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公开(公告)号：US09518789B2
公开(公告)日：2016-12-13
申请号：US14477733
申请日：2014-09-04
申请人： Caterpillar Inc.
CPC分类号： F28F9/04 , F16J15/022 , F16J15/0887 , F16J15/3204 , F28D7/163 , F28F9/0248 , F28F2230/00
摘要： A seal for a heat exchanger of a machine includes a pad and a sealing lip. The pad includes a perimeter, a core face, and a tank face. The core face is in opposing relationship to the tank face. The pad defines a pad plane and an opening which extends between the core face and the tank face. The scaling lip circumscribes the perimeter of the pad and includes a base end, which is connected to the perimeter of the pad, and a terminal end. The sealing lip extends outwardly along the pad plane from the pad perimeter and projects from the core face. The sealing lip including an outer lip wall which extends from the base end to the terminal end along a tip axis disposed at an oblique lip pitch angle relative to the pad plane.
摘要翻译： 用于机器的热交换器的密封件包括垫和密封唇。 该垫包括一个周边，一个核心面和一个罐面。 核心面对与坦克面相反的关系。 衬垫限定了衬垫平面和在芯面和容器面之间延伸的开口。 缩放唇缘限定垫的周边，并且包括连接到垫的周边的基端和终端。 密封唇从衬垫周边沿衬垫平面向外延伸，并从芯面突出。 所述密封唇缘包括从所述基端延伸到所述终端的外唇壁，所述外唇缘沿着相对于所述垫平面以倾斜唇倾角设置的尖端轴线延伸。
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公开(公告)号：US11649758B1
公开(公告)日：2023-05-16
申请号：US17664384
申请日：2022-05-20
申请人： Caterpillar Inc.
发明人： Shah S. Kareemullah , Anthony L. De Luca , Christiana G. Aguirre , Scott R. Schuricht , Joseph L. Kennedy
CPC分类号： F01P7/14 , F01P3/207 , F01P5/10 , F01P7/165 , F02M31/20 , F01P2007/146 , F01P2025/13 , F01P2025/60
摘要： A method for controlling an internal combustion engine cooling system includes pumping coolant in an engine cooling loop with a coolant pump, pumping the coolant in an air cooler loop that includes a liquid-to-liquid heat exchanger with the coolant pump, and receiving a condition signal indicative of at least one condition associated with the internal combustion engine. The method also includes, based on the condition signal, adjusting a position of a flow control valve to modify a flow of coolant to the liquid-to-liquid heat exchanger.
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公开(公告)号：US10823515B2
公开(公告)日：2020-11-03
申请号：US15426554
申请日：2017-02-07
申请人： Caterpillar Inc.
摘要： An air-to-air aftercooler (ATAAC) configured to cool compressed air from an air compressor is disclosed. The ATAAC may comprise a header at a cold end, and a plurality of core tubes. Each of the core tubes may have a first end and a second end. The ATAAC may further comprise a plurality of grommets each connecting the second end of one of the core tubes to a slot of the header. Each of the grommets may include an inner surface contacting the core tube and an outer surface contacting the slot of the header. The inner surface of the grommet may include radially-inwardly projecting regions contacting the core tube, and depressed regions providing clearance between the grommet and the core tube.
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公开(公告)号：US20180224216A1
公开(公告)日：2018-08-09
申请号：US15426595
申请日：2017-02-07
申请人： Caterpillar Inc.
发明人： Joseph L. Kennedy , Nirag Sheth , James McCoy Voelker , Elmer S. Zanoria , Christian Earl Sabotta , Neil Terry
摘要： An air-to-air aftercooler (ATAAC) configured to cool compressed air from an air compressor is disclosed. The ATAAC may comprise a first header. The first header may include a plurality of slots each having a recessed groove. The ATAAC may further comprise a plurality of core tubes each including a first end inserted in a respective one of the slots of the first header. The ATAAC may further comprise a plurality of mechanical joints each connecting the first end of one of the core tubes to the first header. Each of the mechanical joints may include a C-ring inserted in the recessed groove of one of the slots, and a clamp clamping the core tube to the first header. The C-ring and the clamp may both be formed from a metallic material.
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公开(公告)号：US20180038656A1
公开(公告)日：2018-02-08
申请号：US15230545
申请日：2016-08-08
申请人： Caterpillar Inc.
发明人： Joseph L. Kennedy , Dongming Tan
CPC分类号： F28D9/0093 , F28D1/0443 , F28D1/05366 , F28D9/0037 , F28D2021/0094 , F28F3/025 , F28F9/0075 , F28F9/0214 , F28F2265/26 , F28F2270/00 , F28F2270/02
摘要： A work machine heat exchanger is provided. The work machine heat exchanger includes an upstream tank having an inlet and a downstream tank having an outlet. The work machine heat exchanger also includes a first core and a second core, both coupled between the upstream and the downstream tank, and including a first inner side sheet and a second inner side sheet, respectively. The first and the second inner side sheet define an air gap between the first and the second core. A pair of supporting bars are stacked between the first and the second inner side sheet, and configured to retain the first and the second inner side sheet parallel to each other. A first supporting bar of the pair of supporting bars is attached to the upstream tank and a second supporting bar of the pair of supporting bars is attached to the downstream tank.
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公开(公告)号：US11459970B2
公开(公告)日：2022-10-04
申请号：US17184095
申请日：2021-02-24
申请人： Caterpillar Inc.
摘要： Fuel leak detection systems and methods are disclosed. A method for detecting a fuel leak for a fuel system of an engine includes detecting a ramp up of the engine. The method includes measuring rail pressure of a fuel rail during the ramp up. The method also includes determining a fuel leak exists in the fuel system based on the measured rail pressure during the ramp up. In accordance with a determination that a fuel leak exists, the method includes outputting an indication of the fuel leak in the fuel system.
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公开(公告)号：US11454144B1
公开(公告)日：2022-09-27
申请号：US17211388
申请日：2021-03-24
申请人： Caterpillar Inc.
摘要： Lubricant dilution detection systems and methods are disclosed. A method for detecting lubricant dilution for a lubrication system includes detecting a shutdown event of the lubrication system. The method includes measuring lubricant pressure during the shutdown event. The method further includes determining lubricant dilution based on the measured lubricant pressure during the shutdown event. In accordance with a determination that there is lubricant dilution, the method includes outputting an indication of the lubricant dilution.
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公开(公告)号：US10113475B2
公开(公告)日：2018-10-30
申请号：US14938158
申请日：2015-11-11
申请人： Caterpillar Inc.
发明人： Joseph L. Kennedy , Neil Terry
摘要： A shunt tank assembly for a cooling system is provided. The shunt tank assembly includes a vent tube, a shunt tank, and an inlet port provided on the shunt tank. The inlet port is in fluid communication with the vent tube. The shunt tank assembly also includes an insert disposed in the inlet port. The shunt tank assembly further includes a drop tube. The drop tube includes a plug portion having a first length and received within the insert. The drop tube includes a transition portion tapered with respect to the plug portion. The drop tube includes a tube portion extending from the transition portion and terminating with a chamfered end. The tube portion has a second length greater than the first length of the plug portion. The tube portion is bent such that the chamfered end is disposed below an average coolant level of the shunt tank.
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公开(公告)号：US20180171861A1
公开(公告)日：2018-06-21
申请号：US15381904
申请日：2016-12-16
申请人： Caterpillar Inc.
发明人： Dongming Tan , Doug A. Long , Neil Terry , Anthony L. Deluca , Jianlong Xu , Rohit K. Paramatmuni , Joseph L. Kennedy , Michael J. Campagna
CPC分类号： 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
摘要： 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：US20160201998A1
公开(公告)日：2016-07-14
申请号：US15075362
申请日：2016-03-21
申请人： CATERPILLAR INC.
CPC分类号： F28F9/001 , F28D1/0443 , F28D2021/008 , F28F2009/004 , F28F2240/00 , F28F2265/26 , F28F2280/06
摘要： A heat exchanger adapted to be coupled with a platform is disclosed. The heat exchanger comprises two or more core units having an upper surface and a lower surface, the lower surface of each core unit being fixed to the platform. The heat exchanger further includes a plate disposed along the upper surface of the core units, the plate having a plurality of bend enhancement regions and a plurality of holes, each bend enhancement region being placed at a predetermined distance from the nearest adjacent holes, and a plurality of spacers interposed between the plate and the upper surface to couple the plate to the upper surface, the plurality of spacers adapted to provide offset between the plate from the core units. During operation of the heat exchanger, each bend enhancement region is configured to facilitate flexibility of the plate to accommodate any uneven expansion of the core units.
摘要翻译： 公开了一种适于与平台联接的热交换器。 热交换器包括具有上表面和下表面的两个或多个芯单元，每个芯单元的下表面固定到平台。 热交换器还包括沿着芯单元的上表面设置的板，该板具有多个弯曲增强区域和多个孔，每个弯曲增强区域被放置在距离最近的相邻孔的预定距离处，并且 多个间隔物插入在板和上表面之间以将板耦合到上表面，多个间隔件适于在板与芯单元之间提供偏移。 在热交换器的操作期间，每个弯曲增强区域构造成促进板的柔性以适应核心单元的任何不均匀的膨胀。
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