Valve provided with a stabilizing member secured to the flap and exhaust line equipped with such a valve

Patent metadata

Field	Value
Publication number	US-2020003333-A1
Application number	US-201916452935-A
Country	US
Kind code	A1
Filing date	Jun 26, 2019
Priority date	Jun 27, 2018
Publication date	Jan 2, 2020
Grant date	—

Abstract

A valve comprises a flap, a tubular valve body defining an exhaust gas flow passage, and a device to guide the flap relative to the valve body to allow the flap to pivot relative to the valve body around a pivot axis between a closing position and a freed position of the exhaust gas flow passage. The flap has two large faces substantially parallel to one another and connected to one another by an edge of the flap. The guide device comprises a pin, a distal, end and a base. The valve also comprises a stabilizing member secured to the flap.

First claim

1 . A valve comprising:
a flap;
a tubular valve body defining an exhaust gas flow passage; and
a device to guide the flap relative to the valve body to allow the flap to pivot relative to the valve body around a pivot axis between a closing position and a freed position of the exhaust gas flow passage, the flap having two large faces substantially parallel to one another and connected to one another by an edge of the flap, the guiding device comprising a pin including:
a distal end, traversed by the pivot axis, bearing against the valve body, and a base, which
defines a bearing face opposite the distal end and traversed by the pivot axis, and
has at least one slot in which the edge of the flap is received,
and wherein the valve also comprises a stabilizing member secured to the flap, the stabilizing member having two protruding portions each protruding opposite the pivot axis relative to a respective one of the two large faces of the flap, each protruding portion being in contact with the bearing face of the pin.

2 . The valve according to claim 1 , wherein the or each protruding portion has a support face in contact with the bearing face of the pin, the support face being substantially planar.

3 . The valve according to claim 1 , wherein the bearing face of the pin is substantially planar.

4 . The valve according to claim 2 , wherein the bearing face of the pin is substantially planar and the support face is substantially parallel to the bearing face of the pin.

5 . The valve according to claim 3 , wherein the bearing face of the pin is substantially orthogonal to the pivot axis.

6 . The valve according to claim 3 , wherein the bearing face of the pin is inclined relative to the pivot axis, the bearing face forming, with the pivot axis, a minimal angle comprised between 30° and 60°.

7 . The valve according to claim 6 , wherein the bearing face forms, with the pivot axis, a minimal angle comprised between 40° and 50°.

8 . The valve according to claim 1 , wherein the at least one slot comprises two slots, each slot being substantially parallel to the pivot axis.

9 . The valve according to claim 1 , wherein the flap has a notch in which the pin is partially housed.

10 . The valve according to claim 9 , wherein the stabilizing member is engaged in the notch , in particular in a wide bottom segment of the notch.

11 . The valve to claim 1 , wherein a width of the or each slot is larger than that of the edge of the flap.

12 . The valve according to claim 1 , wherein the pin has a thermal expansion coefficient lower than that of the flap.

13 . A motor vehicle exhaust line comprising a valve according to claim 1 .

14 . A motor vehicle comprising a motor vehicle exhaust line according to claim 13 .

Assignees

• Faurecia Systemes Dechappement

Inventors

• Delplanque Gilbert
• Botella Ronan
• Bredent Yannick

Classifications

• F16K1/224

  Details of bearings for the axis of rotation · CPC title

• F02M26/70

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

• F02D9/04 Primary

  concerning exhaust conduits (throttle valves, or arrangements thereof in conduits F02D9/08) · CPC title

• F02D9/106

  Sealing of the valve shaft in the housing, e.g. details of the bearings · CPC title

• F16K1/225 Primary

  the axis of rotation having only one bearing · CPC title