| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem of a double-sided radial pump, having parallel selector valve ports provided with two pairs of built-in piston pumps that bearing performance and intake performance deteriorating by the storing stress due to the high pressure working to a selector port on a pintle sector valve and deformation with the strong stress. SOLUTION: In the double-sided radial piston pump provided with two pairs of built-in pumps, two pair of cylinder blocks are installed in a pintle selector valve, formed into symmetry in front and rear thereof and fixed to a casing block having an outside connection port for discharging. The front cylinder block is driven by a main drive shaft, and the rear cylinder block is driven by a rear drive shaft passing through a front and a rear pintle selector valve shafts connected to the main drive shaft and passing through an intake passage inside of the pintle selector valve shaft. With this structure, the strength of the driving shaft can be increased and the area of an intake passage can be increased. The compact-double sided radial piston pump provided with two built-in pumps arranged into symmetry in front and rear and possible to be separately controlled is thereby provided.</p> |
