Control valve
A control valve and valve seat technology, which is applied to fuel injection valves, engine components, machines/engines, etc. driven by fluid pressure, can solve problems such as the adverse effect of control valve switching time, and achieve the effect of improving service life.
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[0034] figure 1 The fuel injector shown in has a nozzle body 25 and a holding body 26 which are axially clamped by means of a clamping nut, not shown. The nozzle body 25 and the holding body 26 are penetrated by a high-pressure bore 24 in which the nozzle needle 20 is accommodated in a reciprocating linear motion for releasing or closing the injection opening 27 . The high-pressure opening 24 is connected via a supply line 28 to a high-pressure accumulator 29 , via which fuel under high pressure is delivered to the high-pressure opening 24 .
[0035]The high-pressure bore 24 is delimited in the axial direction by the valve block 1 of the control valve for controlling the reciprocating linear movement of the nozzle needle 20 , which is inserted into the holding body 26 . The valve block 1 seals off the high-pressure opening 24 from the low-pressure chamber 10 which is formed within the valve body 11 of the control valve. Through the hole 15 of the valve body 11 and through th...
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