公开(公告)号：US09739246B2

公开(公告)日：2017-08-22

申请号：US14721691

申请日：2015-05-26

Applicant: CUMMINS INC.

Inventor： Lester Peters ,  David L. Buchanan

IPC: F02M61/00 ,  F02M61/18 ,  F02M51/06 ,  F02M61/16 ,  F02M45/08 ,  F02M45/12 ,  F02M61/04 ,  F02M61/08

CPC classification number: F02M61/1806 ,  F02M45/08 ,  F02M45/12 ,  F02M51/0603 ,  F02M61/045 ,  F02M61/08 ,  F02M61/161 ,  F02M2200/703 ,  Y02T10/123

Abstract: 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.

公开(公告)号：US20150252767A1

公开(公告)日：2015-09-10

申请号：US14721691

申请日：2015-05-26

Applicant: CUMMINS INC.

Inventor： Lester Peters ,  David L. Buchanan

IPC: F02M61/18 ,  F02M61/16 ,  F02M51/06

CPC classification number: F02M61/1806 ,  F02M45/08 ,  F02M45/12 ,  F02M51/0603 ,  F02M61/045 ,  F02M61/08 ,  F02M61/161 ,  F02M2200/703 ,  Y02T10/123

Abstract: 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.

Abstract translation: 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。