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公开(公告)号：US11028810B2
公开(公告)日：2021-06-08
申请号：US16462853
申请日：2017-11-22
Applicant: Cummins Inc.
Inventor： Richard D. Thomas , Lester L. Peters , Anthony A. Shaull
Abstract: An injector is provided, comprising an injector body comprising an inlet passage configured to receive fluid, at least one injection outlet configured to deliver fluid, and a central bore, a needle valve disposed for reciprocal movement within the central bore between a closed position and an opened position; and an actuator configured to move the needle valve between the closed position wherein a first portion of a surface of the valve tip engages a first portion of a surface of the injector body to form a first seal that inhibits flow through the at least one injection outlet, and the opened position wherein a second portion of the surface of the valve tip engages a second portion of the surface of the injector body to form a second seal that inhibits flow through the drain outlet.
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公开(公告)号：US10605213B2
公开(公告)日：2020-03-31
申请号：US15241223
申请日：2016-08-19
Applicant: CUMMINS INC.
Inventor： Lester L. Peters , David L. Buchanan , Timothy P. Lutz , David B. Snyder , Derek G. Weiler , Clayton R. Westerfeld , Julie Anne Colin , Akintomide K. Akinola , Joseph Eric Parlow , Steven J. Kolhouse
Abstract: An injector combustion shield assembly comprising a bore configured to receive a fuel injector, the bore including a fluid opening in fluid communication with a fluid jacket and a fluid outlet positioned within an annular wall of the bore; and a valve positioned between the fluid jacket and the fluid opening and configured to selectively permit a fluid from the fluid jacket to enter the bore, the valve being movable between an open configuration to permit fluid flow from the fluid jacket into the bore via the fluid opening and a closed configuration to prevent fluid flow from the fluid jacket into the bore.
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公开(公告)号：US09897033B2
公开(公告)日：2018-02-20
申请号：US14713489
申请日：2015-05-15
Applicant: Cummins Inc.
Inventor： Lester L. Peters , David L. Buchanan , Bradlee J. Stroia , William David Daniel , Rajesh K. Garg , Richard D. Thomas
CPC classification number: F02D41/38 , F02D2041/389 , F02D2250/31 , F02M51/06 , F02M61/06 , F02M61/1886 , F02M61/1893
Abstract: 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：US10519911B2
公开(公告)日：2019-12-31
申请号：US15571127
申请日：2015-05-14
Applicant: CUMMINS INC.
Inventor： Anthony A. Shaull , Lester L. Peters , Brian M. Watson , Roberto M. Munoz
Abstract: A fuel pump for an internal combustion engine is provided comprising a barrel including a central bore having a longitudinal axis, a plunger disposed partially in the central bore and movable along the longitudinal axis, a spring retainer, a first coil spring having a proximal end in contact with a first section of the barrel and a distal end in contact with the spring retainer to urge the spring retainer into engagement with a tappet assembly, an extender element coupled to the plunger, and a second coil spring having a proximal end in contact with a second section of the barrel and a distal end in contact with the extender element to urge the plunger toward the spring retainer, wherein the extender element includes a counter-bore to couple the extender element to the plunger.
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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
Applicant: CUMMINS INC.
Inventor： Anthony Shaull , David L. Buchanan , Lester L. Peters , Bradlee J. Stroia , William D. Daniel
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20200217286A1
公开(公告)日：2020-07-09
申请号：US16462853
申请日：2017-11-22
Applicant: Cummins Inc.
Inventor： Richard D. Thomas , Lester L. Peters , Anthony A. Shaull
Abstract: An injector is provided, comprising an injector body comprising an inlet passage configured to receive fluid, at least one injection outlet configured to deliver fluid, and a central bore, a needle valve disposed for reciprocal movement within the central bore between a closed position and an opened position; and an actuator configured to move the needle valve between the closed position wherein a first portion of a surface of the valve tip engages a first portion of a surface of the injector body to form a first seal that inhibits flow through the at least one injection outlet, and the opened position wherein a second portion of the surface of the valve tip engages a second portion of the surface of the injector body to form a second seal that inhibits flow through the drain outlet.
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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
Applicant: CUMMINS INC.
Inventor： Bradlee J. Stroia , Lester L. Peters , David L. Buchanan , Rajesh K. Garg , Wei Ning
Abstract: 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
Applicant: CUMMINS INC.
Inventor： Lester L. Peters , David L. Buchanan , Bradlee J. Stroia , William David Daniel , Rajesh K. Garg , Richard D. Thomas
CPC classification number: F02D41/38 , F02D2041/389 , F02D2250/31 , F02M51/06 , F02M61/06 , F02M61/1886 , F02M61/1893
Abstract: 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：US09562505B2
公开(公告)日：2017-02-07
申请号：US13915305
申请日：2013-06-11
Applicant: CUMMINS INC.
Inventor： Vesa Hokkanen , David L. Buchanan , Lester L. Peters , Rajesh K. Garg
CPC classification number: F02M63/029 , F02M45/086 , F02M51/0603 , F02M2200/46 , F02M2200/703
Abstract: 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.
Abstract translation: 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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10.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
Applicant: CUMMINS INC.
Inventor： Lester L. Peters , David L. Buchanan , Vesa Hokkanen
CPC classification number: F02M27/08 , F02D41/2096 , F02D41/3005 , F02D41/38 , F02D2041/389 , F02M51/0603 , F02M69/041 , F02M2200/21
Abstract: 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.
Abstract translation: 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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