| 摘要 |
<p>PURPOSE:To shorten the length of a pump so as to make the weight lighter by arranging a manifold and a delivery valve in the radial outside of cylinder members. CONSTITUTION:A manifold 66 is fixed detachably to the top side of a crank case 10, and an opening 68 is provided in the end face portion on the top side, and in the upper portion of a side portion, a suction opening 70 and a discharge opening 72 are provided in parallel from the crank case 10 side. A cover 74 is attached detachably to the end face portion on the top side of the manifold 66 by bolts 76 so as to close the opening 68. In suction stroke, a delivery valve 84 stays, and the valve seat 30 of a suction valve 26 is in contact with a stopper 34, and liquid from the suction opening 70 flows to a pump chamber 82 through a space between a valve disc 28 and the valve seat 30, the inner circumferential side of the valve seat 30 and a through hole 40. In discharge stroke, liquid in the pump chamber 82 is pressedly sent to the discharge opening 72 through the through hole 86 of a valve seat 88.</p> |
