The internal combustion engine is an engine An engine is a machine that produces mechanical force and motion from another form of energy . It is also referred to as a prime mover. An automobile makes use of several motors to start the car and drive the car's various pumps – but the power plant that propels the car is called an engine. The term motor was originally used to distinguish the in which the combustion Combustion or burning is the sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat and conversion of chemical species. The release of heat can result in the production of light in the form of either glowing or a flame. Most fuels of interest are organic compounds in the gas, liquid or solid of a fuel Fuel is any material that is burned or altered to obtain energy and to heat or to move objects. Fuel releases its energy either through a chemical reaction means, such as combustion, or nuclear means, such as nuclear fission or nuclear fusion. An important property of a useful fuel is that its energy can be stored to be released only when needed, (generally, fossil fuel Fossil fuels or gas fuels are fuels formed by natural resources such as anaerobic decomposition of buried dead organisms. The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years. These fuels contain a high percentage of carbon and hydrocarbons) occurs with an oxidizer (usually air) in a combustion chamber The hot gases produced by the combustion occupy a far greater volume than the original fuel, thus creating an increase in pressure within the limited volume of the chamber. This pressure can be used to do work, for example, to move a piston on a crankshaft or a turbine disc in a gas turbine. The energy can also be used to produce thrust when. In an internal combustion engine the expansion of the high temperature There are basically two equivalent concepts of temperature, the thermodynamic concept and the statistical physics concept. Since thermodynamics deals entirely with macroscopic measurements, the thermodynamic definition of temperature, first stated by Lord Kelvin, is stated entirely in macroscopically measurable variables. Statistical physics and pressure Pressure is the force per unit area applied in a direction perpendicular to the surface of an object. Gauge pressure is the pressure relative to the local atmospheric or ambient pressure gases, which are produced by the combustion, directly applies force In physics, the concept of force is used to describe how a massive body is affected by acceleration or mechanical stress. Force can also be described by intuitive concepts such as a push or pull that can cause an object with mass to change its velocity , i.e., to accelerate, or which can cause a flexible object to deform. Related concepts to to a movable component of the engine, such as the pistons or turbine blades and by moving it over a distance, generate useful mechanical energy In physics, energy is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Different forms of energy include kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are.[1][2][3][4]
The term internal combustion engine usually refers to an engine in which combustion is intermittent, such as the more familiar four-stroke 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 , and exhaust strokes that occur during two crankshaft rotations per working cycle of the gasoline engine and diesel engine and two-stroke A two-stroke engine is a combustion engine that completes the thermodynamic cycle in two movements of the piston compared to twice that number for a four-stroke engine. This increased efficiency is accomplished by using the beginning of the compression stroke and the end of the combustion stroke to perform simultaneously the intake and exhaust piston engines, along with variants, such as the Wankel rotary engine The Wankel engine is a type of internal combustion engine which uses a rotary design to convert pressure into a rotating motion instead of using reciprocating pistons. Its four-stroke cycle takes place in a space between the inside of an oval-like epitrochoid-shaped housing and a rotor that is similar in shape to a Reuleaux triangle but with sides. A second class of internal combustion engines use continuous combustion: gas turbines A gas turbine, also called a combustion turbine, is a rotary engine that extracts energy from a flow of combustion gas. It has an upstream compressor coupled to a downstream turbine, and a combustion chamber in-between, jet engines A jet engine is a reaction engine that discharges a fast moving jet of fluid to generate thrust in accordance with Newton's laws of motion. This broad definition of jet engines includes turbojets, turbofans, rockets, ramjets, pulse jets and pump-jets. In general, most jet engines are internal combustion engines but non-combusting forms also exist and most rocket engines A rocket engine or simply "rocket" is a jet engine that uses only propellant mass for forming its high speed propulsive jet. Rocket engines are reaction engines and obtain thrust in accordance with Newton's third law. Since they need no external material to form their jet, rocket engines can be used for spacecraft propulsion as well as, each of which are internal combustion engines on the same principle as previously described.[1][2][3][4]
The internal combustion engine (or ICE) is quite different from external combustion engines An external combustion engine is a heat engine where an (internal) working fluid is heated by combustion of an external source, through the engine wall or a heat exchanger. The fluid then, by expanding and acting on the mechanism of the engine produces motion and usable work. The fluid is then cooled, compressed and reused (closed cycle), or (less, such as steam A steam engine is a heat engine that performs mechanical work using steam as its working fluid or Stirling engines A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work, in which the energy is delivered to a working fluid not consisting of, mixed with or contaminated by combustion products. Working fluids can be air, hot water, pressurised water or even liquid sodium, heated in some kind of boiler A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications by fossil fuel, wood-burning, nuclear, solar etc.
A large number of different designs A drawing board is, in its antique form, a kind of multipurpose desk which can be used for any kind of drawing, writing or impromptu sketching on a large sheet of paper or for reading a large format book or other oversized document or for drafting precise technical illustrations. The drawing table used to be a frequent companion to a pedestal desk for ICEs have been developed and built, with a variety of different strengths and weaknesses. Powered by an energy-dense fuel (which is very frequently petrol, a liquid derived from fossil fuels Fossil fuels or gas fuels are fuels formed by natural resources such as anaerobic decomposition of buried dead organisms. The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years. These fuels contain a high percentage of carbon and hydrocarbons) the ICE delivers an excellent power-to-weight ratio Power-to-weight ratio is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. Power-to-weight ratio is a measurement of actual performance of any engine or power sources. It is also used a measure of performance of a vehicle as a whole, with the engine's power output being with few safety or other disadvantages. While there have been and still are many stationary applications, the real strength of internal combustion engines is in mobile applications Transport or transportation is the movement of people and goods from one location to another. Transport is performed by modes, such as air, rail, road, water, cable, pipeline and space. The field can be divided into infrastructure, vehicles, and operations and they dominate as a power supply for cars, aircraft, and boats, from the smallest to the biggest. Only for hand-held power tools do they share part of the market with battery powered devices.
Contents |
Roanoke Times (blog)
Cats often seek refuge inside a car's engine and can be injured or killed by a fan belt. Give the kitty a chance to escape before you warm up your vehicle. ...
and more »
1524px x 2032px | 971.00kB
[source page]
18 16 943K engine car intake wi > 16 Aug 2005 18 16 1 0M engine car intake wi > 16 Aug 2005 18 17 1 0M engine car intake wi > 16 Aug 2005 18 17 866K engine car intake JPG 16 Aug 2005 18 17 971K engine exhaust JPG 16 Aug 2005 18 18 866K engine hoist distrib > 16 Aug 2005 18 18 800K engine hoist exhaust
Mommy
Wed, 20 Jan 2010 00:23:34 GM
This is the latest news confirmed by Zero Pollution Motors, the official dealer of the . car. . They say that the . car. is expected to be available by 2010. Air powered cars are special cars that are equipped with a compression-based . engine. ...
Q. How can the military do it? Jets and helicopters can fill up while they are running. My dad is a blackhawk pilot and he fills up on ground...with the engine on! No different than a car
Asked by Branden G - Sat Jan 3 02:06:41 2009 - - 5 Answers - 0 Comments
A. Military aircraft & vehicles are physically grounded when they refuel & a "hot refuel" that the military does is extremely dangerous & some aircraft have exploded during the refuel. Hot refuels are mainly done under combat conditions. The engines on the birds are turning at full or almost full RPM so in the event that they come under enemy fire during the refuel, the pilot can shag ass out of there to keep from getting shot to pieces. You don't have to worry about pulling into Texaco and have to risk coming under an Al Qaeda attack while you are getting gas & have to jump in your car & haul out of there very quickly. Another safety reason why you are required to shut off your engine is in the event of a gas spill, you won't have a super… [cont.]
Answered by George A - Sat Jan 3 02:52:17 2009
