公开(公告)号：US20180051609A1

公开(公告)日：2018-02-22

申请号：US15238838

申请日：2016-08-17

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Larry J. GEER ,  Erwin PETERS ,  Stephen M. THOMAS ,  William E. HILL

IPC: F01N1/16 ,  F16K1/20 ,  F16K31/00 ,  F16K47/04 ,  F01N13/08

Abstract: A snap-action valve assembly for an exhaust system and a method for manufacturing the same is provided. The valve assembly includes a first conduit and a second conduit that is partially received in the first conduit. A valve flap is disposed within the first conduit for controlling exhaust flow. A shaft supports the valve flap in the first conduit for rotation between open and closed positions. The first conduit has first and second slots, each extending from an open slot end to a closed slot end. First and second bushings supporting the shaft are disposed within the slots between the second conduit and the closed slot ends. A pad made of wire mesh is attached to the valve flap. The pad includes an end portion that contacts the first conduit in the closed position to dampen vibration and reduce valve flap flutter.

公开(公告)号：US20180051607A1

公开(公告)日：2018-02-22

申请号：US15238872

申请日：2016-08-17

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Larry J. GEER ,  Erwin PETERS ,  Stephen M. THOMAS ,  William E. HILL

IPC: F01N1/08 ,  F01N1/16

CPC classification number: F01N1/08 ,  F01N1/165 ,  F01N2240/36 ,  F01N2260/16

Abstract: A snap-action valve assembly for an exhaust system is provided that includes a first conduit and a second conduit that are joined to together to define an exhaust passageway. A valve flap is disposed within the exhaust passageway for controlling exhaust flow. A shaft supports the valve flap in the exhaust passageway for rotation between open and closed positions. First and second bushings support the shaft. A pad made of wire mesh is attached to the valve flap. The pad includes an end portion that contacts the first or second conduit in the closed position and side wings that contact the first or second conduit in the open position. A resilient tongue may support the pad on an angle relative to the valve flap and a mass damper may be attached to one end of the shaft. These features dampen vibration and reduce valve flap flutter.