Mujtaba Uetian

                 SLIDER CRANK MECHANISM:.

Crank:.: 
A side link which revolves relative to the frame is called a cran

Slider-Crank Mechanism:.
A four-bar linkage with output crank and ground member of infinite length

working:.
A slider crank is most widely used to convert reciprocating  or linear motion to rotary motion or to convert rotary to reciprocating motion.




Dead centers:.
Positions at which slider motion reverses are called dead centers.


Crankshaft:.
When crank and connecting rod are extended in a straight line and the slider is at its maximum distance from the axis of the crankshaft,the position is top dead center (TDC); when the slider is at its minimum distance from the axis of the crankshaft, the position is bottom dead center. 

Appliction.:.                                                                                                                                                                                                                                             
The slider crank mechanism is used in internal combustion engines.                                                              
                   
Block feeder
                                              One interesting application of slider-crank is the block feeder. 
                                                                                  
Crank and piston

                                 You can also use the slider as the input link and the crank as the output link. In this case, the mechanism transfers translational motion into rotary motion. The pistons and crank in an internal combustion engine are an example of this type of mechanism.