| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a radial piston pump capable of surely making a piston follow a cam surface, even if a flow rate to be sent is increased. <P>SOLUTION: This radial piston pump 10 has a cylindrical outer race 20 and a cylindrical inner race 30 arranged on its inside and relatively rotatably arranged to the outer race 20. A first cam 21 and a second cam 23 of an opposite phase of the first cam 21 are formed on an inner peripheral surface 20a of the outer race 20. The inner race 30 has a first cylinder 32 for inserting a first piston 31 reciprocatingly driven by the first cam 21 and arranging a wall part 33 so as to separately form an oil pressure chamber 37 for oil and an oil pressure chamber 38 for the first piston on the inside, a second cylinder 35 for inserting a second piston 40 reciprocatingly driven by the second cam 23 and forming an oil pressure chamber 41 for the second piston on the inside, and a communicating passage 36 for communication between the oil pressure chamber 38 for the first piston and the oil pressure chamber 41 for the second piston. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
