Airless(or) Solid injection system

In this niethod, the fuel is supplied at high pressure to the combustion chamber in
atdmised state.t This method requires a pump to deliver the fuel at high pressure (150 bar to 300 bar) to the fuel injector.
So, the main components of this system are fuel pump and fuel injector. The fuel pump is operated by a cam which 18 mounted by a cam shah. The power required to operate the cam is taken from the engine crank shaft.This system is further classified according to the location of basic components (fuel pump and fuel injector) and the method used to meter the fuel as

common rail system
Individual pump and nozzle system
Distributor system

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GD&T basics

GD&T Symbols List Flatness Flatness GD&T Flatness is a common symbol that references how flat a surface is regardless of any other datum’s or features. It comes in useful if a feature is to be defined on a drawing that needs to be uniformly flat without tightening any other dimensions on the drawing. The flatness tolerance references two parallel planes (parallel to the surface that it is called out on) that define a zone where the entire reference surface must lie. Straightness Straightness actually has two very different functions in GD&T depending how it is called out. In its normal form or Surface Straightness, is a tolerance that controls the form of a line somewhere on the surface or the feature. Axis Straightness is a tolerance that controls how much curve is allowed in the part’s axis. This is usually called out with an included call to maximum material condition. Both callouts are very different from ea

working of breaking system in automobiles

Definition of automobile brake system Actually, vehicle can be regard as energy conversion device, which transfers the momentum into heat, in other words, which transfers the kinetic energy into thermal energy. The brakes are used to reduce the speed of the vehicle, and the speed of conversion determines the rate of the vehicle slows down.

Flux-cored arc welding

Flux-cored arc welding (FCAW or FCA) is a semi-automatic or automatic arc welding process. FCAW requires a continuously-fed consumable tubular electrode containing a flux and a constant-voltage or, less commonly, a constant-current welding power supply. An externally supplied shielding gas is sometimes used, but often the flux itself is relied upon to generate the necessary protection from the atmosphere, producing both gaseous protection and liquid slag protecting the weld. The process is widely used in construction because of its high welding speed and it portability.

Mechanical

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