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1.发明授权公开(公告)号：US12185511B2
公开(公告)日：2024-12-31
申请号：US17166652
申请日：2021-02-03
Inventor： Shailesh N. Joshi , Danny J. Lohan
Abstract: A two-phase cold plate that includes a manifold body having a fluid inlet and a fluid outlet each fluidly coupled to a fluid pathway housed within the manifold body and a vaporization structure housed within the manifold body such that the fluid pathway is disposed over the vaporization structure. The vaporization structure includes a cavity cover, a porous surface, a vapor cavity disposed between the cavity cover and the porous surface, and one or more porous feeding posts extending between the cavity cover and the porous surface. The one or more porous feeding posts fluidly coupled the fluid pathway with the porous surface of the vaporization structure and the porous surface includes a plurality of nucleation sites configured to induce vaporization of a cooling fluid and facilitate vapor flow into the vapor cavity of the vaporization structure.
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公开(公告)号：US20240389277A1
公开(公告)日：2024-11-21
申请号：US18197194
申请日：2023-05-15
Inventor： Danny J. Lohan , Shailesh N. Joshi , Ercan M. Dede
IPC: H05K7/20
Abstract: The present disclosure is directed to systems and methods for cooling electronic devices. The system includes a capillary cooler assembly comprising a housing, a plurality of feeding tubes within the housing, a wick within the housing, and one or more vapor outlets, a fluid feed line fluidly coupled to the plurality of feeding tubes, a fluid bypass line fluidly coupled to the fluid feed line, a fluid bypass valve fluidly coupled to the fluid feed line and the fluid bypass line, wherein the fluid bypass valve is selectively operable between at least two positions that control a flow of cooling fluid through the fluid bypass line, a vapor line fluidly coupled to the one or more vapor outlets, a condenser fluidly coupled to the fluid bypass line, the vapor line, and the fluid feed line, and a pump fluidly coupled to the condenser and the fluid feed line.
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3.发明授权公开(公告)号：US12043400B2
公开(公告)日：2024-07-23
申请号：US17707237
申请日：2022-03-29
Inventor： Shailesh N. Joshi , Danny J. Lohan , Hiroshi Ukegawa
CPC classification number: B64D33/08 , B64D29/02 , B64C29/0008
Abstract: A ram chute assembly is provided for directing a flow of cooling air into a hollow wing structure of an aircraft. The ram chute assembly includes a ram chute body defining an interior passage, and an air inlet enabling an airflow from an exterior of the ram chute body into the interior passage. The assembly is structured to be attachable to an exterior of an engine nacelle so as to receive propeller wash air through the air inlet into the interior passage when a propeller of the engine nacelle is rotating. The ram chute assembly is also structured to discharge the propeller wash air in a direction toward an air intake opening formed in an upper surface of a hollow wing structure on which the engine nacelle is mounted.
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公开(公告)号：US20240193025A1
公开(公告)日：2024-06-13
申请号：US18129594
申请日：2023-03-31
Inventor： Hiroshi Ukegawa , Raymond P. Viviano , Shailesh N. Joshi , Qian Yang , Krishna Pattipati
CPC classification number: G06F11/0751 , G06F11/0721 , G06N20/00
Abstract: Systems, methods, and other embodiments described herein relate to predicting anomalous operation of a device and an associated remaining useful life (RUL) estimation. In one embodiment, a method includes acquiring usage information about the operation of an electronic device. The method includes determining whether the usage information indicates the presence of an anomaly in the operation of the electronic device according to an anomaly model. The method includes, responsive to detecting the anomaly, determining a remaining useful life (RUL) for the electronic device according to a RUL model. The method includes providing the RUL estimate.
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公开(公告)号：US11986759B2
公开(公告)日：2024-05-21
申请号：US17107504
申请日：2020-11-30
Inventor： Shailesh N. Joshi , Ryohei Tsuruta , Umesh Gandhi
CPC classification number: B01D46/0032 , B01D46/4245 , B60K7/0007 , B60K13/02 , B60K13/04 , B01D2279/40
Abstract: Disclosed is a vehicle comprising a wheel with an associated air-cooled motor, and a ventilation path for passing outside air from outside the vehicle into the motor. An electrostatic device is disposed proximate to the ventilation path. When the electrostatic device is energized, particles or debris in the outside air are attracted toward or repelled from the electrostatic device, such that the particles or debris are removed from the outside air before the outside air enters the motor.
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Patent Agency Ranking
公开(公告)号：US11920252B2
公开(公告)日：2024-03-05
申请号：US17394906
申请日：2021-08-05
Inventor： Shailesh N. Joshi , Gaurav Singhal , Paul Vannest Braun , Danny J. Lohan , Kai-Wei Lan
IPC: C25D1/20
CPC classification number: C25D1/20
Abstract: A method of decomposing a cured aromatic epoxy resin uses a molten salt bath at less than about 350° C. The molten salt bath includes a plurality of alkali metal hydroxides. The cured aromatic epoxy resin can be in intimate physical contact with a metal or alloy. The cured aromatic epoxy resin can be patterned by a lithographic method. The lithographic method can be multibeam interference lithography to form a three-dimensional photonic crystal template on a conductive substrate for electrodeposition of metal. Contacting the three-dimensional photonic crystal template with the electrodeposited metal with the molten salt bath can form a metal matrix device displaying a periodic pattern that is the inverse of the periodic pattern of the decomposed three-dimensional photonic crystal template.
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公开(公告)号：US11828498B2
公开(公告)日：2023-11-28
申请号：US17378125
申请日：2021-07-16
Inventor： Shailesh N. Joshi , Ercan M. Dede
CPC classification number: F25B23/003 , F28F13/18 , F28F2245/06
Abstract: Embodiments described herein generally relate a multi-mode heat transfer system. The heat transfer system includes an emitter device. The emitter device includes an inner core, a composite material pattern, and a surface coating pattern. The inner core is surrounded by an outer core having a thickness and an outer surface. The composite material pattern extends through at least a portion of the outer surface and at least a portion of the thickness of the outer core and is thermally coupled to the inner core. The surface coating pattern is on the outer surface and is changeable between a low emissivity state and a high emissivity state based on a surface temperature of the emitter device. In the low emissivity state, the emitter device transmits an omni-directional radiation and, in the high emissivity state, the emitter device transmits a focused radiation via the composite material pattern.
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公开(公告)号：US20230312122A1
公开(公告)日：2023-10-05
申请号：US17707237
申请日：2022-03-29
Inventor： Shailesh N. Joshi , Danny J. Lohan , Hiroshi Ukegawa
CPC classification number: B64D33/08 , B64D29/02 , F02K7/10 , B64C29/0008
Abstract: A ram chute assembly is provided for directing a flow of cooling air into a hollow wing structure of an aircraft. The ram chute assembly includes a ram chute body defining an interior passage, and an air inlet enabling an airflow from an exterior of the ram chute body into the interior passage. The assembly is structured to be attachable to an exterior of an engine nacelle so as to receive propeller wash air through the air inlet into the interior passage when a propeller of the engine nacelle is rotating. The ram chute assembly is also structured to discharge the propeller wash air in a direction toward an air intake opening formed in an upper surface of a hollow wing structure on which the engine nacelle is mounted.
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公开(公告)号：US20230138653A1
公开(公告)日：2023-05-04
申请号：US17518321
申请日：2021-11-03
Inventor： Shailesh N. Joshi , Danny Lohan
Abstract: Evaporator assemblies, vapor chamber assemblies, and methods for fabricating a vapor chamber are disclosed. In one embodiment, an evaporator assembly for a vapor chamber includes an evaporator surface, an array of posts extending from the evaporator surface, and an array of vapor vents within the evaporator surface. Each vapor vent of the array of vapor vents is configured as a depression within the evaporator surface. The evaporator assembly further includes a porous layer disposed on the evaporator surface, the array of posts, and the array of vapor vents.
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公开(公告)号：US20230044343A1
公开(公告)日：2023-02-09
申请号：US17395029
申请日：2021-08-05
Inventor： Shailesh N. Joshi , Gaurav Singhal , Paul Vannest Braun , Danny J. Lohan , Kai-Wei Lan
Abstract: A method to form a three-dimensional photonic crystal template with a gradient structure involves irradiating a photoresist composition of a thickness of at least 15 μm from at least four laser beams to yield a periodic patterned with a percolating matrix of mass in constructive volumes of a cured photoresist composition and destructive volumes of voids free of condensed matter where the proportion of constructive volume displays a gradient from the irradiated surface to the substrate after development. For a given light intensity, photoinitiator concentration in the photoresist composition, and a given thickness, by irradiating for a relatively short period, a three-dimensional photonic crystal template displaying a gradient having greater constructive volume proximal the air interface forms and a relatively long irradiation period results in a gradient having greater constructive volume proximal the substrate.
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