MAINTENANCE MANUAL OF ENGINE
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2. Crank-link mechanism
2.1. Operating principle
Function:
The crank-link mechanism is the transmission
mechanism used to realize the duty cycle of the
combustion engine and complete energy conversion,
as well as transmit the power and change the mode
of motion. During operating, the crank-link mecha-
nism converts the reciprocating motion of the piston
to the rotary motion of the crankshaft in the power
stroke, and outputs the power, and in other three
strokes, i.e., intake stroke, compression stroke and
exhaust stroke, converts the rotary motion of the
crankshaft to the reciprocating motion of the piston.
As a whole, the crank-link mechanism is a
mechanism designed to produce and transmit power
for the engine, and converts thermal energy gener-
ated from combustion of the fuel to mechanical en-
ergy.
Working conditions:
It will withstand high temperature, high pres-
sure, high speed and chemical corrosion action.
Operating principle:
In the power stroke, the piston withstands ex-
pansion pressure exerted by the combustion gas, so
that linear motion of the piston is converted to the
rotary motion of the crankshaft, and output the
power. By relying on the rotary inertia of the
crankshaft and flywheel, the piston is driven by the
connecting rod to move up and down, so as to com-
plete the exhaust, intake and compression strokes
and make a preparation for next power stroke.
A-Piston
B-Connecting rod
C-Crankshaft
D-Flywheel
A
B
C
D
Summary of Contents for KM/4L22
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