With this, an output of an NAND circuit 8 becomes a low level and thereby a transistor 9 of a fuel control device 7 comes into a state of non-conductivity, i.e., 'OFF' period. As a result, control signals to the fuel-injector 1 from the control unit 2 is shut off, stopping the...
Pat. No. 5,234,170, means for achieving finely divided atomisation of fuel from an injector into the cylinder of an internal combustion engine, known as the charged injection process. The means consists essentially of a pair of electrodes situated on either side of the delivery orifice of a ...
All the parameters can be divided into three kinds: (a) known parameters such as nozzle diameter of the injector, size of the propeller, cylinder number and size, and compression ratio which are available from engine manufacturers; (b) arbitrarily set parameters. These parameters are always non...
on the injection time of each fuel injection valve 20 in the case of fuel injection by each fuel injection valve 20 in one combustion cycle of the engine 10, and injects the injector by the set power supply voltage Each fuel injection valve 20 is driven by a driving circuit.Diagram福田...
FIG. 1 is a schematic diagram of one form of a single-point, single-injector electronic fuel injection system incorporating the present invention; FIG. 2 is a diagrammatic view of a portion of the system of FIG. 1 that is pertinent for an understanding of the operation of the present inven...
High injection pressures, up to 1500 bar, are achieved by a 7:1 pressure intensification between an engine oil hydraulic circuit and the fuel in the injector (Figure 10.12). A high-pressure oil pump, driven by the engine, raises the system’s oil pressure from typical engine operating levels...
Looking at the wiring diagram makes it look like grounding the test light at the body would essentially short the circuit. Maybe a test light between the positive and negative terminals on the injector harness would serve best- and if it flashes we know the ECU output is good as well?
To simplify reliable detection of operating faults in a control unit for operating an electrical component (for example, a fuel injector), an end stage is provided on the output sid
FIG. 3 shows an hydraulic circuit diagram of the coupler of fuel injector1of FIG. 1. Master piston14and slave piston19are represented in a schematized form as pistons acting on pressure chamber42arranged between them. In order to make it easier to find the components that correspond to the...
FIG. 1A is a circuit diagram showing an injector drive circuit of a fuel injection system according to an embodiment of the present invention; FIG. 1B is a time chart of drive current waveforms of two injectors of the fuel injection system for describing an overlap injection operation of the...