Main Engine Exhaust Valve #marineengine #exhaustvalve

The Main Engine Exhaust valve works under stress and in a high-temperature environment. The exhaust valves are fitted in a separate casing which allows the exhaust valve to be opened and overhauled without removing the cylinder head.

The Construction of the exhaust valve is done using high-temperature resistant alloys of steel having anti-corrosive and high-stress absorption properties. Marine engine exhaust valve is an integral part of the main engine and failure of any one of the exhaust valve may result in halting the operation of the whole engine and will bring the ship in no propulsion power condition. It is important for marine engineers to understand the construction and working or marine engine exhaust valves for efficient engine operation.

The operating system has been evolved from mechanical (rocker arm) to the hydraulic system, making it more reliable and long-lasting. This video shows the main engine exhaust valve working animation including its construction.

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Video Credit - @hake_lee (instagram)
C/E Maksym Veshnevetskyi

[ulascancakmak]

your videos are very useful please continue to upload.we learn a lot about our profession from your videos

[durkostren]

Great work. Understood very well! Thank you!

[fernandohurtadop.]

Gracias mil, muy buena explicacion y didactico sobretodo.THANKS A LOT.

[marineworld]

I have been seeing yours video, this video is fabulous. I request you to make video on cam less operated exhaust valve.. hope you will do⚓

[rexterdoydoy]

4:46 how does the damping valve helps prevent hammering ?

[bykrb]

This videos help me so much! thanks!!!

[adarshsingh]

Please make a complete video on boilers

[ritikrajsoni]

How do we know that the exh valve is rotating??

[kvsalahuddin]

What is meant by overhauling exhaust valve?..When and how it is done?

[NAVEENKUMAR-frbe]

Hello sir, how the hydraulic oil will come out from the valve after push the spindle (after open the valve)...

[verminer]

What does it mean by damping and what what does the damping pin do, what did it mean by stops knocking?? Please answer

[aparnamanjrekar]

Dear All, can somebody please advise on below incident .Upon leaving anchorage, vessel have reported ME slowdown and upon investigation (air spring tightness test). It was discovered that the fault was due to a leak in the air piston, this is the second failure in 2 days. So, vessel have pulled 2 exhaust valves in the past 2 days, investigations on this matter are ongoing.
The lab reports for fuel and lube analysis are normal. The Main Engine Make & Model is MAN B&W 6S50 MC, 10996 HP.

[shipsailorsureshbishnoi]

Please make a video on VIT AND SUPER VIT.

[ksudhan]

Why do need hydraulic system to activate cam ? Likes a normal ic engine we can activate cam by crank right?

[Flamingosstufff]

Why we need to close spring air valve when stopping LO pump?

[vaibhavtandon]

really nice doubt am having that what is mean by possitive closing of valve in this?

[karthikeyanradhakrishnan]

Where will be the throttle valve located for bleeding. I'm referring to the word virtual tappet. If so., the bleed will be continuous and very small quantity. And is the drain of the oil is open always allowing some oil to go out at the same time of building up the hydraulic pressure.

[kenikabilanfernando]

If sir pressure goes 2bar what we can do in engine running situation

[sanjaychauhan]

Agr valve cylinder head me fas gya h kaise nikale

[pradipnandy]

If the engine is stop that time all exust valve in closed position?