Filter for a fluid injection valve and a fluid injection valve
AssigneeVitesco Technologies GmbH
InventorsIvano Izzo, Fabio Pacchini, Filippo Falaschi
Life of this patent
Estimating the term…
Abstract
Various embodiments include an adjusting filter for a fluid injector valve comprising: an elongate filter sleeve having an inlet and an outlet; and a filter insert. The filter sleeve includes a filter accepting section at the inlet, a press-fit section, a centring section at the outlet, and a spring engaging surface surrounding the outlet. The press-fit section is arranged between the filter accepting section and the centring section. The filter insert is arranged in the filter accepting section. The filter accepting section has an outer diameter smaller than an outer diameter of the press-fit section. The centring section has an outer diameter smaller than the outer diameter of the press-fit section.
Claims15
An adjusting filter for a fluid injector valve, the filter comprising:
- an elongate filter sleeve comprising a hollow cylinder having an inlet and an outlet;
- wherein an external radial portion of the filter sleeve includes a filter accepting section surrounding the inlet, a press-fit section, a centring section surrounding the outlet, and an axial end portion of the filter sleeve includes a rounded corner and an extended disk spring engaging surface surrounding the outlet;
- wherein the press-fit section is arranged between the filter accepting section and the centring section;
- and
- a filter insert arranged in the filter accepting section;
- wherein the filter accepting section, the press-fit section, and the centring section share an integrated outer wall with a substantially constant thickness;
- wherein the filter accepting section has an outer diameter smaller than an outer diameter of the press-fit section;
- and
- wherein the centring section has an outer diameter smaller than the outer diameter of the press-fit section.
A fluid injector valve comprising:
- a valve body;
- an elongate filter sleeve comprising a hollow cylinder having an inlet and an outlet;
- wherein an external radial portion of the filter sleeve includes a filter accepting section surrounding the inlet, a press-fit section, a centring section surrounding the outlet, and an axial end portion of the filter sleeve includes a rounded corner and an extended disk spring engaging surface surrounding the outlet;
- wherein the press-fit section is arranged between the filter accepting section and the centring section;
- and
- a filter insert arranged in the filter accepting section;
- wherein the filter accepting section, the press-fit section, and the centring section share an integrated outer wall with a substantially constant thickness;
- wherein the filter accepting section has an outer diameter smaller than an outer diameter of the press-fit section;
- and
- wherein the centring section has an outer diameter smaller than the outer diameter of the press-fit section;
- wherein the press-fit section is press-fit into the valve body.
Dependencies are inferred from the claim text.