公开(公告)号：US09279400B2

公开(公告)日：2016-03-08

申请号：US13816310

申请日：2011-07-19

Applicant: Jochen Doehring ,  Wolfgang Ripper ,  Juergen Hanneke ,  Godehard Nentwig

Inventor： Jochen Doehring ,  Wolfgang Ripper ,  Juergen Hanneke ,  Godehard Nentwig

IPC: F02M47/02 ,  F02M7/02 ,  F01N3/20 ,  F01N3/36 ,  F02M57/02

CPC classification number: F02M47/025 ,  F01N3/20 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/36 ,  F01N2610/1453 ,  F02M7/02 ,  F02M47/02 ,  F02M47/027 ,  F02M57/027 ,  Y02T10/24

Abstract: The invention relates to an injection device (1), designed in particular for injecting fluid into an exhaust tract of an internal combustion engine, having a valve needle (14), an injection chamber (12) having at least one injection opening (44), and a control chamber (20). The injection device (1) is designed such that a pressure differential between the injection chamber (12) and the control chamber (20) brings about a displacement of the valve needle (14) between an open position in which a fluid flow through the injection opening (44) from the injection chamber (12) is released, and a closed position, in which the injection opening (44) is closed off. The injection chamber (22) and the control chamber (20) are hydraulically connected to an inlet (40, 42; 9), such that a pressure rise in the inlet (40, 42; 9) results in a pressure rise in the injection chamber (12), and a pressure rise in the control chamber (20) delayed in time relative to the pressure rise in the injection chamber (12), and said pressure differential brings about a displacement of the valve needle (14) from the closed position into an open position.

Abstract translation: 本发明涉及一种特别设计用于将流体注入内燃机的排气道的注射装置（1），其具有阀针（14），具有至少一个注射开口（44）的注射室（12） ，和控制室（20）。 注射装置（1）被设计成使得注射室（12）和控制室（20）之间的压力差导致阀针（14）在打开位置之间的位移，在该位置中流体通过注射器 从注射室（12）的开口（44）被释放，并且关闭位置，其中注射开口（44）被关闭。 注入室（22）和控制室（20）液压连接到入口（40,42; 9），使得入口（40,42; 9）中的压力升高导致注射器中的压力上升 并且所述控制室（20）中的压力上升相对于所述注射室（12）中的压力上升而在时间上延迟，并且所述压力差引起所述阀针（14）从所述闭合位置 置于敞开的位置。

公开(公告)号：US09206779B2

公开(公告)日：2015-12-08

申请号：US13812198

申请日：2011-07-18

Applicant: Nestor Rodriguez-Amaya ,  Jochen Doehring ,  Juergen Hanneke ,  Godehard Nentwig

Inventor： Nestor Rodriguez-Amaya ,  Jochen Doehring ,  Juergen Hanneke ,  Godehard Nentwig

IPC: F02M59/00 ,  F02M47/06 ,  F01N3/20 ,  F02M47/02 ,  F02M57/02 ,  F02M63/00

CPC classification number: F02M47/06 ,  F01N3/2066 ,  F01N2610/1453 ,  F02M47/025 ,  F02M57/027 ,  F02M63/0028 ,  Y02T10/24

Abstract: The invention relates to an injection device, in particular for injecting fluid into an exhaust tract of an internal combustion engine, having a valve unit which comprises a valve needle, an injection chamber having at least one injection opening, and a control chamber, wherein the injection device is designed so that a pressure differential between the injection chamber and the control chamber brings about a displacement of the valve needle between an open position in which the valve needle releases a fluid flow through the injection opening, and a closed position in which the valve needle closes off the injection opening. The injection device also has a pump unit integrated in the injection device. The pump unit is designed so as to draw in fluid from the fluid inlet during operation and to provide said fluid to the valve unit under increased pressure.

Abstract translation: 本发明涉及一种注射装置，特别是用于将流体注入内燃机的排气道，其具有包括阀针，具有至少一个注射开口的注射室和控制室的阀单元，其中， 注射装置被设计成使得注射室和控制室之间的压差导致阀针在阀针释放通过注射开口的流体流动的打开位置和关闭位置之间的位移，其中 阀针关闭注射口。 注射装置还具有集成在注射装置中的泵单元。 泵单元被设计成在操作期间从流体入口吸入流体并且在增加的压力下将所述流体提供给阀单元。

公开(公告)号：US20130214057A1

公开(公告)日：2013-08-22

申请号：US13816310

申请日：2011-07-19

Applicant: Jochen Doehring ,  Wolfgang Ripper ,  Juergen Hanneke ,  Godehard Nentwig

Inventor： Jochen Doehring ,  Wolfgang Ripper ,  Juergen Hanneke ,  Godehard Nentwig

IPC: F01N3/20

CPC classification number: F02M47/025 ,  F01N3/20 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/36 ,  F01N2610/1453 ,  F02M7/02 ,  F02M47/02 ,  F02M47/027 ,  F02M57/027 ,  Y02T10/24

Abstract: The invention relates to an injection device (1), designed in particular for injecting fluid into an exhaust tract of an internal combustion engine, having a valve needle (14), an injection chamber (12) having at least one injection opening (44), and a control chamber (20). The injection device (1) is designed such that a pressure differential between the injection chamber (12) and the control chamber (20) brings about a displacement of the valve needle (14) between an open position in which a fluid flow through the injection opening (44) from the injection chamber (12) is released, and a closed position, in which the injection opening (44) is closed off. The injection chamber (22) and the control chamber (20) are hydraulically connected to an inlet (40, 42; 9), such that a pressure rise in the inlet (40, 42; 9) results in a pressure rise in the injection chamber (12), and a pressure rise in the control chamber (20) delayed in time relative to the pressure rise in the injection chamber (12), and said pressure differential brings about a displacement of the valve needle (14) from the closed position into an open position.

Abstract translation: 本发明涉及一种特别设计用于将流体注入内燃机的排气道的注射装置（1），其具有阀针（14），具有至少一个注射开口（44）的注射室（12） ，和控制室（20）。 注射装置（1）被设计成使得注射室（12）和控制室（20）之间的压力差导致阀针（14）在打开位置之间的位移，在该位置中流体通过注射器 从注射室（12）的开口（44）被释放，并且关闭位置，其中注射开口（44）被关闭。 注入室（22）和控制室（20）液压连接到入口（40,42; 9），使得入口（40,42; 9）中的压力升高导致注射器中的压力上升 并且所述控制室（20）中的压力上升相对于所述注射室（12）中的压力上升而在时间上延迟，并且所述压力差引起所述阀针（14）从所述闭合位置 置于敞开的位置。

公开(公告)号：US20130119161A1

公开(公告)日：2013-05-16

申请号：US13812198

申请日：2011-07-18

Applicant: Nestor Rodriguez-Amaya ,  Jochen Doehring ,  Juergen Hanneke ,  Godehard Nentwig

Inventor： Nestor Rodriguez-Amaya ,  Jochen Doehring ,  Juergen Hanneke ,  Godehard Nentwig

IPC: F02M47/06

CPC classification number: F02M47/06 ,  F01N3/2066 ,  F01N2610/1453 ,  F02M47/025 ,  F02M57/027 ,  F02M63/0028 ,  Y02T10/24

Abstract: The invention relates to an injection device (2), in particular for injecting fluid into an exhaust tract of an internal combustion engine, having a valve unit which comprises a valve needle (6), an injection chamber (38) having at least one injection opening (8), and a control chamber (36), wherein the injection device (2) is designed so that a pressure differential between the injection chamber (38) and the control chamber (36) brings about a displacement of the valve needle (6) between an open position in which the valve needle (6) releases a fluid flow (through the injection opening (8), and a closed position in which the valve needle (6) closes off the injection opening (8). The injection device (2) also has a pump unit integrated in the injection device (2). The pump unit is designed so as to draw in fluid from the fluid inlet (32) during operation and to provide said fluid to the valve unit under increased pressure.

Abstract translation: 本发明涉及一种注射装置（2），特别是用于将流体注入内燃机的排气道，其具有阀单元，该阀单元包括阀针（6），具有至少一个注射的注射室（38） 开口（8）和控制室（36），其中所述注射装置（2）被设计成使得所述注射室（38）和所述控制室（36）之间的压差导致所述阀针 6）在其中阀针（6）释放流体流（通过注射开口（8））的打开位置和阀针（6）关闭注射开口（8）的关闭位置之间，注射 设备（2）还具有集成在注射装置（2）中的泵单元，泵单元被设计成在操作期间从流体入口（32）吸入流体，并且在增加的压力下将所述流体提供给阀单元 。