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公开(公告)号：US11346740B2
公开(公告)日：2022-05-31
申请号：US16623099
申请日：2018-06-27
Applicant: Perkins Engines Company Limited
Inventor： Christopher J. Green
Abstract: An engine oil dipstick for monitoring an internal combustion engine comprises a processor and a sensor module. The sensor module is configured to sense a characteristic of the internal combustion engine and to output data representative of the sensed characteristic to the processor. The engine oil dipstick is configured to provide a housing for the processor. The processor is configured to determine a value representative of the firing frequency of the internal combustion engine based on the output data.
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公开(公告)号：US20220010709A1
公开(公告)日：2022-01-13
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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公开(公告)号：US20210340928A1
公开(公告)日：2021-11-04
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：US20210033173A1
公开(公告)日：2021-02-04
申请号：US16933156
申请日：2020-07-20
Applicant: Perkins Engines Company Limited
Inventor： Jonathan SCOTT
Abstract: A belt drive comprises a first pulley and at least one additional pulley and uses an elastic belt that is engagable over the pulleys. An auxiliary unit, connected to the first pulley, has a detent. A tensioning link comprises an open-ended slot for receiving in a slidable manner the detent. In an operating position of the belt drive the detent is locatable at a closed end of the open-ended slot and to obtain a belt changing position the detent is movable along the open-ended slot towards an open end of the open-ended slot. Movement of the detent along the open-ended slot requires simultaneous rotation of the auxiliary unit,
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公开(公告)号：US20210010403A1
公开(公告)日：2021-01-14
申请号：US16955519
申请日：2019-01-08
Applicant: PERKINS ENGINES COMPANY LIMITED
Inventor： Richard PILL , Srikanth TUMMALA
Abstract: A flowhood assembly 1 comprises an injector 30 which is fixable to a mount 50 in a number of alternative mounted positions defined by rotation of the injector about an injection axis X2 relative to the mount, The injector 30 includes one or more coolant ports 34, 35 which are connected in use to a supply of liquid coolant C. The mount 50 is fixable to a flowhood 10 in an upright, design orientation and in alternative connected positions defined by rotation of the flowhood 10 relative to the mount 50 about a connection axis X1. In a normal use position of the assembly the connection axis X1 of the flowhood is arranged at a predefined angle, optionally 0°, relative to a nominal horizontal plane P1. The injector 30 is not fixable to the mount 50 other than in the alternative mounted positions. In use in the normal use position, and in each of the alternative mounted positions of the injector, the injection axis X2 of the injector is oriented downwardly away from the injector relative to the horizontal plane P1, and at least one of the coolant ports 34, 35 is arranged above the horizontal plane P1 which passes through the injection axis X2 at an outlet end 32 of the nozzle.
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Patent Agency Ranking
公开(公告)号：US10808606B2
公开(公告)日：2020-10-20
申请号：US15970515
申请日：2018-05-03
Applicant: Perkins Engines Company Limited
Inventor： Menelaos Chatzakis , Prabhu Ramasamy , Adam Dudley
Abstract: A turbocharger housing for an engine includes a specifically designed mounting interface provided at a turbine outlet of a turbine housing. In particular, the mounting interface includes a mounting flange that is inclined with respect to a plane that is orthogonal to the longitudinal direction of the turbocharger. In particular, in case of an arrangement where the turbocharger is arranged such that the shaft of the same extends substantially horizontally, the mounting flange of the turbine outlet is rotated by a predetermined angle of, for example, 20 degrees about the vertical axis.
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公开(公告)号：US20200173878A1
公开(公告)日：2020-06-04
申请号：US16623099
申请日：2018-06-27
Applicant: Perkins Engines Company Limited
Inventor： Christopher J. Green
Abstract: An engine oil dipstick for monitoring an internal combustion engine comprises a processor and a sensor module. The sensor module is configured to sense a characteristic of the internal combustion engine and to output data representative of the sensed characteristic to the processor. The engine oil dipstick is configured to provide a housing for the processor. The processor is configured to determine a value representative of the firing frequency of the internal combustion engine based on the output data.
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公开(公告)号：US20200094176A1
公开(公告)日：2020-03-26
申请号：US16137703
申请日：2018-09-21
Applicant: Perkins Engines Company Limited
Inventor： James K. Batchelor , James A. Darley
Abstract: A filter base and a fluid filter and priming pump assembly are disclosed. A fluid filter and priming pump assembly may include a fluid filter housing and a filter base attached to the fluid filter housing, the filter base including a priming pump configured to move fluid through the fluid filter housing. The filter base or the fluid filter and priming pump assembly may be mounted in a plurality of different orientations. Related methods are also disclosed.
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公开(公告)号：US10415454B2
公开(公告)日：2019-09-17
申请号：US15793002
申请日：2017-10-25
Applicant: Perkins Engines Company Limited
Inventor： Martin George Constantine , Ross Daniel Collins
Abstract: A control system is provided for thermal management of an aftertreatment device in an engine that is provided in an enclosure. The engine has a cooling fan that is operable in a first direction to cool said engine. The fan is also operable in a reverse direction opposite to the first direction. The control system includes a first temperature sensor that measures a temperature of the engine or the enclosure. The control system further includes a second temperature sensor that measures a temperature of the aftertreatment device. The control system also includes a processor that is coupled to the first and second temperature sensors. The processor is configured to issue control signals, based on whether regeneration is required by the aftertreatment device or not, for selectively controlling a direction of operation associated with the cooling fan.
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公开(公告)号：US10400650B2
公开(公告)日：2019-09-03
申请号：US15829191
申请日：2017-12-01
Applicant: Perkins Engines Company Limited
Inventor： Siddharth Subhash Gharpure , Tom Carlill
Abstract: An SCR injection system for an internal combustion engine is disclosed. Under certain conditions, reductant fluid supplied by the system may form deposits in a reductant injector. In order to dissolve the deposits, a reductant supply line includes at least a portion with a downward slope that is disposed above a reductant inlet of the reductant injector. This allows reductant fluid in the sloped portion to flow to the reductant inlet due to gravity. Advantageously, a bent portion is provided between the reductant inlet and the sloped portion in order to trap reductant fluid that may flow back towards the reductant injector when the system is purged.
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