crankcase Relief valve
Lecture series on Main Engine Explosion
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The internal combustion engine of cylinder diameter of 200 mm or a crankcase volume of 0.6 m3 and above shall be provide with crankcase relief valve of a suitable type with sufficient relief area.
In small engine, cylinder diameter not more than 300mm, crankcase door of which are usually very strong. It may have relief valve or valves at its end.
In large engine, cylinder diameter more than 300mm, require one relief valve to be placed on each crankcase door.
Its free area should not be smaller than 45cm2 and there shall be minimum of 115cm2 /m3 of the gross crankcase volume.
Spring setting for opening pressure is 0.07 bar at an internal pressure and will close when the pressure has been relieved.
The valves open smartly and close positively and rapidly.
Working of deflector
what is crankcase Relief valve
constructions details & working Principle
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