公开(公告)号：US09719457B2

公开(公告)日：2017-08-01

申请号：US14690648

申请日：2015-04-20

申请人： Cummins Intellectual Property, Inc.

发明人： Paul V. Moonjelly ,  Richard A. Booth ,  Lester L. Peters ,  Jeffrey C. Huang ,  Phanindra Garimella

IPC分类号： F02D41/40 ,  F02D41/00 ,  F02D41/22 ,  F02D35/02 ,  F02D41/38 ,  F02D41/14

CPC分类号： F02D41/401 ,  F02D35/023 ,  F02D35/028 ,  F02D41/0085 ,  F02D41/009 ,  F02D41/1439 ,  F02D41/22 ,  F02D41/221 ,  F02D41/3809 ,  F02D2041/1432 ,  F02D2041/224 ,  F02D2041/389 ,  F02D2200/0618 ,  Y02T10/44

摘要： This disclosure provides system and method that can determine hydraulic start of injection (SOI) in engines using an in-cylinder pressure sensor. The system and method determine apparent heat release rate (AHRR) curve data for the cylinder from the pressure information provided by the in-cylinder pressure sensors, and the hydraulic SOI from the derivative of the AHRR curve data. The system and method provide diagnostic, control and/or compensation opportunities for fuel injector operation in high pressure fuel rail engine systems without use of expensive or complex fuel injector components.

公开(公告)号：US10982639B2

公开(公告)日：2021-04-20

申请号：US15840660

申请日：2017-12-13

申请人： CUMMINS INTELLECTUAL PROPERTY, INC.

发明人： Lester L. Peters ,  Jeffrey C. Huang ,  David L. Buchanan ,  Corydon Edward Morris ,  Gary L. Gant ,  Denis Gill ,  Heribert Kammerstetter ,  Ernst Winklhofer

IPC分类号： F02M61/10 ,  F02M61/18 ,  F02M61/00

摘要： A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.

公开(公告)号：US20150226149A1

公开(公告)日：2015-08-13

申请号：US14690648

申请日：2015-04-20

申请人： Cummins Intellectual Property, Inc.

发明人： Paul V. Moonjelly ,  Richard A. Booth ,  Lester L. Peters ,  Jeffrey C. Huang ,  Phanindra Garimella

IPC分类号： F02D41/40 ,  F02D41/14 ,  F02D41/22 ,  F02D41/00 ,  F02D41/38

CPC分类号： F02D41/401 ,  F02D35/023 ,  F02D35/028 ,  F02D41/0085 ,  F02D41/009 ,  F02D41/1439 ,  F02D41/22 ,  F02D41/221 ,  F02D41/3809 ,  F02D2041/1432 ,  F02D2041/224 ,  F02D2041/389 ,  F02D2200/0618 ,  Y02T10/44

摘要： This disclosure provides system and method that can determine hydraulic start of injection (SOI) in engines using an in-cylinder pressure sensor. The system and method determine apparent heat release rate (AHRR) curve data for the cylinder from the pressure information provided by the in-cylinder pressure sensors, and the hydraulic SOI from the derivative of the AHRR curve data. The system and method provide diagnostic, control and/or compensation opportunities for fuel injector operation in high pressure fuel rail engine systems without use of expensive or complex fuel injector components.

摘要翻译： 本公开提供了可以使用缸内压力传感器确定发动机中的液压启动（SOI）的系统和方法。 该系统和方法根据缸内压力传感器提供的压力信息和AHRR曲线数据导数的液压SOI确定气缸的表观放热率（AHRR）曲线数据。 该系统和方法为高压燃料轨道发动机系统中的燃料喷射器操作提供诊断，控制和/或补偿机会，而不使用昂贵或复杂的燃料喷射器部件。