What is the working principle of turbocharger?
The turbocharger on a car applies a very similar principle to a piston engine. It uses the exhaust gas to drive a turbine. This spins an air compressor that pushes extra air (and oxygen) into the cylinders, allowing them to burn more fuel each second.
How does a turbocharger increase airflow?
Turbochargers are a type of forced induction system. They compress the air flowing into the engine (see How Car Engines Work for a description of airflow in a normal engine). The advantage of compressing the air is that it lets the engine squeeze more air into a cylinder, and more air means that more fuel can be added.
What are the 3 major components of turbocharger?
At the most basic level, a turbocharger consists of just three major components: the turbine, the compressor, and the bearing system that supports the turbine shaft, connecting the turbine and compressor wheels together.
Which type of turbine is used in turbocharger?
radial flow turbine type
Turbochargers in automotive applications are of the radial flow turbine type. The turbine extracts pressure energy from the exhaust stream and drives a compressor that increases the pressure of the intake air.
What is the rpm of turbocharger?
A turbocharger is a critical component highly customized for the engine. It uses an engine’s exhaust gas to drive the turbine wheel up to 350,000 RPM. The turbine wheel then drives the compressor wheel through a shaft.
What is boost pressure in turbocharger?
Boost is positive pressure created by a turbo or supercharger. It forces more air into the engine. This can be matched with more fuel, to create a bigger bang inside the cylinders – resulting in more power.
What is the function of intercooler?
The intercoolers (Charge Air Coolers) are designed to reduce fuel consumption while increasing the engine power and efficiency. The intercooler’s task is to reduce the temperature of the inlet gas and thus densify the air required which optimises the combustion.
How many RPM is a turbo?
A turbo spins very fast; most peak between 80,000 and 200,000 RPM (using low inertia turbos, 150,000-250,000 RPM) depending on size, weight of the rotating parts, boost pressure developed and compressor design.
What is K value of turbocharger?
Measuring of distance between the rotor shaft end and the flange of bearing cover by blower side is known as K value in Turbocharger. Purpose. In case of thrust bearing worn out, to ensure that rotating impeller does not to touch the stationary blower casing cover.
How do you calculate turbo?
The calculation is simple: Divide the absolute outlet pressure that you think you want (14.7 + boost pressure) by the absolute inlet pressure that the Earth says you can have (14.7) and you’ve got your pressure ratio. Limiting yourself to a reasonable number is the hardest part.
What is the maximum rpm of a turbocharger?
Maximum speed of the turbocharger is 150,000 rpm. A very high pressure ratio of about 4 is secured from medium load at any speed, with this ratio only minimally reducing increasing the speed of the engine above 3,000 rpm. At high load, the maximum speed of the turbocharger is permitted above 1,500 rpm engine speed.
What is turbo wastegate?
What does a wastegate do? The wastegate’s job is to divert excess exhaust gases away from the turbine – controlling the speed of the turbine and preventing it from spinning too fast. By controlling and limiting the speed of the turbine, the wastegate regulates the boost pressure provided by the turbocharger.