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

Method and apparatus for driving flow control electromagnetic proportional control valve

一种比例控制、流量控制的技术，应用在非电动变量控制、电动方式的流体压力控制、无辅助动力的流体压力控制等方向，能够解决阀门系统响应度下降、阀门系统不能进行流量稳定控制、控制流量偏差等问题

Inactive Publication Date: 2007-12-05
DIESEL KIKI CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the electromagnetic proportional control valve thus configured, static friction and dynamic friction are generated between the piston and the cylinder during operation, and hysteresis in piston displacement caused by such mechanically moving friction causes a decrease in the responsiveness of the valve system, Controlling deviations in flow and resulting
[0006] Other effects of difficulties preventing valve systems from stabilizing flow control

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
  • Method and apparatus for driving flow control electromagnetic proportional control valve
  • Method and apparatus for driving flow control electromagnetic proportional control valve
  • Method and apparatus for driving flow control electromagnetic proportional control valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] In order to describe the invention in more detail, the invention will now be illustrated with reference to the accompanying drawings.

[0037] Fig. 1 is a block diagram showing an embodiment of the present invention. Shown in the drawing is the structure of an internal combustion engine fuel injection system configured with an electromagnetic proportional control valve driving device according to the present invention. The fuel injection system 1 is a common rail type fuel injection system that uses a plurality of injectors 3 to directly inject high-pressure fuel accumulated in a common rail 2 into corresponding cylinders in an internal combustion engine not shown in the drawings. The system is configured for delivering high pressure fuel from the pump unit 4 to the common delivery line 2 .

[0038] The pump unit 4 is configured by pumping fuel 6 from a fuel tank 5 through a filter 7 provided outside by a feed pump 41 into a pair of high-pressure plungers 42, 43 driven...

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

In a method for driving a solenoid proportional control valve (44) used for flow rate control of a common rail system pump adapted to regulate flow rate by regulating the duty ratio of a pulse voltage applied to a solenoid coil (F) of a solenoid (44E), when an operating condition liable to cause hysteresis in the operation of the solenoid proportional control valve (44) is present, the peak value or pulse width of the pulse voltage is temporarily increased to instantaneously boost the driving force of the solenoid (44E), thereby ensuring smooth operation of a piston (44C) and stabilizing the flow rate control.

Description

technical field [0001] The invention relates to a driving method and equipment for an electromagnetic proportional control valve for flow control. Background technique [0002] Electromagnetic proportional control valves for flow control have long been used in a variety of systems to control the flow of liquid fuels and other fluids. For example, the fuel injection system is considered to collect high-pressure fuel in a common fuel pipe and inject high-pressure fuel into cylinders of an internal combustion engine through injectors. The pump unit provided for delivering high-pressure fuel into the common fuel supply pipe in the above-mentioned system includes a fuel supply pump for supplying fuel from a fuel tank and is configured to pressurize the fuel delivered by the fuel pump with a high-pressure plunger, Fuel at increased pressure is delivered to the common rail. The solenoid proportional control valve controls the fuel delivered from the feed pump to the high-pressure...

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): F16K31/06F02M51/00F02M59/36F02M59/46G05D16/10G05D16/20
CPCG05D16/2013G05D16/10F02D41/3845F02D2041/2027G05D16/2022F16K31/06
Inventor 久保田一哉桑田哲也松田范夫
Owner DIESEL KIKI CO LTD