Unlock instant, AI-driven research and patent intelligence for your innovation.

Electronically controlled common rail diesel injection system

An injection system, common rail technology, applied in electrical control, charging system, fuel injection device, etc., can solve problems such as lag, current rise, etc., to avoid out-of-step, reduce response time, and ensure the effect of accuracy

Active Publication Date: 2018-12-25
PANZHIHUA UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional fuel injection system, due to the self-inductance of the solenoid valve, the current rises slowly, and the actual fuel injection will lag for a while

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electronically controlled common rail diesel injection system
  • Electronically controlled common rail diesel injection system
  • Electronically controlled common rail diesel injection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Under the same conditions, the dynamic simulation of the spring expansion and contraction and the armature stroke is carried out for the solenoid valve with traditional magnetic poles and the solenoid valve with conical magnetic poles. The simulation curve is as follows Figure 4-7 shown. By analyzing the dynamic simulation curve A of the solenoid valve with traditional magnetic poles and the dynamic simulation curve B of the solenoid valve with conical magnetic poles, it can be seen that the response of the solenoid valve with traditional magnetic poles in the extremely short stroke range is better than that of the solenoid valve with conical magnetic poles. The direction of the electromagnetic force formed by the solenoid valve with shaped magnetic poles has an angle with the direction of the armature movement, thereby reducing the electromagnetic force of the pull-in contact, increasing the release current, and shortening the release time. The release time is the main...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a fuel injection system, and provides an electrically controlled common rail type diesel injection system. The running state of an electromagnetic valve is controlled in a better manner, and response time of the diesel injection system is shortened. The electrically controlled common rail type diesel injection system comprises an electronic control device, a driving circuit, an actuating mechanism, a pressure sensor and a displacement sensor, wherein the pressure sensor and the displacement sensor are arranged on the actuating mechanism; the actuating mechanism comprises an electromagnetic valve; the pressure sensor is connected with the electronic control device; the displacement sensor is connected with the electronic control device; the electronic control device is connected with the driving circuit; and the driving circuit is connected with the actuating mechanism. The invention is suitable for the common rail type diesel injection system.

Description

technical field [0001] The invention relates to a fuel injection system, in particular to an electronically controlled common rail diesel injection system. Background technique [0002] Fuel injection control is the most important function in the fuel injection system of EFI engine. The electronically controlled diesel injection system consists of three parts: sensor, ECU (electronic control unit) and actuator. Its task is to electronically control the fuel injection system to realize real-time control of fuel injection volume and fuel injection timing according to operating conditions. Among them, the "time-pressure control" electronically controlled common rail diesel injection system is widely used. The common rail diesel injection system means that there is a common oil passage in the system, that is, the common rail. The solenoid valve is used to regulate the common rail oil pressure and the pressure sensor is used for feedback control, and it is stabilized at the targ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/38F02D41/20F02M51/06
CPCF02D41/20F02D41/38F02M51/061
Inventor 周振文超
Owner PANZHIHUA UNIV