Exhaust-gas switch for a vehicle

Patent metadata

Field	Value
Publication number	US-10711739-B2
Application number	US-201816200243-A
Country	US
Kind code	B2
Filing date	Nov 26, 2018
Priority date	Dec 1, 2017
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

Described is an exhaust-gas switch, in particular for trucks, having a housing that has an inlet, a first outlet and a second outlet, having a shaft led out from the housing, and having a valve flap arranged in the housing that is pivotable about a geometric pivot axis by means of the shaft between a first position and a second position, the valve flap having a blocking portion that in the first position blocks the first outlet and in the second position blocks the second outlet. According to this disclosure, provision is made such that the valve flap bears a counterweight to the blocking portion, the geometric pivot axis being arranged between the blocking portion and the counterweight.

First claim

What is claimed is:

1. An exhaust-gas switch, comprising:
a housing having an inlet, a first outlet and a second outlet;
a shaft extending from the housing; and
a valve flap arranged in the housing and being pivotable about a geometric pivot axis between a first position and a second position via the shaft;
wherein the valve flap defines a blocking portion that in the first position blocks the first outlet and in the second position blocks the second outlet;
wherein the valve flap bears a counterweight to the blocking portion, the geometric pivot axis being arranged between the blocking portion and the counterweight; and
wherein the valve flap comprises two superimposed sheet metal discs, between which a portion of the shaft is held and wherein the counterweight is arranged between the two sheet metal discs.

2. The exhaust-gas switch according to claim 1 , wherein the sheet metal discs include corrugations and at least one of the corrugations is configured as a recess in which a cut-out is arranged.

3. The exhaust-gas switch according to claim 1 , wherein the sheet metal discs are of identical construction.

4. The exhaust-gas switch according to claim 1 , wherein the counterweight is a pin arranged parallel to the geometric pivot axis.

5. The exhaust-gas switch according to claim 1 , wherein the valve flap tapers in a wedge-shape on the side of the geometric pivot axis facing away from the counterweight.

6. The exhaust-gas switch according to claim 1 , wherein during the pivot movement effected by the valve flap, the counterweight has a moment of inertia that is at least 15% of the moment of inertia of the blocking portion.

7. An exhaust-gas switch, comprising:
a housing having an inlet, a first outlet and a second outlet;
a shaft extending from the housing; and
a valve flap arranged in the housing and being pivotable about a geometric pivot axis between a first position and a second position via the shaft;
wherein the valve flap defines a blocking portion that in the first position blocks the first outlet and in the second position blocks the second outlet;
wherein the valve flap bears a counterweight to the blocking portion, the geometric pivot axis being arranged between the blocking portion and the counterweight; and
wherein the valve flap comprises two superimposed sheet metal discs, between which a portion of the shaft is held and wherein the two sheet metal discs have cut-outs, each of the cut-outs of one of the two sheet metal discs being covered by the respective other sheet metal disc.

8. An exhaust-gas switch, comprising:
a housing having an inlet, a first outlet and a second outlet;
a shaft extending from the housing; and
a valve flap arranged in the housing and being pivotable about a geometric pivot axis between a first position and a second position via the shaft;
wherein the valve flap defines a blocking portion that in the first position blocks the first outlet and in the second position blocks the second outlet;
wherein the valve flap bears a counterweight to the blocking portion, the geometric pivot axis being arranged between the blocking portion and the counterweight; and
wherein the valve flap comprises two superimposed sheet metal discs, between which a portion of the shaft is held and wherein the sheet metal discs are stiffened in the blocking portion by corrugations.

9. The exhaust-gas switch according to claim 8 , wherein the depth of the corrugations decreases as the distance from the geometric pivot axis increases.

10. An exhaust-gas switch, comprising:
a housing having an inlet, a first outlet and a second outlet;
a shaft extending from the housing; and
a valve flap arranged in the housing and being pivotable about a geometric pivot axis between a first position and a second position via the shaft;
wherein the valve flap defines a blocking portion that in the first position blocks the first outlet and in the second position blocks the second outlet;
wherein the housing defines a first flow channel extending from the inlet to the first outlet when the blocking portion is in the second position and the housing defines a second flow channel extending from the inlet to the second outlet when the blocking portion is in the first position;
wherein the valve flap bears a counterweight to the blocking portion, the geometric pivot axis being arranged between the blocking portion and the counterweight; and
wherein the counterweight is arranged in a side room of the housing, which side room is arranged outside of and next to the first and second flow channels.

Assignees

• Borgwarner Ludwigsburg Gmbh

Inventors

• Neumann Till
• Baumann Markus
• Wagner Markus
• Bareis Bernd

Classifications

• F16K11/052

  with pivoted closure members, e.g. butterfly valves · CPC title

• F16K27/0209

  Check valves or pivoted valves · CPC title

• F02M26/71

  Multi-way valves · CPC title

• F02M26/70 Primary

  Flap valves; Rotary valves; Sliding valves; Resilient valves · CPC title

• F16K11/0525

  the closure members being pivoted around an essentially central axis · CPC title