公开(公告)号：US12196125B2

公开(公告)日：2025-01-14

申请号：US18076760

申请日：2022-12-07

Applicant: The Board of Trustees of the Leland Stanford Junior University

Inventor： Christopher F. Edwards ,  Bernard H. Johnson, IV ,  Gregory B. Roberts

IPC: F02B3/08 ,  F02D13/02 ,  F02D19/06 ,  F02D41/00 ,  F02D41/14 ,  F02B23/06 ,  F02M26/05 ,  F02M26/23

Abstract: A neat-fuel direct-injected compression ignition engine having a thermal barrier coated combustion chamber, an injection port injects fuel that satisfies a stoichiometric condition with respect to the intake air, a mechanical exhaust regenerator transfers energy from exhaust gas to intake compression stages, an exhaust O2 sensor inputs to a feedback control to deliver quantified fuel, a variable valve actuation (VVA) controls valve positions, an exhaust gas temperature sensor controls exhaust feedback by closing the exhaust valve early according to the VVA, or recirculated to the chamber with an exhaust-gas-recirculation (EGR), heat exchanger, and flow path connecting an air intake, a load command input, and a computer operates the EGR from sensors to input exhaust gas according exhaust temperature signals and changes VVA timing, the load control is by chamber exhaust gas, the computer operates a fuel injector to deliver fuel independent of exhaust gas by the O2 signals.

公开(公告)号：US11754005B2

公开(公告)日：2023-09-12

申请号：US17256511

申请日：2019-06-28

Applicant: VOLVO TRUCK CORPORATION

Inventor： Fredrik Rahm ,  Johan Carlén Andersson ,  Ulf Aronsson

IPC: F02D41/00 ,  F02D13/02 ,  F02M26/05 ,  F02M26/16 ,  F02M26/34 ,  F02D41/14 ,  F02M26/22 ,  F02B37/20 ,  F02B37/24 ,  F02B39/04 ,  F02B39/10 ,  F02B67/06 ,  F02D41/26 ,  F02M35/10

CPC classification number: F02D41/0007 ,  F02B37/20 ,  F02B37/24 ,  F02B39/04 ,  F02B39/10 ,  F02B67/06 ,  F02D13/0234 ,  F02D13/0269 ,  F02D41/0047 ,  F02D41/0077 ,  F02D41/1448 ,  F02D41/26 ,  F02M26/05 ,  F02M26/16 ,  F02M26/22 ,  F02M26/34 ,  F02M35/10222 ,  F02B2275/32 ,  F02D2200/0406

Abstract: The invention relates to an internal combustion engine comprising a crankshaft, one or more cylinders including a cylinder head, a piston, a combustion chamber, one or more intake valves, one or more exhaust valves, an intake system configured for feeding intake air to the engine, an exhaust system configured for conveying exhaust gas away from the engine, a pressure charging system connected to the intake system and an exhaust gas recirculation (EGR) system arranged to feed branched off exhaust gas from the exhaust system to the intake system via an EGR conduit wherein: * the internal combustion engine includes a valve actuation device configured to allow for late or early closing of the intake valves in accordance with late or early Miller-type valve timing, and wherein * the EGR system includes a gas feeding device configured to feed exhaust gas through the EGR conduit in modes of operation wherein the pressure in the intake system exceeds the pressure in the exhaust system, * wherein the gas feeding device is a displacement pump and wherein the gas feeding device is arranged so that exhaust gas recirculating in the EGR system during operation of the engine passes the gas feeding device before being mixed with intake air in the intake system. Additionally, a method of improving efficiency of an internal combustion engine is described.

公开(公告)号：US20230193860A1

公开(公告)日：2023-06-22

申请号：US18063423

申请日：2022-12-08

Applicant: Ford Global Technologies, LLC

Inventor： Joerg Kemmerling ,  Michael Forsting ,  Frank Wunderlich

IPC: F02M26/15 ,  F02M26/05 ,  F02M26/06 ,  F02D41/00

CPC classification number: F02M26/15 ,  F02M26/05 ,  F02M26/06 ,  F02D41/0055 ,  F02M2026/004

Abstract: Methods and systems are provided for an exhaust system. In one example, the exhaust system includes an aftertreatment device and a recirculation passage. A recirculation valve is positioned in the recirculation passage and configured to control an amount of recirculated exhaust gas flowing through the recirculation passage to the aftertreatment device. The exhaust system further includes a diverter valve configured to control a flow of engine exhaust gases to different portions of a catalyst of the aftertreatment device.

公开(公告)号：US11680518B2

公开(公告)日：2023-06-20

申请号：US17855508

申请日：2022-06-30

Applicant: Garrett Transportation I Inc.

Inventor： Jaroslav Pekar ,  Paul Dickinson

IPC: F02B37/18 ,  F02M26/05 ,  F02M26/06 ,  F02B37/24 ,  F02B39/10 ,  F02D9/04 ,  F02D41/00 ,  F02D41/26

CPC classification number: F02B37/186 ,  F02B37/24 ,  F02B39/10 ,  F02D9/04 ,  F02D41/0007 ,  F02D41/0047 ,  F02D41/26 ,  F02M26/05 ,  F02M26/06

Abstract: A system for coordinated control of an engine and associated components over various engine-modes of operation. The system may include an engine, one or more components controllable to adjust operation of the diesel engine, and a system controller. The system controller may be connected to the engine and the one or more components. The system controller may include a supervisory controller and one or more component controllers. The supervisory controller may receive system control variable set points and coordinate component control variable set points for the components to achieve the system control variable set points. The component controllers may control operation of the components to achieve the control variable set points for the components by setting manipulated variable set points for the components based on the component control variable set points and a model based non-linear dynamic inversion.

公开(公告)号：US11674478B2

公开(公告)日：2023-06-13

申请号：US17786518

申请日：2021-03-09

Applicant: KUBOTA CORPORATION

Inventor： Yu Suzuki ,  Yuki Yoshita ,  Kazuya Ishida ,  Satoshi Shibata ,  Katsunori Ikemachi ,  Masayasu Takami ,  Tomohiro Suzuki

IPC: F02M26/05 ,  F02M26/47 ,  F02M35/112 ,  F02M35/10

CPC classification number: F02M26/05 ,  F02M26/47 ,  F02M35/10222 ,  F02M35/112 ,  F02M35/1038

Abstract: An air intake amount measurement device 200 includes an intake distributor 3 distributing intake air CYL to cylinders 11, 12, 13, and 14, a temperature detector 202 detecting a temperature Ti of the intake air CYL, a pressure detector 201 for detecting a pressure Pi of intake air CL, and a computing unit 100 that computes an air intake amount mfcyl of the intake air CYL on the basis of the temperature Ti transmitted from the temperature detector 202 and the pressure Pi transmitted from the pressure detector 201. The temperature detector 202 detects the temperature Ti of the intake air CYL at a region W spanning, out of an inside of the intake distributor 3, a first branch portion 31 and a second branch portion 32.

公开(公告)号：US11668269B2

公开(公告)日：2023-06-06

申请号：US16962459

申请日：2019-01-17

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Douglas Anthony Hughes ,  Brandon Dennis Biller ,  Jim Kevin Spring ,  Jesse Drummond ,  Matthew Fortini

IPC: F02M26/49 ,  F02M26/34 ,  F04C28/06 ,  F04C28/08 ,  F04C18/12 ,  F02M26/33 ,  F02M26/05 ,  F02M26/47 ,  F02M26/50 ,  F02D41/00 ,  F02B1/14 ,  F02B3/06 ,  F02B33/38 ,  F02B39/10 ,  F02B33/34 ,  F04C18/14 ,  F04C29/02 ,  F04C29/04 ,  F02M26/00

CPC classification number: F02M26/49 ,  F02B1/14 ,  F02B3/06 ,  F02B33/34 ,  F02B33/38 ,  F02B39/10 ,  F02D41/006 ,  F02D41/0007 ,  F02D41/0065 ,  F02M26/05 ,  F02M26/33 ,  F02M26/34 ,  F02M26/47 ,  F02M26/50 ,  F04C18/126 ,  F04C28/06 ,  F04C28/08 ,  F02M26/00 ,  F02M2026/004 ,  F04C18/14 ,  F04C29/02 ,  F04C29/04 ,  Y02T10/12 ,  Y02T10/40

Abstract: A method of operating an exhaust gas recirculation pump for an internal combustion engine including: providing an EGR pump assembly including an electric motor coupled to a roots device having rotors, the EGR pump operably connected to an internal combustion engine; providing an EGR control unit lined to the EGR pump assembly; providing sensors linked to the EGR control unit; determining if a motor speed is within a predetermined target (step SI), wherein when the motor speed is within the predetermined target then; determining if a motor torque is within a predetermined target (step S2) wherein when the motor torque is within the predetermined target then; determining if a motor temperature is within a predetermined target (step S3) wherein when the motor temperature is within the predetermined target then; maintaining operation of the exhaust gas recirculation pump.

公开(公告)号：US11441519B2

公开(公告)日：2022-09-13

申请号：US17110917

申请日：2020-12-03

Applicant: Tula Technology, Inc. ,  Cummins Inc.

Inventor： Xin Yuan ,  Shikui Kevin Chen ,  Jennifer K. Light-Holets ,  Scott R. Bardakjy

IPC: F02M26/43 ,  F02D41/00 ,  F02M26/05

Abstract: A system and method of integrating an engine having dynamic skip fire control with an exhaust gas recirculation system in a turbocharged internal combustion engine is described. An engine control system determines an appropriate firing pattern based at least in part on a desired exhaust gas recirculation flow rate. Signals from sensors in the intake manifold and exhaust system may also be used as part of a feedback loop to determine a desired exhaust gas recirculation flow rate.

公开(公告)号：US20220235717A1

公开(公告)日：2022-07-28

申请号：US17160510

申请日：2021-01-28

Applicant: Southwest Research Institute

Inventor： Graham T Conway ,  Andre Swarts ,  Robert Mitchell

IPC: F02D41/00 ,  F02M26/05 ,  F02M26/10

Abstract: Methods and systems for reducing the temperature of the charge air provided to a turbocharged internal combustion engine. A supercharger is installed on the air intake path, upstream the turbocharger's compressor. A secondary charge air cooler is installed between the supercharger and the main compressor. This over-compresses the intake air, so that an expansion turbine installed downstream the turbocharger's compressor can cool the charge air and still provide sufficient charge air pressure into the intake manifold.

公开(公告)号：US20220228521A1

公开(公告)日：2022-07-21

申请号：US17716341

申请日：2022-04-08

Applicant: CUMMINS INC.

Inventor： Daniel J. Mohr ,  Bogdan V. Pavlov ,  Nikhil J. Ajotikar ,  Yi-cheng Chen ,  David Eckroth

IPC: F01N13/10 ,  F02B37/02 ,  F02M26/05 ,  F02M26/14 ,  F01N1/06 ,  F02M26/42

Abstract: An exhaust manifold comprises a plurality of exhaust intake conduits structured to be fluidly coupled to an engine and receive exhaust gas from a corresponding cylinder of the engine. At least one exhaust intake conduit provides a reduction in an exhaust intake conduit cross-sectional area from an inlet to an outlet. A plurality of bends are each defined by a respective one of the exhaust intake conduit outlets. An exhaust intake manifold is fluidly coupled to the exhaust intake manifold and defines an exhaust intake manifold flow axis. Each of the plurality of bends is shaped so as to define an angle of approach of exhaust gas flowing therethrough. A first angle of approach of the first bend relative to the exhaust intake manifold flow axis is smaller than a second angle of approach of an inner second bend.

公开(公告)号：US20220163001A1

公开(公告)日：2022-05-26

申请号：US17598352

申请日：2020-02-10

Applicant: Yanmar Power Technology Co., Ltd.

Inventor： Masahiro Itani ,  Hideo Shiomi ,  Keiji Kunisawa

IPC: F02D21/08 ,  F02D41/00 ,  F02M26/05 ,  F02M26/49

Abstract: An engine control device controls an engine provided with an EGR device. The engine control device is provided with an abnormality determining unit, a restricted operation unit, and a restriction released operation unit. The abnormality determining unit determines whether an abnormality has arisen in the EGR device. The restricted operation unit performs restricted operation in which some functions of the engine are restricted, if the abnormality determining unit has determined that an abnormality has arisen in the EGR device. If a manipulation to release the restricted operation has been performed, the restriction released operation unit switches from restricted operation to restriction released operation in which the restrictions on some of the functions of the engine are released, and performs said restriction released operation.