What is pulse turbocharging?

Makes full use of the higher pressure and temperature of the exhaust gas during the blow down period. While rapidly opening the exhaust valves, exhaust gas leave the cylinder at high velocity as pressure energy is converted into kinetic energy to create the pressure wave or pulse in exhaust.

What is surging in turbocharger?

Turbocharger surging may be defined as a high pitch vibration of audible level coming from the blower end or compressor end of the turbocharger.

What is constant pressure turbocharging?

A) CONSTANT PRESSURE TURBOCHARGING :- IN THIS SYSTEM, THE EXHAUST BRANCH OR PIPE FROM EACH INDIVIDUAL CYLINDER IS LED INTO A COMMON MANIFOLD. AS THE EXHAUST GAS BLOWS INTO THE MANIFOLD, EDDIES ARE SET UP WHICH HELP DAMP OUT ANY PRESSURE WAVE CAUSED BY THE INFLUX OF THE EXHAUST GAS.

What is axial flow turbocharger?

Axial flow turbochargers are similar to gas turbines and are common in aircraft engines. Axial flow compresses air into increasingly smaller spaces using a series of impeller or axial compressor fans. Axial flow versions are better suited for aircraft because of their large size and heavy weight.

Which turbocharger is used to turbo?

Twin-Scroll Turbo: (Types of Turbocharger) This layout helps in providing a highly efficient delivery of exhaust gas energy to the turbo which results and helps in providing a highly dense and pure air into the cylinder. The higher the amount of energy is sent to the exhaust turbine, higher will be the power generated.

What is Lambda controller?

Lambda controller is used to control the excess fuel injection in the combustion chamber of a marine engine when there is a change in the engine load i.e. during a momentary increase in the engine load. This is done by controlling the two main elements which are responsible for combustion- fuel and air.

What is TCA and TCR turbocharger?

What is TCA and TCR turbocharger? It represents the direction of exhaust input to the turbine blades and air input to the blower side. If the direction is axial (parallel to the turbine Shaft) is called TCA. and if the direction is radial(Perpendicular to the turbine Shaft) is called TCR.

What is difference between radial and axial turbocharger?

Yet axial flow turbochargers are more efficient because the exhaust gas is forced directly against the entire turbine wheel while the radial version’s exhaust flows from the side of the wheel and then around the perimeter of the wheel.

What is Brinelling in turbocharger?

– Static brinelling can occur due to rubbing of bearings caused by vibrations (in the absence of oil) – Oil needs to be renewed at regular intervals. – Finite life of the pump. – Different grade of LO other than system oil will incur additional cost. – Failure of attached pump will cause heavy damage to T/C.

How does a pulse type turbocharger work?

> As you know that pulse type turbochargers are required high velocity pressure pulse waves to rotate the turbine. In Auxiliary Engines exhaust valves rapidly open, exhaust gas leaves the cylinder at a higher velocity in small piping. which hits the turbine blades and make it rotate.

What is turbocharging?

Turbocharging is one kind of supercharging by using exhaust gas turbocharger. In which the energy in the exhaust gas expelled from the engine cylinder is utilized in driven in gas turbine, which is connected to a centrifugal air blower and air is supplied to scavenge air trunk.

Which type of turbocharger is suitable for auxiliary engines?

So pulse type turbocharger is suitable for auxiliary engines > Pulse type turbochargers are highly responsive to change in engine load condition. In auxiliary engines load variation is frequent

What are the causes of noise from turbocharger?

When the discharge volute pressure exceed the pressure built up in the diffuser and the impeller, it produces a back flow of air from discharge to suction and it is characterized by noise and vibration of turbocharger. Incorrect matching of turbocharger to engine. What is exhaust tuning?