| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pump suitable for high feed pressure and mass-production at low cost. SOLUTION: This pump is formed so that a drive plate 5 is supported on an electric motor bearing race 7 through a rolling bearing 6, a swash plate 8 is supported on the drive plate 5 through a rolling bearing 9, and a pair of spring loaded pistons 10 are supported on the swash plate 8. The pistons 10 are inserted into the cylinder portions 11, and the cylinder portions 11 are inserted into a pump casing 12 to tighten a valve plate 13 between the pump casing 12 and the cylinder portion 11. The valve plate 13 comprises a connection path 14 for suction and discharge paths 15 and 16, the connection path 14 and the suction path 15 comprise check valves 17 and 18, respectively, and the cylinder portion 11 is loaded by the pump casing 12, and the pump casing 12 is loaded by a casing cover 19. Then, the casing cover 19 is loaded by a rounded pump casing wall 20, and the pump casing 12 and casing cover 19 comprise suction and discharge connection pipe pieces 21 and 22, respectively.</p> |
