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    • 2. 发明公开
    • FLUID POWERED MOTOR OR PUMP
    • 流体驱动马达或泵
    • EP1882098A1
    • 2008-01-30
    • EP06727028.0
    • 2006-05-09
    • Brisland, Michael John
    • Brisland, Michael John
    • F04B1/20
    • F04B1/2021F04B1/2078Y10T74/18304
    • A low pressure fluid powered motor or pump comprises a non-rotatable cover (k); an undulating lobe cam track (e) attached to the cover (k) and defining multiple crests and troughs; a rotatable cylinder block (c); at least three reciprocable pistons (d) each housed within a bore of the cylinder block (c) and each providing at one end a crown (d1), and at the other end a spherical seating cup (d2); a ball (f), adapted to engage with the cam track (e); a non-rotatable manifold block (n) incorporating a plurality of ports (s), each being radially disposed at equal intervals in an end face of the manifold block adjacent the pistons (d), with the ports (s) linked to galleries connected to a higher pressure delivery circuit, and a lower pressure return circuit, with the angular arrangement of the ports (s) being such that the higher pressure is supplied to the crown (d1) of each piston (d) only whilst the piston (d) is moving from a crest to a trough of the cam track (e), with a switch to the lower fluid pressure circuit as continued rotation of the cylinder block (c) moves a piston (d) from a trough to a crest; an output/input shaft (a) connected to the cylinder block (c); and a rotary shaft-mounted, spring biased commutation, multi-ported face plate (i) interposed between the cylinder block and the manifold block.
    • 低压流体动力马达或泵包括不可旋转的盖(k); (e)附接到盖(k)并限定多个波峰和波谷的波形凸轮凸轮轨道(e); 一个可旋转的气缸体(c); 至少三个可往复运动的活塞(d),每个容纳在缸体(c)的孔内并且每个在一端提供冠部(d1),并且在另一端提供球形座杯(d2); 球(f),其适于与所述凸轮轨道(e)接合; 包括多个端口的不可旋转的歧管块(n),每个端口以相等的间隔径向地设置在歧管块的邻近活塞(d)的端面中,其中端口连接到相连的通道 到较高压力输送回路和较低压力返回回路,其中一个或多个端口的角度布置使得较高压力仅在活塞(d)被供应到每个活塞(d)的冠部(d1) )随着汽缸体(c)的继续旋转使活塞(d)从槽移动到顶部而切换到下部流体压力回路从凸轮轨道(e)的顶部移动到凹槽; 连接到气缸体(c)的输出/输入轴(a); 和安装在气缸体和歧管块之间的旋转轴安装的弹簧偏置换向多孔面板(i)。