Lubrication Systems and Methods of Lubrication used in IC Engine! Introduction to Lubrication in I.C. Engine: The machine parts which have relative motion rub against each other. The rubbing surfaces are never perfectly smooth, even when they are highly polished. If they are observed under a microscope, small depressions and elevations can be seen. These depressions and elevations get interlocked [...]
In this article we will discuss about the Otto Cycle and Diesel Cycle of IC engine. The question arises of these engines, which are most efficient and what are the factors that impose limitation on the maximum efficiency. Sadi Carnot was the first scientist to study this problem and he found that the maximum possible efficiency of an engine, working [...]
The testing of I.C. Engines is the process of assessing the performance and operation of the engine in the efficient manner. There are various parameters which can be measured for testing of I.C. Engines. The testing of the engine is necessary for understanding the efficient operation of the engine and the engine components. The operation of the new engine depends [...]
In this article we will discuss about the carburetor and components of carburetor. The carburetor is provided with additional devices to perform proper operation. The devices used are: 1. Main Metering System 2. Idling System 3. Starting System Or Choke 4. Compensating Jet 5. Acceleration Pump 6. Economizer. Type # 1. Main Metering System: The main metering system consists of [...]
In this article we will discuss about the testing of lubricants for IC engines. The selection of a suitable lubricant for a particular purpose requires knowledge of its properties in the working condition as well as the performance of these properties under conditions of service. Experimental Determination of Lubricant Properties: Properties can be experimentally determined by the following tests: Tests [...]
In this article we will discuss about the working of four stroke and two stroke IC engines. Four Stroke Cycle Engine: Principle: In IC Engines the following events take place in the cyclic order: (1) The quantity of air or mixture of air and fuel must be admitted in the engine cylinder. It is generally known as the charge. (2) [...]
In this article we will discuss about the IC engine:- 1. Notes on Internal Combustion Engine 2. Basic Operation of IC Engine 3. Classification 4. Construction 5. Supercharging 6. Firing Order 7. Methods of Starting IC Engines 8. Governing. Contents: Notes on Internal Combustion Engine Basic Operation of IC Engine Classification of IC Engines Construction of IC Engines Supercharging of [...]
In SI engines the combustion chambers have homogeneous air fuel mixture that is compressed after induction stroke. Towards the end of the compression stroke the spark plug gives out high temperature spark to initiate the ignition process. The spark may have temperature as high as 10,000°C. The combustion spreads from around the spark plug and spreads rapidly across the combustible [...]
In this article we will discuss about:- 1. Introduction to Supercharging 2. Need for Supercharging or Objects of Supercharging 3. Supercharging of Petrol (SI) Engines 4. Supercharging of Diesel (CI) Engines 5. Supercharging Effects on the Engine Performance 6. Supercharging Methods 7. Limitations. Contents: Introduction to Supercharging Need for Supercharging or Objects of Supercharging Supercharging of Petrol (SI) Engines Supercharging [...]
In this article we will discuss about:- 1. Cooling System in IC Engines 2. Lubrication System in IC Engines 3. Governing System. Cooling System in IC Engines: There are mainly 2-types of cooling systems: 1. Air Cooled System: Air cooled system is generally used in small engines say upto 15-20 kW and in aeroplane engines. In this system fins or [...]