Control device and method of fuel system
A technology of fuel system and control device, which is applied in fuel injection control, fuel injection device, charging system, etc., and can solve problems such as the same, no improvement in fuel consumption, etc.
Active Publication Date: 2021-05-28
WEICHAI POWER CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of this invention is to at least solve the problem that the fuel injection pressures of the pre-injection and post-injection are the same in the existing fuel system, and the fuel consumption is not improved
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0039] It should be understood that terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated fea...
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
Login to View More Abstract
The invention belongs to the technical field of internal combustion engines, and particularly relates to a control device and method for a fuel system. According to the control device of the fuel system, a control cavity and an oil injection cavity are formed in an oil injection shell, an injection hole is formed in the oil injection shell, an oil injection assembly can be movably arranged in the oil injection shell so as to open or close the injection hole, the control cavity communicates with the oil injection cavity, and the oil injection cavity communicates with a common rail pipe; an oil drainage pipe communicates with the control cavity; an electromagnetic valve is arranged in the control cavity or on the oil drainage pipe; a pressure amplification unit communicates with the common rail pipe, the control cavity and the oil injection cavity; and a controller controls the electromagnetic valve to be opened or closed according to signals. Oil in the control cavity in an oil injector can be drained from the oil drainage pipe by opening the pressure amplification unit and the electromagnetic valve, when the oil injection pressure of the oil injector needs to be increased, the electromagnetic valve is closed, the oil injection cavity of the oil injector is pressurized through the pressure amplification unit, different pressure requirements can be met, and oil consumption can be improved.
Description
technical field [0001] The invention belongs to the technical field of internal combustion engines, and in particular relates to a control device and a control method for a fuel system. Background technique [0002] Pre-injection refers to a small amount of fuel injection before the main injection. Post-injection technology is one of the effective means to reduce pollutant emissions from diesel engines. In the existing fuel system, the fuel injection pressures of pre-injection and post-injection are the same. , unable to meet different pressure demands, no improvement on fuel consumption. Contents of the invention [0003] The purpose of the present invention is to at least solve the problem that the fuel injection pressures of the pre-injection and the post-injection are the same in the existing fuel system, and the fuel consumption is not improved. This purpose is achieved through the following technical solutions: [0004] A first aspect of the present invention propo...
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
Login to View More IPC IPC(8): F02D41/38F02M47/02F02M61/10F02M61/20
CPCF02D41/3836F02M47/02F02M61/10F02M61/20Y02T10/40
Inventor 李云华高慎勇陈栋栋
Owner WEICHAI POWER CO LTD