公开(公告)号：US12123379B2

公开(公告)日：2024-10-22

申请号：US17656724

申请日：2022-03-28

Applicant: Deere & Company

Inventor： Randy R. Scarf ,  Bradley R. Watkins ,  Glen H. Martin, III

IPC: F02M26/24 ,  F02M26/04 ,  F02M26/26 ,  F02M26/38 ,  F02M26/53

CPC classification number: F02M26/24 ,  F02M26/26 ,  F02M26/38 ,  F02M26/04 ,  F02M26/53

Abstract: A dual core exhaust gas recirculation cooler includes a cooler housing having an EGR inlet, first and second EGR outlets, a cooling circuit extending from a coolant inlet through the cooler housing to a coolant outlet, a first EGR circuit core extending from the EGR inlet to the first EGR outlet, and a second EGR circuit core extending to the second EGR outlet from the EGR inlet or the first EGR outlet. A first EGR valve is configured to selectively couple the first EGR circuit core to a return passageway. A second EGR valve is configured to selectively couple the second EGR circuit core to the return passageway. The EGR valves are configured to selectively flow exhaust gas through the cooler housing within either the first EGR circuit core only or within both the first EGR circuit core and the second EGR circuit core.

公开(公告)号：US11698047B2

公开(公告)日：2023-07-11

申请号：US17349720

申请日：2021-06-16

Applicant: Caterpillar Inc.

Inventor： Xinyu Ge ,  Brian P. Brennan ,  James H. Mutti, Jr.

IPC: F02M26/50 ,  F02M26/23 ,  F02M26/33 ,  F02M26/49 ,  F02M26/53 ,  F02D41/00 ,  F02D41/14

CPC classification number: F02M26/50 ,  F02D41/0002 ,  F02D41/0055 ,  F02D41/0077 ,  F02D41/1446 ,  F02M26/23 ,  F02M26/33 ,  F02M26/49 ,  F02M26/53 ,  F02D2041/0017 ,  F02D2200/021

Abstract: A method for cleaning an exhaust gas recirculation (EGR) valve includes scheduling a cleaning for the EGR valve, and receiving a signal indicative of a temperature of exhaust gas produced with an internal combustion engine. The method may also include generating a command to actuate an intake throttle valve to a restrictive position to increase the temperature of the exhaust gas for cleaning the EGR valve, and generating a signal to repeatedly actuate the EGR valve.

公开(公告)号：US11441521B2

公开(公告)日：2022-09-13

申请号：US16627309

申请日：2017-08-15

Applicant: VOLVO TRUCK CORPORATION ,  Jian Li ,  John Lowe

Inventor： Jian Li ,  John Lowe

IPC: F02M26/71 ,  F02M26/68 ,  F02M26/16 ,  F02M26/21 ,  F02M26/53 ,  F02M26/69

Abstract: A valve for m exhaust gas recirculation Mae in an engine includes a first barrel connectable to a first group of cylinders, a second barrel connectable to a second group of cylinders, and a center barrel between the first and second barrels and connectable to an intake of the engine, A poppet valve with two valve heads mounted on a valve stem is provided to open and close openings between the first and second barrels, with one of the valve beads of the poppet valve opening into the center barrel Vanes are provided in the center barrel to direct flow from the opening by the valve bead that opens into the center barrel toward the outlet opening.

公开(公告)号：US11384716B2

公开(公告)日：2022-07-12

申请号：US16863785

申请日：2020-04-30

Applicant: Deere & Company

Inventor： Eric J. Haaland ,  Randy R. Scarf

IPC: F02M26/16 ,  F02M26/05 ,  F02M26/53 ,  F01N13/10 ,  F02B37/22 ,  F02M26/74 ,  F02B37/12

Abstract: An exhaust manifold for use with an internal combustion engine, the exhaust manifold including a body, one or more fluid passageways defined by the body, a valve in fluid communication with at least one of the one or more fluid passageways, the valve being adjustable between an open configuration and a closed configuration, a mounting bracket supported by the body, and an actuator in operable communication with the valve and configured to adjust the valve between the open and closed configurations, and wherein the actuator is coupled to the mounting bracket.

公开(公告)号：US11156170B2

公开(公告)日：2021-10-26

申请号：US16611907

申请日：2018-02-28

Applicant: AISIN SEIKI KABUSHIKI KAISHA

Inventor： Seiichi Fujimoto ,  Masaaki Kaneko ,  Hirokazu Tanaka ,  Suguru Kamiya ,  Kohei Fujii

IPC: F02D13/02 ,  F02M26/14 ,  F01L1/04 ,  F01N13/10 ,  F02M26/53 ,  F01L1/047 ,  F02M35/10

Abstract: A control device for an internal combustion engine includes an internal combustion engine and a valve opening-closing timing control device. The valve opening-closing timing control device has a phase adjustment mechanism for setting a relative rotation phase of a driving-side rotator and a driven-side rotator. The phase adjustment mechanism overlaps a timing of opening an intake valve with a timing of opening an exhaust valve, by setting, in a predetermined period, the relative rotation phase such that the exhaust valve closes after a top dead center position has been reached, and a bypass passage is provided that connects an exhaust passage of one cylinder that is in an exhaust process to the exhaust passage of another cylinder that is in an intake process at the same time as the exhaust process.

公开(公告)号：US10830164B2

公开(公告)日：2020-11-10

申请号：US15900689

申请日：2018-02-20

Applicant: Deere & Company

Inventor： John L. Lahti ,  Michael J. Pipho ,  Dustin W. Ridenour ,  Michael J. Maney

IPC: F02D41/00 ,  F02D9/08 ,  F02M26/14 ,  F02M26/17 ,  F02M26/22 ,  F02M26/47 ,  F02M26/53 ,  F02D41/14

Abstract: A fresh air and exhaust gas control method for an engine includes monitoring parameters of an engine in an operational state using a plurality of sensors and generating engine state estimates using an engine observer model. The engine observer model represents an intake manifold volume, an exhaust manifold volume, and a charge air cooler volume. The method also includes generating a turbocharger rotational speed estimate using a turbocharger model and calculating a fresh air flow correction factor. The method further includes determining a desired air throttle position and a desired EGR valve position based on setpoint commands, the monitored engine parameters, the fresh air flow correction factor, the engine state estimates, and the turbocharger rotational speed estimate. The method additionally includes adjusting the air throttle based on the desired air throttle position and adjusting the EGR valve based on the desired EGR valve position.

公开(公告)号：US10316771B2

公开(公告)日：2019-06-11

申请号：US15382457

申请日：2016-12-16

Applicant: Ford Global Technologies, LLC

Inventor： Joseph Norman Ulrey ,  Michael Howard Shelby ,  Kim Hwe Ku ,  Brad Alan Boyer

IPC: F02D41/00 ,  F02M26/14 ,  F02M26/20 ,  F02M26/53 ,  F01N3/10 ,  F01N13/10 ,  F02D41/06 ,  F02D41/26 ,  F02D41/14 ,  F02D29/02 ,  F02D13/02 ,  F02M26/05 ,  F02M26/07 ,  F02M26/44

Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, during a cold start, a method may include adjusting a position of a first valve disposed in an exhaust gas recirculation (EGR) passage based on an engine operating condition, the EGR passage coupled between the first exhaust manifold coupled to a first set of exhaust valves and the intake passage, upstream of a compressor. As one example, the engine operating condition may include an engine temperature or a temperature of a catalyst disposed in the exhaust passage.

公开(公告)号：US20190003412A1

公开(公告)日：2019-01-03

申请号：US16124358

申请日：2018-09-07

Applicant: Ford Global Technologies, LLC

Inventor： Joseph Norman Ulrey ,  Gopichandra Surnilla

IPC: F02D41/14 ,  F02D41/00 ,  F02M26/20 ,  F02M26/53 ,  F01N13/10 ,  F02D41/06 ,  F02M26/14 ,  F02D13/02 ,  F02B25/14 ,  F02D41/12 ,  F02D41/08

Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, an amount of opening overlap between a plurality of intake valves and a first set of exhaust valves coupled to the first exhaust manifold may be adjusted responsive to a transition from an estimated combustion air-fuel content to a leaner air-fuel content of the blowthrough air on a cylinder to cylinder basis. As one example, the transition may be determined from an output of an oxygen sensor positioned within the first exhaust manifold or an exhaust runner of each of the first set of exhaust valves.

公开(公告)号：US10151236B2

公开(公告)日：2018-12-11

申请号：US14806324

申请日：2015-07-22

Applicant: Ford Global Technologies, LLC

Inventor： Xiaogang Zhang

IPC: F02B37/007 ,  F02D41/00 ,  F02B37/22 ,  F02B37/18 ,  F02M26/08 ,  F02M26/53

Abstract: Methods and systems for adjusting a branch communication valve in a dual scroll turbocharger system are provided. In one example, a method may include adjusting a position of a valve arranged between a first adaptor and a second adaptor to enable mixing of exhaust received from an exhaust manifold, the exhaust delivered to a first scroll and a second scroll of a turbocharger to drive a turbine during certain engine operating conditions.

公开(公告)号：US10145315B2

公开(公告)日：2018-12-04

申请号：US15382494

申请日：2016-12-16

Applicant: Ford Global Technologies, LLC

Inventor： Joseph Norman Ulrey ,  Daniel Paul Madison ,  Brad Alan Boyer ,  James Leiby

IPC: F02D13/02 ,  F02M26/53 ,  F01N13/10 ,  F02B37/00 ,  F02D41/00 ,  F02D41/14 ,  F02D41/26

Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, an intake valve timing, exhaust valve timing of a first set of exhaust valves coupled to the first exhaust manifold, and a position of an exhaust gas recirculation (EGR) valve in an EGR passage may be adjusted in coordination with one another in response to a condition at a compressor. The EGR passage may be coupled between the intake passage, upstream of the compressor, and the first exhaust manifold.