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公开(公告)号：US20190178110A1
公开(公告)日：2019-06-13
申请号：US16063974
申请日：2016-12-19
Applicant: CUMMINS INC.
Inventor： Nimish Bagayatkar
Abstract: One embodiment relates to a waste heat recovery power drive system. The waste heat recovery power drive system includes a waste heat recovery system, which includes a heat exchanger operatively coupled to an engine so as to receive heat energy from the engine and transfer the heat energy to a working fluid. An expander is fluidly coupled to the heat exchanger to receive the working fluid from the heat exchanger. The expander is structured to convert heat energy from the working fluid to mechanical energy. A gearbox is operatively coupled to the expander. A front engine accessory drive includes a belt drive operatively coupling the gearbox to a crankshaft of the engine so as to transfer the mechanical energy from the gearbox to the crankshaft. A unitary assembly includes the front engine accessory drive, the gearbox, and the expander, and the unitary assembly is removable from the engine as a unitary component.
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公开(公告)号：US20170335745A1
公开(公告)日：2017-11-23
申请号：US15521962
申请日：2015-10-27
Applicant: CUMMINS INC.
Inventor： Jithin Benjamin , Timothy C. Ernst , James A. Zigan , Kevin C. Augustin , David E. Koeberlein , Nimish Bagayatkar
CPC classification number: F01P3/18 , F01K9/003 , F01K23/065 , F01P3/20 , F01P5/12 , F01P2005/105 , F01P2005/125 , F01P2060/14 , F02G5/04
Abstract: Integrated cooling systems including a frame configured for mounting to a vehicle chassis in a path of ram air entering an engine compartment of a vehicle, a radiator connected to the frame in the ram air path, a waste heat recovery (WHR) condenser, a recouperator connected to the frame above a ram air path and coupled to the WHR condenser, and a coolant boiler connected to the frame below the ram air path and coupled to the radiator and recouperator are disclosed. Cooling systems configured for use in a WHR system, including an inlet header fixedly disposed on a first end of a condenser, the inlet header fluidly coupled to a heat exchanger to receive the working fluid, and a receiver fixedly disposed on a second end of the condenser opposite the first end, the receiver configured to receive the working fluid from the condenser are also disclosed.
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公开(公告)号：US11001250B2
公开(公告)日：2021-05-11
申请号：US15909578
申请日：2018-03-01
Applicant: CUMMINS INC.
Inventor： Manik Narula , Timothy C. Ernst , Michael J. Ruth , Jonathan A. Dickson , J. Steven Kolhouse , Nimish Bagayatkar
Abstract: A waste heat recovery (WHR) hybrid power system can be utilized in vehicles to convert heat energy into mechanical energy. The WHR system 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 can be structured to selectively link a 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.
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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
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.
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公开(公告)号：US09932889B2
公开(公告)日：2018-04-03
申请号：US15546082
申请日：2016-10-02
Applicant: Cummins Inc.
Inventor： Nimish Bagayatkar
CPC classification number: F02B39/085 , F01D25/20 , F01K23/065 , F01M5/002 , F16H57/0434 , F16H57/0436 , F16H57/0441 , F16H57/0445 , F16N13/10
Abstract: A lubrication system and method for an engine are provided. In some embodiments, the lubrication method comprises driving a lube pump with a gearbox in a power drive housing, the gearbox including an expander shaft of an expander of a waste heat recovery system; suctioning lubrication fluid, with the lube pump, from a lube sump in the power drive housing; lubricating, with the lubrication fluid, an expander shaft bearing supporting the expander; and after lubricating the expander shaft bearing, transferring the lubrication fluid to the lube sump.waste heat recovery power drive and lubrication system therefor.
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Patent Agency Ranking
公开(公告)号：US10605149B2
公开(公告)日：2020-03-31
申请号：US15521962
申请日：2015-10-27
Applicant: CUMMINS INC.
Inventor： Jithin Benjamin , Timothy C. Ernst , James A. Zigan , Kevin C. Augustin, Sr. , David E. Koeberlein , Nimish Bagayatkar
Abstract: Integrated cooling systems including a frame configured for mounting to a vehicle chassis in a path of ram air entering an engine compartment of a vehicle, a radiator connected to the frame in the ram air path, a waste heat recovery (WHR) condenser, a recouperator connected to the frame above a ram air path and coupled to the WHR condenser, and a coolant boiler connected to the frame below the ram air path and coupled to the radiator and recouperator are disclosed. Cooling systems configured for use in a WHR system, including an inlet header fixedly disposed on a first end of a condenser, the inlet header fluidly coupled to a heat exchanger to receive the working fluid, and a receiver fixedly disposed on a second end of the condenser opposite the first end, the receiver configured to receive the working fluid from the condenser are also disclosed.
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公开(公告)号：US10513975B2
公开(公告)日：2019-12-24
申请号：US15923707
申请日：2018-03-16
Applicant: Cummins Inc.
Inventor： Nimish Bagayatkar
Abstract: A lubrication system and method for an engine arc provided. In some embodiments, the lubrication method comprises driving a lube pump with a gearbox in a power drive housing, the gearbox including an expander shaft of an expander of a waste heat recovery system; suctioning lubrication fluid, with the lube pump, from a lube sump in the power drive housing; lubricating, with the lubrication fluid, an expander shall bearing supporting the expander; and after lubricating the expander shall bearing, transferring the lubrication fluid to the lube sump waste heat recovery power drive and lubrication system therefor.
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公开(公告)号：US20180202352A1
公开(公告)日：2018-07-19
申请号：US15923707
申请日：2018-03-16
Applicant: Cummins Inc.
Inventor： Nimish Bagayatkar
Abstract: A lubrication system and method for an engine arc provided. In some embodiments, the lubrication method comprises driving a lube pump with a gearbox in a power drive housing, the gearbox including an expander shaft of an expander of a waste heat recovery system; suctioning lubrication fluid, with the lube pump, from a lube sump in the power drive housing; lubricating, with the lubrication fluid, an expander shall bearing supporting the expander; and after lubricating the expander shall bearing, transferring the lubrication fluid to the lube sump waste heat recovery power drive and lubrication system therefor.
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公开(公告)号：US20160326914A1
公开(公告)日：2016-11-10
申请号：US14704712
申请日：2015-05-05
Applicant: Cummins, Inc.
Inventor： Nimish Bagayatkar
IPC: F01K23/06
CPC classification number: F01K23/065 , F01K15/02
Abstract: A system includes an internal combustion engine; a waste heat recovery system in fluid communication with the internal combustion engine, the waste heat recovery system including an energy conversion system, wherein the waste heat recovery system is structured to extract heat energy from the engine, and wherein the energy conversion system is structured to generate power from the extracted heat energy; a gear box operatively coupled to an output of the energy conversion system; and an alternator operatively coupled to the gear box and the internal combustion engine, wherein the alternator consumes a first portion of the generated power to produce electrical energy while a remaining portion of the generated power is absorbed by the internal combustion engine via a front end accessory drive system.
Abstract translation: 一种系统包括内燃机; 与所述内燃机流体连通的废热回收系统，所述废热回收系统包括能量转换系统，其中所述废热回收系统构造成从所述发动机提取热能，并且其中所述能量转换系统被构造为 从提取的热能发电; 可操作地耦合到所述能量转换系统的输出的齿轮箱; 以及可操作地联接到所述齿轮箱和所述内燃机的交流发电机，其中所述交流发电机消耗所产生的功率的第一部分以产生电能，而所述发电的剩余部分经由所述内燃机经由前端附件 驱动系统。
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公开(公告)号：US11833902B2
公开(公告)日：2023-12-05
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
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.
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