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

Injector

A technology of injectors and nozzles, used in fuel injection devices, fuel injection control, instruments, etc.

Pending Publication Date: 2021-06-11
LIEBHERR COMPONENTS DEGGENDORF GMBH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current flowing to ground should only be of the order of a few milliamps, so that the control unit does not detect a false detection of a short circuit that does not actually exist

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
  • Injector
  • Injector
  • Injector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 Some components of the injector 1 according to the invention are shown. It can be seen in the figure that the input line 4 and the output line 5 correspond to the coil contacts for the coil of the electromagnet on the electromagnetic arrangement of the injector 1 . Here, the magnetic coil is surrounded by a fuel overmolding 8 , at the lower end of which a continuous contact is arranged towards the seat plate 9 . In the schematic diagram a switch 3 formed by the nozzle needle and the nozzle needle seat can be seen, which is opened or closed depending on the state of the injector. It is not shown in the drawings that the end of the switch away from the seat plate 9 is connected to the ground.

[0031] If the switch 3 is closed and if current flows through the coil, for example, as is the case when the needle starts to rise, a part of the current flows from the actual circuit of the input line 4 and output line 5 in the direction of ground potential through the ...

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 an injector for injecting fuel, comprising an injector housing, a movable nozzle needle, which is arranged in the injector housing and has a nozzle needle tip, and a nozzle needle seat for receiving the nozzle needle tip. A contact pairing of the nozzle needle and the nozzle needle seat constitutes a mechanical switch, which assumes a closed state when the nozzle needle tip contacts the nozzle needle seat and an open state when the contact is interrupted. Furthermore, according to the invention, the injector has an input line and an output line for controlling movement of the nozzle needle, the switch has a first terminal, which is connected to the input line, and a second terminal, which is connected to the injector housing, and a resistor is connected between the first terminal of the switch and the input line. The inventive is characterized in that the resistor is a high-temperature resistor chip.

Description

technical field [0001] The invention relates to an injector, also known as an injection valve. Such injectors are commonly used in internal combustion engines and generally work on the servo principle, in which an actuator is set into motion by applying a voltage and the nozzle needle of the injector is raised from the nozzle needle seat by means of a hydraulic drive system, whereby high-pressure fuel Spray into combustion space. The general operating principle of injectors is familiar to those skilled in the art and will only be partly explained in the present invention. Background technique [0002] It has been the case in the past that the delayed response of the injectors to the electrical signal was also sufficient to accurately represent the engine's accuracy for the desired untreated emissions. However, as parts of the emission regulations become more stringent, a more precise observation of the injection behavior of the injector is required, which can also be corre...

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 Applications(China)
IPC IPC(8): F02M57/00F02M51/00F02D41/20F02M51/06F02M65/00
CPCF02M57/005F02M2200/242F02M2200/245F02M51/061F02M2200/20F02M2700/072F02M51/005F02D41/20F02D2041/2055F02D2041/2058F02M65/005F02M2200/8046F02M61/10F02M61/1886
Inventor N·舍夫班克V·克格尔R·皮尔克B·科普
Owner LIEBHERR COMPONENTS DEGGENDORF GMBH