China Automobile Industry Wiki-Parts Trade Wiki-Tire Wiki Entries-CNAUTO

Carburetor, precision mechanical device

The carburetor is a mechanical device that mixes a certain proportion of gasoline and air under the vacuum generated by the engine’s operation. As a precision mechanical device, the carburetor uses the kinetic energy of the inhaled air flow to atomize gasoline. Its important role in the engine can be called the “heart” of the engine. The complete device should include starting device, idle device, medium load device, full load device and acceleration device. The carburetor will automatically proportion the corresponding concentration and output the corresponding amount of mixed gas according to the different working conditions of the engine. In order to make the mixed gas mixture evenly mixed, the carburetor also has the function of atomizing the fuel. effect for the machine to operate normally. Classification Carburetors are divided into simple carburetors and complex carburetors. Carburetors can also be divided into downdraft and flat-draft types. Car...

24

3月 27, 2024

Car seat belt，Prevent airbag deployment injuries

Car seat belts are safety devices designed to restrain the occupants during a collision and to prevent secondary collisions between the occupants and the steering wheel and instrument panel, or to prevent the occupants from rushing out of the car during a collision, resulting in death or injury. Car seat belts, also known as seat belts, are a type of passenger restraint device. Car seat belts are recognized as the cheapest and most effective safety devices. Among vehicle equipment, seat belts are mandatory in many countries. Origin Seat belts existed before the invention of automobiles. In 1885, when horse-drawn carriages were commonly used in Europe, seat belts were simply used to prevent passengers from falling off the carriage. By 1910, seat belts began to appear on airplanes. In 1922, sports cars on the racing circuit began to use seat belts. By 1955, Ford cars in the United States began to use seat belts. Generally speaking, the seat belts during this period were ma...

11

3月 27, 2024

Clutch, Transmits engine output power

The clutch is located in the flywheel housing between the engine and the gearbox. The clutch assembly is fixed on the rear plane of the flywheel with screws. The output shaft of the clutch is the input shaft of the gearbox. While the car is driving, the driver can depress or release the clutch pedal as needed to temporarily separate and gradually connect the engine and the transmission to cut off or transmit the power input from the engine to the transmission. The clutch is a common component in mechanical transmission, which can separate or engage the transmission system at any time. Its basic requirements are: smooth joining, rapid and complete separation; easy adjustment and repair; small outer size; small mass; good wear resistance and sufficient heat dissipation capacity; easy and labor-saving operation. Commonly used ones are divided into tooth-embedded and There are two types of friction type. Definition The clutch, commonly known as Jilizi in Hong Kong, comes fro...

5

3月 27, 2024

SUV，Sport utility vehicle

SUV refers to a sports utility vehicle, which is different from an ORV off-road vehicle that can be used on rough terrain; SUV refers to a sports utility vehicle or a suburban utility vehicle, an off-road vehicle that has the space capabilities of a station wagon and is equipped with a cargo truck. Ability models. Features The characteristics of SUV are strong power, off-road capability, spaciousness and comfort, and good cargo and passenger carrying functions. Some people also say that SUV It is the comfort and refinement of a luxury car combined with the nature of an off-road vehicle. SUVs are hybrid descendants of cars and off-road vehicles. Compared with their ancestors, SUVs have greater advantages. The biggest characteristics of off-road vehicles are their strong passing ability and certain cargo-carrying capacity, but their sportiness and comfort are not outstanding. After strengthening these shortcomings of off-road vehicles, they can be called SUVs. It not only ...

1

3月 27, 2024

Airbags, protection systems for passive safety

The electronic airbag system is a passive safety protection system that works in conjunction with seat belts to provide effective anti-collision protection for the occupants. In the event of a car collision, car airbags can reduce the rate of head injuries by 25% and the rate of facial injuries by about 80%. History The airbag was first proposed by Hetrick in August 1953 and obtained the U.S. patent for “automobile buffer safety device”. With the formulation of vehicle safety standards in various countries, the equipment rate of airbags is getting higher and higher. The airbag equipment rate in cars in Europe, the United States, Japan and other countries has reached nearly 100%. Structure It is mainly composed of airbag sensors, anti-collision airbags and electronic control devices. The driver’s side anti-collision airbag is installed in the steering wheel; the passenger’s side anti-collision airbag is usually installed on the dashboard. The airba...

1

3月 27, 2024

Transmission, Gear Transmission

Transmission, also known as gearbox, is a mechanism used to change the speed and torque from the engine. It can fix or change the transmission ratio of the output shaft and input shaft in fixed or stepped gears. The transmission consists of a speed change transmission mechanism and a control mechanism. Some cars also have a power output mechanism. Most of the transmission mechanisms use ordinary gear transmission, and some use planetary gear transmission. Ordinary gear transmission transmission mechanisms generally use slip gears and synchronizers. Classification 1. Stepped transmission Stepped transmissions are the most widely used. It adopts gear transmission and has several fixed transmission ratios. Depending on the type of gear train used, there are two types of axis-fixed transmissions (ordinary transmissions) and axis-rotating transmissions (planetary gear transmissions). The transmission ratio of transmissions for cars and light and medium trucks usually has 3-5 ...

1

3月 27, 2024

Spark plug, Ignites the combustible mixture in the cylinder

The spark plug is an important component of the gasoline engine ignition system. It can introduce high-voltage electricity into the combustion chamber and cause it to jump across the electrode gap to generate sparks, thereby igniting the combustible mixture in the cylinder. It is mainly composed of wiring nut, insulator, wiring screw, center electrode, side electrode and shell. The side electrode is welded on the shell. Introduction The spark plug, commonly known as the burner, is used to discharge the pulsed high-voltage electricity sent from the high-voltage wire (burner wire), breakdown the air between the two electrodes of the spark plug, and generate electric sparks to ignite the mixed gas in the cylinder. The main types are: quasi-type spark plugs, rim-protruding spark plugs, electrode-type spark plugs, seat-type spark plugs, pole-type spark plugs, surface-flash type spark plugs, etc. The spark plug is installed on the side or top of the engine. The early spark plu...

1

3月 27, 2024

Bumper，Safety devices that absorb and mitigate external impact and protect the front and rear of the vehicle body

Car bumpers are safety devices that absorb and slow down external impact forces and protect the front and rear of the car body. Many years ago, the front and rear bumpers of automobiles were stamped from steel plates into channel steel and riveted or welded to the frame longitudinal beams. There was a large gap between the car body and the car body, which looked very unsightly. With the development of the automobile industry and the extensive application of engineering plastics in the automobile industry, automobile bumpers, as an important safety device, are also on the road to innovation. In addition to maintaining their original protective functions, today’s front and rear bumpers of cars must also pursue harmony and unity with the body shape and pursue lightweighting. The front and rear bumpers of cars are made of plastic, which are called plastic bumpers. Generally, the plastic bumper of a car is composed of three parts: outer panel, buffer material and cross ...

2

3月 27, 2024

Wiper, an important accessory installed on the windshield

The wiper is an important accessory installed on the windshield. Its function is to remove rain, snow and dust on the windshield that obstructs the view. Therefore, it plays an important role in driving safety. Overview Wipers generally include vacuum wipers, electric wipers and wipers with electronic control units. The disadvantage of vacuum wipers is that the movement speed of the wiper blade is unstable. When the vacuum degree of the engine is reduced (for example, when the car is climbing a hill), the wiper blade will stop, blurring the driver’s vision. Vacuum wipers were phased out in 1972, replaced by electric wipers. Structure The electric windshield wiper is driven by a motor and generally consists of a wiper arm, wiper blade assembly, rubber brush blade, brush blade support, brush blade holder, wiper arm spindle, wiper base plate, and motor , deceleration mechanism, drive rod system, drive rod hinge, wiper switch and wiper switch knob. Of course, wipers wi...

2

3月 27, 2024

Car Engine, Device That Provides Power To A Car

The automobile engine is the device that provides power for the automobile. It is the heart of the automobile and determines the power, economy, stability and environmental protection of the automobile. According to different power sources, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors and hybrids. Common gasoline engines and diesel engines are reciprocating piston internal combustion engines, which convert the chemical energy of the fuel into the mechanical energy of piston movement and output power to the outside. The gasoline engine has high speed, low mass, low noise, easy starting, and low manufacturing cost; the diesel engine has a large compression ratio, high thermal efficiency, and better economic performance and emission performance than the gasoline engine. History development The engine is the power source of the car. Most automobile engines are thermal energy power devices, referred to as heat engines. Therm...

2

3月 27, 2024

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