Working principle of fuel dispenser
The working principle of a fuel dispenser is a complex and precise process aimed at ensuring safe and accurate delivery of fuel from the storage tank to the car's fuel tank. The following is a detailed analysis of the working principle of the fuel dispenser:
1、 Overall process
The fuel dispenser extracts, filters, and measures the fuel from the underground oil tank through a series of steps, and finally injects it into the car fuel tank. These steps include oil tank pumping, mixing, filtering, metering, and refueling, and the entire process is monitored and controlled by various sensors and control systems of the refueling machine.
2、 Specific steps
Oil tank pumping
The fuel dispenser pumps the fuel from the underground oil tank into the interior of the dispenser through an electric pump.
The fuel dispenser is equipped with a fuel sensing probe to monitor the level of fuel in the underground oil tank. Once the fuel level falls below the safety limit, the pumping process will automatically stop to ensure safety.
stir
The fuel passes through a stirring device inside the fuel dispenser to prevent sediment from settling in the fuel. This step helps maintain fuel uniformity and improve fuel quality.
filter
Filter out impurities and solid particles in the fuel through a filter to ensure the cleanliness of the fuel. Clean fuel helps protect the car engine from damage.
metering
The fuel dispenser is equipped with a measuring device for accurately measuring the amount of fuel added to the car's fuel tank. A measuring device usually consists of a flow sensor and a gauge.
When the oil gun is lifted, the switch signal is sent to the computer device to start the motor and open the solenoid valve. The electric motor drives the pump to suck oil into the pump and pressurize it. The fuel then enters the flow meter and drives the piston to reciprocate. The flowmeter drives the indexing plate in the sensor to generate pulse electrical signals, which are sent to the computer device for calculation and display, realizing the measurement and control of oil delivery volume.
come on.
The metered fuel is injected into the car's fuel tank through an electrostatic transfer hose and a fuel gun. The fuel gun usually has an automatic stop function, which will automatically stop fuel injection when the fuel level reaches the set value to prevent fuel overflow.
3、 Technical features
Electronic counting display: Modern fuel dispensers commonly use electronic counting display devices to make the refueling process more intuitive and accurate.
Safety protection: The fuel dispenser is equipped with various safety protection devices, such as emergency shut-off valves, anti cheating devices, etc., to ensure the safety and compliance of the refueling process.
Intelligent control: Some advanced fuel dispensers also have intelligent control functions, such as automatic recognition of vehicle models, recommended fuel volume, etc., which improve the convenience and personalized service level of refueling.
4、 Related regulations and supervision
Fuel dispensers are measuring instruments that are subject to mandatory national inspection and are included in key management. The market supervision department conducts special metrological supervision and inspection of gas stations every year to promote the lawful and compliant use of fuel dispensers. For the use of unqualified measuring instruments or the destruction of the accuracy of measuring instruments, relevant departments will impose penalties in accordance with the law.
In summary, the working principle of a fuel dispenser is a complex process involving multiple links and components. Through precise measuring devices and control systems, fuel dispensers can ensure the safe and accurate delivery of fuel, providing consumers with convenient and reliable refueling services.
Wenzhou Jiahao Petroleum Machinery Co, Ltd is a professional manufacturer of petroleum machinery products since 2010. The main products are Fuel dispenser components including Automatic Fuel nozzle, Adblue DEF Nozzle, Vapor Recovery Nozzle, Flowmeter and Fuel pumps.
