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1.发明授权Shallow piston bowl and injector spray pattern for a gasoline, direct-injection engine 有权用于汽油，直喷发动机的浅活塞碗和喷射器喷雾模式公开(公告)号：US08347853B2
公开(公告)日：2013-01-08
申请号：US13288254
申请日：2011-11-03
申请人： Zheng Xu , Jianwen James Yi , Steven Wooldridge , David Bruce Reiche , Neal James Corey , Stephen George Russ , Steven Paul Penkevich , Claudia Olivia Iyer
发明人： Zheng Xu , Jianwen James Yi , Steven Wooldridge , David Bruce Reiche , Neal James Corey , Stephen George Russ , Steven Paul Penkevich , Claudia Olivia Iyer
CPC分类号： F02B23/104 , F02B2023/103 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02M61/1806 , F02M69/045 , Y02T10/123 , Y02T10/125 , Y10T29/49249
摘要： A method of forming a bowl in a top surface of a piston for an internal combustion engine includes machining the top surface of the piston to form a spherical depression in the top surface wherein the top surface comprises a dome prior to the machining and a center of the bowl is displaced from a center of the piston by at least one-quarter of a diameter of the piston. In one embodiment, the method includes machining recesses in the top surface aligned, respectively, with intake valves, an exhaust valve, and spark plug when installed. Because the bowl is smooth and shallow, the surface area of the combustion chamber is less than with a deeper bowl of complicated shape. Lowering surface area in the combustion chamber leads to improved fuel economy.
摘要翻译： 在用于内燃机的活塞的顶表面中形成碗的方法包括加工活塞的顶表面以在顶表面中形成球形凹陷，其中顶表面包括在加工之前的圆顶和中心 碗从活塞的中心位移至活塞直径的至少四分之一。 在一个实施例中，该方法包括在安装时将分别与进气门，排气阀和火花塞对准的顶表面中的凹槽加工。 由于碗平滑浅，所以燃烧室的表面积比较深的碗形复杂。 降低燃烧室中的表面积导致改进的燃料经济性。
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2.发明申请Shallow Piston Bowl And Injector Spray Pattern For A Gasoline, Direct-Injection Engine 有权用于汽油，直喷式发动机的浅活塞碗和喷射器喷雾模式公开(公告)号：US20120047733A1
公开(公告)日：2012-03-01
申请号：US13288254
申请日：2011-11-03
申请人： Zheng Xu , Jianwen James Yi , Steven Wooldridge , David Bruce Reiche , Neal James Corey , Stephen George Russ , Steven Paul Penkevich , Claudia Olivia Iyer
发明人： Zheng Xu , Jianwen James Yi , Steven Wooldridge , David Bruce Reiche , Neal James Corey , Stephen George Russ , Steven Paul Penkevich , Claudia Olivia Iyer
IPC分类号： B23P15/10
CPC分类号： F02B23/104 , F02B2023/103 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02M61/1806 , F02M69/045 , Y02T10/123 , Y02T10/125 , Y10T29/49249
摘要： A method of forming a bowl in a top surface of a piston for an internal combustion engine includes machining the top surface of the piston to form a spherical depression in the top surface wherein the top surface comprises a dome prior to the machining and a center of the bowl is displaced from a center of the piston by at least one-quarter of a diameter of the piston. In one embodiment, the method includes machining recesses in the top surface aligned, respectively, with intake valves, an exhaust valve, and spark plug when installed. Because the bowl is smooth and shallow, the surface area of the combustion chamber is less than with a deeper bowl of complicated shape. Lowering surface area in the combustion chamber leads to improved fuel economy.
摘要翻译： 在用于内燃机的活塞的顶表面中形成碗的方法包括加工活塞的顶表面以在顶表面中形成球形凹陷，其中顶表面包括在加工之前的圆顶和中心 碗从活塞的中心位移至活塞直径的至少四分之一。 在一个实施例中，该方法包括在安装时将分别与进气门，排气阀和火花塞对准的顶表面中的凹槽加工。 由于碗平滑浅，所以燃烧室的表面积比较深的碗形复杂。 降低燃烧室中的表面积导致改进的燃料经济性。
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3.发明申请Shallow Piston Bowl And Injector Spray Pattern For A Gasoline, Direct-Injection Engine 有权用于汽油，直喷式发动机的浅活塞碗和喷射器喷雾模式公开(公告)号：US20110162621A1
公开(公告)日：2011-07-07
申请号：US12822296
申请日：2010-06-24
申请人： Zheng Xu , Jianwen James Yi , Steven Wooldridge , David Bruce Reiche , Neal James Corey , Stephen George Russ , Steven Paul Penkevich , Claudia Olivia Iyer
发明人： Zheng Xu , Jianwen James Yi , Steven Wooldridge , David Bruce Reiche , Neal James Corey , Stephen George Russ , Steven Paul Penkevich , Claudia Olivia Iyer
CPC分类号： F02B23/104 , F02B2023/103 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02M61/1806 , F02M69/045 , Y02T10/123 , Y02T10/125 , Y10T29/49249
摘要： A combustion system for a direct-injection, spark-ignition engine is disclosed. A side-mounted fuel injector located outboard the intake valves directs multiple fuel jets into a shallow, spherical bowl formed in a domed piston. Both good mixing to facilitate good air utilization with early injection and an ignitable mixture at the spark plug with late injection to facilitate cold start are provided with such a combustion system. Because the bowl is smooth and shallow, the surface area of the combustion chamber is less than with a deeper bowl of complicated shape. Lowering surface area in the combustion chamber leads to improved fuel economy.
摘要翻译： 公开了一种用于直喷式火花点火发动机的燃烧系统。 位于进气阀外侧的侧面安装的燃料喷射器将多个燃料喷射器引导成形成在圆顶活塞中的浅的球形碗。 这种燃烧系统具有良好的混合以促进早期注射时的良好空气利用和具有晚期注射的火花塞的可点燃混合物以促进冷启动。 由于碗平滑浅，所以燃烧室的表面积比较深的碗形复杂。 降低燃烧室中的表面积导致改进的燃料经济性。
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4.发明授权Shallow piston bowl and injector spray pattern for a gasoline, direct-injection engine 有权用于汽油，直喷发动机的浅活塞碗和喷射器喷雾模式公开(公告)号：US08056531B2
公开(公告)日：2011-11-15
申请号：US12822296
申请日：2010-06-24
申请人： Zheng Xu , Jianwen James Yi , Steven Wooldridge , David Bruce Reiche , Neal James Corey , Stephen George Russ , Steven Paul Penkevich , Claudia Olivia Lyer
发明人： Zheng Xu , Jianwen James Yi , Steven Wooldridge , David Bruce Reiche , Neal James Corey , Stephen George Russ , Steven Paul Penkevich , Claudia Olivia Lyer
CPC分类号： F02B23/104 , F02B2023/103 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02M61/1806 , F02M69/045 , Y02T10/123 , Y02T10/125 , Y10T29/49249
摘要： A combustion system for a direct-injection, spark-ignition engine is disclosed. A side-mounted fuel injector located outboard the intake valves directs multiple fuel jets into a shallow, spherical bowl formed in a domed piston. Both good mixing to facilitate good air utilization with early injection and an ignitable mixture at the spark plug with late injection to facilitate cold start are provided with such a combustion system. Because the bowl is smooth and shallow, the surface area of the combustion chamber is less than with a deeper bowl of complicated shape. Lowering surface area in the combustion chamber leads to improved fuel economy.
摘要翻译： 公开了一种用于直喷式火花点火发动机的燃烧系统。 位于进气阀外侧的侧面安装的燃料喷射器将多个燃料喷射器引导成形成在圆顶活塞中的浅的球形碗。 这种燃烧系统具有良好的混合以促进早期注射时的良好空气利用和具有晚期注射的火花塞的可点燃混合物以促进冷启动。 由于碗平滑浅，所以燃烧室的表面积比较深的碗形复杂。 降低燃烧室中的表面积导致改进的燃料经济性。
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5.发明授权公开(公告)号：US07418940B1
公开(公告)日：2008-09-02
申请号：US11847381
申请日：2007-08-30
IPC分类号： F02B17/00
CPC分类号： F02B23/104 , F02B17/005 , Y02T10/125
摘要： A system and method for operating an internal combustion engine include injecting fuel through a plurality of fuel jets of a fuel injector directly into a corresponding cylinder with at least a first plurality jets oriented to primarily support operation in a stratified mode and a second plurality of jets oriented to primarily support operation in a homogeneous mode. The first plurality of jets is oriented to spray fuel generally downward toward the piston bowl and the second plurality of jets is oriented to spray fuel generally across the cylinder toward the exhaust valves. The spray jets reduce or eliminate valve, liner, and piston wetting while providing good mixing in homogeneous mode and good combustion stability for light stratified charge during cold starts to achieve desired targets for feedgas emissions and combustion efficiency.
摘要翻译： 用于操作内燃机的系统和方法包括将燃料通过燃料喷射器的多个燃料喷射器喷射到相应的气缸中，其中至少一个第一多个射流主要以分层模式支撑操作，第二多个射流 面向主要支持均匀模式下的操作。 第一组多个射流被定向成将燃料大致向下喷射到活塞碗，并且第二组喷射被定向成将燃料大体上穿过气缸喷向排气门。 在冷启动期间，喷射喷嘴可以减少或消除阀门，衬套和活塞润湿，同时提供均匀模式下的良好混合和良好的燃烧稳定性，从而达到预期的进料气体排放和燃烧效率目标。
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公开(公告)号：US08176888B2
公开(公告)日：2012-05-15
申请号：US13027104
申请日：2011-02-14
申请人： David Bruce Reiche , Jianwen James Yi , Steven Wooldridge , Foo Chern Ting , Thomas A. McCarthy
发明人： David Bruce Reiche , Jianwen James Yi , Steven Wooldridge , Foo Chern Ting , Thomas A. McCarthy
IPC分类号： F01L13/08
CPC分类号： F02D41/006 , F02D19/084 , F02D41/0025 , F02D41/061 , F02D41/068 , F02D41/401 , F02D2200/021 , F02D2200/0611 , F02N19/06 , Y02T10/36 , Y02T10/47
摘要： A method for improving starting of an engine that may be operated with fuels having varying alcohol concentrations is presented. In one embodiment, the method adjusts a compression ratio of an engine in response to a number of combustion events after an engine stop and a concentration of alcohol in a fuel supplied to the engine. The method may make engine starting more repeatable at lower engine temperatures.
摘要翻译： 提出了一种用于改善可能用具有不同醇浓度的燃料操作的发动机起动的方法。 在一个实施例中，该方法响应于发动机停止之后的燃烧事件的数量和供应到发动机的燃料中的醇的浓度来调节发动机的压缩比。 该方法可以使发动机起动在较低的发动机温度下更可重复。
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公开(公告)号：US20110265764A1
公开(公告)日：2011-11-03
申请号：US13027104
申请日：2011-02-14
申请人： David Bruce Reiche , Jianwen James Yi , Steven Wooldridge , Foo Chern Ting , Thomas A. McCarthy
发明人： David Bruce Reiche , Jianwen James Yi , Steven Wooldridge , Foo Chern Ting , Thomas A. McCarthy
IPC分类号： F02D41/06
CPC分类号： F02D41/006 , F02D19/084 , F02D41/0025 , F02D41/061 , F02D41/068 , F02D41/401 , F02D2200/021 , F02D2200/0611 , F02N19/06 , Y02T10/36 , Y02T10/47
摘要： A method for improving starting of an engine that may be operated with fuels having varying alcohol concentrations is presented. In one embodiment, the method adjusts a compression ratio of an engine in response to a number of combustion events after an engine stop and a concentration of alcohol in a fuel supplied to the engine. The method may make engine starting more repeatable at lower engine temperatures.
摘要翻译： 提出了一种用于改善可能用具有不同醇浓度的燃料操作的发动机起动的方法。 在一个实施例中，该方法响应于发动机停止之后的燃烧事件的数量和供应到发动机的燃料中的醇的浓度来调节发动机的压缩比。 该方法可以使发动机起动在较低的发动机温度下更可重复。
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公开(公告)号：US20130006503A1
公开(公告)日：2013-01-03
申请号：US13612639
申请日：2012-09-12
CPC分类号： F02P5/1506 , F02D2250/28 , F02N11/0822 , Y02T10/46
摘要： A method for improving starting of an engine that may be automatically started is provided. In one example, spark timing of an automatically started engine is in advance of spark timing for an operator requested engine start. The approach may reduce vehicle driveline disturbances.
摘要翻译： 提供了一种用于改善可以自动启动的发动机起动的方法。 在一个示例中，自动启动发动机的火花正时提前为操作者所要求的发动机启动的火花定时。 该方法可以减少车辆传动系扰动。
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公开(公告)号：US08573182B2
公开(公告)日：2013-11-05
申请号：US13612639
申请日：2012-09-12
CPC分类号： F02P5/1506 , F02D2250/28 , F02N11/0822 , Y02T10/46
摘要： A method for improving starting of an engine that may be automatically started is provided. In one example, spark timing of an automatically started engine is in advance of spark timing for an operator requested engine start. The approach may reduce vehicle driveline disturbances.
摘要翻译： 提供了一种用于改善可以自动启动的发动机起动的方法。 在一个示例中，自动启动发动机的火花正时提前为操作者所要求的发动机启动的火花定时。 该方法可以减少车辆传动系扰动。
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公开(公告)号：US08267067B2
公开(公告)日：2012-09-18
申请号：US13042719
申请日：2011-03-08
CPC分类号： F02P5/1506 , F02D2250/28 , F02N11/0822 , Y02T10/46
摘要： A method for improving starting of an engine that may be automatically started is provided. In one example, spark timing of an automatically started engine is in advance of spark timing for an operator requested engine start. The approach may reduce vehicle driveline disturbances.
摘要翻译： 提供了一种用于改善可以自动启动的发动机起动的方法。 在一个示例中，自动启动发动机的火花正时提前为操作者所要求的发动机启动的火花定时。 该方法可以减少车辆传动系扰动。
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