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1. 发明授权

US06769415B2 Evaporative control system 失效
标题翻译：蒸发控制系统
公开(公告)号：US06769415B2
公开(公告)日：2004-08-03
申请号：US10151430
申请日：2002-05-20
申请人： Sam Raghuma Reddy , R. Vance Mc Cabe, Jr.
发明人： Sam Raghuma Reddy , R. Vance Mc Cabe, Jr.
IPC分类号： F02M3302
CPC分类号： F02M25/0854 , F02M25/0872 , F02M2025/0845
摘要： An evaporative control system for conventional or hybrid vehicles includes a fuel tank for storing a volatile fuel and an engine having an air induction system. A primary canister contains a first volume of a first adsorbent material, a vapor inlet coupled to the fuel tank, a purge outlet coupled to the air induction system, and a vent/air inlet. A secondary canister is coupled to the vent/air inlet and contains a second volume of a second adsorbent material that is different than the first adsorbent material. The first and second adsorbent materials adsorb fuel vapors when the engine is not running to reduce breakthrough and desorb fuel vapors when the engine is running. The second adsorbent material adsorbs butanes and pentanes at low concentrations. The second adsorbent material includes activated carbon derived from a coconut shell and a heater.
摘要翻译：用于常规或混合动力车辆的蒸发控制系统包括用于存储挥发性燃料的燃料箱和具有空气感应系统的发动机。初级罐包含第一体积的第一吸附剂材料，连接到燃料箱的蒸气入口，与空气感应系统相连的净化出口和通风/空气入口。第二罐连接到排气/空气入口并且包含与第一吸附剂材料不同的第二体积的第二吸附剂材料。当发动机不运行时，第一和第二吸附剂材料吸收燃料蒸气以在发动机运行时减少突破和解吸燃料蒸汽。第二种吸附材料以低浓度吸附丁烷和戊烷。第二吸附剂材料包括衍生自椰子壳和加热器的活性炭。

2. 发明授权

US06279548B1 Evaporative emission control canister system for reducing breakthrough emissions 失效
标题翻译：用于减少突破性排放的蒸发排放控制罐系统
公开(公告)号：US06279548B1
公开(公告)日：2001-08-28
申请号：US09459101
申请日：1999-12-13
申请人： Sam Raghuma Reddy
发明人： Sam Raghuma Reddy
IPC分类号： F02M3304
CPC分类号： B01D53/0407 , B01D53/02 , B01D2253/102 , B01D2257/7022 , B01D2259/4516 , B60K15/03504 , B60K2015/03514 , F02M25/0854 , F02M25/089
摘要： The effectiveness against vapor breakthrough of an adsorbent material (e.g., activated carbon granules) containing canister in an evaporative fuel emission control system is greatly increased by employing a relatively small secondary volume of adsorbent downstream of the vapor vent of the primary adsorbent volume and heating the secondary volume just prior to commencing the flow of purge air back through the two adsorbent volumes to remove adsorbed fuel and carry the purged fuel to the induction system of an associated engine. The secondary volume is heated to a temperature enabling complete purging of hydrocarbons from it and, thus, to greatly increase the capacity of that volume to prevent fuel vapor breakthrough during the subsequent engine-off fuel vapor storage cycle. The secondary volume may be contained in a common canister with the primary volume or in a secondary canister.
摘要翻译：通过在初级吸附剂体积的蒸气排放口的下游采用相对较小的第二体积的吸附剂，在蒸发燃料排放控制系统中的含有吸附剂材料（例如活性炭颗粒）的罐的蒸汽穿透效率大大增加，并加热在开始清洗空气的流动通过两个吸附剂体积之前的二次体积以除去吸附的燃料并将清除的燃料运送到相关联的发动机的感应系统。将二次体积加热到能够从其中完全清除烃的温度，从而大大增加该体积的容量，以防止在随后的发动机关闭燃料蒸气存储循环期间燃料蒸汽穿透。二次容积可以包含在具有主体积的常用罐中或在二次罐中。

3. 发明授权

US06769418B1 Engine fuel system with vapor generation for engine cold starting 失效
标题翻译：用于发动机冷起动的发动机燃料系统
公开(公告)号：US06769418B1
公开(公告)日：2004-08-03
申请号：US10377300
申请日：2003-02-28
申请人： Sam Raghuma Reddy
发明人： Sam Raghuma Reddy
IPC分类号： F02M3304
CPC分类号： F02M31/12 , F02D41/0035 , F02D41/064 , F02M25/0809 , F02M25/0854 , F02M25/089 , F02N99/008 , Y02T10/126
摘要： An engine fuel system includes liquid fuel delivery for normal engine operation and fuel vapor generation for use in cold starting on fuel vapor alone. A fuel vapor generator, preferably in a vehicle fuel tank, includes a fuel vapor collector connected in a return line between a pressure regulator and an in-tank fuel pump. A charging portion includes a pump for conducting fuel vapor from the collector to the cold start canister and a return line to provide circulation of the vapor into the canister. A vapor delivery portion includes a delivery line between the cold start canister and an air inlet of an associated engine. An air inlet line delivers air to the canister during cold starting. A subsystem is formed by the fuel vapor generator connected in a circuit with the in-tank fuel pump and the pressure regulator return fuel line.
摘要翻译：发动机燃料系统包括用于正常发动机运行的液体燃料输送和仅在燃料蒸汽上冷启动的燃料蒸气产生。优选地在车辆燃料箱中的燃料蒸汽发生器包括连接在压力调节器和内部燃料泵之间的返回管线中的燃料蒸汽收集器。充电部分包括用于将燃料蒸气从集电器传导到冷启动罐的泵和用于提供蒸汽进入罐的回流管线。蒸汽输送部分包括冷启动罐和相关发动机的空气入口之间的输送管线。空气入口管路在冷启动期间将空气输送到罐。一个子系统由燃油蒸气发生器形成，该燃料蒸气发生器与一个内部燃料泵和压力调节器返回燃油管路连接在一起。

4. 发明授权

US06321727B1 Leak detection for a vapor handling system 有权
标题翻译：蒸气处理系统的泄漏检测
公开(公告)号：US06321727B1
公开(公告)日：2001-11-27
申请号：US09492400
申请日：2000-01-27
申请人： Sam Raghuma Reddy , Gregory Earl Rich , Gregory Edward Labus , Timothy E. Mc Carthy
发明人： Sam Raghuma Reddy , Gregory Earl Rich , Gregory Edward Labus , Timothy E. Mc Carthy
IPC分类号： F02M3302
CPC分类号： F02M25/0809
摘要： The engine or powertrain control module of a vehicle remains electrically powered after the engine is stopped and is used to assess whether there is a leak in the evaporative emissions control system. Fuel tank temperature and pressure data, as well as fuel level data, is analyzed over a brief period of time by module and, if ambient conditions are suitable, the vent on the fuel adsorption canister is closed by signal from the module. The system is thus sealed and the module then analyzes the system pressure changes over a second brief period as the fuel cools by heat loss to detect the vacuum that will occur if the system has no leak.
摘要翻译：发动机停止后，车辆的发动机或动力总成控制模块保持电力供电，并用于评估蒸发排放控制系统是否有泄漏。燃油箱温度和压力数据以及燃油液位数据通过模块在短时间内进行分析，如果环境条件合适，燃料吸附罐上的排气口将被来自模块的信号关闭。因此，该系统被密封，并且随着燃料通过热损失而冷却，模块将在第二短时间内分析系统压力变化，以检测如果系统没有泄漏将发生的真空。

5. 发明授权

US6098601A Fuel vapor storage and recovery apparatus and method 失效
标题翻译：燃油蒸汽储存和回收装置及方法
公开(公告)号：US6098601A
公开(公告)日：2000-08-08
申请号：US197758
申请日：1998-11-23
申请人： Sam Raghuma Reddy
发明人： Sam Raghuma Reddy
IPC分类号： F02D35/00 , F02M25/08 , F02N370/04
CPC分类号： F02M25/08 , F02D35/00 , F02M2025/0881 , Y02T10/16
摘要： A fuel vapor storage and recovery apparatus including a fuel vapor storage canister having an atmospheric vent port, a control valve for opening and closing the atmospheric vent port, a fuel vapor adsorbent material in the vapor storage canister, a vapor/purge conduit between the vapor storage canister and a fuel tank, and a heater operative to heat the vapor adsorbent material. With the atmospheric vent port open, a fuel vapor/air mixture is expelled from the fuel tank into the vapor storage canister. A fuel vapor fraction of the fuel vapor/air mixture adsorbs in the pores of the adsorbent material while an air fraction of the mixture escapes through the atmospheric vent port. When the control valve closes the atmospheric vent port, the heater heats the body of adsorbent material to a purge temperature above an ambient temperature in the fuel tank. At the purge temperature, the adsorbed fuel desorbs and fills the storage canister with large volume of hot gaseous vapor. The resulting increased pressure in the vapor storage canister expels the hot vapor through the vapor/purge conduit back into the fuel tank where it condenses at the lower ambient temperature therein.
摘要翻译：一种燃料蒸汽储存和回收装置，包括具有大气排放口的燃料蒸汽储存罐，用于打开和关闭大气排放口的控制阀，蒸气储存罐中的燃料蒸气吸附剂材料，蒸汽/ 储存罐和燃料箱，以及用于加热蒸汽吸附剂材料的加热器。随着大气排放口打开，燃料蒸气/空气混合物从燃料箱排出到蒸气储存罐中。燃料蒸汽/空气混合物的燃料蒸气分数吸附在吸附材料的孔中，同时混合物的空气部分通过大气排放口逸出。当控制阀关闭大气排气口时，加热器将吸附材料的主体加热到高于燃料箱周围温度的清洗温度。在吹扫温度下，吸附的燃料解吸并填充具有大体积热气态蒸气的储存罐。蒸汽储存罐中产生的增加的压力将热蒸汽通过蒸气/净化导管排出回到燃料箱中，在那里它在其中较低的环境温度下冷凝。

6. 发明授权

US06003498A Canister purge control strategy 失效
标题翻译：罐清洗控制策略
公开(公告)号：US06003498A
公开(公告)日：1999-12-21
申请号：US935978
申请日：1997-09-23
申请人： Sam Raghuma Reddy
发明人： Sam Raghuma Reddy
IPC分类号： F02M25/08 , F02M33/02
CPC分类号： F02M25/08
摘要： A canister purge control strategy in which canister purge operation is adjusted when operating conditions normally identified as leading to purge system deterioration are present, such as high humidity operating conditions and operating conditions in which the fuel vapor canister is substantially fully purged. High humidity conditions, as are present during rainy conditions or inside a vehicle car wash, are detected by monitoring hardware normally available on the vehicle, such as a wiper switch state and a transmission gear state. Canister purging is adjusted or deactivated as a function of wiper switch state and transmission gear state to prevent moisture from entering the fuel vapor canister and reducing the capacity of the fuel adsorbing material. A substantially fully purged fuel vapor canister is detected by estimating a level of fuel vapor contained in the canister as a function of a change in injector pulse width under closed-loop control before and after canister purge is enabled. Canister purging is then adjusted or deactivated as a function of the estimated level of fuel vapor to prevent unnecessary purge system component wear and extend purge system component life.
摘要翻译：一种罐吹扫控制策略，其中存在通常识别为导致清洗系统劣化的操作条件下的罐吹扫操作，例如高湿度操作条件和燃料蒸气罐基本上完全清除的操作条件。通过监视车辆上通常可获得的硬件（例如刮水器开关状态和变速档状态）来检测潮湿条件下或室内洗车中存在的高湿度条件。根据刮水器开关状态和传动齿轮状态调节或停用罐式清洗，以防止水分进入燃料蒸汽罐并降低燃料吸附材料的容量。通过估计罐内所包含的燃料蒸汽的水平作为在闭环控制下的喷射器脉冲宽度的变化的功能来检测基本上完全清除的燃料蒸气罐。然后根据估计的燃料蒸汽水平调节或停用罐式清洗，以防止不必要的清洗系统部件磨损并延长清洗系统部件的使用寿命。

7. 发明授权

US5884610A Fuel reid vapor pressure estimation 失效
标题翻译：燃料油蒸气压估计
公开(公告)号：US5884610A
公开(公告)日：1999-03-23
申请号：US948501
申请日：1997-10-10
申请人： Sam Raghuma Reddy
发明人： Sam Raghuma Reddy
IPC分类号： F02D41/00 , F02M33/04
CPC分类号： F02D41/0045 , F02D2200/0414 , F02D2200/0606 , F02D41/0042
摘要： Automotive internal combustion engine control and diagnostics responsive to an up-to-date on-board estimate of fuel reid vapor pressure (RVP). An on-board fuel vapor recovery system traps fuel vapors released from a fueling system and is controlled to release the vapors to the engine for consumption therein, along with an injected fuel charge under closed-loop engine air/fuel ratio control. The change in the injected fuel charge required to maintain, under closed-loop control conditions, a target air/fuel ratio in the presence and in the absence of the released fuel vapors is applied along with fuel temperature information to estimate RVP, and the RVP estimate is applied under coldstart operating conditions to adjust engine fueling to account for corresponding changes in the vaporization characteristic of the fuel and is applied, when determined to be relatively high, to indicate potential false positives in fuel vapor recovery system diagnostics.
摘要翻译：汽车内燃机控制和诊断响应于燃料内部蒸气压（RVP）的最新车载估计。车载燃料蒸汽回收系统捕获从燃料供给系统释放的燃料蒸汽，并被控制以将蒸汽释放到发动机中以在其中消耗，同时在闭环发动机空气/燃料比控制下喷射燃料。在闭环控制条件下，在存在和不存在释放的燃料蒸气的情况下维持目标空气/燃料比所需的喷射燃料电荷的变化与燃料温度信息一起被应用以估计RVP，并且RVP 估计在冷启动操作条件下应用以调节发动机燃料供应以解释燃料的蒸发特性的相应变化，并且当被确定为相对较高时被应用以指示燃料蒸汽回收系统诊断中的潜在的假阳性。

8. 发明授权

US06499476B1 Vapor pressure determination using galvanic oxygen meter 失效
标题翻译：蒸汽压力测定使用电流表
公开(公告)号：US06499476B1
公开(公告)日：2002-12-31
申请号：US09709882
申请日：2000-11-13
申请人： Sam Raghuma Reddy
发明人： Sam Raghuma Reddy
IPC分类号： F02D4100
CPC分类号： F02D41/0045 , F02D41/0042 , F02D2200/0604 , G01N7/14 , G01N27/404
摘要： A method and apparatus for galvanically measuring vapor pressure of a volatile liquid is described. Vapor pressure of the volatile liquid is derived by galvanically detecting the reduction in oxygen partial pressure in air that is caused by evaporation of the volatile liquid into that air. In one example, an automotive engine/fuel EVAP system is described in which fuel vapor pressure exiting an EVAP canister is measured during purging. The measurement is used to compensate the primary fuel supply to better control overall air/fuel ratio to the engine during purging. In another example, a galvanic oxygen meter is used to identify the type of volatile liquid, including the RVP of engine fuel.
摘要翻译：描述了用于电流测量挥发性液体的蒸气压的方法和装置。通过电化学检测由挥发性液体蒸发成空气而引起的空气中氧分压的降低，得到挥发性液体的蒸气压。在一个示例中，描述了汽车发动机/燃料EVAP系统，其中在净化期间测量离开EVAP罐的燃料蒸气压。该测量用于补偿主要燃料供应，以在吹扫期间更好地控制发动机的总体空气/燃料比。在另一个实例中，使用电流计来识别挥发性液体的类型，包括发动机燃料的RVP。

9. 发明授权

US06463889B2 POx cold start vapor system 有权
标题翻译： POx冷启动蒸汽系统
公开(公告)号：US06463889B2
公开(公告)日：2002-10-15
申请号：US09800612
申请日：2001-03-08
申请人： Sam Raghuma Reddy
发明人： Sam Raghuma Reddy
IPC分类号： F02B4310
CPC分类号： F02M33/02 , F02M25/08
摘要： A gasoline vapor storage canister is employed to temporarily store hydrocarbon vapors vented from the gas tank in an automotive vehicle using an engine or fuel cell motive means which is fuelled at least in part from an on-board-the-vehicle, partial oxidation (POx) reactor for converting gasoline to a hydrogen-containing POx fuel. During cold start situations, gasoline vapor is purged from the storage canister to supply a stream of combustible fuel/air mixture to the POx reactor for ignition and heat up of the catalytic reactor to its operating temperature.
摘要翻译：使用汽油蒸气存储罐来临时储存从气罐中排出的碳氢化合物蒸汽，其使用发动机或燃料电池运动装置，其至少部分地从车载部分氧化（POx ）反应器，用于将汽油转化为含氢POx燃料。在冷起动情况下，从储存罐中清除汽油蒸汽，向POx反应器供应可燃燃料/空气混合物流，以将催化反应器点燃并加热至其工作温度。

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