Fuel injection system having a fuel-conducting component, a fuel injection valve and a connection element

Patent metadata

Field	Value
Publication number	US-9797355-B2
Application number	US-201414761354-A
Country	US
Kind code	B2
Filing date	Jan 14, 2014
Priority date	Jan 18, 2013
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A connecting element connecting a fuel injection valve to a fuel-conducting component includes: a main body having a receptacle space into which a fuel connector of the fuel injection valve is introduced; and a fastening element. At least one opening is provided in a wall of the main body surrounding the receptacle space. The fastening element for fastening the fuel connector on the main body is brought into the receptacle space at least partly through the at least one opening. At least one elastic bearing element is provided, and the fastening element brought at least partly through the opening into the receptacle space is supported on the wall of the main body via the at least one elastic bearing element.

First claim

What is claimed is:

1. A connecting element for connecting a fuel injection valve to a fuel-conducting component, comprising:
a main body having a receptacle space into which a fuel connector of the fuel injection valve is at least partly introduced, wherein at least one opening is provided in a wall of the main body surrounding the receptacle space, the at least one opening including a first bore which extends from an outer side of the wall into the receptacle space;
a fastening element configured to be brought into the receptacle space at least partly through the first bore for the fastening of the fuel connector on the main body; and
at least one elastic bearing element, wherein the fastening element brought into the receptacle space partly through the first bore is supported on the wall of the main body via the at least one elastic bearing element, the at least one elastic bearing element extending through the first bore.

2. The connecting element as recited in claim 1 , wherein the at least one elastic bearing element is situated at the at least one opening provided in the wall of the main body.

3. The connecting element as recited in claim 2 , wherein the at least one elastic bearing element is configured as a first sleeve-shaped elastic bearing element, and the first sleeve-shaped elastic bearing element extends at least along the first bore through the wall.

4. The connecting element as recited in claim 3 , wherein the first sleeve-shaped elastic bearing element extends essentially only along the first bore through the wall.

5. The connecting element as recited in claim 3 , wherein:
the fastening element has at least a first rod-shaped arm;
a second opening formed by a second bore is provided in the wall of the main body, the second bore extending from the outer side of the wall into the receptacle space;
the first bore and the second bore are situated on a common insertion axis for the first rod-shaped arm of the fastening element;
a second sleeve-shaped elastic bearing element extending along the second bore through the wall is provided;
the first rod-shaped arm of the fastening element is configured to be guided along the common insertion axis through the first bore and through the second bore; and
the first rod-shaped arm of the fastening element, guided through the first bore and through the second bore, is supported on the wall of the main body via the first sleeve-shaped elastic bearing element and the second sleeve-shaped elastic bearing element.

6. The connecting element as recited in claim 5 , wherein:
the fastening element has a second rod-shaped arm;
a third opening formed by a third bore in the wall of the main body and a fourth opening formed by a fourth bore in the wall of the main body are provided;
the third bore and the fourth bore extend from the outer side of the wall into the receptacle space;
the third bore and the fourth bore are situated on a further common insertion axis for the second rod-shaped arm of the fastening element;
a third sleeve-shaped elastic bearing element extending along the third bore through the wall is provided;
a fourth sleeve-shaped elastic bearing element extending along the fourth bore through the wall is provided;
the second rod-shaped arm of the fastening element is guided along the further common insertion axis through the third bore and through the fourth bore; and
the fastening element guided through the third bore and through the fourth bore is supported on the wall of the main body via the third sleeve-shaped elastic bearing element and the fourth sleeve-shaped elastic bearing element.

7. The connecting element as recited in claim 6 , wherein at least one of: (i) the fastening element is a U-shaped fastening element, (ii) the insertion axis and the further insertion axis are oriented at least approximately parallel to one another, (iii) the insertion axis is oriented at least approximately perpendicular to an axis of the receptacle space, and (iv) the further insertion axis is oriented at least approximately perpendicular to the axis of the receptacle space.

8. The connecting element as recited in claim 7 , wherein at least the first rod-shaped arm and the second rod-shaped arm of the fastening element are formed of a metallic material.

9. The connecting element as recited in claim 1 , wherein the elastic bearing element is provided on an inner side of the wall of the main body.

10. A connecting element for connecting a fuel injection valve to a fuel-conducting component, comprising:
a main body having a receptacle space into which a fuel connector of the fuel injection valve is at least partly introduced, wherein at least one opening is provided in a wall of the main body surrounding the receptacle space;
a fastening element configured to be brought into the receptacle space at least partly through the at least one opening for the fastening of the fuel connector on the main body; and
at least one elastic bearing element, wherein the fastening element brought into the receptacle space partly through the at least one opening is supported on the wall of the main body via the at least one elastic bearing element,
wherein the main body has an opening via which the fuel connector is guided into the receptacle space, the wall of the main body has an annular end face which surrounds the opening via which the fuel connector is guided into the receptacle space, and the elastic bearing element extends from an outer side of the wall via the annular end face of the wall to the inner side of the wall.

11. The connecting element as recited in claim 10 , wherein the first elastic bearing element extends circumferentially over the inner side of the wall.

12. A fuel injection system, comprising:
at least one fuel-conducting component;
at least one fuel injection valve; and
at least one connecting element connecting the fuel injection valve to the fuel-conducting component, the at least one connecting element including:
a main body having a receptacle space into which a fuel connector of the fuel injection valve is at least partly introduced, wherein at least one opening is provided in a wall of the main body surrounding the receptacle space, the at least one opening including a first bore which extends from an outer side of the wall into the receptacle space;
a fastening element configured to be brought into the receptacle space at least partly through the first bore for the fastening of the fuel connector on the main body; and
at least one elastic bearing element, wherein the fastening element brought into the receptacle space partly through the first bore is supported on the wall of the main body via the at least one elastic bearing element, the at least one elastic bearing element extending through the first bore.

Assignees

• Bosch Gmbh Robert

Inventors

• Reinhardt Wilhelm
• Scheef Volker
• Mayer Michael
• Rehwald Andreas
• Herrmann Jan
• Rogler Philipp
• Glaser Andreas
• Horst Hans-Georg
• Riemer Martin
• Knorpp Michael
• Fischer Michael

Classifications

• F16L37/1225

  using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts · CPC title

• F02M61/14 Primary

  Arrangements of injectors with respect to engines; Mounting of injectors · CPC title

• F02M55/025

  Common rails · CPC title

• F02M2200/853

  involving use of quick-acting mechanism, e.g. clips · CPC title

• F02M2200/09

  Fuel-injection apparatus having means for reducing noise · CPC title