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公开(公告)号:US20170145949A1
公开(公告)日:2017-05-25
申请号:US15151526
申请日:2016-05-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: David P. Sczomak , Robert J. Gallon , Arun S. Solomon
CPC classification number: F02F1/425 , F02B31/085 , F02D9/1095 , F02D41/0002 , F02D41/0097 , F02D2041/0015 , F02D2200/101 , F02M35/1085 , Y02T10/146 , Y02T10/42
Abstract: A combustion system for use with one or more cylinder bores of an internal combustion engine includes at least one cylinder head defining first and second intake ports in fluid communication with the one or more cylinder bores. A flap is adjustably connected to the at least one cylinder head. The flap includes a first flap portion cooperating with the first intake port extending from an arm and a second flap portion cooperating with the second intake port extending from the arm and disposed adjacent the first flap portion. A controller in electrical communication with an actuator monitors the condition of the engine and actuates the flap to position the first and second flap portions between first and second positions to create a first combustion condition and a second combustion condition.
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公开(公告)号:US20200291906A1
公开(公告)日:2020-09-17
申请号:US16354690
申请日:2019-03-15
Applicant: GM Global Technology Operations LLC
Inventor: Michael A. Smith , Robert J. Gallon , Michael P. Kaczmar , Martino A. Casetti , Eric M. Hall
Abstract: An engine includes an air intake system, an exhaust system, a single-cylinder-sourced EGR system, an exhaust sensor that is disposed to monitor exhaust gas from the single one of the cylinders, and a diverter valve. A controller includes an instruction set that executable to determine operation of the engine in a fuel cut-off mode, discontinue fuel flow to the single one of the cylinders, divert exhaust gas from the single one of the cylinders to the air intake system, determine an airflow, temperature, and an equivalence ratio of the diverted exhaust gas from the single one of the cylinders, determine a mass flowrate of oxygen in the diverted exhaust gas, integrate the mass flowrate of oxygen in the diverted exhaust gas, and discontinue the diverting of the exhaust gas from the single one of the cylinders when the integrated mass flowrate of oxygen is greater than a threshold value.
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公开(公告)号:US20180100414A1
公开(公告)日:2018-04-12
申请号:US15291101
申请日:2016-10-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Robert J. Gallon
CPC classification number: F01L13/0036 , F01L1/047 , F01L1/46 , F01L2001/0473 , F01L2013/0052 , F02D13/0203
Abstract: Disclosed are sliding cam actuators, methods for making and using such actuators, and motor vehicles with internal combustion engines employing sliding cam actuators. A sliding cam actuator is disclosed with two actuator pins projecting from an actuator housing. These pins move from retracted to extended positions and engage a shift barrel on a sliding camshaft. An actuator assembly moves each actuator pin to its extended position into engagement with the shift barrel to thereby slide the camshaft to a different location. An actuator shank is attached to the actuator housing and engaged with the actuator pins. Moving the first actuator pin to its extended position moves the actuator shank in one direction, which moves the second actuator pin towards its retracted position. Moving the second actuator pin to its extended position causes the actuator shank to move in another direction, which moves the first actuator pin towards its retracted position.
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公开(公告)号:US10914273B2
公开(公告)日:2021-02-09
申请号:US16354690
申请日:2019-03-15
Applicant: GM Global Technology Operations LLC
Inventor: Michael A. Smith , Robert J. Gallon , Michael P. Kaczmar , Martino A. Casetti , Eric M. Hall
Abstract: An engine includes an air intake system, an exhaust system, a single-cylinder-sourced EGR system, an exhaust sensor that is disposed to monitor exhaust gas from the single one of the cylinders, and a diverter valve. A controller includes an instruction set that executable to determine operation of the engine in a fuel cut-off mode, discontinue fuel flow to the single one of the cylinders, divert exhaust gas from the single one of the cylinders to the air intake system, determine an airflow, temperature, and an equivalence ratio of the diverted exhaust gas from the single one of the cylinders, determine a mass flowrate of oxygen in the diverted exhaust gas, integrate the mass flowrate of oxygen in the diverted exhaust gas, and discontinue the diverting of the exhaust gas from the single one of the cylinders when the integrated mass flowrate of oxygen is greater than a threshold value.
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公开(公告)号:US10077727B2
公开(公告)日:2018-09-18
申请号:US14994531
申请日:2016-01-13
Applicant: GM Global Technology Operations LLC
Inventor: David P. Sczomak , Robert J. Gallon , Robert S. McAlpine , Arun S. Solomon
CPC classification number: F02D41/0275 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N2430/02 , F01N2610/02 , F01N2900/08 , F01N2900/1614 , F01N2900/1622 , F01N2900/1818 , F02D13/00 , F02D13/06 , F02D41/0087 , F02D41/3005 , F02D2041/0012 , F02D2200/0806 , Y02T10/18 , Y02T10/24
Abstract: A fuel control module controls fuel injection of an engine based on a predetermined lean air/fuel ratio. The predetermined lean air/fuel ratio is fuel lean relative to a stoichiometric air/fuel ratio for the fuel. A cylinder control module selectively deactivates opening of intake and exhaust valves of M cylinders of the engine to increase removal of nitrogen oxide (NOx) from exhaust. M is an integer greater than 0 and less than a total number of cylinders of the engine. The fuel control module further: disables fueling of the M cylinders while opening of the intake and exhaust valves of the M cylinders is deactivated; and, while fueling of the M cylinders is disabled and opening of the intake and exhaust valves of the M cylinders is deactivated, controls fuel injection of other cylinders based on a predetermined rich air/fuel ratio that is fuel rich relative to the stoichiometric air/fuel ratio.
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公开(公告)号:US10006323B2
公开(公告)日:2018-06-26
申请号:US15291101
申请日:2016-10-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Robert J. Gallon
CPC classification number: F01L13/0036 , F01L1/047 , F01L1/46 , F01L2001/0473 , F01L2013/0052 , F01L2013/101 , F02D13/0203
Abstract: Disclosed are sliding cam actuators, methods for making and using such actuators, and motor vehicles with internal combustion engines employing sliding cam actuators. A sliding cam actuator is disclosed with two actuator pins projecting from an actuator housing. These pins move from retracted to extended positions and engage a shift barrel on a sliding camshaft. An actuator assembly moves each actuator pin to its extended position into engagement with the shift barrel to thereby slide the camshaft to a different location. An actuator shank is attached to the actuator housing and engaged with the actuator pins. Moving the first actuator pin to its extended position moves the actuator shank in one direction, which moves the second actuator pin towards its retracted position. Moving the second actuator pin to its extended position causes the actuator shank to move in another direction, which moves the first actuator pin towards its retracted position.
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公开(公告)号:US09915221B2
公开(公告)日:2018-03-13
申请号:US15151526
申请日:2016-05-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: David P. Sczomak , Robert J. Gallon , Arun S. Solomon
IPC: F02B31/08 , F02F1/42 , F02D41/00 , F02M35/108 , F02D9/10
CPC classification number: F02F1/425 , F02B31/085 , F02D9/1095 , F02D41/0002 , F02D41/0097 , F02D2041/0015 , F02D2200/101 , F02M35/1085 , Y02T10/146 , Y02T10/42
Abstract: A combustion system for use with one or more cylinder bores of an internal combustion engine includes at least one cylinder head defining first and second intake ports in fluid communication with the one or more cylinder bores. A flap is adjustably connected to the at least one cylinder head. The flap includes a first flap portion cooperating with the first intake port extending from an arm and a second flap portion cooperating with the second intake port extending from the arm and disposed adjacent the first flap portion. A controller in electrical communication with an actuator monitors the condition of the engine and actuates the flap to position the first and second flap portions between first and second positions to create a first combustion condition and a second combustion condition.
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