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DTS-i and ExhausTEC technologies used in bikes by Bajaj Auto

What is DTSi? The DTSi (Digital Twin Spark ignition) technology from Bajaj could potentially revolutionise motorcycling in the country. The company may well want to replicate the technology in its other engines as well. This technology, which is also being patented by Bajaj Auto, boosts the performance of the engine, while simultaneously cutting emissions. The DTSi technology incorporates twin sparkplugs at either ends of the combustion chamber for faster and better combustion. Single sparkplug meant slower burning of the air-fuel mixture and sub-optimal combustion chamber characteristics. This is the heart of the new technology from Bajaj. But, its benefits are fully realised only after it is combined with a computerised direct ignition (CDI) system and new generation throttle response system. The digital CDI in the new Pulsar, which features an advanced eight-bit microprocessor handles the spark delivery. The programmed chip's memory contains the optimum ignition timing for any g

Double Hooke's Type CV Joint

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Double Hooke's Type CV Joint One method of obtaining very near constant velocity characteristics is to position two Hooke's joints back to back so that their yoke arms remain in line with one another (Fig. 26.12).  Fig. 26.12. Double Hooke's type constant velocity joint. After assembly, both pairs of outer yoke arms must be at right angles to the arms of the central double yoke member. This double joint combination can be considered in two stages. The first stage hinges the drive yoke and driven central double yoke together, and the second stage links the central double yoke (now drive member) to the driven final output yoke. Consequently, the second stage drive half of the central double yoke is placed a quarter of a revolution out of phase with the first stage drive yoke (Fig. 26.13). Fig. 26.13. Double Hooke's type joint shown in two positions 90 degrees out of phase. Therefore, if the input and output shafts are inclined to each other and the first stage driven cent

de-Dion Drive

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de-Dion Drive The de-Dion axle is often considered as the halfway stage between the normal axle and independent suspension. This layout provides many of the advantages of the independent suspension, but the system is not classed as independent, as the rear wheels are still linked by an axle tube. In the basic arrangement illustrated in Fig. 26.33, laminated springs are mounted on the frame by a 'fixed' pivot at the front and a swinging shackle at the rear. To support the wheel on a stub axle shaft, each spring is equipped with a hub mounting, which is rigid­ly connected to a tubular axle beam. The final-drive unit, which is bolted to a cross-member of the frame, transfers the drive to road wheels through two universally jointed shafts.  The main propeller shaft is fitted with a universal joint at each end to allow for flexing of the Fig. 26.33. de-Dion drive. frame. In this design, the torque reaction of the final-drive casing is absorbed by the frame, and the driving thrust is

Differential Lock

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Differential Lock In a two-wheel drive vehicle if one driving wheel loses adhesion, the propelling force is considerably reduced. This results in the immobilization of the vehicle so that the differential action becomes undesirable on the vehicles designed to operate over poor surfaces. This action can be prevented by locking together any two individual units of a differential. One such arrangement is illustrated in Fig. 26.45. A sliding dog clutch member is splined to a differential sun wheel, which engages with dog teeth formed on the cage of the differential. The clutch is engaged by means of a fork, which can be moved by a lever fitted on the outside of the axle. When engaged, the sun wheel, and hence the rear wheel connected to this sun gear, is made to turn at the same speed as the cage. Locking one sun gear to the cage in this way ensures that the other sun gear also turns at the same speed. Fig. 26.45. Differential lock

v-2 rocket drawing

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V-2 rocket engine drawing showing the different stages of the air missile.

DEAD SEA

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DEAD SEA DEAD SEA we heard this name that it is a sea studied in our childhood days. This is located in between the Africa and gulf of Persia. Scientists are still puzzled over the geological factor that created the remarkable body of water known as the sea, which lies further beneath sea level than any other spot on earth. This extremely dense and saline sea, which has a far greater concentration of minerals than any of the oceans, and is unable to support any life form, is the source of life giving properties to all who choose to bathe in it. Floating on the sea is not just fun, it relaxes the body and does the skin and the joints a world of god. Everybody can float in its water as its saline water has a high density that keeps bathers buoyant [ie; able to float]. Although called the Dead Sea, this sea and the whole region on its shore is very much alining. The Dead Sea lies 417 m [1373 feet] below sea level at the lowest point on the earth’s surface. It is a part of the Syri

Differential

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Differential When both rear wheels are connected to a common driving shaft rapid wear of\rear tyre, and difficulty in steering from the straight-ahead position are soon experienced. It can be seen in Fig. 26.43 that the outer wheel must travel a greater distance than the inner wheels during cornering of the vehicle. Hence, if the wheels are interconnected, the tyres have to 'scrub' over the road surface and tend to keep the vehicle moving straight ahead. These problems can be minimized by driving one wheel and allowing the other to run free. But this provides unbalanced driving thrust and unequal cornering speeds due to which the arrangement was not accepted. The problem was solved in 1827 by Pequeur of France who invented the differential. This mechanism rotates the wheels at different speeds, while maintaining a drive to both wheels. Example 26.4. The steering set of a, vehicle provides a turning-circle radius of 6.6 m with a wheel-track width of 1.2 m. The effective road whe

Dum Maro Dum [2011]

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Dum Maro Dum [2011] Cast & Crew :: Abhishek Bachchan, Aditya Pancholi, Bipasha Basu, Rana Daggubati, Deepika Padukone               Music :: Pritam Chakraborty Director :: Rohan Sippy   Producer :: Ramesh Sippy Cassettes & CD's On :: T-Series Music Records                     Ripper :: Team MyMp3rack _:: Track list & Downloads ::_ 01 - Mit Jaaye Gham (Dum Maaro Dum) - Anushka Manchanda DOWNLOAD 02 -Te Amo (Duet) - Ash King & Sunidhi Chauhan DOWNLOAD 03 - Jiyein Kyun - Papon DOWNLOAD 04 - Jaana Hai - Zubin Garg DOWNLOAD 05 - Thayn Thayn - Abhishek Bachchan, Ayush Phukan & Earl DOWNLOAD 06 - Te Amo (Female) - Sunidhi Chauhan DOWNLOAD 07 - Te Amo (Reprise) - Mohit Chauhan DOWNLOAD 08 - Te Amo (Remix) - Sunidhi Chauhan DOWNLOAD CLICK HERE TO DOWNLOAD ALL SONGS IN A SINGLE FILE [ZIP] 

Drivetrain

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Drivetrain A car's drivetrain includes all parts that make or send power to the wheels. For most cars, the drivetrain refers to the engine, transmission, driveshaft, differentials and drive wheels.

Differential

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Differential A differential is part of a transmissions gear system. It allows one wheel to turn faster than the other Car Differential is a small device that helps in splitting the torque of your car’s engine in such a manner, which will allow the wheels to move at different speed. These differentials play an important role while turning of the car. Car differential is a small device, which splits your car engine’s torque in two ways and allows each output to have a spin in different speed. Car differential is found in all modern cars . Differentials are also found in most trucks and all-wheel drive vehicles. All-wheel drive vehicles require a differential between each of their drive wheels set. They also require one in between the front & back wheels too, as the front wheel travels different distances while turning than what is travelled by the rear wheels. Part-time 4-wheel drive systems do not have car differentials between their front & rear wheels. Instead , what you’ll

leevenspark: Diesel: The Fuel of the Future?

leevenspark: Diesel: The Fuel of the Future?

Diesel: The Fuel of the Future?

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THE GIST OF THE STORY ------------------------------------------------------------------------------------------------------------ A new kind of fuel cell runs on diesel instead of hydrogen. A fist-sized fuel cell produces 250 watts of electricity, enough to power yachts and mobile homes. ------------------------------------------------------------------------------------------------------------   Diesel, a fuel once derided as being too loud and too dirty, could be the key to clean, quiet and more environmentally friendly energy. A Norwegian company, Nordic Power Systems, in conjunction with Cal Tech spin-off SAFCell Inc., recently released a new fist-sized, diesel-powered fuel cell that produces 250 watts of electricity, enough to power yachts or mobile homes. Scaled up, the researchers could use the fuel cells to power even more energy-hungry machines. "Diesel is available most places, is not seen as a hazardous fuel in any way, has high power density, and (our

Do's & Don'ts of driving

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  Do's & Don'ts of driving Before you drive... HAVE A CLEAR HEAD Make sure you always have a clear head before deciding to operate a motor vehicle. Alcohol and certain drugs, both illegal and legal, can severely impair your driving skills. Many prescription and over-the-counter medications can cause dangerous drowsiness. Get a good night's rest and don't drive for long stretches without a break. If you are tired, don't risk the safety of yourself and others on the highway by trying to drive. Just as with alcohol--designate a driver or choose another means of transportation such as taxi cab or public transportation. LIMIT DRIVING ALONE WHEN TIRED Driving with someone else in your vehicle can increase your overall alertness. It is well recognized that when driving alone, especially when sleep deprived and at night, your chances of a crash are dramatically increased. READ THE LABELS If you are taking any medications, be sure to read and obey the warning labels. If

Diesel engine

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Diesel engine This type of internal combustion engine was patented in 1892 by the German engineer Rudolph Diesel. It burns fuel oil instead of gasoline and is heavier and more powerful than the gasoline engine. It differs from the gasoline engine in that the ignition of fuel is caused by compression of air in its cylinders instead of by a spark. By varying the amount of fuel injected in the cylinder, the speed and power of the diesel are controlled. Industrial and municipal electric generators, continuously operating pumps such as those used in oil pipelines, and ships, trucks, locomotives, and other such automobiles widely use diesel to power. In an internal combustion engine, the fuel injection system is that which delivers fuel or a fuel-air mixture to the cylinders by means of pressure from a pump. It was originally used in diesel engines because of diesel fuel's greater viscosity and the need to overcome the high pressure of the compressed air in the cylinders. A diesel fuel i

Data mining

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Image via Wikipedia Data mining is really just the next step in the process of analyzing data. Instead of getting queries on standard or user-specified relations, data mining goes a step farther by finding meaningful relationships in data. Relationships that were thought to have not existed, or ones that give a more insightful view of the data. For example, a computer-generated graph may not give the user any insight, however data mining can find trends in the same data that shows the user more precisely what is going on. Using trends that the end-user would have never thought to query the computer about. Without adding any more data, data mining gives a huge increase in the value added by the database. It allows both technical and non-technical users get better answer, allowing them to make a much more informed decision, saving their companies millions of dollars.

Hypersonic Engineering & Design

Hypersonic Engineering & Design is a New York City based engineering and design studio working at the intersection of engineering, architecture, art, and media. CONSULTING SERVICES AND AREAS OF EXPERTISE Machine Design, Automated Systems, and Robotics Aerospace Technologies Hydraulic and Pneumatic Systems Lean Manufacturing Consumer Product Design 3D CAD Design (Solid Works, Pro/E) Structural Analysis & Finite Element Analysis Prototyping, Machining, and Small Run Manufacturing New material enables 'information sorting' at the speed of light The researchers are studying the science of ‘nano plasmonic devices’ whose key components are tiny nano scale metal structures, more than 1000 times smaller than the size of a human hair, that guide and direct light. Information is routinely sorted and directed in different directions to allow computing, internet connections or telephone conversations to take place. At present, however, computers process inf

Drum Brakes

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Drum Brakes 28.5.1. Brake Layouts There are two types of drum brakes, such as externally contracting and internally expand­ing. External contracting brakes are preferred for automatic gearboxes. The internal expanding type, along with a drum, is commonly used in braking systems of vehicles. The drum brakes, used with light vehicles, are hydraulically operated. These brakes are commonly used for the rear wheels to complement a disc system at the front. This disc/drum layout permits the front wheels to undertake more braking effort. In addition, the compatibility of a mechanical hand-brake with a drum brake makes this type an obvious option for rear brakes. Various shoe arrangements in use include : • Leading and trailing shoe (L&T) • Two leading shoe (2LS) • Duo-servo. 28.5.2. Leading and Trailing Shoe (L&T) The layout of a leading and trailing shoe brake is presented in Fig. 28.14. This arrangement uses a pair of shoes pivoted at a common anchor point. The free ends of both sh