| 摘要 |
PURPOSE:To permit to minimize the leakage of operating oil by a method wherein the operating point of resultant separating force is displaced in accordance with the characteristics of the liquid operated rotary machine to close the operating point of a force acting between a seal land and a cylinder block. CONSTITUTION:The separating force shows a distribution in which it is increased from a lower dead point position toward the upper dead point position, therefore, the operating point of the resultant of the separating force FA displaces to the side of the upper dead point and positions near the operating point L2 of the resultant force of pressing force plus an external force FB, accordingly, the moment, acting on the cylinder block 4, becomes small. As a result, the sliding effect under close contact between the cylinder block 4 and the distributing valve 21 is improved, the leakage of the operating oil may be minimized and the volumetric efficiency of the machine may be improved. |
