FIREFIGHTING ROBOT

FIREFIGHTING ROBOT PREPARES TO WALK THROUGH FLAMES: The ultimate Navy Seal may end up being a humanoid robot that can carry heavy equipment, interact with officers and head straight into a face-melting fire without hesitation. Learn about this robot here:http://dne.ws/1pl6H...

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What does this TDI means

We all have seen some of the car has written TDI on their back.What does this TDI means?Here you know-Turbocharged Direct Injection(TDI):Turbocharged Direct Injection or TDI is a design of turbodiesel engines, which feature turbocharging and cylinder-direct fuel injection,developed and produced by the Volkswagen Group.TDI engine uses direct injection,where a fuel injector sprays atomized fuel directly...

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INJECTOR PRESSURE

Q. What is an INJECTOR PRESSURE in heavy vehicles? Why it is used? A. Injector pressure i s the pressure at which the fuel can be injected into the vehicle. In heavy vehicles, injector pressure is 220 kg/cm square. It is used to set up the standard fuel injection in the vehicles. With the help of injector pressure we can calculate the amount of fuel needed, through the following formula:Est. Horsepower...

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Non Circular Gears

Non Circular Gears:-  Noncircular gears generally cost more than competitive components such as linkages and cams. But with the development of modern production methods, such as the computer- controlled gear shaper, cost has gone down considerably. Also, in comparison with linkages, non-circular gears are more compact and balancedand they can be more easily balanced. These are important considerations...

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Gear Design

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Instruments and its uses

Instruments and its uses:- >Katharometer – Device for measuring thermal conductivity >Magnetometer– Comparing strengths of magnetic fields.>Thermometer, thermocouple– Measuring temperature>Thermostat – Device for maintaining constant temperature>Vernier– Device for measuring subdivisions of a scale>Anemometer– Instrument for measuring the speed of wind>Calliper – Instrument...

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Parts of a screw gauge.

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MILLING

MILLING:- Milling is defined as a machining process for removing excess material from a work piece with a rotating cutting tool. Milling processes involves simultaneous rotary cutter and usually linear ( sometimes rotary ) motion of the work,with the work fed against the cutter. It is one of the most commonly used machining processes in industry and machine shops today for machining parts to...

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V-ENGINE

V-ENGINE- A "V" engine, or Vee engine is a common configuration for an internal combustion engine. The cylinders and pistons are aligned, in two separate planes or 'banks', so that they appear to be in a "V" when viewed along the axis of the crankshaft. The Vee configuration generally reduces the overall engine length, height and weight compared to an equivalent inline configuration...

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The difference between disc brakes and drum brakes.

The difference between disc brakes and drum brakes.Disc brakes are generally considered superior to drum brakes for several reasons. First, they dissipate heat better (brakes work by converting motion energy to heat energy). Under severe usage, such as repeated hard stops or riding the brakes down a long incline, disc brakes take longer to lose effectiveness (a condition known as brake fade). Disc...

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Regenerative Braking :

It is used on automobiles to recoup some of the energy that is lost while the vehicle is stopping.This technology is used on hybrid vehicles that use both gas and electricity as sources of power. The energy that is recouped during braking is saved in a storage battery and used later to power the motor whenever the vehicle is using its electric power sourc...

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Piston Ring

A piston ring is a split ring that fits into a groove on the outer diameter of a piston in a reciprocating engine such as an internal combustion engine or steam engine.The three main functions of piston rings in reciprocating engines are :Sealing the combustion chamber so that there is no transfer of gases from the combustion chamber to the crank.Supporting heat transfer from the piston to the cylinder...

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Automotive Braking System

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Fuel Pump

Fuel Pump- It is a device which is used to lifts the fuel from the fuel tank and supplies to the carburetor. PURPOSE- As we know that there are two methods of feeding the fuel to the engine the first one is gravity method and the other one is under pressure. In the gravity system, the fuel tank is located at a higher level, so that the fuel flows to the engine with the force of gravity and in...

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Brayton cycle

The Brayton cycle is a thermodynamic cycle that describes the workings of a constant pressure heat engine. Gas turbine engines and airbreathing jet engines use the Brayton Cycle. Although the Brayton cycle is usually run as an open system (and indeed must be run as such if internal combustion is used), it is conventionally assumed for the purposes of thermodynamic analysis that the exhaust gases...

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Pneumatic Symbols.

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Mechanical Softwares

A list of mechanical engineering software, including computer aided design (CAD) and computer aided manufacturing (CAM) software. AutoCAD  AutoCAD has a user-friendly interface and includes many tools to design complex parts in 2D and 3D. The files can be exported to CAM software for analysis. Autodesk AutoCAD 2007.rar CLICK TO DOWNLOAD Row # Title ...

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Universal joint

Universal joint:-A universal joint, universal coupling, U-joint, Cardan joint, Hardy-Spicer joint, or Hooke's joint is a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction, and is commonly used in shafts that transmit rotary motion. It consists of a pair of hinges located close together, oriented at 90° to each other, connected by a cross shaf...

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Shaping machine

A shaper operates by moving a hardened cutting tool backwards and forwards across the workpiece. On the return stroke of the ram the tool is lifted clear of the workpiece, reducing the cutting action to one direction only.The workpiece mounts on a rigid, box-shaped table in front of the machine. The height of the table can be adjusted to suit this workpiece, and the table can traverse sideways...

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