What is lubrication system? Types of lubrication systems.

In this system, A small quantity of lubricating oil is mixed with a fuel (mostly gasoline). The oil and fuel mixture is introduced through the carburetor. The gasoline is vaporized and oil which is in the form of mist enters the cylinder via the crank base. The droplets of oil strike the crank base, lubricate the main and connecting rod bearings and the rest of the oil lubricates the piston, piston rings and cylinder. The system is preferred in two stroke engines where crank base lubrication is not required. In a two-stroke engine, the charge is partially compressed in a crank base, so it is not possible to have the oil in the crank base.

lubrication system

The various advantages are:

No oil changes and reduced maintenance requirements

Reduced lubricant consumption (up to 70 percent compared to sump lubrication)

Lower friction and reduced bearing temperatures

Mist delivery pressure blocks entrance of contaminants

Less wear and increased life of machine elements

Lower capital costs

This system is simple, low cost and maintenance free because it does not require any oil pump, filter, etc. However, it has certain serious disadvantages.

2. Wet-sump lubrication system:


  1. shyam sundar February 3, 2018
  2. Rsj Kumara February 3, 2018
  3. Sadeepa hansans March 5, 2018

Add Comment