| 摘要 |
<p>Passages 44, 46, 48, 50 in either the pintle bridges 28, 30 or the rotor of a radial piston pump or motor connect each cylinder 40 to the supply and return zones 18, 20 of the pintle shaft during the parts of each cylinder cycle when the rotor ports are otherwise closed by the bridges 28, 30 but are not at the dead centre positions. The passages provide controlled fluid flow to and from each cylinder, thus reducing cavitation and fluid and mechanical noise. <IMAGE></p> |
