Diesel plant fitting

25/06/2025

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22/05/2025

20/09/2023

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10/12/2022

Transmission of power using interconnected devices from one point to another is called power transmission. Mechanical, electric, hydrodynamic, hydromechanical, and hydrostatic transmission are some categories of power transmission. This article included the topic hydrostatic transmission. But, a few details regarding other power transmission methods are also listed below.

Mechanical Transmission: These type of transmission system uses shafts, gears, torque converters, chains and belts for converting mechanical energy to kinetic energy. Transmission of power from an engine to the wheels of an automotive is an application.

Electric Transmission: In Electric transmission, an electric generator is used for converting mechanical energy to electric and with an electric motor this is converted back to mechanical energy. Electric transmission occurs in transformers.

Hydrodynamic Transmission: In hydrodynamic transmission, a hydrodynamic pump and hydrodynamic motor are connected together. The power generation is the result of the change in fluid velocity as it passes through the channel. An automatic car is one of the applications of hydrodynamic transmission.

Hydromechanical Transmission: A hydromechanical transmission uses a power split scheme for improving the efficiency of gearboxes and for providing flexibility. This transmission method converts the input energy to both mechanical and hydrostatic energy and is suitable for heavy-duty applications.

Now, we can move on to hydrostatic transmission. What is a hydrostatic transmission? Simply, it is a hydraulic system where the hydraulic pump or an accumulator will drive the motor using the fluid passing through flexible hoses. In hydrostatic transmission, gears are not required for converting rotating mechanical energy from one source to another. Because, when the displacement of pump and motor are fixed, then hydrostatic transmission itself will act as a gearbox.

24/03/2022

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11/05/2021

The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to the mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas).

Diesel engines work by compressing only the air. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites spontaneously. With the fuel being injected into the air just before combustion, the dispersion of the fuel is uneven; this is called a heterogeneous air-fuel mixture. The torque a diesel engine produces is controlled by manipulating the air-fuel ratio (λ); instead of throttling the intake air, the diesel engine relies on altering the amount of fuel that is injected, and the air-fuel ratio is usually high.

The diesel engine has the highest thermal efficiency (engine efficiency) of any practical internal or external combustion engine due to its very high expansion ratio and inherent lean burn which enables heat dissipation by the excess air. A small efficiency loss is also avoided compared with non-direct-injection gasoline engines since unburned fuel is not present during valve overlap and therefore no fuel goes directly from the intake/injection to the exhaust. Low-speed diesel engines (as used in ships and other applications where overall engine weight is relatively unimportant) can reach effective efficiencies of up to 55%.[1]

Diesel engines may be designed as either two-stroke or four-stroke cycles. They were originally used as a more efficient replacement for stationary steam engines. Since the 1910s, they have been used in submarines and ships. Use in locomotives, trucks, heavy