Why come up with a gearbox?
Hello. Have you ever wondered why you need a gearbox. If you are interested, read to the end.
When they came up with the gearbox?
In 1887, Mrs. Benz took her three sons, sat on her husband's invention, and went to visit her mother, who lived 80 miles away. It was a risky journey: the device constantly failed, the brakes made of leather belts failed, and the fuel, the role of which was played by the stain remover, from time to time ran out.
Berta Benz informed her husband about all the shortcomings. And the resourceful Mr. Benz set out to develop an auxiliary transmission. It looked like two pulleys of different sizes, mounted on the same axle and connected to the engine by a leather strap. To shift gears, you had to press the lever. Eventually, the pulleys turned into stars and the leather belts into chains.
How the gearbox works
In short, the principle of operation of a traditional manual gearbox is that the gears in its housing can alternately engage in different combinations, forming several gears with different gear ratios.
The need for a gearbox is one of the main disadvantages of an internal combustion engine. The range of speeds of the internal combustion engine in most cases (usually from 500 to several thousand rpm) does not coincide with the speeds of the wheels of the car (usually from 0 to 1800 rpm). Another feature of the internal combustion engine is that the maximum torque values are achieved in a relatively small interval, located approximately halfway between the maximum and minimum speed. The maximum power develops at maximum speed . In addition, the transmission reverses the car and allows for a long time to disconnect the engine and drive wheels, which is required when the engine is idling while the car is moving or in the parking lot.
