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61. 发明授权

US11060441B2 Water pump with twin return ports 有权
公开(公告)号：US11060441B2
公开(公告)日：2021-07-13
申请号：US16376262
申请日：2019-04-05
申请人： Perkins Engines Company Limited
发明人： Marc B. Hewing , Jonathan Lee Gumbrell
IPC分类号： F01P7/16 , F01P5/10 , F01P11/04 , F01P3/12
摘要： A water pump housing includes a top horizontal pad defining a top horizontal pad normal axis pointing vertically, and a first return port and a second return port extending down vertically from the top horizontal pad.

62. 发明授权

US11040718B2 Launch control method for a vehicle 有权
公开(公告)号：US11040718B2
公开(公告)日：2021-06-22
申请号：US16648971
申请日：2018-09-17
申请人： Perkins Engines Company Limited
发明人： Michael Beyer , Michael Cronin , Steven Spencer , Matthew Mauritzson , Kevin Stutzman
IPC分类号： B60W10/02 , B60W30/18 , B60W10/101 , B60W10/18 , B60W30/186
摘要： A launch control method is provided for a vehicle having an accelerator, a brake and a continuously variable transmission (CVT). The method comprises determining: (i) a braking torque set by a vehicle operator by pressing a brake pedal of the vehicle; and (ii) a holding torque required to hold the vehicle in a stationary position. The method also determines that the operator has released the brake pedal. The brake is released whilst engaging a launch clutch of the CVT, wherein the launch clutch is engaged by increasing a clutch engagement pressure at a first pressure ramp rate, such that the sum of the braking torque and a clutch torque of the clutch remains equal to the holding torque. An acceleration torque requested by the operator via the accelerator is determined. The clutch engagement pressure is increased at a second pressure ramp rate when it is determined that the braking torque is substantially zero, such that the clutch torque is increased by the acceleration torque. A fixed minimum pressure ramp rate is stored, wherein the minimum pressure ramp rate increases the clutch engagement pressure towards a maximum engagement pressure. The current pressure ramp rate is compared with the minimum pressure ramp rate, and the clutch engagement pressure is switched to the minimum pressure ramp rate if the current pressure ramp rate is less than the minimum pressure ramp rate.

63. 发明申请

US20210040925A1 FUEL SYSTEM, FUEL INJECTOR NOZZLE ASSEMBLY, AND ENGINE HEAD ASSEMBLY STRUCTURED FOR DUCTED FUEL INJECTION 有权
公开(公告)号：US20210040925A1
公开(公告)日：2021-02-11
申请号：US16531826
申请日：2019-08-05
申请人： Caterpillar Inc. , Perkins Engines Company Limited
发明人： Bobby John , Robert Michael Campion , Jonathan W. Anders
IPC分类号： F02M45/08 , F02M61/10 , F02B23/06
摘要： A fuel system for an internal combustion engine includes a fuel injector having a nozzle with first and second sets of spray orifices formed therein. The fuel injector also includes a first and a second outlet check movable to open and close the first and second sets of spray orifices. Spray plume ducts are supported at fixed orientations relative to a nozzle of the fuel injector, and each are oriented in-line with a center axis defined by one of the spray orifices. The spray plume ducts may be directly attached to the fuel injector or to a duct carrier mounted to an engine head.

64. 发明授权

US10900450B1 Fuel system, fuel injector nozzle assembly, and engine head assembly structured for ducted fuel injection 有权
公开(公告)号：US10900450B1
公开(公告)日：2021-01-26
申请号：US16531826
申请日：2019-08-05
申请人： Caterpillar Inc. , Perkins Engines Company Limited
发明人： Bobby John , Robert Michael Campion , Jonathan W. Anders
IPC分类号： F02M63/00 , F02M45/08 , F02M61/10 , F02B23/06 , F02M61/18 , F02D41/40 , F02M61/20
摘要： A fuel system for an internal combustion engine includes a fuel injector having a nozzle with first and second sets of spray orifices formed therein. The fuel injector also includes a first and a second outlet check movable to open and close the first and second sets of spray orifices. Spray plume ducts are supported at fixed orientations relative to a nozzle of the fuel injector, and each are oriented in-line with a center axis defined by one of the spray orifices. The spray plume ducts may be directly attached to the fuel injector or to a duct carrier mounted to an engine head.

65. 发明申请

US20200318735A1 A METHOD OF ESTIMATING TORQUE IN A CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
公开(公告)号：US20200318735A1
公开(公告)日：2020-10-08
申请号：US16305354
申请日：2017-06-12
申请人： Perkins Engines Company Limited
发明人： Michael Beyer
IPC分类号： F16H61/468 , F16H61/66 , F16H61/472 , F16H63/50
摘要： A method is provided for estimating input torque and output torque in a continuously variable transmission having a variator. The method comprising the steps of determining (202) a transmission input and/or output speed, calculating (204) the speed of each of a plurality of transmission components by reflecting the transmission input and/or output speed through the transmission to each of the plurality of transmission components, and calculating (208) the speed rate of change of each of the plurality of transmission components. The inertia torque of each of the plurality of transmission components is calculated (210) based upon its respective speed rate of change and a predetermined component inertia value (209). The method further comprises the steps of determining (211) a motor torque of the variator, and calculating (212) a transmission input torque and transmission output torque by reflecting the motor torque of the variator through the transmission to the transmission input and output. The calculated transmission input and output torque values are adjusted (214) to account for the calculated inertia torque values of those of the plurality of transmission components which lie between the variator and the transmission input, and the variator and the transmission output, respectively.

66. 发明申请

US20200318528A1 WATER PUMP WITH TWIN RETURN PORTS 审中-公开
公开(公告)号：US20200318528A1
公开(公告)日：2020-10-08
申请号：US16376262
申请日：2019-04-05
申请人： Perkins Engines Company Limited
发明人： Marc B. Hewing , Jonathan Lee Gumbrell
IPC分类号： F01P7/16 , F01P5/10 , F01P11/04
摘要： A water pump housing includes a top horizontal pad defining a top horizontal pad normal axis pointing vertically, and a first return port and a second return port extending down vertically from the top horizontal pad.

67. 发明授权

US10591038B2 Variator-assisted transmission 有权
公开(公告)号：US10591038B2
公开(公告)日：2020-03-17
申请号：US15316793
申请日：2015-06-12
申请人： Caterpillar Inc.
发明人： Michael G. Cronin
IPC分类号： F16H47/04 , F16H3/66 , F16H48/10 , F16H37/08 , B60K17/08 , B60K17/16
摘要： A continuously variable transmission (CVT) is provided, where the CVT has an input shaft drivable by an engine, and an output shaft connectable to a load. A variator has an input side connected to the input shaft, and an output side. The variator is adjustable so as to vary a transmission ratio between the input and output sides. A differential transmission has a first differential input element connected to the input shaft, a second differential input element connected to the output side of the variator, and first and second differential output elements. A range transmission has a first range input element, and at least one range output element connected to the output shaft. A first connecting component selectively connects the first differential output element to the first range input element. A second connecting component selectively connects the second differential output element to the first range input element. The first and second connecting components are located in a connecting space defined between the differential and range transmissions. A vehicle incorporating this CVT, and a method of operating the CVT are also provided.

68. 发明申请

US20190211925A1 A Method Of Reducing Output Torque Deficits During Launch Of A Continuously Variable Transmission 审中-公开
公开(公告)号：US20190211925A1
公开(公告)日：2019-07-11
申请号：US16306059
申请日：2017-06-12
申请人： Perkins Engines Company Limited
发明人： Michael Beyer , Steven Spencer
IPC分类号： F16H61/462 , F16H47/04 , F16H63/50
CPC分类号： F16H61/462 , F16H47/04 , F16H63/50 , F16H2059/363 , F16H2059/702 , F16H2059/704
摘要： According to the present invention, there is provided a method of reducing output torque deficits during the launch of a vehicle having a continuously variable transmission, wherein the variator has an input connected to a prime mover and an output. The method comprises the steps of determining a rate of change of ratio in the transmission, and predicting a required motor speed ratio rate of change value of the variator on the basis of: (i) the determined rate of change of ratio in the transmission, and (ii) the configuration of the transmission. The speed of the variator output is adjusted so as to achieve the required motor speed ratio rate of change value.

69. 发明授权

US10047735B2 Mixing pump 有权
公开(公告)号：US10047735B2
公开(公告)日：2018-08-14
申请号：US14366815
申请日：2012-12-17
申请人： Perkins Engines Company Limited
发明人： Paul J. Smith
IPC分类号： F04B13/02 , F04C2/10 , B01F15/02 , F04C11/00
摘要： The present disclosure relates to a mixing pump (10) for combining two or more substances. More specifically, the mixing pump (10) is adapted to combine controlled amounts of those substances so as to produce a mixture containing predetermined proportions of those substances. The mixing pump includes a chamber (23) lying in fluid communication with a first substance inlet (50), a second substance inlet (51) and a mixture outlet (52). The mixing pump (10) also includes a pumping member disposed in the chamber (23) and adapted to draw first and second substances from the first and second substance inlets (50,51) and to expel a mixture of those substances through the mixture outlet (52).

70. 发明申请

US20180163605A1 INJECTOR DEPOSIT DETECTION FOR SCR INJECTION SYSTEM 审中-公开
公开(公告)号：US20180163605A1
公开(公告)日：2018-06-14
申请号：US15828883
申请日：2017-12-01
申请人： Perkins Engines Company Limited
发明人： Siddharth Subhash Gharpure , Stuart Smith , James K. McCloskey , Tom Carlill
IPC分类号： F01N11/00 , F01N3/20 , F01N3/28
CPC分类号： F01N11/002 , F01N3/208 , F01N3/2896 , F01N11/00 , F01N2550/05 , F01N2610/144 , F01N2610/146 , F01N2610/1493 , F01N2900/1808 , Y02T10/24 , Y02T10/47
摘要： A method for monitoring an SCR injection system is disclosed. The method includes operating a pump, and measuring a first pressure drop value in the SCR injection system during actuation of a reductant injector. A second pressure drop value in the SCR injection system is measured during a further actuation of the reductant injector. It is determined to perform a deposit mitigation strategy based on the first pressure drop value and the second pressure drop value.

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