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1. 发明申请

US20110253097A1 Approach for Improved Fuel Vaporization in a Directly Injected Internal Combustion Engine 有权
标题翻译：在直接注入内燃机中改进燃料汽化的方法
公开(公告)号：US20110253097A1
公开(公告)日：2011-10-20
申请号：US13170854
申请日：2011-06-28
申请人： Jianwen James Yi , Claudia Olivia Iyer , FooChern Ting , George Carver Davis
发明人： Jianwen James Yi , Claudia Olivia Iyer , FooChern Ting , George Carver Davis
IPC分类号： F02M43/00
CPC分类号： F02D41/068 , F02B2075/125 , F02D13/0265 , F02D41/401 , F02D41/402 , F02D2041/001 , F02D2041/389 , Y02T10/123 , Y02T10/18 , Y02T10/44
摘要： A system and a method of facilitating fuel vaporization in a directly injected internal combustion engine are provided. As one example, the method comprises: closing an exhaust valve of the cylinder; opening an intake valve after the exhaust valve has closed; moving a piston of the cylinder away from top dead center between the closing of the exhaust valve and the opening of the intake valve to expand the cylinder volume and reduce a pressure within the cylinder to below a pressure of an air intake manifold of the cylinder; and initiating an injection of fuel directly into the cylinder via an in-cylinder injector after the exhaust valve has closed.
摘要翻译：提供了一种促进直接喷射的内燃机中的燃料蒸发的系统和方法。作为一个示例，该方法包括：关闭气缸的排气阀; 排气阀关闭后打开进气阀; 将气缸的活塞从排气阀关闭和进气门的开口之间的上止点移开，以扩大气缸体积，并将气缸内的压力降低到气缸的进气歧管的压力以下; 并且在排气阀关闭之后通过缸内喷射器启动燃料直接喷射到汽缸中。

2. 发明授权

US07992537B2 Approach for improved fuel vaporization in a directly injected internal combustion engine 有权
标题翻译：改进直喷式内燃机燃油蒸发方法
公开(公告)号：US07992537B2
公开(公告)日：2011-08-09
申请号：US11867095
申请日：2007-10-04
申请人： Jianwen James Yi , Claudia Olivia Iyer , FooChern Ting , George Carver Davis
发明人： Jianwen James Yi , Claudia Olivia Iyer , FooChern Ting , George Carver Davis
IPC分类号： F02B17/00 , F02B31/00
CPC分类号： F02D41/068 , F02B2075/125 , F02D13/0265 , F02D41/401 , F02D41/402 , F02D2041/001 , F02D2041/389 , Y02T10/123 , Y02T10/18 , Y02T10/44
摘要： A system and a method of facilitating fuel vaporization in a directly injected internal combustion engine are provided. As one example, vaporization may be improved by coordinating the timing of the directly injected fuel with intake valve opening while also utilizing negative valve overlap between the intake and exhaust valves to generate reduced pressures within the cylinder.
摘要翻译：提供了一种促进直接喷射的内燃机中的燃料蒸发的系统和方法。作为一个示例，可以通过将直接喷射的燃料的定时与进气门打开协调来改善汽化，同时还利用进气门和排气门之间的负阀重叠，以在气缸内产生减压。

3. 发明授权

US08166959B2 Approach for improved fuel vaporization in a directly injected internal combustion engine 有权
标题翻译：改进直喷式内燃机燃油蒸发方法
公开(公告)号：US08166959B2
公开(公告)日：2012-05-01
申请号：US13170854
申请日：2011-06-28
申请人： Jianwen James Yi , Claudia Olivia Iyer , FooChern Ting , George Carver Davis
发明人： Jianwen James Yi , Claudia Olivia Iyer , FooChern Ting , George Carver Davis
IPC分类号： F02B13/10 , F02B13/00
CPC分类号： F02D41/068 , F02B2075/125 , F02D13/0265 , F02D41/401 , F02D41/402 , F02D2041/001 , F02D2041/389 , Y02T10/123 , Y02T10/18 , Y02T10/44
摘要： A system and a method of facilitating fuel vaporization in a directly injected internal combustion engine are provided. As one example, the method comprises: closing an exhaust valve of the cylinder; opening an intake valve after the exhaust valve has closed; moving a piston of the cylinder away from top dead center between the closing of the exhaust valve and the opening of the intake valve to expand the cylinder volume and reduce a pressure within the cylinder to below a pressure of an air intake manifold of the cylinder; and initiating an injection of fuel directly into the cylinder via an in-cylinder injector after the exhaust valve has closed.
摘要翻译：提供了一种促进直接喷射的内燃机中的燃料蒸发的系统和方法。作为一个示例，该方法包括：关闭气缸的排气阀; 排气阀关闭后打开进气阀; 将气缸的活塞从排气阀关闭和进气门的开口之间的上止点移开，以扩大气缸体积，并将气缸内的压力降低到气缸的进气歧管的压力以下; 并且在排气阀关闭之后通过缸内喷射器启动燃料直接喷射到汽缸中。

4. 发明申请

US20090093950A1 Approach for Improved Fuel Vaporization in a Directly Injected Internal Combustion Engine 有权
标题翻译：在直接注入内燃机中改进燃料汽化的方法
公开(公告)号：US20090093950A1
公开(公告)日：2009-04-09
申请号：US11867095
申请日：2007-10-04
申请人： Jianwen James Yi , Claudia Olivia Iyer , FooChern Ting , George Carver Davis
发明人： Jianwen James Yi , Claudia Olivia Iyer , FooChern Ting , George Carver Davis
IPC分类号： F02D41/30
CPC分类号： F02D41/068 , F02B2075/125 , F02D13/0265 , F02D41/401 , F02D41/402 , F02D2041/001 , F02D2041/389 , Y02T10/123 , Y02T10/18 , Y02T10/44
摘要： A system and a method of facilitating fuel vaporization in a directly injected internal combustion engine are provided. As one example, the method comprises: closing an exhaust valve of the cylinder; opening an intake valve after the exhaust valve has closed; moving a piston of the cylinder away from top dead center between the closing of the exhaust valve and the opening of the intake valve to expand the cylinder volume and reduce a pressure within the cylinder to below a pressure of an air intake manifold of the cylinder; and initiating an injection of fuel directly into the cylinder via an in-cylinder injector after the exhaust valve has closed.
摘要翻译：提供了一种促进直接喷射的内燃机中的燃料蒸发的系统和方法。作为一个示例，该方法包括：关闭气缸的排气阀; 排气阀关闭后打开进气阀; 将气缸的活塞从排气阀关闭和进气门的开口之间的上止点移开，以扩大气缸体积，并将气缸内的压力降低到气缸的进气歧管的压力以下; 并且在排气阀关闭之后通过缸内喷射器启动燃料直接喷射到汽缸中。

5. 发明申请

US20120047733A1 Shallow Piston Bowl And Injector Spray Pattern For A Gasoline, Direct-Injection Engine 有权
标题翻译：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。

6. 发明申请

US20110162621A1 Shallow Piston Bowl And Injector Spray Pattern For A Gasoline, Direct-Injection Engine 有权
标题翻译：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
IPC分类号： F02B5/00 , F02F1/42 , F02F3/00 , 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 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。

7. 发明授权

US08347853B2 Shallow piston bowl and injector spray pattern for a gasoline, direct-injection engine 有权
标题翻译：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
IPC分类号： B23P15/10 , F02B5/00 , F02F3/00
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。

8. 发明授权

US06725828B1 Vortex-induced stratification combustion for direct injection spark ignition engines 有权
标题翻译：直接喷射火花点火发动机的涡旋诱导分层燃烧
公开(公告)号：US06725828B1
公开(公告)日：2004-04-27
申请号：US10462282
申请日：2003-06-17
申请人： Zhiyu Han , Claudia Olivia Iyer , Ruben Humberto Munoz Pascua , Brad Alan VanDerWege , Jianwen James Yi
发明人： Zhiyu Han , Claudia Olivia Iyer , Ruben Humberto Munoz Pascua , Brad Alan VanDerWege , Jianwen James Yi
IPC分类号： F02B1700
CPC分类号： F02B17/005 , F02B23/101 , F02B31/085 , F02B2023/106 , F02B2023/108 , F02B2075/125 , F02F1/4214 , F02M51/06 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要： A system and method for controlling combustion in a direct injection spark ignition internal combustion engine inject fuel directly into a combustion chamber in a wide-angle, hollow-cone spray to form a vortex that draws fuel vapor out of the spray to form a combustible fuel-air mixture at a spark location outside the hollow-cone spray. Various piston combustion bowl configurations further enhance the stability of the vortex and reduce fuel impingement on the piston surface while providing a desired compression ratio. Cylinder airflow is controlled to produce substantial swirl flow resulting in a more compact fuel cloud around the spark location to reduce over-mixing and improve robustness to cycle-to-cycle variation in the mixing process.
摘要翻译：用于控制直接喷射火花点火内燃机中的燃烧的系统和方法将燃料直接喷射到广角中空锥形喷雾器中的燃烧室中，以形成将燃料蒸气从喷雾中吸出以形成可燃燃料在中空锥体喷雾之外的火花位置处的空气混合物。各种活塞燃烧碗形结构进一步增强了涡流的稳定性并减少了活塞表面上的燃料冲击，同时提供了所需的压缩比。控制气缸气流以产生大量的旋流，从而在火花位置周围产生更紧凑的燃料云，以减少过混合并提高混合过程中循环到循环变化的鲁棒性。

9. 发明授权

US07418940B1 Fuel injector spray pattern for direct injection spark ignition engines 有权
标题翻译：燃油喷射器喷射模式用于直接喷射火花点火发动机
公开(公告)号：US07418940B1
公开(公告)日：2008-09-02
申请号：US11847381
申请日：2007-08-30
申请人： Jianwen James Yi , Claudia Olivia Iyer , Brad Alan VanDerWege , Steven Wooldridge
发明人： Jianwen James Yi , Claudia Olivia Iyer , Brad Alan VanDerWege , Steven Wooldridge
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。

10. 发明授权

US07720593B2 Fuel injection strategy for gasoline direct injection engine during high speed/load operation 有权
标题翻译：汽油直喷发动机在高速/负载运行时的燃油喷射策略
公开(公告)号：US07720593B2
公开(公告)日：2010-05-18
申请号：US11865748
申请日：2007-10-02
申请人： Jianwen James Yi , Steven Todd Wooldridge , George Carver Davis
发明人： Jianwen James Yi , Steven Todd Wooldridge , George Carver Davis
IPC分类号： G06F19/00 , F02M51/00
CPC分类号： F02D41/401 , F02D41/402 , F02D2041/389 , Y02T10/44
摘要： A system and method for controlling operation of a multiple cylinder direct injection internal combustion engine include injecting fuel directly into the combustion chamber during the exhaust stroke at high engine speeds and loads to reduce the effect of intake airflow on the injection spray and improve fuel-air mixture homogeneity.
摘要翻译：用于控制多气缸直接喷射内燃机的操作的系统和方法包括在高发动机转速和负载下在排气冲程期间将燃料直接喷入燃烧室，以减少进气气流对注射喷雾的影响并改善燃料空气混合均匀。

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