| 摘要 |
<p>The invention relates to a control valve arrangement for use in controlling fuel pressure within a control chamber (30). The control valve arrangement comprises a control valve member (32), first restricted flow means (55) and second restricted flow means (74). The control valve member (32) is movable between a first position, and a second position. The first restricted flow means (55) is arranged to maintain a first pressure upstream of the first restricted flow means (55) when the control valve member (32) is in transition between the first position and the second position. The second restricted flow means (74) is situated downstream of the first restricted flow means (55) and is arranged to maintain a second pressure upstream of the second restricted flow means (74). The second restricted flow means (74) is dimensioned and located relative to the first restricted flow means (55) such that in transition between the first and second positions the net force exerted on the control valve member (32) by the first pressure balances the net force exerted on the control valve member (32) by the second pressure.</p> |
