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1. 发明授权

US08770260B2 Method for rapid generation of multiple investment cast parts such as turbine or compressor wheels 有权
标题翻译：用于快速生成多个投资铸造件如涡轮或压缩机轮的方法
公开(公告)号：US08770260B2
公开(公告)日：2014-07-08
申请号：US12490685
申请日：2009-06-24
申请人： Stephen I. Roby
发明人： Stephen I. Roby
IPC分类号： B22D29/00 , B22C11/00 , B22C19/04
CPC分类号： B22C9/04 , B22C7/02 , B29C64/00 , B33Y50/00 , B33Y80/00 , Y02P10/292
摘要： The process for investment casting of complex shapes has historically had 6 basic steps in it. Depending upon the path taken, these discrete steps have been reduced to either 5 steps, or to 2 steps, discarding the unwanted steps. Instead of having to generate the shape of each sacrificial pattern, the process generates either (A) a male tree containing a plurality of sacrificial patterns, already on their runners, onto which a mold shell can be formed, or, (B) a female shell, made of a refractory material, and forming internally the outside surfaces of the plurality of patterns and runners. This process removes both capital expenditure for tooling and process time by up to 90%. By removing several lengthy, time-dependant steps from the process the part cost and lead time are reduced.
摘要翻译：投资铸造复杂形状的过程历来有六个基本步骤。根据所采取的路径，这些离散步骤已经减少到5个步骤，或者2个步骤，丢弃了不需要的步骤。代替产生每个牺牲图案的形状，该过程产生（A）包含已经在其流道上的多个牺牲图案的雄性树，其上可以形成模具壳，或者（B）女性壳体，由耐火材料制成，并且在内部形成多个图案和流道的外表面。此过程将工具和处理时间的资本支出都减少了高达90％。通过从该过程中消除几个冗长的，时间依赖的步骤，部件成本和交货时间减少。

2. 发明授权

US08702394B2 Turbocharger including cast titanium compressor wheel 有权
标题翻译：涡轮增压器包括铸钛压缩机轮
公开(公告)号：US08702394B2
公开(公告)日：2014-04-22
申请号：US12019434
申请日：2008-01-24
申请人： David Decker , Stephen I. Roby
发明人： David Decker , Stephen I. Roby
IPC分类号： F04D29/30
CPC分类号： B22C7/02 , B22C9/04 , F04D29/023 , F04D29/284 , F05D2230/211 , F05D2300/133
摘要： An air boost device such as a turbocharger, wherein the compressor wheel thereof is re-designed to permit die inserts (20), which occupy the air passage and define the blades (4, 5) during a process of forming a wax pattern (21) of a compressor wheel, to be pulled without being impeded by the blades. This modified blade design enables the automated production of wax patterns (21) using simplified tooling. The compressor wheel improves low cycle fatigue, withstands high temperatures and temperature changes, and permits operation at high boost pressure ratio while, on the other hand, having low weight, low inertial drag, and high responsiveness.
摘要翻译：一种空气增压装置，例如涡轮增压器，其中，其压缩机叶轮被重新设计成允许在形成蜡图案（21）的过程中占据空气通道并限定叶片（4,5）的模具插入件（20））被拉动而不被叶片阻碍。这种改进的刀片设计使得能够使用简化的工具自动生产蜡图案（21）。压缩机叶轮可以改善低循环疲劳，耐高温和温度变化，并允许在高增压压力下进行操作，另一方面则具有重量轻，惯性阻力低，响应性高。

3. 发明授权

US08632304B2 Turbocharger diffuser 有权
标题翻译：涡轮增压器扩散器
公开(公告)号：US08632304B2
公开(公告)日：2014-01-21
申请号：US12664201
申请日：2008-06-26
申请人： Patrick Sweetland , David G. Grabowska , Aleksandar Sekularac , Stephen I. Roby
发明人： Patrick Sweetland , David G. Grabowska , Aleksandar Sekularac , Stephen I. Roby
IPC分类号： F01D5/04 , F01D1/08
CPC分类号： F04D29/444 , F01D9/026 , F04D29/441 , F05D2220/40 , F05D2250/314 , F05D2250/52 , F05D2250/71
摘要： A housing (410, 510, 610, 700, 800, 900) for a turbocharger (400, 500, 600) is provided. The housing (410, 510, 610, 700, 800, 900) has an impeller chamber (403, 503, 603), diffuser (450, 550, 650, 750, 850, 950) and scroll (420, 520, 620, 720, 820, 920) in fluid communication with each other. The diffuser (450, 550, 650, 750, 850, 950) can have a curved shape and/or a bend (455) in proximity to a tip (408, 508, 608, 609) of the impeller (405, 505, 605). The curved shape can be defined by one or more radii of curvature (RC, RC1, RC2). The diffuser (450, 550, 650, 750, 850, 950) can extend in a radial direction that is non-orthogonal to the center line of the turbocharger (400, 500, 600). The housing (410, 510, 610, 700, 800, 900) can be for a compressor section of the turbocharger (400, 500, 600).
摘要翻译：提供了一种用于涡轮增压器（400,500,600）的壳体（410,510,610,700,800,900）。壳体（410,510,610,700,8800,900）具有叶轮室（403,503,603），扩散器（450,550,650,750,850,950）和涡旋件（420,520,620,920） 720,820,920）彼此流体连通。漫射器（450,550,650,750,850,950）可以具有靠近叶轮（405,505,950,950,950,550,950）的尖端（408,508,608,609）的弯曲形状和/或弯曲部（455） 605）。弯曲形状可以由一个或多个曲率半径（RC，RC1，RC2）定义。扩散器（450,550,650,750,850,950）可以在与涡轮增压器（400,500,600）的中心线非正交的径向方向上延伸。壳体（410,510,610,700,800,900）可以用于涡轮增压器（400,500,600）的压缩机部分。

4. 发明授权

US6089019A Turbocharger and EGR system 有权
标题翻译：涡轮增压器和EGR系统
公开(公告)号：US6089019A
公开(公告)日：2000-07-18
申请号：US232361
申请日：1999-01-15
申请人： Stephen I. Roby , Steven R. McKinley
发明人： Stephen I. Roby , Steven R. McKinley
IPC分类号： F02B37/00 , F02B37/02 , F02B37/18 , F02B37/22 , F02B37/24 , F02B39/14 , F02D9/04 , F02D21/08 , F02D23/00 , F02D35/00 , F02D41/00 , F02M25/07
CPC分类号： F02B37/22 , F02B39/14 , F02D9/04 , F02M26/05 , F02M26/09 , F02M26/10 , F02M26/16 , F02M26/51 , F02M26/67 , F02M26/70 , F02M26/71 , F02B37/18 , F02D2250/34 , F02D41/0065 , Y02T10/144
摘要： An exhaust gas recirculation system for an internal combustion engine. The present invention includes a turbocharger, restrictor valve, and exhaust gas recirculation valve. The restrictor valve is upstream of the turbine of the turbocharger, and restricts the flow of exhaust gas into the turbine. This restriction results in an increase in pressure of the exhaust gas provided to the restrictor valve. The increased pressure exhaust gas is provided to the inlet of an exhaust gas recirculation valve which may be actuatable independently of the actuation of the restrictor valve. The restrictor valve may be modulated until exhaust pressure is greater than the pressure of the intake gas. The restrictor valve creates a pressure differential suitable for recirculating a portion of exhaust gas through the EGR valve and into the intake manifold of the engine. The restrictor valve may also be operated without recirculation of exhaust gas, such as during cold starting of a diesel engine so as to increase the load on the engine and decrease the warm-up time of the engine. Some embodiments of the present invention utilize an electronic controller for operating the restrictor valve and the EGR valve.
摘要翻译：一种用于内燃机的废气再循环系统。本发明包括涡轮增压器，限流阀和排气再循环阀。限流阀在涡轮增压器的涡轮机的上游，并限制排气流入涡轮。这种限制导致提供给限流阀的废气的压力增加。增加的压力排气被提供到废气再循环阀的入口，废气再循环阀可以独立于限制阀的致动而致动。限流阀可以被调制直到排气压力大于进气的压力。限流阀产生适于使排气的一部分再循环通过EGR阀并进入发动机的进气歧管的压力差。限制阀也可以在废气再循环的情况下运行，例如在柴油发动机的冷起动期间，以增加发动机的负荷并减少发动机的预热时间。本发明的一些实施例利用电子控制器来操作限流阀和EGR阀。

5. 发明申请

US20100202877A1 TURBOCHARGER DIFFUSER 有权
公开(公告)号：US20100202877A1
公开(公告)日：2010-08-12
申请号：US12664201
申请日：2008-06-26
申请人： Patrick Sweetland , David G. Grabowska , Aleksandar Sekularac , Stephen I. Roby
发明人： Patrick Sweetland , David G. Grabowska , Aleksandar Sekularac , Stephen I. Roby
IPC分类号： F02B33/40 , F04D29/44
CPC分类号： F04D29/444 , F01D9/026 , F04D29/441 , F05D2220/40 , F05D2250/314 , F05D2250/52 , F05D2250/71
摘要： A housing (410, 510, 610, 700, 800, 900) for a turbocharger (400, 500, 600) is provided. The housing (410, 510, 610, 700, 800, 900) has an impeller chamber (403, 503, 603), diffuser (450, 550, 650, 750, 850, 950) and scroll (420, 520, 620, 720, 820, 920) in fluid communication with each other. The diffuser (450, 550, 650, 750, 850, 950) can have a curved shape and/or a bend (455) in proximity to a tip (408, 508, 608, 609) of the impeller (405, 505, 605). The curved shape can be defined by one or more radii of curvature (RC, RC1, RC2). The diffuser (450, 550, 650, 750, 850, 950) can extend in a radial direction that is non-orthogonal to the center line of the turbocharger (400, 500, 600). The housing (410, 510, 610, 700, 800, 900) can be for a compressor section of the turbocharger (400, 500, 600).
摘要翻译：提供了一种用于涡轮增压器（400,500,600）的壳体（410,510,610,700,800,900）。壳体（410,510,610,700,8800,900）具有叶轮室（403,503,603），扩散器（450,550,650,750,850,950）和涡旋件（420,520,620,920） 720,820,920）彼此流体连通。漫射器（450,550,650,750,850,950）可以具有靠近叶轮（405,505,950,950,950,550,950）的尖端（408,508,608,609）的弯曲形状和/或弯曲部（455） 605）。弯曲形状可以由一个或多个曲率半径（RC，RC1，RC2）定义。扩散器（450,550,650,750,850,950）可以在与涡轮增压器（400,500,600）的中心线非正交的径向方向上延伸。壳体（410,510,610,700,800,900）可以用于涡轮增压器（400,500,600）的压缩机部分。

6. 发明授权

US06904949B2 Method of making turbocharger including cast titanium compressor wheel 有权
标题翻译：制造包括铸钛压缩机轮的涡轮增压器的方法
公开(公告)号：US06904949B2
公开(公告)日：2005-06-14
申请号：US10661251
申请日：2003-09-12
申请人： David Decker , Stephen I. Roby
发明人： David Decker , Stephen I. Roby
IPC分类号： F02B39/00 , B22C7/02 , B22C9/04 , B22C9/22 , F04D29/02 , F04D29/28
CPC分类号： B22C7/02 , B22C9/04 , F04D29/023 , F04D29/284 , F05D2230/211 , F05D2300/133
摘要： A method of making an air boost device, wherein a compressor wheel incorporated therein is re-designed to permit die inserts (20), which occupy the air passage and define the blades (4, 5) during a process of forming a wax pattern (21) of a compressor wheel, to be pulled without being impeded by the blades. This modified blade design enables the automated production of wax patterns (21) using simplified tooling. These wax patterns (21) can be used in a large-scale investment casting process, and produce an economical cast titanium compressor wheel which performs aerodynamically at high boost pressure/RPM.
摘要翻译：一种制造空气增压装置的方法，其中结合在其中的压缩机叶轮被重新设计成允许在形成蜡图案的过程中占据空气通道并限定叶片（4,5）的模具插入件（20）压缩机叶轮的第二部分（21），被拉动而不被叶片阻碍。这种改进的刀片设计使得能够使用简化的工具自动生产蜡图案（21）。这些蜡图案（21）可用于大规模熔模铸造工艺，并生产经济的铸钛压缩机轮，其在高增压/ RPM下空气动力学。

7. 发明申请

US20100006252A1 METHOD FOR RAPID GENERATION OF MULTIPLE INVESTMENT CAST PARTS SUCH AS TURBINE OR COMPRESSOR WHEELS 有权
标题翻译：用于快速生成多台投资车辆部件如涡轮或压缩机轮的方法
公开(公告)号：US20100006252A1
公开(公告)日：2010-01-14
申请号：US12490685
申请日：2009-06-24
申请人： Stephen I. Roby
发明人： Stephen I. Roby
IPC分类号： B22C9/00 , B22C7/00
CPC分类号： B22C9/04 , B22C7/02 , B29C64/00 , B33Y50/00 , B33Y80/00 , Y02P10/292
摘要： The process for investment casting of complex shapes has historically had 6 basic steps in it. Depending upon the path taken, these discrete steps have been reduced to either 5 steps, or to 2 steps, discarding the unwanted steps. Instead of having to generate the shape of each sacrificial pattern, the process generates either (A) a male tree containing a plurality of sacrificial patterns, already on their runners, onto which a mold shell can be formed, or, (B) a female shell, made of a refractory material, and forming internally the outside surfaces of the plurality of patterns and runners. This process removes both capital expenditure for tooling and process time by up to 90%. By removing several lengthy, time-dependant steps from the process the part cost and lead time are reduced.
摘要翻译：投资铸造复杂形状的过程历来有六个基本步骤。根据所采取的路径，这些离散步骤已经减少到5个步骤，或者2个步骤，丢弃了不需要的步骤。代替产生每个牺牲图案的形状，该过程产生（A）包含已经在其流道上的多个牺牲图案的雄性树，其上可以形成模具壳，或者（B）女性壳体，由耐火材料制成，并且在内部形成多个图案和流道的外表面。此过程将工具和处理时间的资本支出都减少了高达90％。通过从该过程中消除几个冗长的，时间依赖的步骤，部件成本和交货时间减少。

8. 发明授权

US06263672B1 Turbocharger and EGR system 有权
标题翻译：涡轮增压器和EGR系统
公开(公告)号：US06263672B1
公开(公告)日：2001-07-24
申请号：US09572609
申请日：2000-05-17
申请人： Stephen I. Roby , Steven R. McKinley
发明人： Stephen I. Roby , Steven R. McKinley
IPC分类号： F02M2507
CPC分类号： F02B37/22 , F02B37/18 , F02B39/14 , F02D9/04 , F02D41/0065 , F02D2250/34 , F02M26/05 , F02M26/09 , F02M26/10 , F02M26/16 , F02M26/51 , F02M26/67 , F02M26/70 , F02M26/71 , Y02T10/144
摘要： An exhaust gas recirculation system for an internal combustion engine. The present invention includes a turbocharger, restrictor valve, and exhaust gas recirculation valve. The restrictor valve is upstream of the turbine of the turbocharger, and restricts the flow of exhaust gas into the turbine. This restriction results in an increase in pressure of the exhaust gas provided to the restrictor valve. The increased pressure exhaust gas is provided to the inlet of an exhaust gas recirculation valve which may be actuatable independently of the actuation of the restrictor valve. The restrictor valve may be modulated until exhaust pressure is greater than the pressure of the intake gas. The restrictor valve creates a pressure differential suitable for recirculating a portion of exhaust gas through the EGR valve and into the intake manifold of the engine. The restrictor valve may also be operated without recirculation of exhaust gas, such as during cold starting of a diesel engine so as to increase the load on the engine and decrease the warm-up time of the engine. Some embodiments of the present invention utilize an electronic controller for operating the restrictor valve and the EGR valve.
摘要翻译：一种用于内燃机的废气再循环系统。本发明包括涡轮增压器，限流阀和排气再循环阀。限流阀在涡轮增压器的涡轮机的上游，并限制排气流入涡轮。这种限制导致提供给限流阀的废气的压力增加。增加的压力排气被提供到废气再循环阀的入口，废气再循环阀可以独立于限制阀的致动而致动。限流阀可以被调制直到排气压力大于进气的压力。限流阀产生适于使排气的一部分再循环通过EGR阀并进入发动机的进气歧管的压力差。限制阀也可以在废气再循环的情况下运行，例如在柴油发动机的冷起动期间，以增加发动机的负荷并减少发动机的预热时间。本发明的一些实施例利用电子控制器来操作限流阀和EGR阀。

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