The working principle of the car water sprayer
The car water sprayer (usually referring to the reservoir) is a container for storing the cleaning fluid. Its working principle relies on the coordinated operation of the entire water spraying system. The water sprayer does not directly generate the spraying power but serves as the "ammunition depot" of the system to provide the cleaning fluid.
When the driver operates the water sprayer switch, the system is activated, and the core power component - the water pump (usually an electric water pump) is activated. The water pump draws the cleaning fluid from the water sprayer and pressurizes it through centrifugal force or mechanical means.
The pressurized cleaning fluid is transported through the water pipes to the nozzles installed on the windshield and other cleaning areas. The nozzles are designed with small holes or gaps, allowing the cleaning fluid to be sprayed in a specific form (such as fan-shaped or mist-like) precisely to achieve the cleaning purpose.
The entire process follows the principle of "spraying water first, then scraping". The water spraying system is often linked with the wiper to reduce dry friction and improve cleaning efficiency.
The car water sprayer, also known as the water storage tank, water sprayer, or water tank bottle, is a dedicated container for storing the glass water cleaning fluid on the car.
Its main functions are to provide cleaning fluid for the car's windshield cleaning system, ensuring the driver has a clear view of the road. Specific functions and effects include:
Cleaning the windshield: When the driver operates the water sprayer button, the glass water in the water sprayer will be pumped out by the water pump, and sprayed through the nozzles onto the front windshield (sometimes also including the rear windshield and rearview mirrors), working in conjunction with the wiper to effectively remove dust, stains, insect debris, etc. from the glass surface.
Ensuring driving safety: In rainy weather, dusty weather, or during long-distance driving, keeping the windshield clean is crucial for timely observation of road conditions, traffic signs, and other vehicles, significantly reducing the risk of accidents.
Auxiliary functions: High-quality glass water usually contains alcohol, ethylene glycol, etc., in addition to cleaning, it also has anti-freezing (preventing ice formation in winter), anti-fog, lubricating (reducing the wear of the wiper), and anti-static functions.
The water sprayer is usually located in the engine compartment, and its lid will have an icon of the water sprayer to distinguish it from the coolant storage tank (usually marked as "Coolant" or radiator pattern).
Car water sprayer failure to spray water is a common problem. It is usually caused by the following reasons and can be checked in order:
Water shortage in the water sprayer: This is the most common reason. Please open the hood and check the water level (water sprayer) of the glass water. If it is below the minimum level, add the appropriate specification of glass water.
Nozzle blockage: Dust, impurities, or water quality issues may cause the nozzle holes to be clogged. You can try gently unclogging the nozzle holes with a fine needle or toothpick, be careful not to damage the nozzle.
Water pump failure or motor burnout: If there is no "buzzing" sound from the water pump when pressing the water sprayer switch, it may be that the water pump motor is damaged or its fuse is blown. Check the relevant fuses in the vehicle fuse box. If normal, it is recommended to have the water pump inspected at a professional repair point.
Pipe problem: Check if the water supply pipe from the water sprayer to the nozzle is loose, aged, or cracked. Leaking or blockage of the pipe will result in insufficient water pressure or no water supply.
Insufficient air pressure or poor sealing: If the water sprayer lid is not tightened, the tank is damaged, or the internal sealing ring is aging, it will cause the system to be unable to establish sufficient pressure. Ensure that the lid is sealed properly, and replace the sealing ring or the entire water sprayer if necessary.
Glass water freezing: In cold seasons, if non-frost-proof glass water is used, the liquid may freeze, blocking the pipes or damaging the water pump. Replace with a frost-proof glass water suitable for the lowest temperature in the area.
If the above basic checks cannot solve the problem, it is recommended to send the vehicle to a professional repair facility for system diagnosis to avoid delaying driving safety.
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