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公开(公告)号：US20190249589A1
公开(公告)日：2019-08-15
申请号：US16342315
申请日：2017-10-19
Applicant: CUMMINS INC.
Inventor： Timothy C. Ernst , Christopher R. Nelson , Jared Carpenter Delahanty
CPC classification number: F01P1/06 , F01K7/18 , F01K7/38 , F01K23/065 , F01P5/02 , F01P7/02 , F02G5/02 , F25B27/02 , Y02A30/274 , Y02T10/166
Abstract: An engine cooling system comprises an engine cooling circuit, comprising a first pump structured to circulate engine coolant fluid therethrough. A remote coolant radiator positioned along the engine cooling circuit downstream of the engine and outside of a vehicle cooling package area is structured to transfer heat from the engine coolant fluid to air. A coolant heat exchanger is positioned along the engine cooling circuit in parallel to the remote coolant radiator. A waste heat recovery system comprises a working fluid circuit comprising a second pump. The coolant heat exchanger is positioned along the working fluid circuit and is structured to transfer heat from the engine coolant fluid to the working fluid. An expander is structured to convert energy from the heat transferred to the working fluid from the engine cooling fluid to mechanical energy. A condenser positioned downstream of the expander is structured cool the working fluid.
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公开(公告)号：US20220228513A1
公开(公告)日：2022-07-21
申请号：US17612646
申请日：2020-05-14
Applicant: CUMMINS INC.
Inventor： Timothy C. Ernst , James A. Zigan , Jared Carpenter Delahanty
Abstract: A waste heat recovery (WHR) system that can be utilized in internal combustion engine systems includes at least two circuits, one having a low pressure working fluid and another having a high pressure working fluid. Each circuit can include heat exchangers to allow the working fluid to absorb heat form one or more heat source fluids associated with the engine. The system can also include an expander configured to receive the working fluid from the at least two circuits, and generating mechanical power. The system also can include a condenser, a sub cooler, and at least one working fluid pump to pump the working fluid in the at least two circuits. The cooling system also includes a controller that can receive temperature and pressure values from various locations in the WHR system and control at least the flow rates of the working fluids in the at least two circuits.
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公开(公告)号：US12188431B2
公开(公告)日：2025-01-07
申请号：US17481863
申请日：2021-09-22
Applicant: CUMMINS INC.
Inventor： Timothy C. Ernst , Jared Carpenter Delahanty , Nathan Thomas Honican
Abstract: A waste heat recovery system comprising a thermal circuit. The thermal circuit includes a boiler and an expander fluidly coupled to the boiler. The thermal circuit further includes a power transfer system integrated to the expander. The power transfer system is configured to receive mechanical energy from the expander. The thermal circuit further includes an ejector fluidly coupled to the boiler and to the power transfer system. The ejector is configured to receive a motive flow of working fluid from the boiler. The ejector is further configured to receive a suction flow of working fluid from the power transfer system. The ejector is further configured to combine the motive flow of working fluid and the suction flow of working fluid.
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Patent Agency Ranking
公开(公告)号：US11739665B2
公开(公告)日：2023-08-29
申请号：US17612646
申请日：2020-05-14
Applicant: CUMMINS INC.
Inventor： Timothy C. Ernst , James A. Zigan , Jared Carpenter Delahanty
CPC classification number: F01K23/065 , F02G5/02 , F01K23/10 , F02G2260/00
Abstract: A waste heat recovery (WHR) system that can be utilized in internal combustion engine systems includes at least two circuits, one having a low pressure working fluid and another having a high pressure working fluid. Each circuit can include heat exchangers to allow the working fluid to absorb heat form one or more heat source fluids associated with the engine. The system can also include an expander configured to receive the working fluid from the at least two circuits, and generating mechanical power. The system also can include a condenser, a sub cooler, and at least one working fluid pump to pump the working fluid in the at least two circuits. The cooling system also includes a controller that can receive temperature and pressure values from various locations in the WHR system and control at least the flow rates of the working fluids in the at least two circuits.
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公开(公告)号：US20230117810A1
公开(公告)日：2023-04-20
申请号：US17910278
申请日：2021-03-15
Applicant: CUMMINS INC.
Inventor： Jared Carpenter Delahanty , Timothy C. Ernst , Achyut Paudel
Abstract: A waste heat recovery system for an engine system includes a first charge air cooler in communication with a working fluid path of the waste heat recovery system. The first charge air cooler includes a first waste heat recovery core and a first cooling fluid core. The first waste heat recovery core includes a first working fluid inlet configured to receive a working fluid from the working fluid path. The first working fluid conduit is coupled to the first working fluid inlet and a first working fluid outlet. The first cooling fluid core includes a first cooling fluid inlet in fluid communication with a cooling fluid source and a first cooling fluid conduit fluidly coupled to the first cooling fluid inlet and a first cooling fluid outlet. The first cooling fluid conduit is configured to direct cooling fluid from the first cooling fluid inlet to the first cooling fluid outlet.
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公开(公告)号：US20220316425A1
公开(公告)日：2022-10-06
申请号：US17481863
申请日：2021-09-22
Applicant: CUMMINS INC.
Inventor： Timothy C. Ernst , Jared Carpenter Delahanty , Nathan Thomas Honican
Abstract: A waste heat recovery system comprising a thermal circuit. The thermal circuit includes a boiler and an expander fluidly coupled to the boiler. The thermal circuit further includes a power transfer system integrated to the expander. The power transfer system is configured to receive mechanical energy from the expander. The thermal circuit further includes an ejector fluidly coupled to the boiler and to the power transfer system. The ejector is configured to receive a motive flow of working fluid from the boiler. The ejector is further configured to receive a suction flow of working fluid from the power transfer system. The ejector is further configured to combine the motive flow of working fluid and the suction flow of working fluid.
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公开(公告)号：US11187185B1
公开(公告)日：2021-11-30
申请号：US17222558
申请日：2021-04-05
Applicant: CUMMINS INC.
Inventor： Timothy C. Ernst , Jared Carpenter Delahanty , Nathan Thomas Honican
Abstract: A waste heat recovery system comprising a thermal circuit. The thermal circuit includes a boiler and an expander fluidly coupled to the boiler. The thermal circuit further includes a power transfer system integrated to the expander. The power transfer system is configured to receive mechanical energy from the expander. The thermal circuit further includes an ejector fluidly coupled to the boiler and to the power transfer system. The ejector is configured to receive a motive flow of working fluid from the boiler. The ejector is further configured to receive a suction flow of working fluid from the power transfer system. The ejector is further configured to combine the motive flow of working fluid and the suction flow of working fluid.
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公开(公告)号：US11125139B2
公开(公告)日：2021-09-21
申请号：US16342315
申请日：2017-10-19
Applicant: CUMMINS INC.
Inventor： Timothy C. Ernst , Christopher R. Nelson , Jared Carpenter Delahanty
Abstract: An engine cooling system comprises an engine cooling circuit, comprising a first pump structured to circulate engine coolant fluid therethrough. A remote coolant radiator positioned along the engine cooling circuit downstream of the engine and outside of a vehicle cooling package area is structured to transfer heat from the engine coolant fluid to air. A coolant heat exchanger is positioned along the engine cooling circuit in parallel to the remote coolant radiator. A waste heat recovery system comprises a working fluid circuit comprising a second pump. The coolant heat exchanger is positioned along the working fluid circuit and is structured to transfer heat from the engine coolant fluid to the working fluid. An expander is structured to convert energy from the heat transferred to the working fluid from the engine cooling fluid to mechanical energy. A condenser positioned downstream of the expander is structured to cool the working fluid.
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