公开(公告)号：US11959431B2

公开(公告)日：2024-04-16

申请号：US18104168

申请日：2023-01-31

Applicant: INNIO Jenbacher GmbH & Co OG

Inventor： Douglas Keith ,  Josef Thalhauser ,  Nikolaus Spyra

IPC: F02D41/14 ,  F01N3/28 ,  F02B37/16 ,  F02B37/18 ,  F02B37/22 ,  F02D13/02 ,  F02D41/00 ,  F02D41/40 ,  F02P5/15 ,  F02D41/38

CPC classification number: F02D41/1448 ,  F01N3/2892 ,  F02B37/16 ,  F02B37/162 ,  F02B37/18 ,  F02B37/183 ,  F02B37/22 ,  F02D13/0234 ,  F02D41/0007 ,  F02D41/146 ,  F02D41/401 ,  F02P5/1502 ,  F02D2041/389

Abstract: An internal combustion engine with an open-loop or closed-loop control device (2), wherein at least one combustion chamber (3) of the internal combustion engine (1) is designed to burn a fuel-air mixture using at least one combustion parameters that can be influenced by the open-loop or closed-loop control device (2), wherein the open-loop or closed-loop control device (2) has an emission control loop that is configured to actuate the at least one actuator that influences the at least one combustion parameter as a substitute parameter for NOx emissions by means of a functional relationship in such way that at last one combustion parameter can be set for each target or actual power rating of the internal combustion engine (1), wherein the functional relationship takes account of an influence of a change of the exhaust backpressure (p3′) affecting at least one combustion chamber (3).

公开(公告)号：US11952935B2

公开(公告)日：2024-04-09

申请号：US17447552

申请日：2021-09-13

Applicant: Transportation IP Holdings, LLC

Inventor： Adam Edgar Klingbeil ,  James Robert Mischler ,  Daniel George Norton ,  Daniel Yerace

IPC: F02B3/08 ,  F02D19/06 ,  F02D19/08 ,  F02D19/10 ,  F02D29/02 ,  F02D35/02 ,  F02D41/00 ,  F02D41/14 ,  F02D41/40 ,  F02B43/00 ,  F02D41/30 ,  F02M21/02 ,  F02M26/05 ,  F02M26/23 ,  F02M26/43 ,  F02M37/00

CPC classification number: F02B3/08 ,  F02D19/061 ,  F02D19/0692 ,  F02D19/081 ,  F02D19/082 ,  F02D19/10 ,  F02D19/105 ,  F02D29/02 ,  F02D35/027 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/1497 ,  F02D41/401 ,  F02B43/00 ,  F02D41/008 ,  F02D41/3047 ,  F02M21/0278 ,  F02M26/05 ,  F02M26/23 ,  F02M26/43 ,  F02M37/0064 ,  Y02T10/30 ,  Y02T10/40

Abstract: Methods and systems are provided for maintaining combustion stability in a multi-fuel engine. In one example, a system may include first and second fuel systems to deliver liquid and gaseous fuels, respectively, to at least one cylinder of the engine, and a controller. The controller may be configured to supply the gaseous fuel to the at least one cylinder, inject the liquid fuel to the at least one cylinder to compression ignite the liquid fuel and combust the gaseous fuel in the at least one cylinder, and retard an injection timing of the injection of the liquid fuel based on a measured parameter associated with auto-ignition of end gases subsequent to the compression-ignition of the liquid fuel. In some examples, the controller may further be configured to adjust an amount of the gaseous fuel relative to an amount of the liquid fuel based on the measured parameter.

公开(公告)号：US11927148B2

公开(公告)日：2024-03-12

申请号：US16906838

申请日：2020-06-19

Applicant: Ford Global Technologies, LLC

Inventor： Maziar Khosravi ,  Helmut Hans Ruhland ,  Albert Breuer ,  Thomas Lorenz

IPC: F02D41/30 ,  F02B23/08 ,  F02D41/38 ,  F02D41/40 ,  F02F1/00 ,  F02F3/00 ,  F02M61/14 ,  F02F1/24

CPC classification number: F02D41/402 ,  F02B23/08 ,  F02D41/3094 ,  F02D41/3836 ,  F02F1/004 ,  F02F3/00 ,  F02M61/14 ,  F02B2023/085 ,  F02D2041/3881 ,  F02D2041/389 ,  F02D2200/024 ,  F02D2200/1002 ,  F02D2200/101 ,  F02F1/242 ,  Y02T10/12

Abstract: A method for operating a fuel injection system is provided. The method includes injecting fuel from a first direct fuel injection device arranged in a cylinder liner in a cylinder block into a combustion chamber and injecting fuel from a second direct fuel injection device arranged in a cylinder head into the combustion chamber, the first and second direct fuel injection devices arranged at an obtuse angle with regard to an intersection of central axes of the first and second direct fuel injection devices.

公开(公告)号：US11852096B2

公开(公告)日：2023-12-26

申请号：US17642427

申请日：2020-09-04

Applicant: MAN Truck & Bus SE

Inventor： Thomas Malischewski ,  Bruno Barciela Díaz-Blanco

IPC: F02D41/00 ,  F02D41/40 ,  F02B19/12 ,  F02B19/14 ,  F02B19/18 ,  F02M21/02 ,  F02M51/06 ,  F02P19/02

CPC classification number: F02D41/403 ,  F02B19/12 ,  F02B19/14 ,  F02B19/18 ,  F02D41/0027 ,  F02M21/0215 ,  F02M21/0248 ,  F02M51/061 ,  F02P19/02

Abstract: The present disclosure relates to a method for operating a combustion engine. A main amount of gas fuel is fed via a pre-chamber into a main combustion chamber. An ignition quantity of gas fuel is fed into the pre-chamber before the piston reaches the upper dead center to form an air-gas fuel mixture in the pre-chamber, which is fatter than in the main combustion chamber. The air-gas fuel mixture in the pre-chamber ignites itself. The air-gas fuel mixture in the main combustion chamber ignites through the self-ignited air-gas fuel mixture in the pre-chamber.

公开(公告)号：US11846224B2

公开(公告)日：2023-12-19

申请号：US18182328

申请日：2023-03-11

Applicant: ISUZU MOTORS LIMITED

Inventor： Takashi Ikeda ,  Hikaru Ishii ,  Shinji Goto

IPC: F01N3/20 ,  F02D41/02 ,  F01N11/00 ,  F02D41/40 ,  B01D53/94

CPC classification number: F01N3/208 ,  B01D53/9413 ,  F01N11/00 ,  F02D41/0245 ,  F02D41/401 ,  B01D2251/2067 ,  F01N2550/02 ,  F01N2610/144 ,  F01N2610/1453

Abstract: A urea removing apparatus has: a determining section that determines whether or not a urea aqueous solution is injected from an injection nozzle when control is performed to inject the urea aqueous solution from the injection nozzle into an exhaust pipe where exhaust gas of an engine flows; a supply control section that controls a pump that supplies the urea aqueous solution to the injection nozzle from a tank that stores the urea aqueous solution, and causes the urea aqueous solution to be supplied from the tank to the injection nozzle in a case that it is determined that the urea aqueous solution is not injected from the injection nozzle; and a temperature control section that performs control to raise the temperature of exhaust gas in a state where the urea aqueous solution supplied from the tank has been poured into the injection nozzle.

公开(公告)号：US11840969B2

公开(公告)日：2023-12-12

申请号：US18069445

申请日：2022-12-21

Applicant: Ford Global Technologies, LLC

Inventor： Eric Matthew Kurtz ,  Jason Brian Martz ,  Daniel Joseph Styles ,  Joshua Zachary Fried

IPC: F02D13/02 ,  F01N13/10 ,  F02D41/40 ,  F02D13/06 ,  F02M35/104

CPC classification number: F02D13/0215 ,  F01N13/10 ,  F02D13/06 ,  F02D41/401 ,  F02D41/403 ,  F02M35/104 ,  F02D2200/0802 ,  F02D2200/101

Abstract: Methods and systems are provided for re-combustion of exhaust in a cylinder of a multi-cylinder engine in order to increase the temperature of the exhaust for enhancing catalytic conversion within the multi-cylinder engine. In one example, a method may include expelling combusted gases from the cylinder into an intake manifold via an intake valve during an exhaust stroke, in order to rebreathe in the combusted gases from the intake manifold via the intake valve in a subsequent intake stroke.

公开(公告)号：US20230323831A1

公开(公告)日：2023-10-12

申请号：US18193702

申请日：2023-03-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuto IKEDA ,  Ryota SUGIYAMA ,  Takanobu GOTOH

IPC: F02D41/40 ,  F02D41/00

CPC classification number: F02D41/402 ,  F02D41/0087 ,  F02D2041/389

Abstract: A controller is configured to control an internal combustion engine. The internal combustion engine may execute multi-shot injection and single-shot injection and execute a deactivating process that stops supplying fuel to at least one of cylinders and supplies fuel to the remaining cylinders. The controller is configured to execute, when terminating the deactivating process to restart supplying fuel to a deactivated cylinder in which supply of fuel is stopped, a retarding process that executes a first fuel injection through the single-shot injection and retards a fuel injection start timing as compared to when executing the multi-shot injection.

公开(公告)号：US11767816B2

公开(公告)日：2023-09-26

申请号：US17868472

申请日：2022-07-19

Applicant: Mazda Motor Corporation

Inventor： Ryohei Ono ,  Yuji Harada ,  Kenji Uchida

IPC: F02P5/15 ,  F02P15/02 ,  F02D41/40

CPC classification number: F02P5/1502 ,  F02P15/02 ,  F02D41/401 ,  F02D2200/101

Abstract: An engine system is provided, which includes a cylinder block, a cylinder head, a piston, a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, and a controller electrically connected to the injector and the main spark plug and the subspark plug. In a low-load range where an engine load is below a given reference load, the controller controls the main spark plug and the subspark plug so that the subignition is performed after performing the main ignition, and the controller retards the timing of the subignition in a high-speed range where an engine speed is above a given reference engine speed, compared with a low-speed range below the reference engine speed.

公开(公告)号：US11761395B2

公开(公告)日：2023-09-19

申请号：US17742070

申请日：2022-05-11

Applicant: Tula Technology, Inc.

Inventor： Vijay Srinivasan

IPC: F01L13/00 ,  F02D13/06 ,  F02D17/02 ,  F02D41/00 ,  F02D41/30 ,  F02D41/40

CPC classification number: F02D41/0087 ,  F02D13/06 ,  F02D17/02 ,  F02D41/307 ,  F02D41/3064 ,  F02D41/401 ,  F01L2013/001 ,  F02D2250/21

Abstract: A variety of methods and arrangements are described for managing transitions between operational states of an internal combustion engine during skip fire operation of the engine.

公开(公告)号：US20230279823A1

公开(公告)日：2023-09-07

申请号：US17790430

申请日：2020-12-30

Applicant: Cummins Inc.

Inventor： David Michael Carey ,  Sanjay Manglam

IPC: F02D41/40 ,  F02D41/20 ,  F02D41/38

CPC classification number: F02D41/403 ,  F02D41/405 ,  F02D41/20 ,  F02D41/3818 ,  F02D2200/0602

Abstract: Various embodiments of the present disclosure relate to methods and systems for measuring an injected fuel quantity during multipulse injection events in a common rail of a fuel system including a fuel pump to supply fuel to the common rail. The method, using a control unit, determines if each of the multipulse injection events in a normal operating condition includes a pilot pulse, in response to determining that the pilot pulse is included, obtaining an enforced separation value between the pilot pulse and the main pulse to emulate a single-pulse injection; while the fuel pump is temporarily shut off, performing a temporary enforced separation on a fraction of the multipulse injection events; measuring a pressure change in the common rail during the temporary enforced separation; and resuming the normal operating condition of the multipulse injection events after the pressure change is measured.