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公开(公告)号：US20140318495A1
公开(公告)日：2014-10-30
申请号：US14328320
申请日：2014-07-10
Applicant: Perkins Engines Company Limited
Inventor： YI WEI CHONG
IPC: F02D29/02
CPC classification number: F02D29/02 , F02D41/0097 , F02M37/06 , F02M37/14
Abstract: A speed-determining system in an internal combustion engine is disclosed. The internal combustion engine includes a crankshaft, a camshaft, and an engine control module (ECM). The system includes a first gear that rotates with the crankshaft and a second gear attached to the camshaft. At least one idler gear is operatively meshed with the first gear and the second gear. A fuel pump gear, meshed with the idler gear, is driven proportionally to the first gear and the second gear. The fuel pump gear includes a transversal face, a circumferential lip portion, and a number of notches along the circumferential lip portion. A proximity sensor, in communication with the ECM, is spaced from the second gear. A rotation of the fuel pump gear moves the notches relative to the proximity sensor, triggering the proximity sensor to register movement of the fuel pump gear and calculate at least a camshaft speed.
Abstract translation: 公开了内燃机中的速度决定系统。 内燃机包括曲轴，凸轮轴和发动机控制模块（ECM）。 该系统包括与曲轴一起旋转的第一齿轮和附接到凸轮轴的第二齿轮。 至少一个空转齿轮可操作地与第一齿轮和第二齿轮啮合。 与惰轮啮合的燃油泵齿轮与第一齿轮和第二齿轮成比例地驱动。 燃料泵齿轮包括横向面，周缘部分和沿着周缘部分的多个凹口。 与ECM连通的接近传感器与第二齿轮间隔开。 燃料泵齿轮的旋转相对于接近传感器移动切口，触发接近传感器以记录燃料泵齿轮的运动并计算至少凸轮轴速度。
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公开(公告)号：US20250101903A1
公开(公告)日：2025-03-27
申请号：US18891857
申请日：2024-09-20
Applicant: Perkins Engines Company Limited
Inventor： Siddharth GHARPURE , Matthieu Guttinger
Abstract: A method and apparatus for fault detection of a coolant diverter valve. The coolant diverter valve is arranged in a coolant system to control flow of coolant from a coolant reservoir to a diesel exhaust fluid tank. At least a first sensor is provided for measuring the pressure and/or temperature of the coolant. During operation of the coolant diverter valve, as required from time to time, the coolant diverter valve is commanded to open by energising the coolant diverter valve and commanded to close by de-energising the coolant diverter valve. Based on readings from the first sensor a controller can determine if the coolant diverter valve has failed to close when the coolant diverter valve is de-energised.
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公开(公告)号：US12020487B2
公开(公告)日：2024-06-25
申请号：US17797205
申请日：2021-01-28
Applicant: Perkins Engines Company Limited
Inventor： Michael Flatman , Samuel Alec Roberts , Thomas Henry Abel , Raymond Alan Wise , Peter Joseph Petrany
CPC classification number: G06V20/56 , B60Q1/14 , B60Q1/30 , B60R1/26 , G06V10/60 , H04N23/56 , H04N23/71 , H04N23/74 , B60Q2300/30 , B60R2300/10 , B60R2300/20 , B60R2300/80
Abstract: Changes in ambient light intensity are detected by processing image data from an image capture device to determine, iteratively, a signal-to-noise ratio of the image data. The signal-to-noise ratio is a ratio of average to variance of pixel values for some of the pixels forming the image. A control output is generated, based on the signal-to-noise ratio, that is responsive to changes in ambient light intensity. The control output is used control a light source of a vehicle.
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公开(公告)号：US12000326B2
公开(公告)日：2024-06-04
申请号：US18211921
申请日：2023-06-20
Applicant: Perkins Engines Company Limited
Inventor： Jamie Andrew Martin
CPC classification number: F01P11/0285 , F01P5/10
Abstract: The present disclosure relates to an engine system having an engine and a cooling system. An engine vent line is fluidly connected to the engine for venting air from the engine system and bypassing the coolant flow circuit. The engine vent line has a hydraulic diameter and length selected to provide a predetermined engine head loss for the engine and a rate of flow of coolant in the at least one engine vent line at or below a maximum engine vent flow rate target during operation of the engine. The engine vent line comprises a helical section in which a portion is formed into a helix.
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公开(公告)号：US11982240B2
公开(公告)日：2024-05-14
申请号：US18135299
申请日：2023-04-17
Applicant: Perkins Engines Company Limited
Inventor： David M. Heaton , Mark J. Kennedy
CPC classification number: F02D19/0644 , F02D19/0605 , F02D19/0671 , F02M21/0206 , F02M31/18 , F01N2240/02 , F01N2240/30
Abstract: An internal combustion engine assembly comprising a fuel reformer, a combustion chamber and a controller. The fuel reformer comprises a first channel and a second channel, a portion of the second channel being adjacent to a portion of the first channel to facilitate heat exchange between the first and second channels. The first channel comprises a catalyst selected to reform ammonia to hydrogen and nitrogen. The first channel is configured to receive ammonia, pass the ammonia over the catalyst and output a first mixture comprising ammonia, hydrogen and nitrogen. The composition of the first mixture depends on a first reformer temperature of the first channel. The combustion chamber is configured to receive the first mixture from the fuel reformer; to receive an oxidant; to combust the first mixture in the oxidant to produce heat and a first product; and to output the first product. The second channel of the fuel reformer is configured to receive the first product.
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Patent Agency Ranking
公开(公告)号：US20230182582A1
公开(公告)日：2023-06-15
申请号：US18076746
申请日：2022-12-07
Applicant: Perkins Engines Company Limited
Inventor： Robert D. BUSBY
CPC classification number: B60L50/60 , H01M10/44 , H02J7/0045 , H01M10/425 , H01M2220/20 , H01M2010/4271
Abstract: A contactor assembly is provided for a battery module of an electric work vehicle comprising a battery management system. The battery module is configured to be charged and discharged via a first circuit. The first circuit comprises the contactor assembly, the contactor assembly comprising a first contactor in series with a second contactor. Each of the first contactor and the second contactor is configured to have a higher resistance to welding for a switching current flowing in a preferred direction than in a nonpreferred direction. The first contactor and the second contactor have opposite preferred directions. In response to an instruction to switch the contactor assembly, the battery management system is configured to determine whether the switching current direction is in the first direction or in the second direction, and to break or complete the first circuit with the contactor having a preferred direction in the switching current direction.
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公开(公告)号：US11614045B2
公开(公告)日：2023-03-28
申请号：US17286183
申请日：2019-10-15
Applicant: Perkins Engines Company Limited
Inventor： Adam Stubbs , Kane Lok , Chris Burgess
Abstract: This disclosure relates to a method of controlling an engine and more particularly for controlling the transition between operating modes of an internal combustion engine such as between an economy mode and a performance mode. The method comprising the steps of determining a current fuel-air ratio at which the engine is operating and comparing it with a predetermined fuel-air ratio limit. The time duration for which the current fuel air-ratio is below the fuel-air ratio limit is determined and compared with a predetermined waiting time threshold value. A count is triggered, which is based on a difference between the current fuel-air ratio and the fuel-air ratio limit when the engine is operating at a current fuel-air ratio which is below the fuel-air ratio limit and this is compared with an intensity threshold value. The operating mode is shifted from the performance mode to the economy mode when both the time duration and the count exceed the waiting time threshold value and the intensity threshold value respectively. The operating mode is automatically shifted back to the performance mode when the current fuel-air ratio reaches or exceeds the fuel ratio limit. The method alternatively comprises using the air-fuel ratio, instead of the fuel-air ratio, and the switch from performance mode to economy mode only occurs when the current air-fuel is above a predetermined air-fuel limit and it remains above the predetermined air-fuel limit until two other predetermined thresholds have been reached.
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公开(公告)号：US20230060731A1
公开(公告)日：2023-03-02
申请号：US17899969
申请日：2022-08-31
Applicant: Perkins Engines CompanY Limited
Inventor： Siddharth GHARPURE , Guy WILLIAMSON
IPC: B01D35/027 , F01N3/20 , B01D35/26 , B01D35/30 , B01D53/94
Abstract: The present disclosure is directed towards a filter arrangement for a reductant supply system of a selective catalytic reduction system. The reductant supply system comprises a tank and a suction tube mounted at least partially in the tank for receiving reductant liquid from the tank. The filter arrangement comprises a restraining body, a filter at least partially forming a filter chamber, a filter outlet from the filter chamber formed through the restraining body and/or filter and a filter mount mounted to the restraining body and/or filter. The restraining body extends radially outwardly from the filter mount and is configured to restrain the filter such that, under the effect of buoyancy in the tank in use, gas in the filter chamber is directed towards the filter outlet.
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公开(公告)号：US11585728B2
公开(公告)日：2023-02-21
申请号：US16627500
申请日：2018-06-27
Applicant: Perkins Engines Company Limited
Inventor： Christopher J. Green
Abstract: A method and system for engine monitoring comprises a monitoring device and a remote device that are in communication. The monitoring device is incorporated in or directly attached to the internal combustion engine and functions to sense a characteristic of the internal combustion engine. The monitoring device is configured to transmit data representative of the sensed characteristic to a remote application running on a remote device. The remote device is configure to produce engine monitoring data from the transmitted data using engine characterising data stored on the remote device.
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公开(公告)号：US11585251B2
公开(公告)日：2023-02-21
申请号：US17294924
申请日：2019-11-18
Applicant: Perkins Engines Company Limited
Inventor： Antony J. Eager , Thomas E. Lloyd , Peter Moorhouse
Abstract: A method is disclosed for controlling an engine assembly comprising an internal combustion engine and an exhaust gas treatment apparatus. The aftertreatment assembly may require cleaning from time to time, and where this involves active thermal management of the aftertreatment assembly, the method involves performing the following steps: (a) imposing a first limit on engine speed; (b) awaiting an engine safe state; and (c) implementing a cleaning process comprising: (i) injecting fuel into the engine such that the fuel passes through the engine without combusting for the fuel to combust in the diesel oxidation catalyst so as to target an increase in exhaust gas temperature in the diesel oxidation catalyst; and (ii) removing the first limit on engine speed and targeting an engine speed set point, wherein the engine speed set point is at a higher speed than the first limit on engine speed.
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