In this article we will discuss about the compression ignition engines:- 1. Introduction to Compression Ignition Engines 2. Operation of C.I Engine 3. Fuel Pump and Injector 4. Normal Combustion 5. Combustion Chambers. Contents: Introduction to Compression Ignition Engines Operation of C.I Engine Fuel Pump and Injector Used in C.I Engines Normal Combustion in C.I. Engine Combustion Chambers in C.I [...]
On the basis of the actual data available for the engine working, we can find the ideal cycle work and its efficiency. The actual work produced or developed in the engine cylinder will be less than the ideal work calculated from the ideal cycle. The amount of actual work obtained depends upon where it is measured. In Fig. 25.1, for [...]
Fuel Supply System in Diesel Engine! Introduction to Fuel Supply System for CI Engines: The fuel supply system of a diesel engine can be called as the heart of the engine, since the engine performance directly depends upon the proper functioning of this system—which must supply, meter, inject and atomize the fuel. Fuel injection systems are manufactured with great accuracy, [...]
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 Carburettors:- 1. Introduction to Carburettor 2. Factors Affecting Carburettors 3. Carburettor Types 4. Simple Carburettor 5. Solex Carburettor 6. Carter Carburettor 7. Carburettor Calculations. Contents: Introduction to Carburettor Factors Affecting Carburettors Carburettor Types Simple Carburettor Solex Carburettor Carter Carburettor Carburettor Calculations 1. Introduction to Carburettor: In SI engines, highly volatile fuel like petrol, [...]
The dynamometers that come under this category are: 1. The Prony Brake Dynamometers 2. The Rope-Brake Dynamometer 3. Eddy Current Dynamometer 4. The Electric Dynamometer 5. Swinging Field D.C. Dynamometer 6. Hydraulic Dynamometer. Type # 1. The Prony Brake Dynamometers: A simple type, known as the Prony brake is shown in Fig. 25.7. It consists of two blocks of wood, [...]
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 [...]
In this article we will discuss about:- 1. Introduction to Ignition Systems 2. Ignition System Types 3. Electronic Ignition System. Introduction to Ignition Systems: We know that in case of Internal Combustion (IC) engines, combustion of air and fuel takes place inside the engine cylinder and the products of combustion expand to produce reciprocating motion of the piston. This reciprocating [...]
The actual performance of the engine is the most important factor to the user of the engine. Indicator cards may be taken that, together with the fuel consumption, reveal much more about the power and efficiency of the engine. Tests on the engines are generally carried out either at constant speed or at variable speed. Tests at variable speed are [...]