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公开(公告)号：US20190293039A1
公开(公告)日：2019-09-26
申请号：US16301497
申请日：2016-05-16
申请人： CUMMINS INC.
摘要： A fluid injector assembly extending along a longitudinal axis comprising a housing, and an injector positioned within the housing, the injector comprising a injector body having an interior cavity, a plunger positioned within the interior cavity and comprising a plunger body, a fluid delivery passage along at least a portion of the plunger body, and a plunger tip positioned at a downstream end of the plunger body, the fluid delivery passage comprising a longitudinal passage and at least one internal swirl passage, and the internal swirl passage being angled relative to the longitudinal axis and extending from the longitudinal passage to an opening upstream of the plunger tip, and a nozzle positioned at a downstream end of the injector body and including at least one nozzle passage, fluid being delivered from an upstream end of the injector to the at least one nozzle passage through the fluid delivery passage.
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公开(公告)号：US10415524B2
公开(公告)日：2019-09-17
申请号：US15890786
申请日：2018-02-07
申请人： CUMMINS INC.
摘要： An injector, comprising, an injector body comprising, an inner wall that defines an injector cavity for fluid, at least one inlet channel into the injector cavity, and at least one outlet channel from the injector cavity, a plunger that defines at least one passageway between the injector cavity and the at least one outlet channel, the plunger being movable longitudinally in the injector cavity between at least: a first open arrangement in which the at least one passageway is positioned to direct fluid into the at least one outlet channel at a first position, and a second open arrangement in which the at least one passageway is positioned to direct fluid into the at least one outlet channel at a second position different from the first position.
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公开(公告)号：US20180080405A1
公开(公告)日：2018-03-22
申请号：US15825261
申请日：2017-11-29
申请人： CUMMINS INC.
发明人： Lester L. Peters , David L. Buchanan , Bradlee J. Stroia , William David Daniel , Rajesh K. Garg , Richard D. Thomas
CPC分类号： F02D41/38 , F02D2041/389 , F02D2250/31 , F02M51/06 , F02M61/06 , F02M61/1886 , F02M61/1893
摘要： The present disclosure provides a fuel injector for an internal combustion engine with a fuel injector body having a valve chamber, a first conduit in fluid communication with the valve chamber for a first flow of fuel having a first pressure, and a second conduit in fluid communication with the valve chamber for a second flow of fuel having a second pressure. The fuel injector further includes a valve member configured to move between the first conduit and the second conduit. Additionally, an actuator of the fuel injector is configured to move the valve member during a fuel injection cycle. The fuel injector is configured to operate in at least three modes.
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公开(公告)号：US09739246B2
公开(公告)日：2017-08-22
申请号：US14721691
申请日：2015-05-26
申请人： CUMMINS INC.
发明人： Lester Peters , David L. Buchanan
IPC分类号： F02M61/00 , F02M61/18 , F02M51/06 , F02M61/16 , F02M45/08 , F02M45/12 , F02M61/04 , F02M61/08
CPC分类号： F02M61/1806 , F02M45/08 , F02M45/12 , F02M51/0603 , F02M61/045 , F02M61/08 , F02M61/161 , F02M2200/703 , Y02T10/123
摘要： A fuel injector is provided that creates variable spray characteristics to effectively reduce emissions, such as NOx emissions and particulate matter. The injector includes a nozzle valve element of the outwardly opening type including a fuel delivery passage and spray holes. The nozzle valve element is operable to move to a low lift position to cause fuel flowing from the spray holes to impinge on the injector body and to deflect toward the combustion chamber, and to move to a high lift position to cause fuel flowing from the spray holes to avoid impingement on injector body and flow in an obstructed manner directly into the combustion chamber. An annular chamber may be formed in the nozzle valve element adjacent the spray holes to receive fuel.
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公开(公告)号：US09562505B2
公开(公告)日：2017-02-07
申请号：US13915305
申请日：2013-06-11
申请人： CUMMINS INC.
CPC分类号： F02M63/029 , F02M45/086 , F02M51/0603 , F02M2200/46 , F02M2200/703
摘要： The disclosure provides an improved fuel injector and method of operating the fuel injector to provide at least two different types of fuel spray to a combustion chamber of an internal combustion engine. The two types of spray are formed by providing a first fuel pressure to the fuel injector during a first portion of an injection event at a first pressure and providing a second fuel pressure to the fuel injection during a second portion of the injection event, and maintaining a substantially constant fuel flow rate throughout the injection event.
摘要翻译： 本公开提供了一种改进的燃料喷射器和操作燃料喷射器的方法，以向内燃机的燃烧室提供至少两种不同类型的燃料喷雾。 在喷射事件的第一部分在第一压力下向燃料喷射器提供第一燃料压力并在喷射事件的第二部分期间向燃料喷射提供第二燃料压力并且保持 在整个喷射事件期间基本上恒定的燃料流量。
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16.发明授权公开(公告)号：US09506429B2
公开(公告)日：2016-11-29
申请号：US13915481
申请日：2013-06-11
申请人： CUMMINS INC.
CPC分类号： F02M27/08 , F02D41/2096 , F02D41/3005 , F02D41/38 , F02D2041/389 , F02M51/0603 , F02M69/041 , F02M2200/21
摘要： The present disclosure provides an improved system and method of operating a fuel injector of an engine to provide at least two different types of fuel spray in a combustion chamber of the engine by application of ultrasonic pulses to fuel in the fuel injector during an injection event. A first type of spray includes larger droplets that reduce the effective diffusion combustion area around the droplets and a second type of spray includes relatively small droplets that increase the effective diffusion combustion area around the droplets.
摘要翻译： 本公开提供了一种操作发动机的燃料喷射器的改进的系统和方法，以在喷射事件期间通过在燃料喷射器中的燃料施加超声波脉冲来在发动机的燃烧室中提供至少两种不同类型的燃料喷雾。 第一类型的喷雾包括更大的液滴，其减小了液滴周围的有效扩散燃烧区域，并且第二类型的喷雾包括增加液滴周围的有效扩散燃烧区域的相对小的液滴。
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公开(公告)号：US20150330344A1
公开(公告)日：2015-11-19
申请号：US14713489
申请日：2015-05-15
申请人： Cummins Inc.
发明人： Lester L. Peters , David L. Buchanan , Bradlee J. Stroia , William David Daniel , Rajesh K. Garg , Richard D. Thomas
IPC分类号： F02M51/06
CPC分类号： F02D41/38 , F02D2041/389 , F02D2250/31 , F02M51/06 , F02M61/06 , F02M61/1886 , F02M61/1893
摘要： The present disclosure provides a fuel injector for an internal combustion engine with a fuel injector body having a valve chamber, a first conduit in fluid communication with the valve chamber for a first flow of fuel having a first pressure, and a second conduit in fluid communication with the valve chamber for a second flow of fuel having a second pressure. The fuel injector further includes a valve member configured to move between the first conduit and the second conduit. Additionally, an actuator of the fuel injector is configured to move the valve member during a fuel injection cycle. The fuel injector is configured to operate in at least three modes.
摘要翻译： 本公开提供了一种用于具有燃料喷射器主体的内燃机的燃料喷射器，燃料喷射器主体具有阀室，与阀室流体连通的用于具有第一压力的燃料的第一流动的第一导管和流体连通的第二导管 其中阀室用于具有第二压力的第二燃料流。 燃料喷射器还包括构造成在第一导管和第二导管之间移动的阀构件。 另外，燃料喷射器的致动器构造成在燃料喷射循环期间移动阀构件。 燃料喷射器被配置为以至少三种模式操作。
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公开(公告)号：US20150252767A1
公开(公告)日：2015-09-10
申请号：US14721691
申请日：2015-05-26
申请人： CUMMINS INC.
发明人： Lester Peters , David L. Buchanan
CPC分类号： F02M61/1806 , F02M45/08 , F02M45/12 , F02M51/0603 , F02M61/045 , F02M61/08 , F02M61/161 , F02M2200/703 , Y02T10/123
摘要： A fuel injector is provided that creates variable spray characteristics to effectively reduce emissions, such as NOx emissions and particulate matter. The injector includes a nozzle valve element of the outwardly opening type including a fuel delivery passage and spray holes. The nozzle valve element is operable to move to a low lift position to cause fuel flowing from the spray holes to impinge on the injector body and to deflect toward the combustion chamber, and to move to a high lift position to cause fuel flowing from the spray holes to avoid impingement on injector body and flow in an obstructed manner directly into the combustion chamber. An annular chamber may be formed in the nozzle valve element adjacent the spray holes to receive fuel.
摘要翻译： 提供了一种燃料喷射器，其产生可变喷射特性以有效地减少诸如NOx排放物和颗粒物质的排放。 喷射器包括一个包括燃料输送通道和喷射孔的向外开口类型的喷嘴阀元件。 喷嘴阀元件可操作以移动到较低的提升位置，以使来自喷孔的燃料流入喷射器主体并且朝向燃烧室偏转，并且移动到高升程位置以使燃料从喷雾流出 孔，以避免冲击喷射器主体并以阻碍的方式直接流入燃烧室。 可以在喷嘴阀元件中邻近喷射孔形成环形室，以接收燃料。
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公开(公告)号：US20150190753A1
公开(公告)日：2015-07-09
申请号：US14592490
申请日：2015-01-08
申请人： Cummins Inc.
CPC分类号： F02M61/045 , B01D53/90 , F01N3/2066 , F01N2610/1453 , F02B23/0669 , F02M61/1813 , F02M61/184 , Y02T10/125 , Y02T10/24
摘要： An injector, comprising, an injector body comprising, an inner wall that defines an injector cavity for fluid, at least one inlet channel into the injector cavity, and at least one outlet channel from the injector cavity, a plunger that defines at least one passageway between the injector cavity and the at least one outlet channel, the plunger being movable longitudinally in the injector cavity between at least: a first open arrangement in which the at least one passageway is positioned to direct fluid into the at least one outlet channel at a first position, and a second open arrangement in which the at least one passageway is positioned to direct fluid into the at least one outlet channel at a second position different from the first position.
摘要翻译： 一种喷射器，包括：喷射器主体，其包括：内壁，其限定用于流体的喷射器空腔;至少一个入口通道进入所述喷射器腔;以及至少一个来自所述喷射器腔的出口通道;柱塞，其限定至少一个通道 在所述喷射器空腔和所述至少一个出口通道之间，所述柱塞至少在第一开放装置中在所述喷射器空腔中纵向移动，其中所述至少一个通道被定位成将流体引导到所述至少一个出口通道 第一位置和第二打开布置，其中至少一个通道被定位成在不同于第一位置的第二位置处将流体引导到至少一个出口通道中。
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