Fuel injection valve
OwnerMichael Huebelinventor
Life of this patent
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Abstract
A fuel injection valve (1) for fuel injection systems of internal combustion engines comprises a valve needle (3) and a valve closure element (4), in working engagement therewith, that coacts with a valve seating surface (6) arranged in a valve seat element (5) to form a sealing seat; and multiple spray discharge openings (7) downstream from the sealing seat. Spray discharge of the fuel from at least one spray discharge opening (7) can be switched off at least temporarily, and the spray discharge of fuel from a particular spray discharge opening (7) is switched off by local vaporization of fuel, by way of a respective local heating element (44) that is arranged upstream of the respective spray discharge opening (7) on a surface (43) delimiting the flow path.
Claims8
A fuel injection valve for fuel injection systems of internal combustion engines, having a valve needle (3) and a valve closure element (4), in working engagement therewith, that coacts with a valve seating surface (6) arranged in a valve seat element (5) to form a sealing seat, and having multiple spray discharge openings (7) downstream from the sealing seat, spray discharge of the fuel from at least one spray discharge opening (7) being capable of being switched off at least temporarily, wherein for switching off the spray discharge of fuel from a particular spray discharge opening (7) by local vaporization of fuel, a local heating element (44) is arranged in each case upstream of the respective spray discharge opening (7) on a surface (43) delimiting the flow path.
Dependencies are inferred from the claim text.