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公开(公告)号：US20180038495A1
公开(公告)日：2018-02-08
申请号：US15229189
申请日：2016-08-05
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stephen M. THOMAS
CPC classification number: F16K15/033 , B23P15/002 , F01N13/08 , F01N2390/08 , Y10T137/7898 , Y10T137/7901
Abstract: A snap-action valve assembly for an exhaust system includes a valve flap positioned within a conduit. A shaft supports the valve flap in the conduit for rotation about a pivot axis between a closed position and an open position. A roller is supported for rotation on a post. The post is fixed to the shaft by a lever arm. A torsion spring includes a first end coupled to the conduit and a second end coupled to the roller. The torsion spring is preloaded to urge the valve flap into contact with an inner surface of the conduit when the valve flap is in the closed position. A method of assembling the snap-action valve assembly with a predetermined spring preload torque is also discussed.
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公开(公告)号：US20200309277A1
公开(公告)日：2020-10-01
申请号：US16370179
申请日：2019-03-29
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stephen M. THOMAS , Danny D. ALEXANDER
Abstract: A damper valve assembly for an exhaust system of a vehicle includes a valve housing and a valve flap. The valve housing is adapted to be attached to a pipe of the exhaust system and defines an opening. The valve flap is rotatable relative to the valve housing and about a pivot axis between a first position whereat fluid flow through the opening of the valve housing is restricted and a second position whereat fluid flow through the opening of the valve housing is allowed. The valve flap includes a body and a mass damper. The mass damper is integral with the body and includes a plurality of segments that are folded so that the plurality of segments are in a stacked arrangement.
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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
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.
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公开(公告)号：US20180051610A1
公开(公告)日：2018-02-22
申请号：US15797140
申请日：2017-10-30
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stephen M. THOMAS , Larry J. GEER
IPC: F01N1/16
CPC classification number: F01N1/165 , F01N1/026 , F01N2240/36 , F01N2390/00 , F02D9/1015 , F02D9/106 , F16K1/224 , F16K1/2261
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 subassemblies supporting the shaft are disposed within the slots between the second conduit and the closed slot ends. Each of the first and second bushing subassemblies includes an alignment system in the form of protrusions that limit insertion of the first and second bushing subassemblies into the first and second slot to a single orientation.
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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
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.
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Patent Agency Ranking
公开(公告)号：US20210199057A1
公开(公告)日：2021-07-01
申请号：US17203045
申请日：2021-03-16
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stephen M. THOMAS , Danny D. ALEXANDER
Abstract: A valve assembly for an exhaust system of a vehicle comprises a housing defining an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet. The valve assembly further comprises a valve flap disposed in the housing and rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted. A mass damper is disposed within the exhaust gas passageway and attached to the valve flap. The mass damper includes end portions and an intermediate portion disposed between the end portions with the intermediate portion having a thickness that is greater than a thickness of the end portions. The mass damper is positioned proximate an inner surface of the housing and positioned between the valve flap and the housing when the valve flap is at the second position.
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公开(公告)号：US20180038494A1
公开(公告)日：2018-02-08
申请号：US15229180
申请日：2016-08-05
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stephen M. THOMAS , David L. ANDERSON
CPC classification number: F16K15/033 , B23P15/002 , F01N13/08 , F01N2240/36 , F01N2390/08 , Y10T137/7898
Abstract: A snap-action valve assembly includes a valve flap positioned within a conduit for controlling exhaust flow through the conduit. A shaft supports the valve flap in the conduit for rotation about a pivot axis between a closed position and an open position. A guide is fixed to the valve flap. A torsion spring is positioned at least partially outside the conduit and includes a first end restricted from rotation in at least one direction. The torsion spring includes a second end coupled to the guide. The torsion spring is preloaded to urge the valve flap into contact with an inner surface of the conduit when the valve flap is in the closed position.
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公开(公告)号：US20210025340A1
公开(公告)日：2021-01-28
申请号：US16523360
申请日：2019-07-26
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stephen M. THOMAS , Danny D. ALEXANDER
Abstract: A valve assembly for an exhaust system of a vehicle. The valve assembly includes a housing, a valve flap and a mass damper. The housing defines an inlet, an outlet, and a longitudinally extending exhaust gas passageway in fluid communication with the inlet and the outlet. The valve flap is disposed in the housing and is rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted. The mass damper is disposed within the exhaust gas passageway. The mass damper is attached to the valve flap and comprise of a material having a high density. The mass damper is shielded from the exhaust gas flowing through the exhaust gas passageway when the valve flap is in the second position.
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公开(公告)号：US20210025301A1
公开(公告)日：2021-01-28
申请号：US16523331
申请日：2019-07-26
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stephen M. THOMAS , Danny D. ALEXANDER
IPC: F01N1/16 , F16K31/163 , F01N13/00
Abstract: A valve assembly for an exhaust system of a vehicle. The valve assembly includes a housing, a valve shaft and a valve plate. The housing defines an inlet, an outlet, and a longitudinally exhaust gas passageway in fluid communication with the inlet and the outlet. The valve shaft is rotatable. The valve plate is coupled to the valve shaft and is rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted. The first housing includes spaced apart ears integral with and laterally extending from the first housing. The ears opposing each other. The shaft includes an axis of rotation being positioned at the ears and outside of the exhaust gas passageway.
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公开(公告)号：US20200309278A1
公开(公告)日：2020-10-01
申请号：US16370246
申请日：2019-03-29
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Stephen M. THOMAS , Danny D. ALEXANDER
Abstract: A damper valve assembly includes a valve housing, a valve flap and a torsional spring. The valve housing is adapted to be attached to a pipe of an exhaust system and defines an opening. The valve flap is rotatably coupled to the valve housing about a pivot axis. The valve flap is movable between a first position whereat fluid flow through the opening of the valve housing is restricted and a second position whereat fluid flow through the opening of the valve housing is allowed. The torsional spring engages the valve flap to bias the valve flap toward the first position. A preload of the torsional spring when the valve flap is in the first position is adjustable.
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