Integrated arrangement of a high-pressure valve and an injection rail

Patent metadata

Field	Value
Publication number	US-10018170-B2
Application number	US-201414908607-A
Country	US
Kind code	B2
Filing date	Jul 21, 2014
Priority date	Jul 31, 2013
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

An arrangement of a high-pressure valve at the end of a common rail of a fuel injection system, a high-pressure channel of the rail opening out at one extremity of the rail, includes a throttle stopper arranged at the extremity of the rail. An output orifice restricts a section of the high-pressure channel and a valve seat is positioned in the throttle stopper. The output channel is fully formed inside the valve body.

First claim

The invention claimed is:

1. An arrangement of a high-pressure valve at one extremity of a common rail of a fuel injection system, a high-pressure channel of the rail opening out at the extremity of the rail, the arrangement comprising:
a body;
a blocking member within the body, the blocking member being moveable along a main axis such that the blocking member cooperates with a seat surrounding an output orifice so as to close the output orifice and to open the output orifice when the pressure of the fuel in the rail exceeds a predetermined threshold such that fuel is discharged toward an output channel when the blocking member opens the output orifice; and
a throttle stopper is flush with the extremity of the rail;
wherein the output orifice restricts a section of the high pressure channel;
wherein the valve seat is positioned in the throttle stopper;
wherein the output channel is fully formed inside the body;
wherein the valve body is provided with attachment means enabling the valve to be rigidly connected to the rail; and
wherein the valve is clipped to the end of the rail.

2. The arrangement as claimed in claim 1 , wherein the valve can be turned in relation to the rail to adjust the angular orientation of same.

Assignees

• Delphi Tech Ip Ltd

Inventors

• Marechal Michel
• Sauvage Frederic
• Rouet Jean-Luc
• Magre Mattieu

Classifications

• F02M63/0036

  with spherical or partly spherical shaped valve member ends · CPC title

• F02M63/0052 Primary

  with means for adjusting the opening pressure, e.g. electrically controlled · CPC title

• F02M63/0017

  using electromagnetic operating means · CPC title

• F02M55/025

  Common rails · CPC title

• F02M2200/8023

  the assembly involving use of quick-acting mechanisms, e.g. clips · CPC title