What is a car hood
Automotive cover , also known as the hood, is an openable cover on the front engine of a vehicle, its main function is to seal the engine, isolate the engine noise and heat, and protect the engine and its surface paint. The hood is usually made of rubber foam and aluminum foil materials, which not only reduce engine noise, but also isolate the heat generated when the engine is working to prevent the paint on the hood surface from aging.
structure
The structure of the cover is usually composed of an outer plate, an inner plate and a thermal insulation material. The inner plate plays a role in enhancing rigidity, and its geometry is selected by the manufacturer, mostly in the form of skeleton. There is insulation sandwiched between the outer plate and the inner plate to insulate the engine from heat and noise.
Opening mode
The opening mode of the machine cover is mostly turned backward, and a few are turned forward. When opening, find the engine cover switch in the cockpit (usually located under the steering wheel or on the left side of the driver's seat), pull the switch, and lift the auxiliary clamp handle in the center of the front of the cover with your hand to release the safety buckle. If the vehicle has a support rod, put it into the support notch; If there is no support rod, manual support is not required.
Closing mode
When closing the cover, it is necessary to slowly close it down by hand, remove the early resistance of the gas support rod, and then let it fall freely and lock. Finally, lift up gently to check that it is closed and locked.
Care and maintenance
During maintenance and maintenance, it is necessary to cover the body with a soft cloth when opening the cover to prevent damage to the finish paint, remove the windshield washer nozzle and hose, and mark the hinge position for installation. Disassembly and installation should be carried out in the opposite order to ensure that the gaps are evenly matched.
Material and function
The material of the machine cover is mainly resin, aluminum alloy, titanium alloy and steel. The resin material has a impact rebound effect and protects the bilge parts during small impacts. In addition, the cover can also dust and prevent pollution to protect the normal operation of the engine.
The main role of the car cover (hood) includes the following aspects :
Air diversion : The shape design of the hood can effectively adjust the flow direction of the air relative to the car, reduce the impact of air on the vehicle, thereby reducing air resistance and improving driving stability .
Protect the engine and surrounding components : the hood can protect the engine, circuit, oil circuit, brake system and transmission system and other important components, to prevent impact, corrosion, rain and electrical interference and other adverse effects, to ensure the normal work of the vehicle .
Heat and noise : the hood prevents moisture, dust and other pollutants from invading the engine room, and assists the cooling device to remove engine heat, regulate engine temperature, and isolate engine noise to improve the comfort of the driving environment .
enhance the aesthetic value of vehicles : the appearance design of the hood is not only practical, but also can add a touch of elegance to the vehicle and improve the overall visual beauty .
Design differences of different types of automobile covers and their effects on performance :
Streamlined : The streamlined hood design minimizes air resistance, improving fuel economy and driving efficiency. This design is commonly seen in high-performance sports cars and racing cars .
transparent design : The hood of some modified cars is made of transparent material, which can show the internal structure of the engine and increase the visual effect and personalization of the vehicle .
Car cover care and maintenance recommendations :
Periodic inspection : Periodically check the seal and integrity of the hood to ensure that it effectively protects the engine and surrounding components.
Cleaning and maintenance : Keep the hood clean to prevent dust and dirt accumulation, affecting heat dissipation and air diversion effect.
anti-rust treatment : appropriate anti-rust treatment of the hood to extend its service life .
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