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    • 34. 发明授权
    • Structure of camshaft bearing
    • 凸轮轴轴承结构
    • US4777842A
    • 1988-10-18
    • US042529
    • 1987-04-24
    • Minoru Yamada
    • Minoru Yamada
    • F01L1/053F01M1/06F01M9/10F16C33/00F16C33/10F16H53/02
    • F16C33/1065F01L1/0532F01M9/102F16C17/026F16H53/02F16H57/04F01L2001/0476F02B2275/18Y10T74/2101
    • An oil groove capable of holding oil is formed on the inside surface of a camshaft bearing consisting of a cylinder head and a cam cap, at a position where the valve spring force acts. Oil is supplied to the oil groove from a cavity in a camshaft via an orifice provided in the camshaft. Since the part of the camshaft bearing which is exposed to the severest frictional contact is preferentially lubricated and at the same time the camshaft bearing as a whole can be well lubricated, even when the oil supply pressure from oil pump is insufficient on account of low engine speed or even when the viscosity of oil is low due to high temperature and thereby the oil film at the camshaft bearing is very thin, the camshaft bearing can be maintained in a well-lubricated state by the oil held in the oil groove, and thereby the binding can be prevented.
    • 在阀弹簧力作用的位置处,在由气缸盖和凸轮盖组成的凸轮轴轴承的内表面上形成能够保持油的油槽。 油通过设置在凸轮轴中的孔从凸轮轴中的空腔供给到油槽。 由于暴露于最严重摩擦接触的凸轮轴轴承的部分优先润滑,同时凸轮轴轴承作为一个整体可以很好地润滑,即使当油泵的供油压力不足时,由于低发动机 速度或甚至当油的粘度由于高温而低时,由此凸轮轴轴承上的油膜非常薄时,凸轮轴轴承可以通过保持在油槽中的油保持在良好的润滑状态,由此 可以防止装订。
    • 37. 发明授权
    • Induction system of multi-cylinder engine
    • 多缸发动机感应系统
    • US4344396A
    • 1982-08-17
    • US141284
    • 1980-04-18
    • Minoru Yamada
    • Minoru Yamada
    • F02B31/00F02B31/08F02D9/10F02M13/02F02M35/10F02M35/108F02M13/06
    • F02M35/10183F02B31/08F02D9/1015F02D9/1045F02D9/1055F02D9/109F02M13/02F02M35/10085F02M35/108F02B2031/003Y02T10/14Y02T10/146
    • An induction system for a multi-cylinder internal combustion engine that improves fuel efficiency and reduces the emission of unwanted exhaust gas constituents, particularly at the low and medium load conditions. The engine induction system comprises a plurality of separate carburetor barrels which, at least under some running conditions, serve cylinders separately from each other through main induction passages. One carburetor barrel is provided with a different fuel discharge system than the other carburetor barrels for accommodating a certain engine operating condition. A separate sub-intake system connects this carburetor barrel with other cylinders not normally served by the particular carburetor barrel in question. This sub-intake system has a substantially smaller cross-sectional area in the main intake system so that the charge drawn into the cylinders through the sub-intake system enters at a substantially higher velocity. This improves combustion by creating turbulence under at least some operating conditions. Several embodiments of throttle valve constructions are disclosed for insuring complete closure and sealing of at least one throttle valve of the induction control system for precluding leakage. In some embodiments this is accomplished by providing a resilient section in the throttle body and in other embodiments the result is obtained by providing a resilient seal on the periphery of the throttle valve.
    • 一种用于多气缸内燃机的感应系统,其特别是在低和中负载条件下,其提高了燃料效率并减少了不想要的废气组分的排放。 发动机感应系统包括多个单独的化油器筒,其至少在一些运行条件下通过主进气道彼此分开地供给气缸。 一个化油器桶具有与其他化油器桶不同的燃料排放系统,用于容纳一定的发动机工作状态。 单独的进气系统将该化油器筒与通常由所讨论的特定化油器筒服务的其它气缸连接。 该副进气系统在主进气系统中具有基本较小的横截面积,使得通过副进气系统吸入气缸的电量以相当高的速度进入。 这通过在至少一些操作条件下产生湍流来改善燃烧。 公开了节流阀结构的几个实施例,用于确保完全封闭和密封感应控制系统的至少一个节流阀,以排除泄漏。 在一些实施例中,这通过在节气门体中提供弹性部分来实现,并且在其他实施例中,通过在节流阀的周边上提供弹性密封来获得结果。
    • 39. 发明授权
    • Induction system for multi-cylinder engine
    • 多缸发动机感应系统
    • US4243001A
    • 1981-01-06
    • US10930
    • 1979-02-09
    • Minoru Yamada
    • Minoru Yamada
    • F02B31/00F02B31/08F02D9/02F02M13/02F02M35/10F02M35/108F02N19/00F02N17/00
    • F02M35/108F02B31/08F02M13/02F02M35/10085F02M35/10183F02B2031/003F02N19/001Y02T10/14Y02T10/146
    • An induction system for a multi-cylinder internal combustion engine that improves fuel efficiency and reduces the emission of unwanted exhaust gas constituents, particularly at the low and medium load conditions. The engine induction system comprises a plurality of separate carburetor barrels which, at least under some running conditions, serve cylinders separately from each other through main induction passages. One carburetor barrel is provided with a different fuel discharge system than the other carburetor barrels for accomodating a certain engine operating condition. A separate sub-intake system connects this carburetor barrel with other cylinders not normally served by the particular carburetor barrel in question. This sub-intake system has a substantially smaller cross-sectional area in the main intake system so that the charge drawn into the cylinders through the sub-intake system enters at a substantially higher velocity. This improves combustion by creating turbulence under at least some operating conditions. In a specific illustrated embodiment, the one carburetor barrel is provided with a choke valve so as to provide cold starting enrichment for all of the cylinders served by this carburetor barrel during cold starting. In accordance with the invention, means are provided for achieving a corresponding flow resistance in the carburetor barrels which do not have the cold starting device so that under other engine operating conditions the flow resistance between the various carburetor barrels is equal. In one embodiment this is done by providing a somewhat smaller venturi section in the other carburetor barrels. In another embodiment, this is done by changing the initial setting of the throttle valve of the one carburetor barrel from the others so as to provide the appropriate resistance differential.
    • 一种用于多气缸内燃机的感应系统,其特别是在低和中负载条件下,其提高了燃料效率并减少了不想要的废气组分的排放。 发动机感应系统包括多个单独的化油器筒,其至少在一些运行条件下通过主进气道彼此分开地供给气缸。 一个化油器桶具有与其他化油器桶不同的燃料排放系统,用于容纳某一发动机工作状态。 单独的进气系统将该化油器筒与通常由所讨论的特定化油器筒服务的其它气缸连接。 该副进气系统在主进气系统中具有基本较小的横截面积,使得通过副进气系统吸入气缸的电量以相当高的速度进入。 这通过在至少一些操作条件下产生湍流来改善燃烧。 在具体示出的实施例中,一个化油器筒设置有阻流阀,以便在冷起动期间为由该化油器筒服务的所有气缸提供冷起动浓缩。 根据本发明,提供了用于在不具有冷启动装置的化油器筒中实现相应的流动阻力的装置,使得在其它发动机操作条件下,各种化油器桶之间的流动阻力相等。 在一个实施例中,这通过在另一个化油器桶中提供稍微较小的文丘里管部分来完成。 在另一个实施例中,这是通过改变一个化油器筒的节流阀的初始设定而实现的,从而提供适当的电阻差。
    • 40. 发明授权
    • Induction system of multi-cylinder engine
    • 多缸发动机感应系统
    • US4243000A
    • 1981-01-06
    • US965485
    • 1978-12-01
    • Minoru Yamada
    • Minoru Yamada
    • F02B31/00F02B31/08F02D9/10F02M13/02F02M19/00F02M35/10F02M35/108F02M13/06
    • F02M35/10183F02B31/08F02D9/1015F02D9/1045F02D9/1055F02D9/109F02M13/02F02M19/00F02M35/10085F02M35/108F02B2031/003Y02T10/14Y02T10/146
    • An induction system for a multi-cylinder internal combustion engine that improves fuel efficiency and reduces the emission of unwanted exhaust gas constituents, particularly at the low and medium load conditions. The engine induction system comprises a plurality of separate carburetor barrels which, at least under some running conditions, serve cylinders separately from each other through main induction passages. One carburetor barrel is provided with a different fuel discharge system than the other carburetor barrels for accomodating a certain engine operating condition. A separate sub-intake system connects this carburetor barrel with other cylinders not normally served by the particular carburetor barrel in question. This sub-intake system has a substantially smaller cross-sectional area in the main intake system so that the charge drawn into the cylinders through the sub-intake system enters at a substantially higher velocity. This improves combustion by creating turbulence under at least some operating conditions. Several embodiments of throttle valve constructions are disclosed for insuring complete closure and sealing of at least one throttle valve of the induction control system for precluding leakage. In some embodiments this is accomplished by providing a resilient section in the throttle body and in other embodiments the result is obtained by providing a resilient seal on the periphery of the throttle valve.
    • 一种用于多气缸内燃机的感应系统,其特别是在低和中负载条件下,其提高了燃料效率并减少了不想要的废气组分的排放。 发动机感应系统包括多个单独的化油器筒,其至少在一些运行条件下通过主进气道彼此分开地供给气缸。 一个化油器桶具有与其他化油器桶不同的燃料排放系统,用于容纳某一发动机工作状态。 单独的进气系统将该化油器筒与通常由所讨论的特定化油器筒服务的其它气缸连接。 该副进气系统在主进气系统中具有基本较小的横截面积,使得通过副进气系统吸入气缸的电量以相当高的速度进入。 这通过在至少一些操作条件下产生湍流来改善燃烧。 公开了节流阀结构的几个实施例,用于确保完全封闭和密封感应控制系统的至少一个节流阀,以排除泄漏。 在一些实施例中,这通过在节气门体中提供弹性部分来实现,并且在其他实施例中,通过在节流阀的周边上提供弹性密封来获得结果。