 | PASSABLENESS
OF THE CAR |  |
Mechanisms and internal combustion
engine systems providing its normal work:
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krivoshipno-shatunnyj the mechanism perceives pressure of gases
at their expansion and will transform rectilinear, piston back and
forth motion to a rotary motion of a cranked shaft;
the mechanism serves for a timely admission in the chamber of combustion
of the cylinder of the engine of a necessary charge of a gas mixture
and release from it the fulfilled gases;
The ignition system is intended for transformation of a current
of a low voltage to a power-current for the purpose of formation
of the electric category in the chamber of combustion of the cylinder
of the engine for ignition of a working mix (as ignition of a working
mix in cylinders of diesel engines occurs at the expense of high
degree of compression, the ignition system in them is absent);
The power supply system serves for gas mixture preparation in carburettor
and engines, its givings in chambers of combustion of cylinders
of the engine and removal of products of combustion (in diesel engines
the power supply system provides fuel injection in a kind in cylinders);
The greasing system serves for greasing giving to rubbing surfaces
of details of the engine, heat removal from details, ablation of
the mechanical particles formed as a result of a friction, and engine
oil clearing;
The cooling system is intended for tap of excessive heat from details
of the engine and maintenance of an optimum temperature mode of
the working engine. The system of cooling of the engine can be air
or liquid.
Processes periodically repeating in the cylinder are called as steps.
Steps unite in a running cycle. In four-cycle engines the running
cycle is carried out for four piston strokes.
In the diesel engine sequence of alternation of steps in running
cycles same, as well as in the carburettor. Difference consists
only in degree of compression and a way of ignition of a working
mix.
That the cranked shaft rotated in regular intervals, engines do
multicylinder, and identical steps in different cylinders alternate
in certain sequence.
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