Fuel-injection valve
OwnerGuenter Dantes, Detlef Nowak +1inventors
InventorsGuenter Dantes, Detlef Nowak, Joerg Heyse
Life of this patent
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Abstract
A fuel injector for fuel-injection systems of internal combustion engines includes an excitable actuator, a valve needle, which is in operative connection with the actuator and acted upon in a closing direction by a restoring spring to actuate a valve-closure member, which, together with a valve-seat surface formed on a valve-seat body, forms a sealing seat; and having at least one spray-discharge orifice which is formed in the valve-seat body. A guide region, which is formed in the valve-seat member and in which the valve-closure member is guided, is configured in such a way that it tapers conically in a flow direction of the fuel.
Claims12
1-11. (canceled)
A fuel injector for a fuel-injection system of an internal combustion engine, comprising:
- a restoring spring;
- a valve closure member;
- an energizable actuator;
- a valve needle, which is in operative connection with the actuator and acted upon in a closing direction by the restoring spring to actuate the valve-closure member, which, together with a valve-seat surface formed on a valve-seat body, forms a sealing seat;
- and
- at least one spray-discharge orifice, which is formed downstream from the sealing seat, wherein a guide region, which is formed in the valve-seat body and in which the valve-closure member is guided, tapers conically in a flow direction of fuel.
Dependencies are inferred from the claim text.