Crank mechanism construction

The purpose of crank mechanism is transforming back-and-forth motion of the pistons to the crankshaft rotation.

Components of crank mechanism can be divide on two groups: stationary and moving.

Moving components of crank mechanism:  pistons, piston rings, piston pins, connecting rods, crankshaft, flywheel.

Crank mechanism construction for Kids

Stationary components of crank mechanism: engine cylinder block, engine head block, sump, cylinders.

Stationary engine parts

Piston – is a component of internal combustion engine. Purpose of piston is to transfer force from expanding gas in the cylinder to the crankshaft through a connecting rod.

Piston construction

Piston rings – is a split ring that fits into a groove on the outer diameter of a piston in an internal combustion engine.

Piston rings construction

Connecting rod – is a member, which connects a piston to a crankshaft in a reciprocating engine.

Connecting rod construction

Crankshaft – is a mechanical part performs a conversion between reciprocating motion piston and connecting rod to rotational motion. When crankshaft defecting is not possible to avoid costly repair, so you can see crankshaft repair cost here.

Crankshaft construction

Flywheel – is a mechanical device designed to efficiently store crankshaft rotational energy.

Flywheel construction

Engine cylinder block – is the structure, which contains the cylinders, and other parts, of an internal combustion engine.

Cylinder block construction

Engine cylinder head – sits above the cylinders on top of the cylinder block in an engine.

Cylinder – is the central working part of an engine, the space in which a piston travels.

Cylinder construction