Skip to main content

Crankshaft types

CRANKSHAFT TYPES :

Crankshaft can be of four types :-

a. Fully built crankshaft:- Various parts  of this crankshaft is shrink fitted .

b. Semi-built crankshaft:- Various parts such as crank throw and pin are of single piece case.

c. Welded crankshaft:- webs , crankpin and half journals are welded together.

d. Flanged coupling crankshaft:- these are of two pieces and joined together by flanged coupling .

Source : scribd.com

Comments

Popular posts from this blog

Wire drawing effect

Wire drawing effect : It is erosion or scoring of valve seat and disc material of the valve . Causes : 1. Due to differential pressure across the valve . 2. Thermal and mechanical damages . Effects : Valve is unable to isolate the line and fails in sealing . Gas and liquid will leak from the wire and scratch like groove .

Cross and loop scavenging Disadvantage

Cross scavenging Disadvantage 1. It requires longer  piston skirt to prevent exhaust gas and air leaks from the ports when piston is at TDC . Loop scavenging Disadvantage 1. Both exhaust port and scavenge port are at the adjacent side of the liner which causes temperature differential problem for the liner material . Hence , we are using mostly the uniflow scavenging which is having very lesser mixing and better scavenging efficiency. Source : DA Taylor