Element of an Exhaust Line Comprising Valve with Added Stoppers

• US 20170089270A1
• Filed: 09/28/2016
• Published: 03/30/2017
• Est. Priority Date: 09/30/2015
• Status: Active Grant

• Current Assignee: Faurecia Systemes D'Echappement (Faurecia SA)
• Original Assignee: Faurecia Systemes D'Echappement (Faurecia SA)
• Inventors: Viardot, Laurent, Royer, Sebastien, Delplanque, Gilbert, Oblinger, Benjamin
• Granted Patent: US 10,167,785 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F01N 1/18 having rotary movement
• CPC Class Codes: F01N 13/087 having valves upstream of silencing apparatus for by-passing at least part of exhaust directly to atmosphere valves for changing gas flow path through the silencer F01N1/166
• CPC Class Codes: F01N 13/1805 Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body pipe joints in general F16L; fixing auxiliaries in motor vehicles in general B60K
• CPC Class Codes: F01N 2240/36 an exhaust flap
• CPC Class Codes: F02D 9/101 Special flap shapes, ribs, bores or the like
• CPC Class Codes: F02D 9/1045 for sealing of the flow in closed flap position, e.g. the housing forming a valve seat
• CPC Class Codes: F16K 1/22 with axis of rotation crossing the valve member, e.g. butterfly valves
• CPC Class Codes: F16K 1/222 Shaping of the valve member
• CPC Class Codes: F16K 27/0218 Butterfly valves

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.

Claims

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;

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 the first stopper defines a longitudinal position of at least one of the upstream tube and 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.

7. 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.

8. 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.

9. 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.

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

around the longitudinal axis.

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

12. 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.

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

14. 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°

.