公开(公告)号：US20240229694A9

公开(公告)日：2024-07-11

申请号：US18402710

申请日：2024-01-02

申请人： Yanmar Power Technology Co., Ltd.

发明人： Yu Matsui ,  Naotoshi Furukawa

IPC分类号： F01N3/021 ,  F01N11/00 ,  F01N13/10 ,  F01P5/04 ,  F01P5/06 ,  F02F1/24 ,  F02M26/22 ,  F02M35/10 ,  F02M35/104

CPC分类号： F01N3/0211 ,  F01N11/002 ,  F01N13/10 ,  F01P5/04 ,  F01P5/06 ,  F02F1/243 ,  F02M26/22 ,  F02M35/10222 ,  F02M35/104

摘要： An engine device includes an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward form the flat portion and are fixed to the cylinder head. The flat portion and the leg portion are formed integrally. Portions between the legs are each formed in an arch-shape.

公开(公告)号：US20230279801A1

公开(公告)日：2023-09-07

申请号：US18316646

申请日：2023-05-12

申请人： Caterpillar Inc.

发明人： Dean W. WALTERS ,  Allen Y. CHEN ,  DeForest C. GOULD, III ,  Jason L. VAN FAROWE ,  Quinton M. BURCAR

IPC分类号： F01P3/18 ,  F02M26/22 ,  F01P3/02 ,  F02F1/10 ,  F02F7/00

CPC分类号： F01P3/18 ,  F02M26/22 ,  F01P3/02 ,  F02F1/10 ,  F02F7/0021

摘要： An internal combustion engine system including a cylinder block, a cylinder head attached to the cylinder block, an EGR cooler, and a coolant collector bracket is provided. The cylinder head includes a plurality of coolant passages. The coolant collector bracket is coupled to and between the cylinder head and the EGR cooler. The coolant collector bracket includes a plurality of coolant inlets directly coupled to a plurality of outlets of the plurality of coolant passages of the cylinder head. The coolant collector bracket also includes an EGR coolant outlet directly coupled to an inlet of the EGR cooler. The coolant collector bracket also includes an EGR cooler inlet directly coupled to an outlet of the EGR cooler.

公开(公告)号：US11692499B2

公开(公告)日：2023-07-04

申请号：US17950658

申请日：2022-09-22

申请人： SUBARU CORPORATION

发明人： Tomonori Kashiwadate ,  Susumu Shimura ,  Seita Nakano ,  Sotaro Yoshii ,  Kenta Hoshi

IPC分类号： F02D41/00 ,  F02D41/24 ,  F02M26/22

CPC分类号： F02D41/0077 ,  F02D41/0065 ,  F02D41/2451 ,  F02M26/22

摘要： An intake and exhaust system includes an engine, an intake air channel, an exhaust gas channel, an EGR channel, an EGR valve, and a control device. By adjusting an opening degree of the EGR valve, the control device executes EGR control processing to control a flowrate of a recirculating exhaust gas. An isolation valve is disposed in the EGR channel closer to the exhaust gas channel than the EGR valve is. An air admittance valve is disposed in the EGR channel closer to the exhaust gas channel than the EGR valve is and closer to the intake air channel than the isolation valve is. The control device executes learning processing to learn a relationship between an actual flowrate and a reference flowrate while the isolation valve is closed and the air admittance valve is opened. The control device executes the EGR control processing based on a learning processing result.

公开(公告)号：US20230193842A1

公开(公告)日：2023-06-22

申请号：US18108790

申请日：2023-02-13

申请人： GUANGZHOU AUTOMOBILE GROUP CO., LTD.

发明人： Xinxin Shi ,  Xuetong LIAN ,  Qingpeng SU ,  Weibo Zhao

IPC分类号： F02D41/00 ,  F02M26/22 ,  F02M26/06

CPC分类号： F02D41/0072 ,  F02M26/22 ,  F02M26/06 ,  F02D2041/0067

摘要： The present disclosure provides a method for controlling EGR rate of a low pressure EGR system, a system and a vehicle. The method calculates a molar concentration of water molecules of exhaust gas processed by EGR cooler, calculates a molar concentration of water molecules, obtains coefficient as to excess air, and calculates a molar volume ratio of air according to the coefficient. Under a maximum limit of humidity, an allowable EGR rate of the exhaust gas processed by the EGR cooler is determined and an allowable EGR rate of the mixed gas before entry into supercharger and/or compressor is also determined, a lower EGR rate between the two allowable rates is set as a maximum for application actual working conditions. The present disclosure solves a problem of condensation caused by an introduction of exhaust gas from the existing gasoline engine.

公开(公告)号：US11655782B2

公开(公告)日：2023-05-23

申请号：US17879177

申请日：2022-08-02

申请人： DENSO CORPORATION

发明人： Yuichiro Moritani ,  Hideki Hayashi

IPC分类号： F02M26/52 ,  F02M26/22 ,  F02M26/70

CPC分类号： F02M26/52 ,  F02M26/22 ,  F02M26/70

摘要： A valve device increases or decreases a flow rate of EGR gas. The valve device includes a housing, a bypass valve body, and an EGR valve body. The housing includes a first upstream passage into which the EGR gas cooled by an EGR cooler flows, a second upstream passage into which the EGR gas that bypasses the EGR cooler flows, and a downstream passage connected to the first upstream passage and the second upstream passage, and provided downstream with respect to the first upstream passage and the second upstream passage. The bypass valve body opens and closes the second upstream passage. The EGR valve body is provided in the downstream passage and rotates around an EGR valve axis to open and close the downstream passage.

公开(公告)号：US20190120112A1

公开(公告)日：2019-04-25

申请号：US16157376

申请日：2018-10-11

申请人： AISAN KOGYO KABUSHIKI KAISHA

发明人： Yuzuru ITO

IPC分类号： F01N11/00 ,  F02M26/15 ,  F02M26/22 ,  F01N13/00 ,  F01N13/16

CPC分类号： F01N11/00 ,  F01N13/008 ,  F01N13/16 ,  F01N2560/025 ,  F01N2560/08 ,  F02M26/15 ,  F02M26/22

摘要： An exhaust leak detecting apparatus includes an exhaust pressure sensor to detect the exhaust pressure in a portion of an exhaust passage that allows exhaust gas discharged from an engine to flow therethrough, the portion being located at a position upstream of a catalyst for purifying exhaust gas, and an exhaust leak determining part to determine that exhaust gas is leaking or may leak from the exhaust passage upstream of the catalyst and generate a warning when the exhaust pressure detected by the exhaust pressure sensor falls outside a predetermined range.

公开(公告)号：US20180245529A1

公开(公告)日：2018-08-30

申请号：US15757624

申请日：2017-02-03

申请人： MAZDA MOTOR CORPORATION

发明人： Tadasuke Matsumoto ,  Shouichi Aiga ,  Yoshitomo Matsuo ,  Kazuhiro Nishimura ,  Tomoaki Fujiyama

IPC分类号： F02D41/00 ,  F02M26/07 ,  F02P5/04

CPC分类号： F02D41/0052 ,  F02B37/18 ,  F02B37/22 ,  F02D21/08 ,  F02D41/0077 ,  F02M26/01 ,  F02M26/05 ,  F02M26/07 ,  F02M26/22 ,  F02M26/47 ,  F02P5/045 ,  Y02T10/144

摘要： An engine control device including: a turbocharger; an EGR device that includes an EGR passage, an EGR valve, and an EGR cooler; and a PCM that, based on an operation state of an engine, controls the EGR valve to adjust an EGR rate that is a ratio of an EGR gas amount to a total amount of gas introduced to a cylinder of the engine. The PCM controls the EGR valve such that, in a high load range and a medium load range for the engine, the EGR device recirculates the EGR gas into an intake passage; and controls the EGR valve such that an EGR rate in the high load range is lower than an EGR rate in the medium load range at a same engine speed.

公开(公告)号：US20180209382A1

公开(公告)日：2018-07-26

申请号：US15755190

申请日：2015-08-25

申请人： BorgWarner Inc.

发明人： Mihai MICLEA-BLEIZIFFER ,  Sascha KARSTADT ,  Urs HANIG ,  Christopher THOMAS

IPC分类号： F02M26/19 ,  F02M26/06 ,  B01F3/02 ,  B01F5/04 ,  B01F5/06

CPC分类号： F02M26/19 ,  B01F3/02 ,  B01F5/0473 ,  B01F5/0486 ,  B01F5/0647 ,  F02B29/0406 ,  F02M26/05 ,  F02M26/06 ,  F02M26/22 ,  F02M26/28

摘要： A number of variations may include a product including a mixing device comprising a housing including a first fluid intake port, a fluid output port, a fluid flow conduit transversely connecting the first fluid intake port to the fluid output port, a second fluid intake port radially distal from the fluid flow conduit, and an at least partially annular second fluid flow compartment radially connecting the second fluid intake port to the fluid flow conduit, wherein the second fluid flow compartment is oriented to at least partially surround a portion of the fluid flow conduit and wherein the second fluid flow compartment is constructed and arranged to facilitate the mixing of incoming first fluid flow and incoming second fluid flow to create a fluid mixture that flows through the fluid flow conduit.

公开(公告)号：US20180179969A1

公开(公告)日：2018-06-28

申请号：US15900689

申请日：2018-02-20

申请人： Deere & Company

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

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

CPC分类号： F02D41/0077 ,  F02D9/08 ,  F02D41/0002 ,  F02D41/0072 ,  F02D2041/141 ,  F02D2041/1416 ,  F02D2041/1433 ,  F02D2041/1434 ,  F02D2200/0402 ,  F02M26/14 ,  F02M26/17 ,  F02M26/22 ,  F02M26/47 ,  F02M26/53 ,  Y02T10/47

摘要： The inverse engine model or feed forward controller 310 takes the controlled state estimates 324 generated by the engine observer model 304, the model corrections 320 generated by the observer controller 306, desired state inputs 322 and various system parameters 326 and calculates desired engine state commands 330 and feed forward mass flow terms 332 to achieve the desired D/A and F/A values included in the desired state inputs 322. 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：US20180171907A1

公开(公告)日：2018-06-21

申请号：US15382504

申请日：2016-12-16

申请人： Ford Global Technologies, LLC

发明人： Joseph Norman Ulrey ,  Daniel Paul Madison ,  Brad Alan Boyer

IPC分类号： F02D41/00 ,  F02D41/26 ,  F02M26/14 ,  F02M26/20 ,  F02M26/22 ,  F02M26/53 ,  F02M35/10 ,  F02B37/00 ,  F01N13/10

CPC分类号： F02D41/0077 ,  F01N3/101 ,  F01N3/103 ,  F01N3/2053 ,  F01N3/2066 ,  F01N13/107 ,  F01N2240/02 ,  F01N2240/36 ,  F01N2260/14 ,  F01N2410/00 ,  F01N2430/10 ,  F01N2560/025 ,  F01N2590/11 ,  F02B37/00 ,  F02D41/0007 ,  F02D41/0065 ,  F02D41/26 ,  F02D2200/0404 ,  F02M26/14 ,  F02M26/20 ,  F02M26/22 ,  F02M26/53 ,  F02M35/10222 ,  F02M35/10255 ,  F02M35/10268 ,  Y02T10/144 ,  Y02T10/22

摘要： 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, in response to an intake throttle being at least partially closed, intake air may be routed from the intake passage to the first exhaust manifold via an exhaust gas recirculation (EGR) passage where the intake air may be heated via an EGR cooler. The heated intake air may then be routed to an intake manifold, downstream of the intake throttle, via a flow passage coupled between the first exhaust manifold and the intake manifold.