chamber and its intake passage is tuned for high speed performance. An atmospheric air inlet is provided only for the latter plenum chamber and the first mentioned plenum chamber receives its atmospheric air from this plenum chamber through a connecting passageway.

    Abstract translation: 一种用于内燃机的改进的感应系统,其通过包括两个通风室,在整个速度和负载范围内改善功率,其具有用于发动机气缸的独立进气通道。 一个通风室及其进气通道设计用于改善低和中等性能,而另一个增压室及其进气通道被调整以实现高速性能。 仅为后者的增压室提供大气入口,并且首先提及的增压室通过连接通道从该增压室接收其大气。

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