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公开(公告)号：US11680503B2
公开(公告)日：2023-06-20
申请号：US17203279
申请日：2021-03-16
发明人： Sumanth Reddy Dadam , Vinod Ravi , Di Zhu , Vivek Kumar
CPC分类号： F01N1/163 , F01N1/165 , F01N1/166 , G10K11/161 , F01N2240/36 , F01N2900/12
摘要： Methods and systems are provided for adjusting a position of an exhaust valve that regulates engine exhaust noise. In one example, the position of the exhaust valve is adjusted according to a distance between a first vehicle and a second vehicle. The exhaust valve may be adjusted to reduce an exhaust noise level when the distance between the first vehicle and the second vehicle is less than a threshold distance.
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公开(公告)号：US11649750B2
公开(公告)日：2023-05-16
申请号：US16655108
申请日：2019-10-16
发明人： Hani Mohammad Ayesh
CPC分类号： F01N1/166 , F01N1/083 , F01N1/163 , F01N2470/16
摘要： Methods and systems are provided for an exhaust muffler system with multiple inlets of different diameters. In one example, the muffler system may include multiple sets of inlet pipes to a muffler with each set of inlet pipes including pipes of different diameters with valves controlling exhaust flow into the inlet pipes. Exhaust from an engine bank may flow to a distinct set of inlet pipes and a distinct outlet pipe of the muffler via a separate exhaust passage.
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公开(公告)号：US20190186329A1
公开(公告)日：2019-06-20
申请号：US15752366
申请日：2016-05-02
申请人： Cobra Aero LLC
发明人： H. Sean Hilbert , Phil McDowell , Scott Castonguay , Wendell Pen rod , Jim Newton , Mark Johnson
CPC分类号： F01N13/087 , F01N1/166 , F01N1/168 , F01N13/002 , F01N13/10 , F01N13/1833 , F01N2410/00 , F02B27/02 , F02B27/06 , F02B61/04 , F02B75/02 , F02B2075/025 , F02D13/0276 , F02D13/0284 , F02D2013/0292 , F02N19/004 , Y02T10/146 , Y02T10/18
摘要： An apparatus for adjusting power and noise characteristics of an internal combustion engine comprises a wall configured to define an engine cylinder that includes a bore and a compression relief passage. A compression relief valve is configured to selectively adjust fluid flow capacity of the compression relief passage. A manifold is configured to be in fluid communication with the exhaust passage and includes an exhaust bypass valve to permit exhaust to at least partially bypass a noise suppressor. Operational characteristics of the engine can be adjusted along a range that extends from a first set of operational characteristics present when both the compression relief valve and the exhaust bypass valve are in a fully open position to a second set of operational characteristics present when both the compression relief valve and the exhaust bypass valve are in a fully closed position.
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公开(公告)号：US20170191390A1
公开(公告)日：2017-07-06
申请号：US15313903
申请日：2015-05-19
CPC分类号： F01N1/163 , F01N1/02 , F01N1/04 , F01N1/08 , F01N1/165 , F01N1/166 , F01N2590/02 , F01N2590/08 , F04B39/0033 , F04B53/002
摘要： A silencer includes: a housing that has a draw-in portion drawing in fluid, and a plurality of sound attenuating portions arranged in a flowing direction of the fluid; a first partition provided with an intermediate communicating portion communicating the most downstream attenuating portion with the adjacent attenuating portion located adjacent to the most downstream attenuating portion; a valve portion disposed in the most downstream attenuating portion, the valve portion being capable of closing the intermediate communicating portion; a valve holding portion holding the valve portion, the valve holding portion being detachably attached to the housing; and a draw-out portion provided in a portion of the most downstream attenuating portion other than the valve holding portion, the draw-out portion drawing out the fluid from the most downstream attenuating portion.
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公开(公告)号：US09638077B2
公开(公告)日：2017-05-02
申请号：US15219635
申请日：2016-07-26
发明人： Micha Hörr
CPC分类号： F01N1/166 , F01N1/023 , F01N1/163 , F01N2240/36 , F01N2470/02 , F01N2470/14 , F01N2470/18 , F01N2470/24 , F01N2490/15
摘要： A muffler (1) for an exhaust system of a vehicle driven by an internal combustion engine, includes a gas-tight housing (2), a partition wall (31) inside the housing, an inlet pipe (51), a first outlet pipe (61), a switchable second outlet pipe (7) and a resonator pipe (8). The a partition wall (31) divides the housing's interior into a first volume (41) and a second separate volume (42). The inlet pipe and the first outlet pipe (61) and the second outlet pipe and the resonator pipe are in fluid communication with the first volume. The resonator pipe provides fluid communication between the first volume and the second volume. The second outlet pipe passes through the second volume. The second outlet pipe is surrounded, in a circumferential direction, by the resonator pipe in a section in which the second outlet pipe penetrates the partition wall.
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公开(公告)号：US09587537B2
公开(公告)日：2017-03-07
申请号：US14957230
申请日：2015-12-02
申请人： Dave Allison
发明人： Dave Allison
摘要： A triple-baffled muffler enables an engine sound that changes from very quiet when idling to louder as the throttle is pressed. The muffler provides three baffles which are hinged over the center of the muffler. The exhaust pressure travels through the muffler and pushes the baffles until they open to release the pressure. The angle of incidence of the baffles on their hinges governs the loudness of the sound.
摘要翻译： 三重挡板式消声器可使发动机声音从空转时变得非常安静，同时按下节气门。 消声器提供三个挡板，铰链在消音器的中心。 排气压力通过消音器并推动挡板，直到它们打开以释放压力。 挡板在铰链上的入射角度控制着声音的响度。
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公开(公告)号：US09540996B2
公开(公告)日：2017-01-10
申请号：US13990943
申请日：2011-12-02
申请人： Pamela Kess , Roland Kess
发明人： Pamela Kess , Roland Kess
摘要： The invention relates to a silencer for exhaust systems of motor vehicles with an internal combustion engine. The silencer includes an exhaust gas flow pipe for guiding exhaust gas with an exhaust gas inlet opening, an exhaust gas outlet opening having a flow connection to the exhaust gas inlet opening, and a longitudinal center axis. It furthermore has at least one actuable adjustment body for influencing the flow of the exhaust gas in the exhaust gas flow gas pipe, the at least one adjustment body being arranged downstream of the exhaust gas inlet opening. Moreover, the silencer includes at least one bypass channel, which has a flow connection to the exhaust gas flow pipe, runs past the at least one adjustment body and has an exhaust gas outlet opening.
摘要翻译： 本发明涉及一种具有内燃机的机动车排气系统消音器。 消声器包括用于引导废气的废气流管，其具有排气入口，排气出口与废气入口的流动连接，以及纵向中心轴。 此外，还具有至少一个用于影响废气流动气体管道中的废气流动的致动调节体，所述至少一个调节体设置在排气入口的下游。 此外，消声器包括至少一个旁通通道，其具有与排气流管的流动连接，该旁通通道经过所述至少一个调节体并具有废气出口。
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公开(公告)号：US20160326924A1
公开(公告)日：2016-11-10
申请号：US14863272
申请日：2015-09-23
发明人： Young-Dug Yang
CPC分类号： F01N1/163 , F01N1/165 , F01N1/166 , F01N1/168 , F01N2260/14 , F01N2390/08 , F16K15/033 , F16K15/035
摘要： A variable valve may include a housing having hinge support portions protruding from a first side thereof, and an opening at a second side thereof, a first gate rotatably coupled to the hinge support portions so as to open and close a part of the opening, a first spring mounted on the housing to apply elastic force in a direction in which the first gate is closed, a second gate rotatably coupled to the hinge support portions so as to open and close a remaining part of the opening, and a second spring mounted on the housing to apply elastic force in a direction in which the second gate is closed, in which the first spring and the second spring may have different spring constants.
摘要翻译： 可变阀可以包括具有从其第一侧突出的铰链支撑部分和在其第二侧处的开口的壳体，可旋转地联接到铰链支撑部分以便打开和关闭开口的一部分的第一门， 第一弹簧，其安装在壳体上以沿着第一门关闭的方向施加弹力;第二门，可旋转地联接到铰链支撑部分，以打开和关闭开口的剩余部分，第二弹簧安装在 所述壳体在所述第二门关闭的方向上施加弹性力，其中所述第一弹簧和所述第二弹簧可具有不同的弹簧常数。
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公开(公告)号：US09464559B2
公开(公告)日：2016-10-11
申请号：US15015299
申请日：2016-02-04
CPC分类号： F01N13/08 , F01N1/165 , F01N1/166 , F02D9/06 , F16K1/22 , F16K15/033 , Y10T137/7876 , Y10T137/7898
摘要： A passive valve assembly for an engine exhaust system includes an exhaust conduit for transferring exhaust gases from the engine and a valve plate that is operably disposed within the exhaust conduit. A pivot rod has an internal section that is coupled with the valve plate, such that the valve plate may pivot between an open position and a closed position. The pivot rod also has an external section that protrudes from the exhaust conduit. A stop feature is disposed at or near an exterior surface of the exhaust conduit in a location arranged to contact the external section of the pivot rod and prevent the valve plate from pivoting beyond one of the open position and the closed position.
摘要翻译： 用于发动机排气系统的被动阀组件包括用于传递来自发动机的废气的排气管道和可操作地设置在排气管道内的阀板。 枢轴杆具有与阀板联接的内部部分，使得阀板可在打开位置和关闭位置之间枢转。 枢轴杆还具有从排气管突出的外部部分。 停止特征设置在排气导管的外表面处或附近，其布置成接触枢转杆的外部部分并防止阀板枢转超过其中一个打开位置和关闭位置。
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公开(公告)号：US20160222848A1
公开(公告)日：2016-08-04
申请号：US15007511
申请日：2016-01-27
发明人： Yoshitaka Hayama
CPC分类号： F01N1/166 , F01N1/02 , F01N1/08 , F01N1/089 , F01N1/163 , F01N2470/02 , F01N2590/04
摘要： An exhaust muffler has downstream and upstream chambers which are defined in a casing. Exhaust gas from an internal combustion engine is introduced into an end of a first conduit having a pierced region which is held in fluid communication with the downstream chamber and an end of a second conduit. The other ends of the first and second conduits are open into the upstream chamber. A valve means configured to open/close the first and second conduits is actuated by valve actuating means to switch between a short channel mode discharging the exhaust gas from at least the first conduit through the pierced region, the downstream chamber, and a discharge pipe out of the casing and a long channel mode discharging the exhaust gas from at least the second conduit through the upstream chamber, the pierced region, the downstream chamber, and the discharge pipe out of the casing.
摘要翻译： 排气消声器具有限定在壳体中的下游和上游室。 来自内燃机的废气被引入具有被保持与下游室和第二导管的端部流体连通的刺穿区域的第一管道的端部。 第一和第二导管的另一端开放进入上游室。 构造成打开/关闭第一和第二管道的阀装置由阀致动装置致动，以在从至少第一管道穿过穿孔区域排出废气的短通道模式，下游室和排出管出口之间切换 并且将从至少第二导管排出的废气通过上游室，穿孔区域，下游室和排出管排出壳体的长通道模式。
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