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    • 3. 发明授权
    • Radial piston and cylinder compressed gas motor
    • 径向活塞和气缸压缩气体马达
    • US5049039A
    • 1991-09-17
    • US443757
    • 1989-11-30
    • Donald E. KnothJames W. BradburyMark A. Nagy
    • Donald E. KnothJames W. BradburyMark A. Nagy
    • F01B1/06F01B17/02F02B75/18F02B75/22F03C1/053F03C1/36F03C1/38
    • F03C1/0444F01B1/062F01B17/02F02B75/22F03C1/0438F03C1/053F02B2075/184
    • A radial piston and cylinder compressed gas motor is disclosed which is particularly suited for use where economical power sources are required. The motor includes a cylinder block having a plurality of radially extending cylinders open at their outer ends to radially extending passages and having exhaust ports open when associated pistons are adjacent their bottom dead center positions. Such passages extend to a valve system provided on the crank of the motor which functions to supply compressed gas to selected cylinders while connecting other cylinders together so that gas is exhausted from cylinders containing extending pistons to open exhaust ports in other cylinders. This minimizes back pressure to resist motor operation. The crank is formed of two generally cylindrical members and can be produced without eccentric machining or grinding operations. A simple cylindrical head gasket, which is compressed against the periphery of the cylinder block, closes the cylinders and is held in place by a shrink-fitted ring. Peripherally extending inclined slots are formed in the cylinder wall for exhausting gas from the motor into a circular manifold chamber through which the gas is exhausted from the motor. The manifold chamber is provided with enlarged portions adjacent to each exhaust port which reduce exhaust noise. Some embodiments provide motors without master piston rods. Such embodiments provide wrist plates connected to offset piston rods to provide improved starting and running torque.
    • 公开了一种径向活塞和气缸压缩气体电动机,其特别适用于需要经济电源的场合。 马达包括一个气缸体,其具有多个径向延伸的气缸,在其外端开放到径向延伸通道,并且当相关的活塞邻近其下止点位置时,排气口打开。 这种通道延伸到设置在马达的曲柄上的阀系统,其功能是将压缩气体供应到选定的气缸,同时将其它气缸连接在一起,使得气体从包含延伸活塞的气缸排出到其它气缸中的排气口。 这最大限度地减少了抵抗电机运行的背压。 曲柄由两个通常为圆柱形的构件形成,并且可以在没有偏心加工或研磨操作的情况下制造。 一个简单的圆柱形头垫片被压靠在气缸体的周边上,使气缸闭合,并通过一个收缩环保持在适当位置。 在气缸壁中形成有外围延伸的倾斜槽,用于将气体从电动机排出到圆形歧管室中,气体通过该歧管室从电动机排出。 歧管室设置有与每个排气口相邻的放大部分,其减少排气噪声。 一些实施例提供没有主活塞杆的电动机。 这样的实施例提供连接到偏移活塞杆的腕板,以提供改进的启动和运行扭矩。