| 摘要 |
<p>Alternating-piston pump of the fixed cylinder type which has a number of parallel pistons and the shafts of which are regularly distributed on a cylinder and which are held supported via their end outside the cylinder on a plate which rotates about the axis of said cylinder and is capable of being tilted around a shaft perpendicular to the aforesaid cylinder axis. According to the present invention, the surface part of the plate on which said ends of the pistons rest has, in a plane which passes through the axis of said cylinder and which is perpendicular to said articulation shaft of the plate, a circular track centred on the axis of the shaft. The present invention applies particularly to metering pumps.</p> |
