Page 95 - Mechanic Diesel - TT

MECHANIC DIESEL - CITS

Study about super charger
• Supercharger: A supercharger is a device that increases the pressure of the air fuel mixture from the carburetor
before it enters the engine. It is connected to the intake manifold between the carburetor and the cylinder. It is
usually driven by an engine through suitable gears and shafts. There are three general types of superchargers:
1 Centrifugal type

2 Pane type
3 Roots Air-Blower Type
• Centrifugal Type Supercharger

It consists of an actuator that rotates at a very high speed, approximately 10,000 rpm. The air-fuel mixture enters
the impeller at the center and moves from the casing to the engine cylinder after passing through the impeller and
diffuser vanes. Due to the high speed of the propeller,
The mixture is forced into the cylinder under high pressure.
• Roots air-blower type supercharger

It has two rotors of epicycloid shape. each rotor one Is connected to the shaft by a key. The two shafts are
connected whether the same
The two rotors rotate at the same speed through shaped gears.

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CITS : Automotive - Mechanic Diesel - Lesson 25 - 28