公开(公告)号：WO1997023712A1

公开(公告)日：1997-07-03

申请号：PCT/US1996019517

申请日：1996-12-10

Applicant: CORNWELL, Gary, R.

IPC: F01N03/00

CPC classification number: F02B27/06 ,  F01N1/165 ,  F01N1/166 ,  F01N2290/10 ,  Y02T10/146

Abstract: Expansion chambers for two-cycle engines (22) include a moveable closure piston (44) which selectively increases the flow cross-sectional area geometrically upon increasing back pressure. The improved expansion chamber (20) thus results in better regulation of the back pressure in the two-cycle engine (22). Several expansion chamber embodiments are disclosed.

Abstract translation: 用于双循环发动机（22）的膨胀室包括可移动的关闭活塞（44），其在增加背压时选择性地增加流动横截面面积几何形状。 因此，改进的膨胀室（20）可以更好地调节双冲程发动机（22）中的背压。 公开了几个膨胀室实施例。

公开(公告)号：WO1998038415A1

公开(公告)日：1998-09-03

申请号：PCT/US1997022634

申请日：1997-12-04

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  BUSH, Kevin, J. ,  CHURCH, Bruce, A. ,  FRANKOWSKI, David

IPC: F01N03/00

CPC classification number: F01N11/00 ,  F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  Y02T10/47

Abstract: A method for monitoring the performance of a catalytic converter (34) computes the oxygen storage capacity and desorption capacity of a catalyst within the catalytic converter (34). An engine control unit (10) receives mass flow rate information of air from a mass air flow rate sensor (12) and an injector driver (24), and receives electrical signals from an upstream exhaust gas sensor (28) and a downstream exhaust gas sensor (30). The engine control unit (10) calculates normalized air fuel ratios for the exhaust gas entering and leaving the catalytic converter (34) and performs numerical integration to determine the oxygen storage capacity and oxygen desorption capacity of the catalyst in the catalytic converter (34). The calculated oxygen storage and desorption capacities of the catalyst are compared with threshold values to determine the performance of the catalytic converter (34).

Abstract translation: 用于监测催化转化器（34）的性能的方法计算催化转化器（34）内的催化剂的储氧能力和解吸能力。 发动机控制单元（10）从质量空气流量传感器（12）和喷射器驱动器（24）接收空气的质量流量信息，并且从上游废气传感器（28）和下游排气 传感器（30）。 发动机控制单元（10）计算进入和离开催化转化器（34）的废气的归一化空燃比，并执行数值积分，以确定催化转化器（34）中的催化剂的储氧能力和氧解吸能力。 将催化剂的计算氧气存储和解吸能力与阈值进行比较以确定催化转化器（34）的性能。

公开(公告)号：WO1994028291A1

公开(公告)日：1994-12-08

申请号：PCT/SE1994000481

申请日：1994-05-24

Applicant: BURKE, Jeff ,  SVENSSON, Christer ,  NYBERG, Leif ,  NYBERG, Peter ,  ROBERTSSON, Bengt-Olov

Inventor： BURKE, Jeff ,  SVENSSON, Christer

IPC: F01N03/00

CPC classification number: F02M25/10 ,  F01N2430/06 ,  F02D2200/0606 ,  F23L2900/07004 ,  Y02E20/344 ,  Y02T10/121

Abstract: The object of the present invention is a method and a device for improving combustion in combustion processes and to achieve cleaner emissions. The invention is primarily aimed at introducing an oxidizer in gaseous form to metal-containing surfaces or surfaces onto which oxidizers can deposit in the combustion area or its proximity, so that a direct convergence with the fuel feed and its admixture with air is obtained. Via an engine feedback control system is effected the regulation of the flow supply, on the one hand the gaseous flow itself and on the other the flow speed and concentration according to the engine load, motor speed, temperature, fuel consumption and emitting gaseous emissions.

Abstract translation: 本发明的目的是改进燃烧过程中的燃烧并实现更清洁的排放的方法和装置。 本发明的主要目的是将一种气态氧化剂引入含金属的表面或表面上，氧化剂可以在其上沉积在燃烧区域或其附近，从而获得与燃料进料及其与空气的混合物的直接收敛。 通过发动机反馈控制系统实现流量供应的调节，一方面是气体流量本身，另一方面根据发动机负载，电动机速度，温度，燃料消耗和排放气体排放物的流速和浓度进行调节。

公开(公告)号：WO1994013936A1

公开(公告)日：1994-06-23

申请号：PCT/DK1993000385

申请日：1993-11-29

Applicant: MAN B&W DIESEL A/S

Inventor： MAN B&W DIESEL A/S ,  KNUDSEN, Thomas, Synnestvedt

IPC: F01N03/00

CPC classification number: F02B25/28 ,  F01N3/10 ,  F01N3/2053 ,  F01N3/24 ,  F01N3/28 ,  F01N13/011 ,  F01N13/107

Abstract: In a V-engine a reactor (24; 24') for reducing the content of undesired compounds in the exhaust gas, such as NOx, is disposed between the two rows of cylinders (4). With this positioning the reactor does not occupy space in the engine room around the engine and at the same time the reactor is kept hot by the radiation and convection heat generated by the engine when the exhaust gas is not flown through the reactor. The reactor (24') may be integral with the exhaust gas receiver (18') of the engine, preferably so that the internal cavity of the receiver is separated from the reactor by means of a partition wall (28'), thereby making it possible to pass only exhaust gas through the reactor when there is a need for purification of the gas.

Abstract translation: 在V型发动机中，用于减少排气中不想要的化合物（如NOx）的反应器（24; 24'）设置在两排气缸（4）之间。 通过这种定位，反应器不会在发动机周围的发动机室中占据空间，同时当排气不通过反应器时，反应器被发动机产生的辐射和对流热量保持热。 反应器（24'）可以与发动机的排气接收器（18'）成一体，优选地使得接收器的内部腔通过分隔壁（28'）与反应器分离，从而使其 当需要净化气体时，可能仅通过废气通过反应器。

公开(公告)号：WO1998038416A1

公开(公告)日：1998-09-03

申请号：PCT/US1997023179

申请日：1997-12-04

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  BUSH, Kevin, J. ,  CHURCH, Bruce, A. ,  FRANKOWSKI, David ,  SCHUMACHER, Darren, A. ,  BADALAMENT, Michael

IPC: F01N03/00

CPC classification number: F02D41/0295 ,  F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  F02D41/1441 ,  F02D41/1475 ,  F02D2200/0814 ,  Y02T10/47

Abstract: The catalyst control method of the invention continuously estimates a level of oxygen stored by a catalyst within a catalytic converter. The estimated oxygen stored by the catalyst is compared to a predetermined threshold and positive or negative deviations in the oxygen amount from the threshold is determined. When a positive deviation from the threshold amount is detected, the air/fuel ratio flowing into an engine (16) is decreased. Correspondingly, when a negative deviation is detected, the air/fuel ratio flowing into the engine (16) is increased. The amount of oxygen stored by the catalyst is determined by analyzing signals from a first gas sensor (28) positioned upstream from a catalytic converter (34) and a second gas sensor (30) positioned downstream from the catalytic converter (34). An engine control unit (10) integrates an expression for the mass flow rate of excess oxygen into the catalytic converter (34). Engine control unit (10) applies a change in air/fuel ratio to maintain the oxygen level on the catalyst within the catalytic converter (34) at a desired level.

Abstract translation: 本发明的催化剂控制方法连续地估计催化转化器内的催化剂储存的氧含量。 将由催化剂储存的估计氧气与预定阈值进行比较，并确定氧气量与阈值的正或负偏差。 当检测到与阈值量的正偏差时，流入发动机（16）的空气/燃料比减少。 相应地，当检测到负偏差时，流入发动机（16）的空气/燃料比增加。 通过分析来自位于催化转化器（34）上游的第一气体传感器（28）和位于催化转化器（34）下游的第二气体传感器（30）的信号来确定催化剂存储的氧气的量。 发动机控制单元（10）将过量氧气的质量流量的表达式整合到催化转化器（34）中。 发动机控制单元（10）应用空燃比的变化，以将催化转化器（34）内的催化剂上的氧气水平维持在期望的水平。

公开(公告)号：WO1997024515A1

公开(公告)日：1997-07-10

申请号：PCT/KR1996000007

申请日：1996-01-19

Applicant: HYUNDAI PRECISION & IND. CO., LTD. ,  SEONDO ELECTRIC CO., LTD. ,  PARK, Chan, Ho ,  LEE, Yong, Hee

Inventor： HYUNDAI PRECISION & IND. CO., LTD. ,  SEONDO ELECTRIC CO., LTD.

IPC: F01N03/00

CPC classification number: F01N3/01 ,  B01D53/323 ,  B03C3/38 ,  B03C2201/14 ,  F01N3/00 ,  F01N3/08 ,  F01N3/0892 ,  F01N2230/00 ,  F01N2240/28 ,  F01N2240/38 ,  Y02T10/20

Abstract: A method and an apparatus for cleaning smoke and reducing noises of an internal combustion engine or external combustion engine by using high voltage field. The present invention relates to a method and an apparatus which can clean exhaust gases and reduce noises, wherein it comprises the step of burning up the granular particles with corona discharge after changing particles into plasma state, the step of removing gaseous materials with negative ions, the step of eliminating NOx with ultraviolet rays and the step of reducing noises.

Abstract translation: 一种用于通过使用高电压场来清洁烟雾和减少内燃机或外燃机的噪声的方法和装置。 本发明涉及一种能够清洁废气和减少噪声的方法和装置，其中包括在将颗粒改变成等离子体状态之后，用电晕放电使粒状颗粒燃烧的步骤，用负离子去除气态物质的步骤， 用紫外线消除NOx的步骤和降低噪声的步骤。

公开(公告)号：WO1995027128A1

公开(公告)日：1995-10-12

申请号：PCT/US1995004179

申请日：1995-04-03

Applicant: BROWN, William, Galen, II ,  LOWI, Alvin, Jr. ,  BENZ, Robert, Peter

IPC: F01N03/00

CPC classification number: F02D19/10 ,  B01D53/9445 ,  B01D53/949 ,  B01D53/9495 ,  B01D2258/012 ,  F01N3/22 ,  F01N3/2882 ,  F01N3/2892 ,  F01N3/306 ,  F01N3/32 ,  F01N3/36 ,  F01N5/02 ,  F01N2610/03 ,  F02B3/06 ,  F02B37/18 ,  F02D19/066 ,  F02D41/0007 ,  F02D41/0025 ,  F02D41/062 ,  F02D41/1454 ,  F02D2400/11 ,  F02M26/06 ,  F02M26/15 ,  F02M26/23 ,  F02M26/35 ,  F02M26/39 ,  Y02T10/144 ,  Y02T10/16 ,  Y02T10/20 ,  Y02T10/22 ,  Y02T10/36

Abstract: A diesel engine (3) is equipped with a three-way catalytic thermal oxidizer (21), and a special manifold on the air intake to throttle and mix in air, natural gas, and cooled exhaust, to reduce nitrogen oxides emissions to extremely low levels. A computer (33) controls air flow to maintain stoichiometric fuel air ratio in the catalytic converter. Dual fueling with natural gas (1) in addition to diesel serves to reduce soot and also substitutes as a more economical fuel for the diesel it replaces. The cooled, recirculated exhaust (13) serves to reduce exhaust temperatures, reduce NOx generation, and prevent detonation within the engine. The three-way catalytic oxidizer (21) reduces NOx, CO, HC, and particulate emissions.

Abstract translation: 柴油发动机（3）配备有三元催化热氧化器（21），以及在进气口上设有专门的歧管，以节约和混合空气，天然气和冷却废气，以将氮氧化物排放量降至极低 水平。 计算机（33）控制空气流动以维持催化转化器中的化学计量燃料空气比。 除了柴油之外，天然气（1）的双重加油功能可以减少烟灰，并替代替代柴油作为更经济的燃料。 冷却的再循环排气（13）用于减少排气温度，减少NOx产生并防止发动机内的爆震。 三元催化氧化剂（21）可减少NOx，CO，HC和颗粒物的排放。

公开(公告)号：WO1994003710A1

公开(公告)日：1994-02-17

申请号：PCT/US1993006850

申请日：1993-07-21

Applicant: ERGENICS, INC.

Inventor： ERGENICS, INC. ,  GOLBEN, P., Mark ,  FOX, John, E.

IPC: F01N03/00

CPC classification number: B01D53/9454 ,  F01N3/0205 ,  F01N3/2006 ,  F01N13/011 ,  F01N2240/02 ,  Y02A50/2324 ,  Y02T10/22 ,  Y02T10/26 ,  Y10S420/90

Abstract: A system and method is provided whereby exhaust gases from a cold started internal combustion engine (41) are rapidly brought to catalytic combustion conditions. Specifically, a closed system of a low pressure metal hydride heat exhanger (44) and a high pressure metal hydride heat exchanger (48) is provided which, upon engine ignition, effectuates hydrogen flow from the high pressure alloy exchanger (48) with rapid heating of the low pressure alloy in the low pressure metal hydride heat exchanger (44) due to hydrogen occlusion, and with the further provision that the heated low pressure hydride alloy exchanger (44) is in heat exchange relationship with the cold started engine exhaust gases or the vehicle catalytic converter (23) and provides heat necessary for initiation of catalytic combustion of pollutants in the exhaust gases.

Abstract translation: 提供了一种系统和方法，其中来自冷启动内燃机（41）的废气迅速地进入催化燃烧条件。 具体地说，提供一种低压金属氢化物热交换器（44）和高压金属氢化物热交换器（48）的封闭系统，其在发动机点火时通过快速加热实现来自高压合金交换器（48）的氢气流 的低压金属氢化物热交换器（44）中的低压合金由于吸氢而进一步规定，并且进一步规定加热的低压氢化物合金交换器（44）与冷起动的发动机废气或 车辆催化转化器（23），并且提供引发废气中污染物的催化燃烧所需的热量。

公开(公告)号：WO1991002143A1

公开(公告)日：1991-02-21

申请号：PCT/US1990004253

申请日：1990-07-30

Applicant: MANVILLE CORPORATION

Inventor： MANVILLE CORPORATION ,  BAINBRIDGE, David, William ,  OLBERT, William, Harrison

IPC: F01N03/00

CPC classification number: F16L59/184 ,  F01N13/14 ,  F01N13/141 ,  F01N13/18 ,  F01N13/1811 ,  F01N13/1816 ,  F01N2310/02 ,  F01N2450/00 ,  F01N2450/22 ,  F01N2450/24 ,  F01N2450/28 ,  F01N2470/24 ,  F16L59/153 ,  F16L59/21

Abstract: An insulated exhaust pipe (10) comprising inner and outer spaced corrugated metallic tubes (12, 14) separated by a layer of low density refractory fiber insulation (16) and strips of higher density refractory fibers insulation (18). The pipe (10) is made by adhering the insulation (18) to the inner tube (12) and inserting the insulated inner tube (12) into the outer tube (14) while rotating it so that the corrugations (22) of the outer tube (14) do not damage the insulation (18). Attachment means (134) for connecting a corrugated insulated pipe (154) to an element in the exhaust system means include a conduit (130) having a transverse lug (138) which allows the conduit (130) to be threaded into the pipe (154). The end of the pipe (154) is received in an end cap (142) slidably mounted on the conduit (130). A stop (140) on the conduit (130) limits relative movement of the pipe (154) and conduit (130), permitting the connection between the pipe (154) and conduit to be tightened.

Abstract translation: 一种绝缘排气管（10），包括由一层低密度耐火纤维绝缘层（16）和较高密度耐火纤维绝缘层（18）隔开的内部和外部隔开的波纹状金属管（12,14）。 管（10）通过将绝缘体（18）粘附到内管（12）并将绝缘内管（12）插入外管（14）中，同时使其外露的波纹（22） 管（14）不会损坏绝缘层（18）。 用于将波纹绝缘管道（154）连接到排气系统装置中的元件的附接装置（134）包括具有横向突出部（138）的导管（130），该导管允许导管（130）拧入管道（154） ）。 管道（154）的端部容纳在可滑动地安装在导管（130）上的端盖（142）中。 导管（130）上的止动件（140）限制了管道（154）和管道（130）的相对运动，从而允许管道（154）和管道之间的连接被紧固。