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    WASTE HEAT RECOVERY SYSTEM INCLUDING A CLUTCHED FEEDPUMP
    21.
    发明申请
    WASTE HEAT RECOVERY SYSTEM INCLUDING A CLUTCHED FEEDPUMP 有权
    废物回收系统，包括离心进料器

    公开(公告)号：US20150159535A1

    公开(公告)日：2015-06-11

    申请号：US14102095

    申请日：2013-12-10

    Applicant: Cummins Inc.

    Inventor： James A. Zigan ,  Andrew P. Perr ,  Timothy C. Ernst

    IPC: F01N5/02

    CPC classification number: F01N5/02 ,  F01K23/065 ,  F01K23/101 ,  F02G5/02 ,  Y02T10/16 ,  Y02T10/166

    Abstract: An engine including a WHR system includes a clutch positioned to engage or disengage a WHR feedpump that moves working fluid through a WHR circuit. The clutch engages or disengages the feedpump under certain operating conditions of the engine and/or the WHR system, and/or at the request of an operator of the engine. Conditions may include cool or cold components, and insufficient working fluid. The operator may also request the clutch be disengaged, such as might be advantageous if the operator detects an operational problem with the WHR system or determines there is an advantage to operating the engine without the WHR system.

    Abstract translation: 包括WHR系统的发动机包括离合器，其定位成接合或分离通过WHR回路移动工作流体的WHR进料泵。 在发动机和/或WHR系统的某些操作条件下，和/或应发动机的操作者的要求，离合器接合或分离进料泵。 条件可能包括冷或冷组分，以及工作流体不足。 操作员还可以请求离合器脱离，例如如果操作者检测到WHR系统的操作问题或者确定在没有WHR系统的情况下操作发动机的优点是有利的。

    Waste heat recovery system with constant power output
    23.
    发明授权
    Waste heat recovery system with constant power output 有权
    余热回收系统，功率输出恒定

    公开(公告)号：US08635871B2

    公开(公告)日：2014-01-28

    申请号：US13756263

    申请日：2013-01-31

    Applicant: Cummins Inc.

    Inventor： Timothy C. Ernst ,  Christopher R. Nelson

    IPC: F01K23/10 ,  F02G3/00 ,  F01N3/02 ,  F01N5/02

    CPC classification number: F02G5/02 ,  F01K23/065 ,  F01K23/10

    Abstract: A waste heat recovery system for use with an engine. The waste heat recovery system receives heat input from both an exhaust gas recovery system and exhaust gas streams. The system includes a first loop and a second loop. The first loop is configured to receive heat from both the exhaust gas recovery system and the exhaust system as necessary. The second loop receives heat from the first loop and the exhaust gas recovery system. The second loop converts the heat energy into electrical energy through the use of a turbine.

    Abstract translation: 用于发动机的废热回收系统。 废热回收系统接收来自废气回收系统和废气流的热量输入。 该系统包括第一回路和第二回路。 第一回路被配置为根据需要从废气回收系统和排气系统接收热量。 第二回路从第一回路和废气回收系统接收热量。 第二回路通过使用涡轮将热能转换成电能。

    Waste heat recovery lube oil management
    24.
    发明授权
    Waste heat recovery lube oil management 有权

    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

    IPC: F02G5/04 ,  F01N5/02

    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.

    Waste heat recovery system and control
    26.
    发明授权
    Waste heat recovery system and control 有权

    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

    IPC: F01K23/06 ,  F02G5/02 ,  F01K23/10

    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.

    MULTI-CORE HEAT RECOVERY CHARGE COOLER
    27.
    发明申请
    MULTI-CORE HEAT RECOVERY CHARGE COOLER 有权

    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

    IPC: F02B29/04 ,  F01P7/14 ,  F02G5/02

    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.

    WASTE HEAT RECOVERY HYBRID POWER DRIVE
    29.
    发明申请
    WASTE HEAT RECOVERY HYBRID POWER DRIVE 有权

    公开(公告)号：US20210001703A1

    公开(公告)日：2021-01-07

    申请号：US16976213

    申请日：2019-02-27

    Applicant: CUMMINS INC.

    Inventor： Manik Narula ,  Timothy C. Ernst ,  Michael J. Ruth ,  Jonathan A. Dickson ,  J. Steven Kolhouse ,  Nimish Bagayatkar

    IPC: B60K6/32 ,  B60K6/46 ,  F02G5/00

    Abstract: A vehicle system includes an engine, a transmission, a differential, and a waste heat recovery (WHR) drive that converts thermal energy into mechanical and electrical energy. The WHR drive can include a WHR power unit structured to convert thermal energy into rotation of a WHR drive shaft. A motor/generator having a motor/generator shaft can selectively operate as a motor or a generator. A mechanical linkage is structured to selectively link an output shaft to one of the WHR drive shaft and the motor/generator drive shaft independently of the other of the WHR drive shaft and the motor/generator drive shaft. The output shaft is selectively coupled to one of the engine, the transmission, or the differential. The vehicle system may also include a traction motor to provide drive to the vehicle. The output shaft can be selectively coupled to the traction motor or the engine.

    Systems and methods for waste heat recovery for internal combustion engines
    30.
    发明授权
    Systems and methods for waste heat recovery for internal combustion engines 有权

    公开(公告)号：US10815929B2

    公开(公告)日：2020-10-27

    申请号：US16025485

    申请日：2018-07-02

    Applicant: Cummins Inc.

    Inventor： Timothy C. Ernst

    IPC: F02G5/02 ,  F01K7/16 ,  F01P3/20 ,  F01K23/06 ,  F01K23/10

    Abstract: A waste heat recovery system comprises an exhaust system, a thermal oil circuit, and a Rankine cycle circuit. The exhaust system is configured to provide exhaust gases. The thermal oil circuit comprises a first heat exchanger and a second heat exchanger. The first heat exchanger is positioned along the exhaust system. The first heat exchanger receives heat from exhaust gases and separately receives thermal oil such that heat from exhaust gases is transferred to thermal oil within the first heat exchanger. The second heat exchanger receives thermal oil from the first heat exchanger and provides thermal oil to the first heat exchanger. The Rankine cycle circuit circulates working fluid through the second heat exchanger separate from thermal oil such that heat from thermal oil is transferred to working fluid within the second heat exchanger. An expander utilizes heat within working fluid to produce mechanical energy.

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