公开(公告)号：US20240360796A1

公开(公告)日：2024-10-31

申请号：US18688356

申请日：2021-09-03

申请人： INNIO Jenbacher GmbH & Co OG

发明人： Wolfgang Fimml

IPC分类号： F02D19/02 ,  F02D19/06 ,  F02D19/08

CPC分类号： F02D19/024 ,  F02D19/0644 ,  F02D19/0647 ,  F02D19/0689 ,  F02D19/08

摘要： A controller configured to control a gas mixing device and/or a port injection valve and a direct fuel injector of an internal combustion engine in order to:
in a first operation mode, supply a first gaseous fuel to at least one main combustion chamber of the internal combustion engine via at least one intake valve, in a second operation mode, supply a second gaseous fuel to the at least one main combustion chamber of the internal combustion engine by use of the direct fuel injector, wherein a supply system for providing flushing gas to the direct fuel injector is provided and the controller is configured to activate the direct fuel injector during operation according to the first operation mode, such that the flushing gas is injected into the at least one main combustion chamber.

公开(公告)号：US20180100449A1

公开(公告)日：2018-04-12

申请号：US15565034

申请日：2016-04-07

申请人： WESTPORT POWER INC.

发明人： Alan B. WELCH ,  Colin W. BLAIR ,  Hamed KARIMI SHARIF

IPC分类号： F02D19/02 ,  F02D41/00 ,  F02D41/22

CPC分类号： F02D19/024 ,  F02D19/026 ,  F02D19/027 ,  F02D19/0642 ,  F02D41/0027 ,  F02D41/221 ,  F02D41/2467 ,  F02D41/3005 ,  F02D2041/225 ,  F02D2200/0614 ,  F02M21/0254 ,  F02M21/0275 ,  Y02T10/32 ,  Y02T10/36

摘要： Fuel injection accuracy of gaseous fuel injectors is important for efficient engine operation. However, the performance of the injectors varies from part to part and across their lifetime, and when an injector is under performing according to its specification it is often unknown what is causing the problem. An apparatus for operating a gaseous fuel injector in an engine comprises a mass flow sensor that generates a signal representative of the mass flow rate of the gaseous fuel in a supply conduit in the engine. A controller connected with the injector and the mass flow sensor is programmed to actuate the injector to introduce gaseous fuel into the engine; determine the actual mass flow rate of the gaseous fuel based on the signal representative of the mass flow rate; calculate a difference between the actual mass flow rate and a desired mass flow rate; and adjust at least one of on-time of the gaseous fuel injector and a magnitude of an injector activation signal by respective amounts based on the difference when the absolute value of the difference is greater than a predetermined value.

公开(公告)号：US20180094594A1

公开(公告)日：2018-04-05

申请号：US15549582

申请日：2016-02-10

申请人： WESTPORT POWER INC.

发明人： Philip G. HILL ,  Bronson D. PATYCHUK ,  Gordon P. MCTAGGART-COWAN ,  Ning WU

IPC分类号： F02D41/00 ,  F02M21/02 ,  F02D13/02 ,  F02D15/00

CPC分类号： F02D41/0027 ,  F02D13/0211 ,  F02D13/0265 ,  F02D13/0269 ,  F02D15/00 ,  F02D19/024 ,  F02D41/0007 ,  F02D41/006 ,  F02D2041/001 ,  F02M21/0215 ,  F02M21/0275 ,  F02M21/0284 ,  Y02T10/142 ,  Y02T10/144 ,  Y02T10/32

摘要： It is a challenge to reduce unburned hydrocarbon emissions for gaseous fuelled engines, especially at low engine load conditions, to meet demanding emission regulation targets. A method for reducing unburned hydrocarbon emissions in a lean-burn internal combustion engine that is fuelled with a gaseous fuel comprises adjusting the timing for closing of an intake valve as a function of engine operating conditions by one of advancing timing for closing of the intake valve and closing the intake valve earlier during an intake stroke; and retarding timing for closing of the intake valve and closing the intake valve later during a compression stroke. The volumetric efficiency of the internal combustion engine is reduced and unburned hydrocarbon emissions are maintained below a predetermined level.

公开(公告)号：US09890689B2

公开(公告)日：2018-02-13

申请号：US14927327

申请日：2015-10-29

申请人： Woodward, Inc.

发明人： Gregory James Hampson ,  Domenico Chiera

IPC分类号： F02B19/00 ,  F02B19/10 ,  F02B19/12 ,  F02D41/30 ,  F02D37/02 ,  F02M21/02

CPC分类号： F02B19/1085 ,  F02B19/1023 ,  F02B19/12 ,  F02D19/024 ,  F02D37/02 ,  F02D41/0027 ,  F02D41/3005 ,  F02D41/402 ,  F02M21/0215 ,  F02M21/0275 ,  F02M21/029 ,  F02P5/045 ,  F02P13/00 ,  F02P15/006 ,  F02P15/08 ,  Y02T10/125 ,  Y02T10/32 ,  Y02T10/44

摘要： In an internal combustion engine, gaseous fuel is injected in a first injection through a pre-combustion chamber into the combustion chamber to mix with air in the combustion chamber. The pre-combustion chamber has a jet aperture in fluid communication between the pre-combustion chamber and the combustion chamber. Mixed gaseous fuel and air is then ingested into the pre-combustion chamber from the combustion chamber and ignited. In a second injection, injecting gaseous fuel into the pre-combustion chamber and expelling, with the second injection, ignited gaseous fuel and air from the pre-combustion chamber through the jet aperture and into the combustion chamber as a flaming jet with a core of gaseous fuel.

公开(公告)号：US09816449B2

公开(公告)日：2017-11-14

申请号：US14431086

申请日：2014-03-03

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Sekai Miyamoto ,  Hidekazu Iwasaki ,  Motohiko Nishimura ,  Yosuke Nonaka

IPC分类号： F02M43/00 ,  F02D41/00 ,  F02D41/30 ,  F02B19/12 ,  F02M21/02 ,  F02B19/10 ,  F02D19/02 ,  F02M43/04

CPC分类号： F02D41/0027 ,  F02B19/1038 ,  F02B19/12 ,  F02D19/024 ,  F02D41/3094 ,  F02M21/0269 ,  F02M21/0284 ,  F02M43/04 ,  Y02T10/125 ,  Y02T10/32

摘要： A fuel supply controlling device includes: an auxiliary chamber fuel supply valve that supplies a gaseous fuel to an auxiliary chamber; a non-return valve between the auxiliary chamber fuel supply valve and the auxiliary chamber, the non-return valve blocking a reverse flow from the auxiliary chamber; a valve state detector that detects an operating state of the non-return valve; a rotation angle detector that detects a rotation angle within an engine cycle; and a controller that determines an operation command value of the auxiliary chamber fuel supply valve. The controller measures an actual operating state of the non-return valve based on signals from the valve state detector and the rotation angle detector in association with the detected rotation angle, and corrects the operation command value of the auxiliary chamber fuel supply valve such that the measured actual operating state is brought close to a target operating state.

公开(公告)号：US09771879B2

公开(公告)日：2017-09-26

申请号：US15144365

申请日：2016-05-02

申请人： Ford Global Technologies, LLC

发明人： Thomas G. Leone

IPC分类号： B60W10/02 ,  B60W10/06 ,  B60W10/10 ,  F02D19/06 ,  B60W10/00 ,  F02D41/00 ,  F02D41/38 ,  F02D41/02 ,  F02D41/08 ,  F02M21/02 ,  F02D19/02 ,  B60W30/188 ,  F02D19/08 ,  F02D41/30 ,  F02D41/10 ,  F02B23/10 ,  F02D13/02

CPC分类号： F02D19/0631 ,  B60W10/00 ,  B60W10/06 ,  B60W10/10 ,  B60W30/188 ,  F02B23/104 ,  F02D13/0265 ,  F02D19/024 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/0205 ,  F02D41/023 ,  F02D41/08 ,  F02D41/10 ,  F02D41/3094 ,  F02D41/38 ,  F02D2041/389 ,  F02D2200/0602 ,  F02M21/0275 ,  F02M21/0278 ,  Y02T10/32

摘要： Systems and methods for improving engine torque response are presented. In one example, engine idle speed is increased to shorten engine torque response based on engine operating conditions. The methods and systems may be useful for operating an engine that is supplied a gaseous fuel.

公开(公告)号：US09752520B2

公开(公告)日：2017-09-05

申请号：US13907432

申请日：2013-05-31

申请人： Ford Global Technologies, LLC

发明人： Ross Dykstra Pursifull ,  Samuel Guido ,  Ed Badillo

IPC分类号： F02D41/06 ,  F02D19/02 ,  F02D19/06 ,  F02D19/08 ,  F02D41/00 ,  F02D41/10 ,  F02D13/02 ,  F02D41/20

CPC分类号： F02D41/062 ,  F02D13/0219 ,  F02D19/024 ,  F02D19/061 ,  F02D19/0647 ,  F02D19/0692 ,  F02D19/081 ,  F02D41/0027 ,  F02D41/105 ,  F02D2041/2024 ,  F02D2041/2051 ,  F02D2200/0406 ,  Y02T10/32 ,  Y02T10/36

摘要： A method for starting an engine is provided. The method comprises in response to an engine start request, cycling a gaseous fuel injector prior to activating a starter motor. In this way, delayed engine starts using gaseous fuel may be mitigated.

公开(公告)号：US20170175663A1

公开(公告)日：2017-06-22

申请号：US15322610

申请日：2015-06-30

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Naoki SUZUKI ,  Satoshi TANIGUCHI ,  Ryoji NISHIUMI

IPC分类号： F02D41/24 ,  F02D41/26 ,  F02D41/12 ,  F02D41/14 ,  F02D41/00 ,  F02D19/02

CPC分类号： F02D41/2448 ,  F02D19/024 ,  F02D19/029 ,  F02D41/0027 ,  F02D41/123 ,  F02D41/1454 ,  F02D41/2441 ,  F02D41/2451 ,  F02D41/2467 ,  F02D41/26 ,  F02D2200/0611 ,  F02D2200/0612 ,  Y02T10/32

摘要： The air-fuel ratio feedback control is performed by using a first correction value which is determined depending on a difference between a detected air-fuel ratio (A/F) of an air-fuel mixture and a target A/F and a second correction value which is determined depending on the property of the fuel. Further, fuel property learning control is carried out to correct the first correction value and the second correction value so that an absolute value of the first correction value is not more than a threshold value, when the absolute value of the first correction value is larger than the threshold value after performing the charging with fuel. A combustion continuing correction value range, which is a range of the second correction value to allow the A/F of the mixture to be included in an A/F range in which combustion can be continued, is stored, and the second correction value is set to a value within the combustion continuing correction value range if the A/F feedback control and the fuel property learning control are interrupted.

公开(公告)号：US09528454B2

公开(公告)日：2016-12-27

申请号：US14576773

申请日：2014-12-19

申请人： Ford Global Technologies, LLC

发明人： Ross Dykstra Pursifull

IPC分类号： F02D41/00 ,  F02M21/02 ,  F02D19/02 ,  F02D19/06 ,  F02D41/22 ,  F02D41/38 ,  F02M63/02

CPC分类号： F02D41/0027 ,  F02D19/024 ,  F02D19/025 ,  F02D19/027 ,  F02D19/0623 ,  F02D19/0647 ,  F02D41/0025 ,  F02D41/221 ,  F02D41/222 ,  F02D41/3809 ,  F02D41/3863 ,  F02D2041/223 ,  F02D2041/224 ,  F02D2041/3881 ,  F02M21/0239 ,  F02M21/0245 ,  F02M63/023 ,  Y02T10/32 ,  Y02T10/36

摘要： Methods and systems are provided for fuel systems including a gaseous fuel. Fuel rail over-pressure may be addressed by temporarily closing a fuel tank valve of the gaseous fuel and initiating diagnostics routines to determine if a pressure regulator is degraded. If the pressure regulator is degraded, one or more fuel system components may be adjusted to enable fuel rail pressure control.

摘要翻译： 为包括气体燃料的燃料系统提供了方法和系统。 可以通过临时关闭气体燃料的燃料箱阀并启动诊断程序来确定压力调节器是否劣化，来解决燃油轨超压。 如果压力调节器降级，可以调节一个或多个燃料系统部件，以实现燃油轨压力控制。

公开(公告)号：US09482166B2

公开(公告)日：2016-11-01

申请号：US13633070

申请日：2012-10-01

申请人： Westport Power Inc.

发明人： Sean D. Richardson ,  Olivier P. M. Lebastard

IPC分类号： F01N3/18 ,  F02M26/05 ,  F02D41/00 ,  F01N3/10 ,  F01N3/20 ,  F02D19/10 ,  F02D41/02 ,  F02D19/06 ,  F02D19/08 ,  F02M21/02 ,  F02D19/02 ,  F01N13/00 ,  F02D41/08 ,  F02D41/40 ,  F02B37/00 ,  F02D41/14 ,  F02D41/38

CPC分类号： F02D41/0027 ,  F01N3/106 ,  F01N3/208 ,  F01N13/009 ,  F01N13/0097 ,  F01N2430/08 ,  F01N2900/08 ,  F01N2900/1404 ,  F01N2900/1621 ,  F02B37/00 ,  F02D19/024 ,  F02D19/061 ,  F02D19/0689 ,  F02D19/081 ,  F02D19/10 ,  F02D41/0025 ,  F02D41/0245 ,  F02D41/0275 ,  F02D41/08 ,  F02D41/1446 ,  F02D41/402 ,  F02D41/403 ,  F02D2041/389 ,  F02M21/0275 ,  F02M26/05 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/32 ,  Y02T10/36 ,  Y02T10/44

摘要： A method controls a direct-injection gaseous-fuelled internal combustion engine system to improve the conversion efficiency of an SCR converter that is operative to reduce levels of NOx. The method comprises detecting when the internal combustion engine is idling and timing the injection of a first quantity of fuel to begin injection when the engine's piston is near top dead center; and controlling the temperature of exhaust gas to be above a predetermined temperature that is defined by an operating temperature range that achieves a desired conversion efficiency for the selective catalytic reduction converter, by: (a) timing injection of the gaseous fuel to begin after timing for injection the first quantity of fuel, and (b) increasing exhaust gas temperature by increasing a delay in timing for injecting the gaseous fuel, while limiting the delay to keep concentration of unburned fuel exiting the combustion chamber below a predetermined concentration.

摘要翻译： 一种方法控制直接喷射气体燃料的内燃机系统，以提高SCR转换器的转换效率，其可操作以降低NOx的水平。 该方法包括：当发动机的活塞接近上止点时检测内燃机何时空转，以及定时喷射第一量的燃料开始喷射; 并且通过以下步骤，将废气的温度控制在由达到期望的转化效率的选择性催化还原转化器的转换效率的工作温度范围所限定的预定温度以下：（a）定时喷射气体燃料， 注入第一量的燃料，和（b）通过增加喷射气体燃料的定时延迟来提高废气温度，同时限制将燃烧室排出的未燃燃料浓度保持在预定浓度以下的延迟。