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公开(公告)号：US12116913B2
公开(公告)日：2024-10-15
申请号：US17276047
申请日：2019-09-13
CPC分类号： F01N1/08 , G10K11/162
摘要： An exhaust duct assembly for conveying exhaust gases emanating from a combustion zone to atmosphere is disclosed. The assembly includes: an exhaust gas outlet for exhausting exhaust gas into the atmosphere; and an acoustic duct portion located upstream of the exhaust gas outlet, the acoustic duct portion having a peripheral wall defining a through-passage arranged and constructed to promote propagation of sound there-through. The acoustic duct portion has a length in a flow direction that is at least 50% of an average hydraulic diameter of the through-passage.
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公开(公告)号：US12084955B2
公开(公告)日：2024-09-10
申请号：US17965415
申请日：2022-10-13
发明人： Peng Zhang , Rikui Zhang , Liang Lv , Xiaolei Ji , Chunqiang Lan , Yipeng Wu , Xincheng Li , Yuxuan Sun
IPC分类号： E21B43/26 , E21B35/00 , F01N1/24 , F02C7/06 , F02C7/24 , F02C7/32 , A62C35/00 , F01M1/00 , F01M5/00 , F16N7/00
CPC分类号： E21B43/2607 , E21B35/00 , E21B43/26 , F01N1/24 , F02C7/06 , F02C7/24 , F02C7/32 , A62C35/00 , F01M1/00 , F01M5/002 , F05D2260/98 , F16N7/00
摘要： A fracturing device, including a power unit, wherein the power unit comprises a muffling compartment, a turbine engine, an air intake unit, and a starter; the air intake unit is communicated with the turbine engine through an intake pipe, and configured to provide a combustion-supporting gas to the turbine engine; the air intake unit is located at the top of the muffling compartment, the muffling compartment comprises an accommodation space, the turbine engine and the starter are located in the accommodation space, and the starter is configured to start the turbine engine, the starter comprises a first electric motor.
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公开(公告)号：US20240175381A1
公开(公告)日：2024-05-30
申请号：US18522358
申请日：2023-11-29
申请人： HUG Engineering AG
发明人： Tobias Schindele , Wolfgang Ruth , Pauline Rivière
摘要： A muffler for an exhaust system has a muffler housing with an inlet chamber fluidically connected an outlet chamber. The inlet chamber has an inlet pipe for supplying an exhaust gas stream into the inlet chamber, and the outlet chamber has an outlet pipe for discharging the exhaust gas stream from the outlet chamber, wherein the inlet pipe and the outlet pipe each have a first pipe portion and a second pipe portion. The inlet pipe and the outlet pipe in the respective first pipe portions are circumferentially impermeable to the exhaust gas stream and are circumferentially porous in the respective second pipe portions. The first pipe portions each have a predetermined length, such that a λ/4 resonator is formed between the respective first pipe portions and walls of the muffler housing associated with the respective first pipe portions.
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公开(公告)号：US11970928B1
公开(公告)日：2024-04-30
申请号：US17965133
申请日：2022-10-13
发明人： Peng Zhang , Rikui Zhang , Liang Lv , Xiaolei Ji , Chunqiang Lan , Yipeng Wu , Xincheng Li , Yuxuan Sun
CPC分类号： E21B43/2607 , E21B35/00 , E21B43/26 , F01N1/24 , F02C7/06 , F02C7/24 , F02C7/32 , F01M1/00 , F01M5/002
摘要： A fracturing device, including a power unit, wherein the power unit comprises a muffling compartment, a turbine engine, an air intake unit, and a starter; the air intake unit is communicated with the turbine engine through an intake pipe, and configured to provide a combustion-supporting gas to the turbine engine; the air intake unit is located at the top of the muffling compartment, the muffling compartment comprises an accommodation space, the turbine engine and the starter are located in the accommodation space, and the starter is configured to start the turbine engine, the starter comprises a first electric motor.
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公开(公告)号：US11852059B2
公开(公告)日：2023-12-26
申请号：US17871719
申请日：2022-07-22
发明人： Sina Jasteh , William Simard
CPC分类号： F01N1/24 , F24F13/24 , F24F2013/242
摘要： A noise muffler for an air moving device can include a housing with a housing inlet, a housing outlet, and at least a first foam component and a second foam component. The first foam component and the second foam component are placed within a cavity of the housing and define an air passageway. The first foam component and the second foam component redirect air flow through the cavity in three dimensions in order to muffle noise generated by the air moving device.
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公开(公告)号：US11808490B2
公开(公告)日：2023-11-07
申请号：US16838776
申请日：2018-10-09
申请人： Carrier Corporation
发明人： Anthony S. Molavi
IPC分类号： F25B1/047 , F04C29/06 , F24F13/24 , F04B53/00 , F04B39/00 , F25B1/04 , F16L55/033 , F16L9/21 , F01N1/24 , F01N1/08
CPC分类号： F25B1/04 , F16L9/21 , F16L55/0335 , F01N1/08 , F01N1/24 , F01N2470/24 , F01N2490/15 , F04C29/063 , F24F2013/242 , F25B2339/047 , F25B2500/12
摘要： Disclosed is a muffler for a water-cooled chiller or air-cooled of a vapor-compression or absorption refrigeration system, the muffler having: an upstream case (110) having a fluid inlet (120); a downstream case (115) connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet (125); the upstream case having a plurality of axially adjacent outer muffler rings (145) and a plurality of axially adjacent inner muffler rings (155), the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage (140) therebetween, wherein the outer muffler rings and inner muffler rings are a metal mesh material.
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公开(公告)号：US11746682B2
公开(公告)日：2023-09-05
申请号：US17653503
申请日：2022-03-04
CPC分类号： F01N1/24 , B29D23/00 , D04H1/74 , D04H13/00 , B29K2995/0002 , D10B2101/06 , D10B2505/12 , F01N2450/02 , F01N2450/06
摘要： A method for manufacturing a vehicle muffler includes: forming a tubular body (6; 91, 92) from a nonwoven fabric (2; 2A, 2B) composed of inorganic fibers (11) each being in a filament form; inserting and installing the tubular body (6) as a sound-absorbing material into a space (S) between an inner pipe (72; 81) and an outer pipe (71; 821, 822) of an inner-outer double pipe constituting a vehicle muffler. The tubular body (6) may be obtained by applying a binder (3) to one surface (2a) of the nonwoven fabric (2), then rolling the nonwoven fabric (2) into a tubular shape with the surface (2a) having the binder (3) applied thereto facing inward, infiltrating additional binder (3) into an outer peripheral surface of the tubular-shaped nonwoven fabric (2), and then heating the tubular-shaped nonwoven fabric (2) to a predetermined temperature to harden the binder (3).
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公开(公告)号：US20210404359A1
公开(公告)日：2021-12-30
申请号：US17360932
申请日：2021-06-28
摘要： Systems and methods are provided for a combined spark arrestor and muffler assembly. In one example, a system may include a combined housing, the combined housing including a spark arrestor portion including a plurality of stator fins, and a muffler portion including acoustic packing, the muffler portion fluidically coupled to the spark arrestor portion via a first sliding joint and a second sliding joint. In this way, a single component of a vehicle exhaust system may reduce sparks and/or carbon deposits in exhaust gas, while also reducing exhaust noise.
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公开(公告)号：US20210363903A1
公开(公告)日：2021-11-25
申请号：US16616022
申请日：2018-10-12
申请人： CREFACT CO., LTD.
发明人： Yasuo OMORI
摘要： There is provided a method for filling a silencer with glass fiber, for filling an internal space between a case and an inner pipe with glass fiber in a silencer in which a porous inner pipe penetrates through a pair of through holes in the case, the method including shifting the inner pipe in a penetrating direction from a normal position where the inner pipe is secured to the case, inserting a nozzle auxiliary portion into an interior of the case from a through hole opened by the inner pipe being shifted, supplying glass fiber into the interior of the case from a nozzle of a glass fiber supply machine connected to the nozzle auxiliary portion, and filling the internal space between the case and the inner pipe with glass fiber.
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公开(公告)号：US10543449B2
公开(公告)日：2020-01-28
申请号：US15878246
申请日：2018-01-23
发明人： Ichiro Minato , Takuya Sugio , Hiroyuki Murakami , Hiroki Hasebe
摘要： An air dryer includes a supporting base, a drying agent container, and an outer cover. The supporting base includes an inlet for receiving compressed air to be subject to a drying process and an outlet for delivering the processed compressed air that has undergone the drying process. The drying agent container is a container supported on the supporting base, contains a drying agent in the interior, and enables the drying process to be performed by passing the compressed air from the inlet through the drying agent. The outer cover surrounds the outer side of the drying agent container on the supporting base and defines a chamber for storing the compressed air between itself and the drying agent container. The supporting base includes first and second mounting surfaces, which are oriented in different directions, and a plurality of inlets, which are oriented in different directions and receive the compressed air.
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