|
 |
|
 |
|
|
|
| |
Contact:Mr.Deng 18929104529 Mr.Zhou 18929169595
Miss Zhang 18929104530
Toll Free: 4000661106
Tel: 076921664818 (16 lines)
Fax: 076921664685
E-mail: ybl_kj@163.com
Website: http://www.dgybl.com
Address: Dongguan City Wanjiang Dafen Industrial Zone sand Kiln Lane 31, Lane ten |
|
|
|
|
|
|
![]() |
| Basic knowledge and the principle of mechanical supercharger | Ever since mankind since the invention of the internal combustion engine, automotive engineers, the pursuit of speed of drivers and car designers are always looking for ways to enhance its power. One way is to build a bigger engine. But the big motor is not always satisfactory, the engine bigger, heavier weight, the higher the manufacturing and maintenance costs. Another method is to improve the general specifications of the engine's efficiency. Can put more air into the combustion chamber to achieve this purpose. More air means more fuel can be injected, but more fuel means more powerful explosive and greater horsepower. Installed supercharger inlet to achieve a good way to enforce. In this article, the wife will explain the concept of mechanical supercharger, working principle and its differences with the turbocharger.
Supercharger Basics: supercharger is to breathe the air pressure above the normal air pressure to the device. Supercharger and turbocharger was like that. In fact, the "Turbo", which is its official name "turbo supercharger" in shorthand. Difference between the two devices is that their energy from different sources. Exhaust turbocharger is with great flow to drive turbines. The mechanical supercharger from the engine crankshaft through the transmission belt or chain driven transmission.
Ordinary four-stroke engine has a dedicated intake stroke. This process has two steps: 1, piston downward movement. 2, create a vacuum. 3, relying on atmospheric pressure air inhalation chamber.
When air is inhaled after the engine, and fuel mixture will form a gas mixture. This mixture can be burned to convert the kinetic energy of this chemical reaction. Spark plug through the air and fuel mixture ignited the gas in the chemical reaction. When the fuel oxidation, it will release a lot of energy. Concentrate produced by this process, the cylinder head, this force will drive the piston, the piston reciprocating motion produced, eventually the momentum will be delivered to the wheels. Inject more fuel to the combustion chamber will have a more powerful explosive combustion. But you can not just add fuel to the engine, because the number of combustion of fuel the need for strict oxygen. After the chemical reaction of this mixture of air and fuel ratio should be controlled at 14:1, which is critical to the effective functioning of the engine. So focus: To inject more fuel, more air must be inhaled. This is the role of mechanical supercharger. Supercharger air compressed by atmospheric pressure to above normal to breathe more air, not by creating a vacuum to draw in air. This can force more air into the engine, resulting in "Pressure." Turbocharged engines will breathe more air, thus inject more fuel to the combustion chamber, engine power will be enhanced. Supercharger average horsepower increased 46% and 31% of the torque. In the higher elevations, will reduce engine performance, where the air density and pressure are relatively low, while the mechanical supercharger to the engine only a higher air pressure in order to ensure optimal functioning state.
Turbochargers use the exhaust combustion to power the compressor, with different, the mechanical supercharger to obtain power directly from the crankshaft. Most of the supercharger drive through a subsidiary with access to power, which wraps around the root drive belt pulley, the pulley is connected to a gear on. The gear will be rotating compressor gear. Compressor rotor can have a variety of design, but its mission is to breathe the air, the air pressure into a smaller space, and into the intake manifold.
For compressed air, mechanical supercharger must spin rapidly, even more than the engine itself is turning even faster. Will take the initiative to do better than the compressor gear big gear, you can make the compressor spin faster. Supercharger speed up to 5-6.5 million per minute to transfer. 50,000 turn the compressor can produce about 41-62 kPa pressure. In particular altitude, high atmospheric pressure that will produce more than 41-62 kPa pressure. The atmospheric pressure at sea level is 1012.8 hPa, so at around 50% more air is pressed into the supercharger engine.
By compressed air becomes hot, which means lower air density, but also reduce the explosion in the swelling of the air. This mixture can not ignite after the spark plug to generate sufficient power. In order to play all the supercharger efficiency, compressed air from the exhaust must be discharged into the intake manifold before it cooled. The emergence of intercooler to solve this problem. Intercooler two basic designs: air-cooled and water cooled. They work similar to the radiator, that allow cooler air or water flow through pipe, take away the heat. When the hot air from the supercharger encounter cooler duct, it would be cool. As the air temperature decreases, its density becomes high, it will enable higher density mixed-gas into the combustion chamber.
(This article reproduced from http://www.dgybl.com) |
| | 【 Views：907 】 【 add time：2010-8-18 9:15:40 】 【 close 】 |
|
|
Liquid pressure cylinde- r series.jpg){kind=small}