公开(公告)号：US3084717A

公开(公告)日：1963-04-09

申请号：US68088857

申请日：1957-08-28

Applicant: PURCELL HOWARD M

Inventor： PURCELL HOWARD M

IPC: F15B1/24

CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/3151 ,  F15B2201/411 ,  F15B2201/4155

公开(公告)号：US3874270A

公开(公告)日：1975-04-01

申请号：US38987873

申请日：1973-08-20

Applicant: PURCELL HOWARD M

Inventor： PURCELL HOWARD M

IPC: F03C1/04 ,  F03C1/053 ,  F01B3/10

CPC classification number: F03C1/0419 ,  F03C1/0531

Abstract: A hydraulic motor of the radial piston type characterized in the provision of a housing having a plurality of radially extending cylinders in which pistons are radially reciprocable, said pistons being linked to the crankpin of a crankshaft journaled in said housing, and being successively communicated by valve means operated in timed relation to the rotation of the crankshaft with inlet and outlet ports of said housing so that during the power stroke of each piston, a succeeding piston is simultaneously communicated with the inlet port so as to produce a toggle joint force at the crankpin to provide a motor having increased torque and efficiency. The hydraulic motor herein is further characterized in that it has at least three equally spaced apart radial pistons linked to the crankpin of the crankshaft whereby, during rotation of the crankshaft, toggle joints as aforesaid are successively defined by the crankpin and the connecting rods of the first and second pistons, the second and third pistons, and the third and first pistons. The hydraulic motor herein is still further characterized in that the toggle joint force aforesaid at the crankpin for driving the crankshaft is initiated prior to the trailing piston reaching its top dead center position at which time it is pressurized and is continued until the leading pressurized piston has passed its bottom dead center position at which time pressure thereon is released to the outlet port.

Abstract translation: 一种径向活塞式液压马达，其特征在于提供了一个壳体，该壳体具有多个径向延伸的气缸，其中活塞可径向往复运动，所述活塞连接到轴颈在所述壳体中的曲轴的曲柄销，并且连续地通过阀 该装置以与所述壳体的入口和出口的曲轴的旋转定时关联的方式操作，使得在每个活塞的动力冲程期间，随后的活塞同时与入口连通，以便在曲柄销处产生肘关节力 以提供具有增加的扭矩和效率的电动机。 这里的液压马达的特征还在于，它具有至少三个相等间隔的径向活塞，其连接到曲轴的曲柄销，由此在曲轴旋转期间，如上所述的肘节接头由曲柄销和连杆 第一和第二活塞，第二和第三活塞，以及第三和第一活塞。 这里的液压马达的特征还在于，在用于驱动曲轴的曲柄销处处的上述肘节关节力在后活塞到达其上止点位置之前启动，此时其被加压并持续直到前加压活塞具有 通过其下死点位置，此时将压力释放到出口。