Element of an exhaust line comprising valve with added stoppers

Patent metadata

Field	Value
Publication number	US-10167785-B2
Application number	US-201615278069-A
Country	US
Kind code	B2
Filing date	Sep 28, 2016
Priority date	Sep 30, 2015
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

An exhaust line element comprises a valve body, a shutter, a pivot link connecting the shutter to the valve body, an upstream tube, and a downstream tube. At least one first stopper is attached on an inner surface of the valve body. The shutter abuts against the first stopper in the closing off position. The first stopper defines a longitudinal position of at least one of the upstream tube and the downstream tube relative to the valve body.

First claim

The invention claimed is:

1. An exhaust line element comprising:
a tubular valve body inwardly defining a passage for exhaust gases, the tubular valve body having a longitudinal central axis;
a shutter positioned in the passage;
a pivot link connecting the shutter to the tubular valve body, and arranged such that the shutter is rotatable around a rotation axis between a first position closing off the passage and a second position freeing the passage;
an upstream tube and a downstream tube between which the valve body is inserted, the passage fluidly connecting the upstream tube to the downstream tube, the upstream tube and the downstream tube being located respectively at predetermined first and second longitudinal positions with respect to the valve body;
at least one first stopper attached on an inner surface of the valve body, the shutter abutting against the first stopper in the first position;
wherein at least one of the upstream tube and the downstream tube abuts longitudinally against the first stopper, and wherein the first stopper defines the first longitudinal position of the upstream tube or the second longitudinal position of the downstream tube relative to the valve body.

2. The exhaust line element according to claim 1 , including a second stopper attached on the inner surface of the valve body, the second stopper defining the longitudinal position of the other of the upstream tube and the downstream tube relative to the valve body.

3. The exhaust line element according to claim 1 , wherein the first stopper is a plate comprising a main segment pressed against the inner surface, the main segment having a first rim, the shutter abutting against the first rim in the first position.

4. The exhaust line element according to claim 1 , wherein the first stopper comprises a main segment pressed against the inner surface and a first edge secured to the main segment, the first edge protruding toward the longitudinal central axis relative to the main segment, the shutter abutting against the first edge in the first position.

5. The exhaust line element according to claim 1 , wherein the first stopper is a plate comprising a main segment pressed against the inner surface, and wherein the upstream tube or the downstream tube abuts against a second rim of the main segment.

6. The exhaust line element according to claim 5 , wherein the upstream tube or the downstream tube abuts against a single point of the second rim.

7. The exhaust line element according to claim 5 , wherein the upstream tube or the downstream tube abuts against at least two points of the second rim.

8. The exhaust line element according to claim 1 , wherein the first stopper comprises a main segment pressed against the inner surface and an edge secured to the main segment, the edge protruding toward the longitudinal central axis relative to the main segment, and wherein the upstream tube or the downstream tube abuts against the edge.

9. The exhaust line element according to claim 3 , wherein the main segment extends over at least 60° around the longitudinal axis.

10. The exhaust line element according to claim 1 , wherein the shutter abuts against the first stopper in the second position.

11. The exhaust line element according to claim 10 , wherein the first stopper is a plate comprising a main segment pressed against the inner surface and a narrower end part secured to the main segment, the narrower end part having a reduced longitudinal width relative to the main segment, the shutter abutting against the narrower end part with a reduced width in the second position.

12. The exhaust line element according to claim 11 , wherein the narrower end part is separated from the inner surface.

13. The exhaust line element according to claim 1 , wherein the first position of the shutter is deduced from the second position by a rotation of the shutter around the rotation axis by an angle comprised between 45° and 85°.

14. The exhaust line element according to claim 1 , wherein at least one of the upstream tube and downstream tube has a longitudinal end that is inserted inside the tubular valve body.

15. The exhaust line element according to claim 1 , wherein the tubular valve body has a first longitudinal tubular end and a second longitudinal tubular end opposite of the first longitudinal tubular end, and wherein a longitudinal end of the upstream tube is inserted in one of the first and second longitudinal tubular ends and is pressed against an inner surface of the one of the first and second longitudinal tubular ends.

16. The exhaust line element according to claim 1 , wherein the tubular valve body has a first longitudinal tubular end and a second longitudinal tubular end opposite of the first longitudinal tubular end, and wherein a longitudinal end of the downstream tube is inserted in one of the first and second longitudinal tubular ends and is pressed against an inner surface of the one of the first and second longitudinal tubular ends.

17. The exhaust line element according to claim 1 , wherein the upstream tube has a longitudinal end defining a rim that abuts longitudinally against the first stopper.

18. The exhaust line element according to claim 1 , wherein the downstream tube has a longitudinal end defining a rim that abuts longitudinally against the first stopper.

19. The exhaust line element according to claim 1 , wherein the tubular valve body has a first longitudinal tubular end and a second longitudinal tubular end opposite of the first longitudinal tubular end, and wherein a longitudinal end of the upstream tube is surrounded by the first longitudinal tubular end and a longitudinal end of the downstream tube is surrounded by the second longitudinal tubular end, and wherein the longitudinal end of the upstream tube abuts directly against the first stopper.

20. The exhaust line element according to claim 19 , wherein the first stopper defines the first longitudinal position of the upstream tube, and including a second stopper attached on the inner surface of the tubular valve body wherein the longitudinal end of the downstream tube abuts directly against the second stopper to define the second longitudinal position of the downstream tube.

Assignees

• Faurecia Systemes Dechappement

Inventors

• Oblinger Benjamin
• Viardot Laurent
• Royer Sebastien
• Delplanque Gilbert

Classifications

• F01N1/18

  having rotary movement · CPC title

• F02D9/1045 Primary

  for sealing of the flow in closed flap position, e.g. the housing forming a valve seat · CPC title

• F16K1/222

  Shaping of the valve member · CPC title

• F16K1/22

  with axis of rotation crossing the valve member, e.g. butterfly valves · CPC title

• F16K27/0218

  Butterfly valves · CPC title