Alignment element for an injector

Patent metadata

Field	Value
Publication number	US-10138856-B2
Application number	US-201715412259-A
Country	US
Kind code	B2
Filing date	Jan 23, 2017
Priority date	Oct 18, 2011
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A method for manufacturing an injector having an extrusion coating, including the following steps: providing an injection module, pushing a disk-shaped alignment element onto a part of the injection module, the alignment element having a slot in order to have sufficient flexibility, welding the alignment element onto the part of the injection module, at least part of the slot also being welded shut at the same time during the welding-on step in order to stiffen the alignment element, and molding the extrusion coating onto the injection module.

First claim

What is claimed is:

1. An alignment element for an injector, comprising:
a collar extending in an axial direction of the alignment element;
a base area radially adjoining the collar;
an edge area radially adjoining the base area;
a central through opening delimited by the collar;
at least one first slot oriented in a radial direction and extending radially outwardly from the through opening, wherein the slot has a continuous design in the axial direction; and
a tongue adjoining the edge area and protruding into the at least one first slot,
wherein the tongue is bent from the edge area toward the axial direction.

2. The alignment element as recited in claim 1 , further comprising at least one second slot oriented in a peripheral direction, the at least one first slot and the at least one second slot forming a continuous design in the axial direction.

3. The alignment element as recited in claim 2 , wherein the at least one first slot and the at least one second slot intersect.

4. The alignment element as recited in claim 3 , wherein the tongue protrudes into the at least one second slot.

5. The alignment element as recited in claim 4 , further comprising at least one of a first tab and a second tab situated on the base area, adjacent to the tongue.

6. The alignment element as recited in claim 2 , further comprising at least one of a third slot oriented in the radial direction and a fourth slot oriented in the peripheral direction, at least one of the third slot and the fourth slot having a continuous design in the axial direction.

7. The alignment element as recited in claim 1 , wherein the base area is inclined at an angle with respect to a base plane of the alignment element.

8. An injector, comprising:
an alignment element for an injector, comprising:
a collar extending in an axial direction of the alignment element;
a base area radially adjoining the collar;
an edge area radially adjoining the base area;
a central through opening delimited by the collar; and
at least one first slot oriented in a radial direction and extending radially outwardly from the through opening, wherein the slot has a continuous design in the axial direction;
an extrusion coating having an alignment surface; and
a tongue adjoining the edge area and protruding into the at least one first slot,

wherein the tongue is bent from the edge area toward the axial direction.

Assignees

• Bosch Gmbh Robert

Inventors

• Scheffel Martin
• Bormann Axel
• Wieschollek Sebastian

Classifications

• F02M2200/8015

  Provisions for assembly of fuel injection apparatus in a certain orientation, e.g. markings, notches or specially shaped sleeves other than a clip · CPC title

• F02M2200/8023

  the assembly involving use of quick-acting mechanisms, e.g. clips · CPC title

• F02M61/168 Primary

  Assembling; Disassembling; Manufacturing; Adjusting · CPC title

• F02M2200/8084

  involving welding or soldering · CPC title

• F02M2200/8061

  involving press-fit, i.e. interference or friction fit · CPC title