What does a crankshaft do?

Answer

A crankshaft converts the linear energy of the pistons into rotational energy in an engine. The rotational motion then transfers through the gearbox to the wheels.

A crankshaft is also referred to as a crank and has four main parts, which are the main journals, the connecting rod journals, the piston assembly and a flywheel in some engines. Other parts include webs, pins, throws and rear main bearing journal.

The main journals are the most significant parts as they act as support points and the center of rotation for the crank. In most crankshaft assemblies, the main journals as well as the connecting rod journals have a hollow construction that helps boost the crank’s torque capability in addition to reducing the total weight of the assembly.

In manual transmission engines, the flywheel is the point at which the engine and the drive train connect. In automatic transmission engines, the connecting point is called a torque converter.

The crankshaft is set in motion when compressed air and fuel ignites, resulting in a powerful force that is exerted on top of the pistons. When the pistons move down into the cylinder, the connecting rods push against the crankshaft.

The crankshaft is designed to move in a rotary motion when the connecting rods apply force to it as opposed to the up and down motion of the pistons and connecting rods.

Q&A Related to "What does a crankshaft do?"
1. Move the tensioner pulley aside to loosen the belts so they can be removed. 2. Loosen the large nut holding the old pulley in place. This nut is often tightened beyond the strength
http://www.ehow.com/how_7899006_install-crankshaft...
Answer It is the cast iron shaft in an internal cumbustion engine which is driven by the pistons in a circular fashion. The shaft in turn transmits power to the transmission or gearbox
http://wiki.answers.com/Q/How+do+you+find+cranksha...
how long does it take? when u should you change? usually takes 5 min on most cars. when? when you have a problem. no need to replace for "service"
http://wiki.answers.com/Q/How_long_to_change_a_cra...
1. Raise the front of the truck and place jack stands under the sub-frame. Lower the truck to rest on the stands. 2. Roll under the truck and look up at the harmonic balancer on the
http://www.ehow.com/how_12229108_locate-crankshaft...
Explore this Topic
The crankshaft is part of an engine that converts reciprocating linear piston motion into rotation. The crankshaft is often connected to the flywheel thus reducing ...
A crankshaft refers to the main rotating shaft in an engine. Thus a crankshaft pulley is a grooved wheel which is attached to the front end of the crankshaft which ...
The purpose of a crankshaft sensor is to monitor the position and rotational speed of the crankshaft. The engine then uses this information from the sensor to ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com