Keegy United States - Mechanical Technology: Four Stroke Engine

Four Stroke Engine

Today, internal combustion engines in cars, trucks, motorcycles, aircraft, construction machinery and many others, most commonly use a four-stroke cycle. The four strokes refer to intake, compression, combustion (power) and exhaust strokes that occur during two crankshaft rotations per working cy...

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Mechanic...chnology — February 21

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Carnot Cycle

The Carnot cycle is a particular thermodynamic cycle, modeled on the hypothetical Carnot heat engine, proposed by Nicolas Léonard Sadi Carnot in 1824 and expanded upon by Benoit Paul Émile Clapeyron in the 1830s and 40s.A heat engine acts by transferring energy from a warm region to...

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Mechanic...chnology — February 20

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Diesel Cycle

The Diesel cycle is the thermodynamic cycle which approximates the pressure and volume of the combustion chamber of the Diesel engine, invented by Rudolph Diesel in 1897. It is assumed to have constant pressure during the first part of the "combustion" phase , v2 to v3 in the diagram .M...

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Mechanic...chnology — February 20

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Bending

Bending is a common metalworking technique to process sheet metal. It is usually done by hand on a box and pan brake, or industrially on a brake press or machine brake. Typical products that are made like this are boxes such as electrical enclosures, rectangular ductwork, and some firearm parts ....

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Mechanic...chnology — February 18

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Sheet Gauge Measurment

It is very important for a Mechanical Engineer who work in the field of Sheet Steel, to know about the measurement of SWGStandard Wire Gauge (SWG) Dimensions SWG inches mm 7/0 0.500 12.700 6/0 0.464 11.786 5/0 0.432 10.973 4/0 0.400 10.160 3/0 0.372 9.449 2/0 0.348 8.839 1/0 0....

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Mechanic...chnology — February 18

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Basic Of Steel Rolling Part 5

Biting condition & Roll bite friction coefficient Roll bite friction coefficient = tangential or frictional force/normal forceBitingIn the roll gap are two forces :1. Friction FR : tries to pull through the stock2. Pressure of rolls FN : tries to push back the stockBiting conditionBiting cond...

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Mechanic...chnology — January 20