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    • 4. 发明授权
    • Rotary vane type I.C. engine with built-in scavenging air blower
    • 旋转叶片式 发动机内置清扫风机
    • US4572121A
    • 1986-02-25
    • US431734
    • 1982-09-29
    • Victor Chang
    • Victor Chang
    • F02B1/04F02B53/08
    • F02B53/08F02B1/04Y02T10/17
    • A rotary internal combustion engine consisting of a generally cylindrical housing assembly having three different sections, with a common power shaft eccentrically journalled in the assembly. Each section has a rotor mounted on the power shaft, with six evenly spaced radial vanes slidably carried thereby and being slidably and sealingly engageable with the inside surfaces of the associated section. A fuel intake duct is connected to the first section, which accomplishes fuel admission and compression strokes. A port in a partition wall admits compressed fuel into the second section, which has spark plugs for igniting the compressed fuel. The second section provides expansion and exhaust strokes. The gaseous products of combustion leave through an exhaust duct connected to the second section. The third section defines an air blower whose output is connected to the second section by a transfer duct, discharging into the exhaust region of the second section and exerting scavenging action on the gaseous products of combustion discharging through the exhaust duct. Thus, there are six power strokes per revolution of the power shaft.
    • 旋转内燃机由具有三个不同部分的大致圆柱形的壳体组件组成,其中共同的动力轴偏心地安装在组件中。 每个部分具有安装在动力轴上的转子,其中六个均匀间隔的径向叶片可滑动地承载,并且与相关部分的内表面可滑动和密封地接合。 燃料进入管连接到第一部分,其实现燃料进入和压缩冲程。 隔壁中的一个端口承认压缩的燃料进入第二部分,该第二部分具有点燃压缩燃料的火花塞。 第二部分提供膨胀和排气冲程。 燃烧的气体产物通过连接到第二部分的排气管道离开。 第三部分定义了一个送风机,其输出通过传送管道连接到第二部分,排放到第二部分的排气区域中,并对通过排气管道排出的燃烧气体产物进行清除作用。 因此,动力轴每转有六次动力冲程。
    • 10. 发明申请
    • Skin puncture device with needle stick protection
    • 带针刺保护的皮肤穿刺装置
    • US20060189942A1
    • 2006-08-24
    • US11352830
    • 2006-02-13
    • Joseph ChangEugene ChangVictor Chang
    • Joseph ChangEugene ChangVictor Chang
    • A61M5/178
    • A61M25/0631A61B5/15003A61B5/150259A61B5/150389A61B5/150503A61B5/150656A61B5/150717A61B5/153A61M5/3243A61M2005/3247Y10S128/919
    • A skin puncture device for use as an intravenous catheter or blood collecting needle set is provided with a mechanism for protection against needle injury and access to fluid passageway during insertion. The assembly includes a flexible extension tube connected to the proximal end of the needle housing for use in difficult insertion sites. The extension tube provides access for fluid injection so that the passageway and needle can be filled with fluid prior to needle/catheter insertion, allowing diffusion of blood to provide evidence of successful venipuncture and allowing the infusion of small amounts of fluid into the vein to facilitate catheter advancement. The locking mechanism consists of two apertures in the needle housing and two pairs of needle guard locking tabs which selectively engage when the needle guard is pushed forward to its fully extended position upon completion of insertion or blood drawing, encapsulating the length of the needle.
    • 用作静脉导管或采集针组的皮肤穿刺装置设置有用于在插入期间防止针头损伤和进入流体通道的机构。 组件包括连接到针壳的近端的柔性延伸管,用于困难的插入位置。 延长管提供流体注射的通路,使得通道和针头可以在针/导管插入之前填充流体,允许血液扩散以提供成功的静脉穿刺的证据,并允许将少量流体输入静脉以促进 导管进展。 锁定机构由针壳体中的两个孔和两对针保护器锁定片组成,当针插入或抽血完成时,针护罩被推向其完全伸出位置时,该对针保护器锁定片选择性地接合,从而封装针的长度。