Reciprocating To Rotational Piston Engine

Reciprocating To Rotational Piston Engine

4 Posts

  • Wht transfers the reciprocating action of a piston engine to the rotational comonent…..(1)piston…..(2)the camshaft….(3)connecting road…..(4)crank shaft….
    According to me its crankshaft but marked answer is 3 in pully….. So wht will be right ans
  • piston is the one that reciprocates up and down in a cylinder, crank shaft is the one that rotates, now there has to be a thing that transfers the reciprocating motion (of the piston) into circulating motion (of the crankshaft), the connecting rod does the job…
  • the device which converts reciprocating motion to rotatary motion is crankshaft. that is infact the definition of crankshaft.check the link
    http://en.wikipedia.org/wiki/Crankshaft
    u have to remember that even con rods have reciprocating motion. it is the “crankpins” whose axis is offset from that of crank which converts the linear motion to rotary motion.
    also,we use the camshaft for the opposite function,convert rotary motion to linear.same principle,different uses.
  • if u do a little analysis, a reciprocating motion is of no importance to any machine cause the only thing we are interested in is Circular motion, which then can be used either to drive a propeller (as in the case of an aircraft) or to a wheel ( as in the case of an automobile),now if u look at the dictionary meaning of Crank u wud get the things clear in a single attempt.. , and as the reciprocating engines are the most cheapest hence they find a great deal of application in small aircrafts… dont get confused… try to make things simple…. now as per the doubt.. the crankshaft is never directly connected to the propeller, it goes through a gear box and then to the propeller flange or hub…so the only means of converting a reciprocating motion into a circular motion is a Connecting Rod and not a Crank Shaft..
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