aici - Liceul Tehnologic Holboca - uCoz

(Teacher) “Yes, thank you Marian. The engine is composed of the engine mechanism
and the systems and auxiliary equipment (the distribution mechanism, the fuel supplier
installation, the ignition installation, the cooler and the ointment installation, the starting
system), necessary to the process of functioning and the starting system. The engine
mechanism, named also the rod-crank mechanism, is the main part of the engine with
internal combustion, with piston. It has the role of transforming the straight-alternative
movement of the piston into a rotating movement of the tortuous shaft. The parts of the
engine mechanism are divided into … Diana?”
(Diana) “The parts of the engine mechanism are divided into fixed parts and mobile
parts Teacher) “And what do we find among the fixed parts, Alexandru?”
(Alexandru)” Among the fixed parts we find : the cylinders, the top carcass and the
bottom carcass.”
(Teacher) “But what are we find among the mobile parts , Elena ?”
(Elena) “The group of mobile parts contains: the tortuous shaft, the fly wheel, the rods,
the pistons with the bolts and segments.”
(Teacher) “Very good! Now, The mechanism of distribution The role: ensures the
opening and the closing of the valves, at moments clearly established, to ensure the
evacuation of the burned gas and the refilling of the cylinder with fresh gas (air with
mixture of air-fuel).
“The installation of fuel supply . What is the role of this installation, George?”
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