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公开(公告)号：US11873832B2
公开(公告)日：2024-01-16
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
CPC classification number: F04D29/329 , F01D5/30 , F05D2230/10 , F05D2230/21
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：US20200240722A1
公开(公告)日：2020-07-30
申请号：US16256119
申请日：2019-01-24
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , Virender Kumar
IPC: F28F9/013
Abstract: A support assembly for attaching a heat exchanger to a frame of a machine. The support assembly including a clip having one or more attachment features for attaching to the frame and a support member disposed between a first fin portion and a second fin portion of the heat exchanger. The support member disposed between the clip and the tube member to at least partially surrounds a perimeter of the tube member and form a seal therewith.
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公开(公告)号：US20200064073A1
公开(公告)日：2020-02-27
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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公开(公告)号：US20210324786A1
公开(公告)日：2021-10-21
申请号：US16852893
申请日：2020-04-20
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , James McCoy Voelker , Sharath Kumar Reddy Challa , Jianlong Xu
Abstract: A machine system includes a compressor, and a cooler having an inlet tank to receive compressed air from the compressor, and a header assembly attached to the inlet tank and including a plurality of cooling tubes supported in the header and each having an external heat exchange surface exposed to a flow of cooling air. The cooler further includes a plurality of graphite pack seals each extending peripherally around one of the cooling tubes, and a clamping assembly clamping the pack seals against the header to squeeze the pack seals into sealing contact with the cooling tubes and the header.
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公开(公告)号：US11022077B2
公开(公告)日：2021-06-01
申请号：US16539560
申请日：2019-08-13
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , Michael Pollard
Abstract: An EGR cooler includes an elongated, stainless steel cooler housing with a first end having a stainless steel end plate and a second end opposite the first end, and an Inconel diffuser having an inlet end defining a gas inlet and an outlet end welded to the stainless steel end plate. The stainless steel end plate having a first thickness and the outlet end of the Inconel diffuser including a sidewall having a second thickness that is 50% or less of the first thickness.
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Patent Agency Ranking
公开(公告)号：US10378426B2
公开(公告)日：2019-08-13
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
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：US10222130B2
公开(公告)日：2019-03-05
申请号：US15230545
申请日：2016-08-08
Applicant: Caterpillar Inc.
Inventor： Joseph L. Kennedy , Dongming Tan
Abstract: 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：US20240352885A1
公开(公告)日：2024-10-24
申请号：US18136640
申请日：2023-04-19
Applicant: Caterpillar Inc.
Inventor： Joseph L. Kennedy , Bradley Paul Wrage , Dongming Tan
CPC classification number: F01P7/165 , F01P7/04 , F01P2007/146 , F01P2025/36
Abstract: A method of controlling cooling fluid flow through a radiator system having multiple radiator cores comprises flowing cooling fluid through the radiator system, the radiator system comprising a first radiator core and a second radiator core, sensing a first temperature of ambient air, comparing the first temperature to a first threshold temperature and reducing flow through the first radiator core if the first temperature is below the first threshold temperature. The first radiator core has a first valve, and the second radiator core can have a second valve. The first valve can be opened to allow for parallel flow of cooling fluid through the first radiator core and the second radiator core between an inlet manifold and an outlet manifold and closed to interrupt flow of cooing fluid through the first radiator core between the inlet manifold and the outlet manifold.
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公开(公告)号：US11098965B2
公开(公告)日：2021-08-24
申请号：US16378645
申请日：2019-04-09
Applicant: Caterpillar Inc.
Inventor： Hussien A Albakhit , Virender Kumar , Jeffrey Joseph Speichinger , James McCoy Voelker , Fei Wang , Sudhakar Lakshminarayanan , Dongming Tan , Neil Alan Terry
Abstract: A radiator includes a radiator frame, an array of tube assemblies each including a coolant tube and a tube clip supported in the radiator frame, and a lateral bump stop fitted between the array of tube assemblies and the radiator frame. The lateral bump stop includes cushions arranged in a staggered cushion pattern complementary to a staggered packing pattern of the tube assemblies with each of the cushions in contact with the tube clip of one of the tube assemblies.
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公开(公告)号：US11047632B2
公开(公告)日：2021-06-29
申请号：US16256119
申请日：2019-01-24
Applicant: Caterpillar Inc.
Inventor： Dongming Tan , Virender Kumar
Abstract: A support assembly for attaching a heat exchanger to a frame of a machine. The support assembly including a clip having one or more attachment features for attaching to the frame and a support member disposed between a first fin portion and a second fin portion of the heat exchanger. The support member disposed between the clip and the tube member to at least partially surrounds a perimeter of the tube member and form a seal therewith.
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