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公开(公告)号：US12234758B1
公开(公告)日：2025-02-25
申请号：US18434599
申请日：2024-02-06
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , Bradley Hodges , Albert Yueh-Chang Lee , Joseph Lee Kennedy , Zheng Zhang , Scott A Snoble
Abstract: This disclosure describes an exhaust assembly that includes an exhaust tube and a coolant passage. The exhaust tube is oriented about an axis and an exhaust gas is configured to flow through the exhaust tube in a direction away from an end of the exhaust tube. The coolant passage is oriented about the axis radially outward of the exhaust tube, the coolant passage having an inner shell and an outer shell. The exhaust assembly further includes an expansion reservoir positioned vertically (relative to a gravitational reference) above the coolant passage. The expansion reservoir and coolant passage are fluidly coupled by a conduit having a first diameter. The expansion reservoir is coupled with a coolant reservoir by a second conduit having a diameter less than the first diameter. Vapor after a hot shutdown travels up the first conduit and is replaced by coolant flowing down the first conduit.
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公开(公告)号：US11656037B2
公开(公告)日：2023-05-23
申请号：US16414815
申请日：2019-05-17
Applicant: Caterpillar Inc.
Inventor： Dongming Tan
CPC classification number: F28F9/0138 , F28F2275/08
Abstract: A support assembly for attaching a heat exchanger to a frame of a machine. The support assembly includes a clip configured to at least partially surround a perimeter of a tube member of the heat exchanger. The clip includes a first end portion and a second end portion configured to engage the first end portion to hold the support assembly around the tube member in a closed position. The first end portion includes a laterally-extending projection and a laterally facing surface spaced apart from the projection by a recessed area. The second end portion defines a recess configured to receive a portion of the projection.
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公开(公告)号：US20220268295A1
公开(公告)日：2022-08-25
申请号：US17663271
申请日：2022-05-13
Applicant: Caterpillar Inc.
Inventor： Bradley P. Wrage , Dongming Tan , Adam C. Grove , Neil A. Terry
Abstract: A hub assembly for construction of a fan includes a hub plate having a front face, a rear face, and an annular surface extending between the front face and the rear face. The hub plate defines a hub assembly axis extending through the front face and the rear face which is configured to coincide with the fan axis. The hub assembly further includes a plurality of elongated root sections that are circumferentially spaced apart and extend radially from the annular surface. The elongated root sections have a substantially circular cross-section. The hub plate and the plurality of elongated spokes are unitarily formed.
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公开(公告)号：US11346361B2
公开(公告)日：2022-05-31
申请号：US16989096
申请日：2020-08-10
Applicant: Caterpillar Inc.
Inventor： Bradley P. Wrage , Dongming Tan , Adam C. Grove , Neil A. Terry
Abstract: A hub assembly for construction of a fan includes a hub plate having a front face, a rear face, and an annular surface extending between the front face and the rear face. The hub plate defines a hub assembly axis extending through the front face and the rear face which is configured to coincide with the fan axis. The hub assembly further includes a plurality of elongated root sections that are circumferentially spaced apart and extend radially from the annular surface. The elongated root sections have a substantially circular cross-section. The hub plate and the plurality of elongated spokes are unitarily formed.
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公开(公告)号：US11035615B2
公开(公告)日：2021-06-15
申请号：US16110042
申请日：2018-08-23
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , Susan Jill Toher
Abstract: A clip includes a body defining an exterior profile, and an adjustably sized aperture. The exterior profile defines at least one attachment feature and the body includes a surface defining the adjustably sized aperture and at least one stop member disposed in the adjustably sized aperture.
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Patent Agency Ranking
公开(公告)号：US20180171861A1
公开(公告)日：2018-06-21
申请号：US15381904
申请日：2016-12-16
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , Doug A. Long , Neil Terry , Anthony L. Deluca , Jianlong Xu , Rohit K. Paramatmuni , Joseph L. Kennedy , Michael J. Campagna
CPC classification number: F01P11/14 , F01P11/16 , F01P2023/08 , F01P2025/13 , F01P2025/46 , F01P2025/50 , F01P2025/62 , F01P2025/64 , F01P2031/20 , F01P2060/02 , F01P2060/04 , F02M26/48 , F02M26/49 , G01N25/72 , G07C5/008
Abstract: A system for determining a remaining useful life of a cooling component operatively connected to a prime mover. A controller performs a thermal strain analysis that includes determining the power output of the prime mover based upon sensor signals, determining a temperature output of the prime mover based upon the power output, determining a temperature at each of the plurality of analysis locations based upon the temperature output, determining a temperature difference based upon the temperature at each respective one of the plurality of analysis locations, and determining a thermal strain based upon the temperature difference. The controller repeats the thermal strain analysis at time intervals over a period of time, determines an accumulated damage for the cooling component based upon the thermal strain from each thermal strain analysis, and determines a remaining useful life of the cooling component based upon the material characteristics and the accumulated damage.
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公开(公告)号：US09856776B1
公开(公告)日：2018-01-02
申请号：US15266807
申请日：2016-09-15
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , Faiz Khan , Sairam Thiagarajan , Zubair Mohammed
CPC classification number: F01N13/141 , F01N1/02 , F01N13/1805 , F01N13/1838 , F01N2260/10 , F01N2450/20 , F01N2470/06 , F01N2470/16 , F01N2470/18 , G10K11/161
Abstract: A muffler is disclosed. The muffler may comprise an expansion chamber and a double shell housing surrounding the expansion chamber and extending from a first end to a second end. The double shell housing may include an annular perforated inner shell, an annular outer shell surrounding the inner shell, and an insulation between the inner shell and the outer shell. The muffler may further comprise at least one C-bracket between the inner shell and the outer shell at each of the first and second ends of the double shell housing. Each of the C-brackets may include a first leg, a second leg, and a linking portion connecting the first leg and the second leg. The second leg may be in abutting engagement with the outer shell.
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公开(公告)号：US20160376968A1
公开(公告)日：2016-12-29
申请号：US14753499
申请日：2015-06-29
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , Brian M. Cole , Shawn R. Herold , Kevin L. Dea , Theron Cassidy , Matthew F. Fahrenkrug , Douglas A. Long , James J. Driscoll
CPC classification number: F01N3/2066 , F01N3/021 , F01N3/0842 , F01N3/103 , F01N3/106 , F01N2530/22 , F01N2560/021 , F01N2570/18 , F01N2610/02 , F01N2610/10 , F01N2610/14 , Y02T10/24
Abstract: A header unit for a reductant tank is provided. The header unit includes a reductant draw conduit extending into an interior space of the reductant tank. The reductant draw conduit is configured to draw a reductant from the reductant tank. The reductant draw conduit includes at least one expansion opening provided along a length thereof. The header unit also includes a valve element coupled to the reductant draw conduit. The valve element includes a main body member defining a channel therethrough. The main body member circumferentially surrounds at least a portion of the reductant draw conduit corresponding to the at least one expansion opening. The main body member is made of an elastomeric material configured to accommodate an expansion thereof.
Abstract translation: 提供了一种用于还原罐的头部单元。 头部单元包括延伸到还原剂罐的内部空间中的还原剂牵引导管。 还原剂牵引导管构造成从还原槽中吸收还原剂。 还原剂牵引导管包括沿其长度设置的至少一个膨胀开口。 集管单元还包括联接到还原剂牵引导管的阀元件。 阀元件包括限定穿过其中的通道的主体构件。 主体构件周向地包围对应于至少一个膨胀开口的还原剂牵引导管的至少一部分。 主体构件由构造成适应其膨胀的弹性体材料制成。
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公开(公告)号：US20150198075A1
公开(公告)日：2015-07-16
申请号：US14154295
申请日：2014-01-14
Applicant: CATERPILLAR INC.
Inventor： Xiaohui Gong , Matthew F. Fahrenkrug , Dongming Tan , Amarnath Nelli , Na Cai , Ivan Palmer
CPC classification number: F01N3/2066 , F01N2610/02 , F01N2610/11 , Y02T10/24
Abstract: A cooling system for an injector tip for a diesel emission fluid (DEF) injection system is disclosed. The system uses a heat sink, such as a head for a regeneration system, to vaporize cooling fluid, in combination with a phase separation tank, to force cooling fluid backward through a cooling loop thereby allowing cooling of an injector tip following engine shutdown in a “hot” shutdown situation.
Abstract translation: 公开了一种用于柴油机排放液（DEF）注射系统的喷射器头部的冷却系统。 该系统使用诸如用于再生系统的头部的散热器与相分离罐组合来蒸发冷却流体，以迫使冷却流体向后流过冷却回路，从而允许在发动机关闭之后冷却喷射器尖端 “热”关机情况。
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30.发明申请公开(公告)号：US20140369899A1
公开(公告)日：2014-12-18
申请号：US14474192
申请日：2014-09-01
Applicant: Caterpillar Inc.
Inventor： MATTHEW FAHRENKRUG , Sumeeth Shantharaju Sivanagere , Thomas George Ausman , William Charles Morris , Neil Alan Terry , David Firel Schaller , Dongming Tan , Kurtis Edward Chenoweth , Timothy Cameron Englert
IPC: F01N3/20
CPC classification number: F01N3/2066 , F01N2610/02 , F01N2610/11 , Y02T10/24
Abstract: A cooling system in an aftertreatment unit for a multi-cylinder internal combustion engine is disclosed. The aftertreatment unit includes a selective catalyst reduction (SCR) module, an exhaust conduit portion, and a number of reductant injectors. Each reductant injector includes an injector coolant outlet. The cooling system supplies coolant to the reductant injectors by a coolant pump. A phase separation tank, positioned at a higher gravitational potential downstream of the reductant injectors, includes a number of compartments. Each compartment includes at least one inlet portion and at least one outlet portion. Each inlet portion is in fluid communication to the injector coolant outlet and each outlet portion is in fluid communication with the coolant reservoir. A coolant anti-siphon line portion facilitates fluid communication between the reductant injectors and the phase separation tank. Additionally, a coolant vent line facilitates fluid communication between the phase separation tank and the coolant reservoir.
Abstract translation: 公开了一种用于多缸内燃机的后处理单元中的冷却系统。 后处理单元包括选择性催化剂还原（SCR）模块，排气导管部分和多个还原剂喷射器。 每个还原剂喷射器包括喷射器冷却剂出口。 冷却系统通过冷却剂泵将冷却剂提供给还原剂喷射器。 位于还原剂喷射器下游的较高重力势的相分离罐包括多个隔室。 每个隔室包括至少一个入口部分和至少一个出口部分。 每个入口部分与喷射器冷却剂出口流体连通，并且每个出口部分与冷却剂储存器流体连通。 冷却剂防虹吸管线部分促进还原剂喷射器和相分离罐之间的流体连通。 此外，冷却剂通气管路有助于相分离罐和冷却剂储存器之间的流体连通。
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