Connecting Rod

The part in an internal combustion engine that connects the piston to the crankshaft. It changes reciprocating motion of the piston into rotary motion of the crankshaft or vice versa.


The conrod mass is mc
The effective mass at the gudgeon pin end is

The effective mass at the crankpin or big end is

Connecting Rod Bearing

The bearing located in the large end of the connecting rod by which it is attached to the crankshaft.

Length

As the length between the big and little ends is increased so the side forces on the piston decrease. Overall the effect is the engine efficiency increases as the conrod length is increased.

Little End

The gudgeon pin end, the part of the conrod that fits to the piston.

Piston Pin

A pin that rests in two bored holes in the piston and passes through the eye of the connecting rod, to join the two together flexibly.

See also: Big End, Crank, Crankshaft, Internal Combustion Engine.

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Subjects: Engines