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公开(公告)号：US11473511B2
公开(公告)日：2022-10-18
申请号：US17516570
申请日：2021-11-01
Applicant: Eaton Intelligent Power Limited
Inventor： Akibi Archer , James E. McCarthy, Jr. , Mark Osinski
Abstract: A method for jumping cylinder deactivation (“CDA”) modes to avoid a primary powertrain resonant frequency in a six-cylinder diesel engine-powered machine comprises operating an engine between an idled condition and a first engine speed limit in one of a two-cylinder CDA mode or a four-cylinder CDA mode. The method operates the engine between the first engine speed limit and a second engine speed limit in a three-cylinder CDA mode. The first engine speed limit is an engine speed below which the two-cylinder or four-cylinder CDA mode causes the machine to operate below a primary powertrain resonant frequency and also above which the three-cylinder CDA mode causes the machine to operate above the primary powertrain resonant frequency, thus avoiding the primary powertrain resonant frequency during operation. A second engine speed limit can be used to select a CDA mode that causes the machine to operate above the primary powertrain resonant frequency.
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公开(公告)号：US11286818B2
公开(公告)日：2022-03-29
申请号：US16099720
申请日：2017-05-10
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr. , Mark Van Wingerden
Abstract: A modular exhaust valve rocker arm assembly system comprising first and second rocker arm assemblies configured to each selectively receive a hydraulic lash adjustment assembly or a mechanical lash adjustment assembly. A main lifter assembly operably associated with the first and second rocker arm assemblies. An added motion lifter assembly operably associated with the first rocker arm assembly and configured to selectively provide one of an early lift profile and an extended lift profile, which can comprise at least one of an engine braking feature, a late intake valve closing (LIVC) feature, and an early exhaust valve opening (EEVO) feature. The main lifter can be configured as a fixed lifter or as a deactivating lifter for cylinder deactivation (CDA) configured to selectively move to a deactivated state configured to absorb motion of a normal lift profile cam into lost motion.
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公开(公告)号：US11261764B2
公开(公告)日：2022-03-01
申请号：US17079912
申请日：2020-10-26
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr. , Dale Arden Stretch
Abstract: A rocker arm assembly constructed in accordance to one example of the present disclosure includes an outer rocker arm and an inner rocker arm. The outer rocker arm has a first roller configuration that rotates around a first axis. The inner rocker arm has a second roller configuration that rotates around a second axis. The inner rocker arm is configured to move between a latched and unlatched position relative to the outer rocker arm. One of the first and second axes is positioned for alignment over an engine valve. The other of the first and second axes is offset from the engine valve.
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公开(公告)号：US11199162B2
公开(公告)日：2021-12-14
申请号：US16155884
申请日：2018-10-09
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr. , Douglas J. Nielsen
IPC: F02M26/47 , F02D41/14 , F02D41/00 , F02M26/68 , F02M26/01 , F02M26/16 , F02M26/21 , F02D41/02 , F02D41/26
Abstract: A computer control network is connected to a multiple-cylinder engine and implements aftertreatment temperature management. Processors are configured to determine an aftertreatment temperature-efficient air to fuel ratio that satisfies the sensed power output request, determine an air to fuel ratio adjustment, select an in-cylinder exhaust gas recirculation technique, select at least one EGR cylinder of the multiple-cylinder engine to implement the in-cylinder exhaust gas recirculation technique, and control the intake valves to open and the exhaust valves to close for the selected at least one EGR cylinder to adjust the oxygen and particulate content of the exhaust gas by applying at least a second compression stroke of the respective reciprocating piston of the at least one EGR cylinder to the exhaust gas to push the exhaust gas through to the intake manifold.
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公开(公告)号：US10907514B2
公开(公告)日：2021-02-02
申请号：US16209222
申请日：2018-12-04
Applicant: Eaton Intelligent Power Limited
Inventor： Fabiano Contarin , Nicola Andrisani , Eric Yankovic , Mark VanWingerden , Matthew Vance , James E. McCarthy, Jr. , Michael Guzak
Abstract: A valve train assembly includes at least a number of exhaust valves; at least one camshaft with at least a pair of a primary lift cam and an engine brake lift cam. A number of rocker arms each include a cam follower for following one of the primary lift cam and the engine brake lift cam. One rocker arm includes a cam follower following an engine brake lift cam. The rocker arm is provided with an engine brake capsule. Various biasing assemblies are disclosed that cooperate with one of the rocker arms of which the cam follower follows an engine brake lift cam to accommodate mechanical lash.
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Patent Agency Ranking
公开(公告)号：US20190178168A1
公开(公告)日：2019-06-13
申请号：US16326699
申请日：2017-08-17
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr. , Douglas J. Nielsen , Brian Franke
Abstract: A friction loss management system for an engine, comprises a combustion engine comprising a crankshaft and a plurality of cylinders, a reciprocating piston assembly connected to the crankshaft, a fuel injector, an intake valve, and an exhaust valve. A control unit comprises at least one set of control algorithms configured to receive engine power demand data, and determine a number of cylinders of the plurality of cylinders for deactivation based on the received engine power demand data and further based on sensed or stored friction values for the plurality of cylinders. Determining the number of cylinders of for deactivation minimizes friction between the plurality of cylinders and their respective reciprocating piston assembly by selecting a cylinder combination of active cylinders and deactivated cylinders with the lowest total friction while meeting engine power demand. All cylinders can be deactivated for purposes of coasting or controlling speed during platooning.
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27.发明授权公开(公告)号：US11454181B2
公开(公告)日：2022-09-27
申请号：US17000416
申请日：2020-08-24
Inventor： Alexander H. Taylor , Troy E. Odstrcil , Gregory M. Shaver , James E. McCarthy, Jr.
Abstract: A system and method for improving the functioning of a turbocharged diesel engine equipped with a cylinder deactivation system includes detecting when the turbocharged diesel engine is at risk of compressor surge, and then delaying the implementation of the cylinder deactivation. The delay may be a set period of time, or it may be determined by performing a set of instructions effective for estimating changes in intake manifold pressures over time if cylinders are deactivated, and then comparing the intake manifold pressure estimates to acceptable intake manifold pressure information. A formula for performing the required estimates is provided.
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公开(公告)号：US11300061B2
公开(公告)日：2022-04-12
申请号：US17251972
申请日：2019-06-11
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr. , Dale Arden Stretch , Mihai Dorobantu
Abstract: A method for engine braking on a type III valvetrain diesel engine comprises, on a first downstroke of a reciprocating piston, deactivating a normal intake lift profile on a first intake valve to implement a deactivated intake profile. Before a first upstroke of the reciprocating piston completes, a late intake valve closing lift profile is actuating on a second intake valve and beginning an engine brake lift profile on a first exhaust valve. On a second downstroke of the reciprocating piston, the engine brake lift profile on the first exhaust valve is completing and a normal exhaust lift profile is deactivating on a second exhaust valve to implement a deactivated exhaust profile on the second exhaust valve. Before a second upstroke of the reciprocating piston completes, a second engine brake lift profile is beginning on the first exhaust valve.
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公开(公告)号：US11300015B2
公开(公告)日：2022-04-12
申请号：US17260004
申请日：2019-07-12
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr. , Mihai Dorobantu
IPC: F01L1/26 , F01L1/053 , F01L13/00 , F01L13/06 , F02D13/04 , F02D13/06 , F01L1/18 , F01L1/24 , F02D13/02
Abstract: A valvetrain for a type II engine comprises a valve bridge, a switching rocker arm, a center capsule, a first auxiliary rocker arm, and a first auxiliary capsule. The selectively switching rocker arm is configured to switch configurations to transfer a first valve actuation profile from a first overhead cam lobe to the valve bridge center point and to transfer a second valve actuation profile from a second overhead cam lobe to the center point. The center capsule is configured to switch between an active state and a lost motion state. The first auxiliary rocker arm is configured to transfer a first auxiliary valve actuation profile from a third overhead cam lobe to the valve bridge first valve mounting area. The valvetrain can further comprise a second auxiliary rocker arm and a second auxiliary capsule.
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公开(公告)号：US11148654B2
公开(公告)日：2021-10-19
申请号：US16561623
申请日：2019-09-05
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr.
Abstract: A transmission system constructed in accordance to one example of the present disclosure includes an aftertreatment system and a controller. The transmission system is selectively coupled to an engine crankshaft of an internal combustion engine arranged on a vehicle. The aftertreatment system reduces emissions in an exhaust of the internal combustion engine. The controller operates in an aftertreatment heat-up mode such that the aftertreatment system is heated up to an elevated temperature and emissions are thereby reduced based on the elevated temperature. The controller operates in the aftertreatment heat-up mode when the internal combustion engine is operating at or below a brake mean effective pressure between three and four bar. The aftertreatment heat-up mode comprises increasing load on the internal combustion engine.
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