公开(公告)号：US08984860B2

公开(公告)日：2015-03-24

申请号：US13807236

申请日：2010-07-02

Applicant: Chun Tai

Inventor： Chun Tai

IPC: F01N3/00 ,  F01N3/021 ,  F01N3/023 ,  F01N3/025 ,  F01N3/10 ,  F01N9/00 ,  F02D41/02 ,  F02D41/14 ,  F01N13/00 ,  F01N3/20

CPC classification number: F01N3/021 ,  F01N3/0231 ,  F01N3/0253 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/023 ,  F01N2560/06 ,  F01N2610/146 ,  F01N2900/1402 ,  F01N2900/1404 ,  F02D41/024 ,  F02D41/029 ,  F02D41/1446 ,  Y02A50/2325 ,  Y02T10/26 ,  Y02T10/47

Abstract: In a diesel engine and exhaust aftertreatment system, a controller is arranged to control operation of the engine to obtain a first set of exhaust characteristics and to control a fuel injector to inject fuel upstream of a DPF at a first rate of injection until at least one condition is attained, and, after the at least one condition is attained, to control the fuel injector so that a rate of fuel injection is reduced and to contra! operation of the engine to obtain a second set of exhaust characteristics so that regeneration of the DPF occurs. At least one characteristic of the first and second sets of characteristics beina, different. A method for treating, diesei engine exhaust is also disclosed.

Abstract translation: 在柴油发动机和排气后处理系统中，控制器被布置成控制发动机的操作以获得第一组排气特性，并且控制燃料喷射器以第一喷射速率向DPF喷射燃料，直到至少一个 条件得到，并且在达到至少一个条件之后，为了控制燃料喷射器，使得燃料喷射速率降低并且与之相反！ 发动机的操作以获得第二组排气特性，从而发生DPF的再生。 第一和第二组特征的至少一个特征是不同的。 还公开了一种处理发动机排气的方法。

公开(公告)号：US20130098001A1

公开(公告)日：2013-04-25

申请号：US13807236

申请日：2010-07-02

Applicant: Chun Tai

Inventor： Chun Tai

IPC: F01N3/021

CPC classification number: F01N3/021 ,  F01N3/0231 ,  F01N3/0253 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/023 ,  F01N2560/06 ,  F01N2610/146 ,  F01N2900/1402 ,  F01N2900/1404 ,  F02D41/024 ,  F02D41/029 ,  F02D41/1446 ,  Y02A50/2325 ,  Y02T10/26 ,  Y02T10/47

Abstract: In a diesel engine and exhaust aftertreatment system, a controller is arranged to control operation of the engine to obtain a first set of exhaust characteristics and to control a fuel injector to inject fuel upstream of a DPF at a first rate of injection until at least one condition is attained, and, after the at least one condition is attained, to control the fuel injector so that a rate of fuel injection is reduced and to contra! operation of the engine to obtain a second set of exhaust characteristics so that regeneration of the DPF occurs. At least one characteristic of the first and second sets of characteristics beina, different. A method for treating, diesel engine exhaust is also disclosed.

Abstract translation: 在柴油发动机和排气后处理系统中，控制器被布置成控制发动机的操作以获得第一组排气特性，并且控制燃料喷射器以第一喷射速率向DPF喷射燃料，直到至少一个 条件得到，并且在达到至少一个条件之后，为了控制燃料喷射器，使得燃料喷射速率降低并且与之相反！ 发动机的操作以获得第二组排气特性，从而发生DPF的再生。 第一和第二组特征的至少一个特征是不同的。 还公开了一种用于处理柴油发动机排气的方法。

公开(公告)号：US07007644B2

公开(公告)日：2006-03-07

申请号：US10726688

申请日：2003-12-04

Applicant: Chun Tai ,  Timothy A. Suder ,  Walter Curtis Jacques ,  Benjamin C. Shade

Inventor： Chun Tai ,  Timothy A. Suder ,  Walter Curtis Jacques ,  Benjamin C. Shade

IPC: F01L9/02

CPC classification number: F01L9/021 ,  F01L1/08 ,  F01L2001/34446 ,  F01L2800/12

Abstract: A valve actuation system and method for use in an internal combustion engine including at least one combustion cylinder having a piston and an engine valve. The valve actuation system includes a hydraulic pump, a high-pressure reservoir, and an electro-hydraulic valve actuator. The hydraulic pump is configured to produce a hydraulic output based on a valve-piston clearance profile of at least one cylinder of the combustion engine. The high-pressure reservoir is coupled with the hydraulic pump. The electro-hydraulic valve actuator is coupled with the high-pressure reservoir via a first control valve and configured to actuate at least one engine valve of the combustion engine according to an output of the hydraulic pump.

Abstract translation: 一种用于内燃机的气门致动系统和方法，所述内燃机包括至少一个具有活塞和发动机气门的燃烧气缸。 阀致动系统包括液压泵，高压储存器和电动液压阀致动器。 液压泵构造成基于内燃机的至少一个气缸的阀 - 活塞间隙轮廓产生液压输出。 高压储罐与液压泵相连。 电动液压阀致动器经由第一控制阀与高压储存器联接，并且构造成根据液压泵的输出致动内燃机的至少一个发动机阀。

公开(公告)号：US06848413B1

公开(公告)日：2005-02-01

申请号：US10726684

申请日：2003-12-04

Applicant: Timothy A. Suder ,  Steven Stuart Trevitz ,  Benjamin C. Shade ,  Chun Tai

Inventor： Timothy A. Suder ,  Steven Stuart Trevitz ,  Benjamin C. Shade ,  Chun Tai

IPC: F01L1/44 ,  F02B1/12 ,  F02B19/00 ,  F02D41/30 ,  G02D19/18

CPC classification number: F01L1/44 ,  F01L1/08 ,  F01L9/02 ,  F01L9/04 ,  F02B1/12 ,  F02B19/00 ,  F02D41/3041 ,  Y02T10/125

Abstract: An internal combustion cylinder assembly includes a cylinder having a combustion chamber and a piston. An intake valve provides a working fluid to the combustion chamber while the piston moves from a top dead center position to a bottom dead center position. A pre-combustion chamber is connected communicably to the combustion chamber via a Suder valve and conveys a portion of the working fluid to the pre-combustion chamber while the Suder valve is substantially open. The Suder valve may open substantially simultaneously with the intake valve, remain substantially open while the piston moves from the top dead center position to the bottom dead center position during an intake stroke, and close substantially while the piston is returning to the top dead center position during a compression stroke.

Abstract translation: 内燃缸组件包括具有燃烧室和活塞的气缸。 当活塞从上止点位置移动到下死点位置时，进气阀向燃烧室提供工作流体。 预燃烧室经由Suder阀可通信地连接到燃烧室，并且在Suder阀基本上打开的同时将一部分工作流体输送到预燃烧室。 当阀门进气行程过程中活塞从上死点位置移动到下止点位置时，阀门基本上与进气阀同时打开，保持基本上打开，而当活塞返回到上止点位置时， 在压缩冲程期间。

公开(公告)号：US20140227156A1

公开(公告)日：2014-08-14

申请号：US14345965

申请日：2011-10-06

Applicant: John C. Gibble ,  Chun Tai ,  Jeffrey A Huber

Inventor： John C. Gibble ,  Chun Tai ,  Jeffrey A Huber

IPC: B01D53/94 ,  F01N3/24

CPC classification number: B01D53/94 ,  B01D53/944 ,  B01D2255/9032 ,  B01D2258/012 ,  B01J35/04 ,  B01J37/038 ,  F01N3/103 ,  F01N3/24 ,  F01N2510/0682 ,  Y10T428/24273 ,  Y10T428/24298 ,  Y10T428/24331

Abstract: A diesel oxidation catalyst includes an inlet side, an outlet side, and at least one channel extending from the inlet side to the outlet side, the channel including a first, non-catalyzed portion extending from the inlet side to a second, catalyzed portion. A method of treating engine exhaust gas is also provided.

Abstract translation: 柴油氧化催化剂包括入口侧，出口侧和从入口侧到出口侧延伸的至少一个通道，所述通道包括从入口侧延伸到第二催化部分的第一非催化部分。 还提供了一种处理发动机废气的方法。

公开(公告)号：US20130096800A1

公开(公告)日：2013-04-18

申请号：US13434941

申请日：2012-03-30

Applicant: Chun Tai

Inventor： Chun Tai

IPC: B60W20/00 ,  B60W10/06

CPC classification number: F01L1/34 ,  B60K6/12 ,  B60L2240/441 ,  B60L2240/443 ,  B60T1/10 ,  B60W10/04 ,  B60W10/06 ,  B60W20/00 ,  B60W20/40 ,  B60W30/192 ,  B60W2510/0638 ,  B60W2510/0657 ,  B60W2550/12 ,  B60Y2400/435 ,  F02B21/00 ,  F02B29/00 ,  F02B29/0418 ,  F02D13/04 ,  F02D41/0007 ,  F02D41/0087 ,  F02D2041/001 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/146 ,  Y02T10/6208

Abstract: A hybrid internal combustion engine and air motor system is provided and includes at least one chamber having a drivable member and at least one intake valve and at least one exhaust valve, and a reservoir connected to the chamber through at least one of the intake valve and the exhaust valve. The system further comprises a computer configured to calculate air compressor efficiency during an air compressor mode of operation and select an intake and exhaust valve opening and closing timing sequence for maximizing air compressor efficiency and/or a computer configured to calculate air motor efficiency during an air motor mode of operation and select an intake and exhaust valve opening and closing timing sequence for maximizing air motor efficiency.

Abstract translation: 提供混合内燃机和空气马达系统，并且包括具有可驱动构件和至少一个进气门和至少一个排气阀的至少一个室，以及通过进气门和至少一个排气阀连接到室的储存器 排气阀。 该系统还包括计算机，该计算机被配置为在空气压缩机操作模式期间计算空气压缩机效率，并且选择用于使空气压缩机效率最大化的进气和排气门打开和关闭时序，和/或构造成在空气中计算空气马达效率的计算机 电动机运行模式，并选择进气和排气阀开关定时顺序，以最大限度地提高气动马达效率。

公开(公告)号：US20100089041A1

公开(公告)日：2010-04-15

申请号：US12597886

申请日：2007-05-01

Applicant: Chun Tai ,  Kenth I. Svensson

Inventor： Chun Tai ,  Kenth I. Svensson

IPC: F01N9/00 ,  F01N3/023

CPC classification number: F01N9/002 ,  F01N3/027 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2900/1606 ,  F02D41/029 ,  F02D2041/1417 ,  F02D2200/0812 ,  Y02T10/47

Abstract: A method and apparatus for maintaining a diesel particulate filter (DPF) is provided. A pressure drop across the DPF is measured and an initial estimate of soot loading in the DPF is provided to a recursive filter. Using the recursive filter, the initial estimate of soot loading is updated in view of the measured pressure drop to provide an updated estimate of soot loading in the DPF. Active regeneration of the DPF is triggered when an earliest one of at least one triggering condition occurs, the updated estimate of soot loading reaching a predetermined value being one of the at least one triggering condition.

Abstract translation: 提供了一种用于维持柴油机微粒过滤器（DPF）的方法和装置。 测量DPF上的压降，并将DPF中的烟灰负载的初始估计值提供给递归滤波器。 使用递归滤波器，根据测量的压降来更新烟灰负载的初始估计，以提供DPF中烟灰负荷的更新估计。 当发生至少一个触发条件中的最早的触发条件时触发DPF的主动再生，烟炱负载的更新估计达到预定值，是至少一个触发条件之一。

公开(公告)号：US20100086414A1

公开(公告)日：2010-04-08

申请号：US12522587

申请日：2007-01-18

Applicant: Chun Tai

Inventor： Chun Tai

IPC: F04B49/00

CPC classification number: F01L1/34 ,  B60K6/12 ,  B60L2240/441 ,  B60L2240/443 ,  B60T1/10 ,  B60W10/04 ,  B60W10/06 ,  B60W20/00 ,  B60W20/40 ,  B60W30/192 ,  B60W2510/0638 ,  B60W2510/0657 ,  B60W2550/12 ,  B60Y2400/435 ,  F02B21/00 ,  F02B29/00 ,  F02B29/0418 ,  F02D13/04 ,  F02D41/0007 ,  F02D41/0087 ,  F02D2041/001 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/146 ,  Y02T10/6208

Abstract: A hybrid internal combustion engine and air motor system is provided and includes at least one chamber having a drivable member and at least one intake valve and at least one exhaust valve, and a reservoir connected to the chamber through at least one of the intake valve and the exhaust valve. The system further comprises a computer configured to calculate air compressor efficiency during an air compressor mode of operation and select an intake and exhaust valve opening and closing timing sequence for maximizing air compressor efficiency and/or a computer configured to calculate air motor efficiency during an air motor mode of operation and select an intake and exhaust valve opening and closing timing sequence for maximizing air motor efficiency.

Abstract translation: 提供混合内燃机和空气马达系统，并且包括具有可驱动构件和至少一个进气门和至少一个排气阀的至少一个室，以及通过进气门和至少一个排气阀连接到室的储存器 排气阀。 该系统还包括计算机，该计算机被配置为在空气压缩机操作模式期间计算空气压缩机效率，并且选择用于使空气压缩机效率最大化的进气和排气门打开和关闭时序，和/或构造成在空气中计算空气马达效率的计算机 电动机运行模式，并选择进气和排气阀开关定时顺序，以最大限度地提高气动马达效率。

公开(公告)号：US10851692B2

公开(公告)日：2020-12-01

申请号：US16476271

申请日：2017-01-24

Applicant: VOLVO TRUCK CORPORATION ,  Qunlong Dong ,  Chun Tai

Inventor： Qunlong Dong ,  Chun Tai

IPC: F01N11/00 ,  F01N3/021 ,  F01N3/10 ,  F01N3/20

Abstract: A method and engine arrangement are provided for monitoring components in an exhaust aftertreatment system (EATS) including a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and a selective catalytic reduction catalyst (SCR). A first O2 level is measured at a first location between the DOC and the DPF, a second O2 level is measured at a second location downstream of the SCR, a first NOx level is measured at, the first location, a second NOx level is measured at the second location, SCR efficiency is calculated based on the first and second NOx levels, and whether the DOC, the DPP. and the SCR are functioning property is determined based on whether the first O2 level is within a first O:2 target, whether the second O2 level is within a second O2 target, and whether SCR efficiency is within an SCR efficiency target.

公开(公告)号：US08991154B2

公开(公告)日：2015-03-31

申请号：US12834126

申请日：2010-07-12

Applicant: Chun Tai ,  Timothy Booher ,  Heath Morris

Inventor： Chun Tai ,  Timothy Booher ,  Heath Morris

IPC: F01N3/00 ,  F01N3/20

CPC classification number: F01N3/208 ,  F01N2900/1621 ,  Y02A50/2325 ,  Y02T10/24

Abstract: Methods and systems for controlling reductant levels in an SCR catalyst are provided. In one aspect, reductant levels are adjusted in response to a ratio of change of NOx conversion efficiency to a change of reductant level. In another aspect, reductant injection levels are periodically adjusted to see if NOx conversion efficiency is better or worse at the adjusted levels.

Abstract translation: 提供了用于控制SCR催化剂中还原剂水平的方法和系统。 在一个方面，还原剂水平是根据NOx转化效率的变化与还原剂水平的变化的比率而调节的。 另一方面，周期性地调节还原剂注入水平，以观察NOx转化效率在调节水平下是好还是差。