1
What is?
is the power transmission system of a reciprocating internal combustion engine. Crank drive moving the main portion of the engine operating cycle to achieve complete conversion of energy. In the power stroke, the piston reciprocates thermal energy generated by the combustion of the fuel will, by the crankshaft rotary motion is converted to mechanical energy, the external output power; in the other stroke, rely on the inertia of the crank and flywheel rotation, up and down movement of the piston rod driven by for the next do work to create the conditions.
2
Function
Function
crank drive is to provide a combustion space, the action of gas produced after combustion of the fuel pressure in the expansion piston crown into rotation of the crankshaft torque, continuous output power.
(1) the pressure of the gas becomes a crankshaft torque.
(2) The reciprocation of the piston becomes rotational motion of the crankshaft.
(3) The combustion force acting on the piston crown into torque of the crankshaft to the mechanical energy output to a machine.
3
Composition
by a crank and connecting rod mechanism body group, the group of three parts of the piston rod, a crankshaft flywheel group consisting.
(1) Body group: a cylinder block, cylinder head gasket, cylinder head, crankcase, oil pan and the cylinder liner
(2) a piston rod Group: piston, piston rings, piston pin , link
(3) a crankshaft flywheel component: a crankshaft, flywheel torsional vibration damper, the balancing shaft
