Mechanical Engineering Blog | Portal for Mechanical Engineers

Classification of gears can be done according to the relative position of the axes of revolution into three types. They are: 1. Gears for Parallel shafts 1.1 Spur Gears 1.2 Helical Gears 1.3 Herringbone Gears 1.4 Rack and Pinion 2. Gears for Intersecting Sha…

Whenever the tool is not performing a machining operation satisfactorily, it is assumed that the tool has been failed. Normally, when the tool fails, it is reground to sharpen it again, but for throwaway-type tools, it is discarded and a new tool tip is used. Although…

There are various kinds of helmets, designed for different activities and levels of protection to human head, jaw, and chin. various helmets Type of Helmet Main purpose use Key feature Full-face helmet Motorcy…

The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. The Kaplan turbine is a propeller-type water turbine that has adjustable blades. It combines automatically adjusted propeller blades w…

There are many theories of fatigue; I have written briefly about three of them: the Orowan theory, the fatigue limit theory, and Wood’s theory. 1. Orowan Theory: Orowan theory considers the metal to contain small, weak regions. Slip occurs readily along these regio…

Science is a systematized body of knowledge about any department of nature, internal or external to man. The energy science deals with the laws, rules, scientific principles, characteristics, units, measurements, processes etc. about various forms of energy and energy…

Common Rail Direct Injection (CRDI) is an advanced fuel injection technology, most commonly referred to as diesel engines. This is very similar to the technology used in petrol engines and the same is differentiated by classifying it as gasoline direct injection (GDI)…