Fuel injector
AssigneeRobert Bosch GmbH
InventorsWolfgang Ruehle, Joachim Stilling, Martin Andorfer
Life of this patent
Estimating the term…
Abstract
A fuel injector for fuel injection systems of internal combustion engines has an actuator and a valve needle actuatable by the actuator, which valve needle is in turn coupled to, and actuates, a valve closing body. The valve closing body and a valve seat surface of a valve seat body form a sealing seat. At least one injection opening is formed in the valve seat body, and an elastic vibration element penetrates the injection opening. The elastic vibration element is attached on the inlet side of the injection opening and leaves a portion of cross-section of the injection opening free.
Claims7
A fuel injector for a fuel injection system of an internal combustion engine, comprising:
- an actuator;
- a valve needle actuatable by the actuator;
- a valve closing body coupled to the valve needle and actuatable by the valve needle;
- a valve seat body having a valve seat surface, wherein the valve closing body and the valve seat surface of the valve seat body form a sealing seat;
- at least one injection opening downstream from the valve seat surface;
- and
- an elastic vibration element attached on an inlet side of the at least one injection opening, wherein the vibration element penetrates the at least one injection opening and leaves a portion of cross-section of the at least one injection opening free, wherein the element is attached in a lateral recess on the inlet side of the injection opening.
Dependencies are inferred from the claim text.