US 11,499,513 B2 · Injector for injecting fuel

Abstract

A fuel injector having a seat plate with a passage throttle; a valve insert arranged at a first side of the seat plate; a valve guide surrounding the valve insert and adapted for slidable reception of the valve insert; a spring sheath surrounding at least a section of a jet needle arranged at a second side of the valve insert, the second side opposite the first side and the seat plate; a valve chamber fluidly connected to the passage throttle; a control chamber adapted for reception of fuel; and a line arranged in the valve insert connecting the control chamber and the valve chamber to one another, wherein the line is closeable by placement of the valve insert onto the spring sheath.

Claims20

Dependent claims

An injector for injecting fuel comprising:

a seat plate having a passage throttle;
a valve insert that is arranged at one of the areal sides of the seat plate;
a valve guide for the slidable reception of the valve insert;
a jet needle that is arranged at the side of the valve insert disposed opposite the seat plate;
a spring sheath that surrounds a section of the jet needle;
a valve chamber for the reception of fuel, wherein the valve chamber is bounded by the seat plate, the valve guide, and the valve insert and extends up to the passage throttle of the seat plate;
a control chamber for the reception of fuel, wherein the control chamber is bounded by the valve insert, the valve guide, the spring sheath, and the jet needle;
and
a line that connects the control chamber and the valve chamber to one another, wherein
the line is arranged in the valve insert, and
the line is closed by a placement of the valve insert onto the spring sheath.

8 more elements

Dependencies are inferred from the claim text.

Injector for injecting fuel

Life of this patent

Injector for injecting fuel

Life of this patent

Abstract

Claims20