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    • 1. 发明授权
    • Temperature compensated hydraulic valve
    • 温度补偿液压阀
    • US3648967A
    • 1972-03-14
    • US3648967D
    • 1970-11-10
    • PHYSICS INT CO
    • O'NEILL CORMAC GSMILEY PARKER C
    • F15B7/00G05D23/185F16K31/12F16L55/04
    • F15B7/00G05D23/185
    • A valve of the type which employs a hydraulic piston for amplifying the motion of an actuator, wherein undesirable effects of thermal expansion of the hydraulic fluid are eliminated. The valve includes an elastically expandable chamber coupled through a narrow passageway to the hydraulic cylinder for receiving fluid therefrom at a slow rate to hold the extra volume of hydraulic fluid caused by thermal expansion, and a check valve for allowing fluid to flow quickly from the chamber back to the cylinder. The narrow passageway from the hydraulic cylinder to the expandable chamber is formed by an appreciable clearance between a plunger that is moved by the hydraulic fluid and a plunger cylinder in which it slides.
    • 这种类型的阀采用液压活塞来放大致动器的运动,其中消除了液压流体的热膨胀的不期望的影响。 阀包括通过窄通道连接到液压缸的可弹性膨胀室,用于以缓慢的速率从其中接收流体,以保持由热膨胀引起的额外体积的液压流体;以及止回阀,用于允许流体从腔室快速流动 回到圆筒。 从液压缸到可膨胀室的狭窄通道由液压流体移动的柱塞与其滑动的柱塞缸之间的可视间隙形成。
    • 4. 发明授权
    • Vapor venting and purging system for engines
    • 用于发动机的蒸气透气和清洗系统
    • US3690307A
    • 1972-09-12
    • US3690307D
    • 1970-08-13
    • PHYSICS INT CO
    • O'NEILL CORMAC G
    • F02M25/08F02M59/00
    • F02M25/089F02M25/0836
    • Apparatus for use with an internal combustion engine wherein a fuel float bowl and gasoline tank are connected through a vapor trap to the ambient atmosphere to prevent pollution by hydrocarbon vapors. The vapor trap is purged at high engine loads by an air flow through the vapor trap and into the engine, the air flow being controlled by the use of a sensor stationed along the path of the fuel or air components prior to their entering the cylinders. In a fuel injection engine of the type wherein fuel pressure varies with engine load, the vapor trap is coupled to a venturi through a valve that is opened only when the fuel pressure exceeds a predetermined value. The valve has a variable opening so that only small amounts of purge air flow through the vapor trap to the engine at moderate engine loads and large amounts of purge air flow only at very high engine loads, to provide a minimal change in the fuel-to-air ratio.
    • 用于内燃机的装置,其中燃料浮筒和汽油箱通过蒸汽疏水阀连接到周围环境,以防止碳氢化合物蒸气污染。 蒸汽捕集器在高发动机负载下通过气流通过蒸气阱并进入发动机而被吹扫,空气流通过使用沿着燃料或空气组分的路径驻留在其进入气缸之前的传感器来控制。 在其中燃料压力随着发动机负荷而变化的燃料喷射发动机中,蒸汽阱通过仅在燃料压力超过预定值时打开的阀门连接到文丘里管。 阀具有可变的开口,使得只有少量的净化空气在适中的发动机负荷下才流过发动机并且在非常高的发动机负荷下才能流过发动机,并且大量的净化空气仅在非常高的发动机负荷下流动,以提供燃料的最小变化 空气比。