Special features for fuel-injection valves actuated by fluid pressure

Child Classifications

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• F02M 2547/001 Control chambers formed by movable sleeves
• F02M 2547/003 Valve inserts containing control chamber and valve piston
• F02M 2547/005 Fuel injectors without fuel return, i.e. the pressure in the control chamber is released into the combustion chamber with fluid flow only in one direction
• F02M 2547/006 Springs assisting hydraulic closing force
• F02M 2547/008 Means for influencing the flow rate out of or into a control chamber, e.g. depending on the position of the needle