| 摘要 |
<p>A flow control valve having a piston (1072) and valve element (1074) connected together by a portion of a spring also connected to a pressure relief mechanism (1112). Also disclosed is an alternative embodiment featuring a passage (1152) delivering metered flow from an input passage (1142) to a low pressure end (1166) of a piston (1072) and then through a pressure sensing means (1168) from the low pressure chamber (1166) to an output passage (1156). A valving sub-assembly (1072) is movable to substantially suppress the flow rate ripple by bypassing a dominant portion of the flow rate ripple.</p> |
