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Topic: Diesel engine


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  diesel engine. The Columbia Encyclopedia, Sixth Edition. 2001-07
The diesel engine does not require a large water supply or a long warming-up period and is highly efficient in converting heat energy into work.
Diesels are widely used in both stationary and mobile installations where the power required is between that furnished by the gasoline engine and that of the steam turbine and where the relatively high initial cost can be written off over a long period.
The diesel engine 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: the high compression ratio allows the air in the cylinder to become hot enough to ignite the fuel.
www.bartleby.com /65/di/dieselen.html   (633 words)

  
 Diesel engine - Engineering
To fully realize the capabilities of a diesel engine, use of a turbocharger to compress the intake air is necessary; use of an aftercooler/intercooler to cool the intake air after compression by the turbocharger further increases efficiency.
Diesel fuel is a better lubricant than gasoline so is less harmful to the oil film on piston rings and cylinder bores; it is routine for diesel engines to cover 250,000 miles or more without a rebuild.
The BMW diesel lab in Steyr, Austria is led by Ferenc Anisits and is considered to be a leader in development of automotive diesel engines.
engineering.wikia.com /wiki/Diesel_engine   (4253 words)

  
  History of Diesel Engine-Yokayo Biofuels
The early diesel engines were not small enough or light enough for anything but stationary use due to the size of the fuel injection pump.
Diesel did not agree with the politics of Germany and was reluctant to see his engine used by their Naval fleet.
Diesel engines were altered to utilize the lower viscosity of the fossil fuel residue rather than a biomass based fuel.
www.ybiofuels.org /bio_fuels/history_diesel.html   (1625 words)

  
 Diesel Engine :: Blocks (SimDriveline)
The Diesel Engine block models a diesel-fuel, compression-ignition engine with a speed governor.
This signal specifies the engine torque as a fraction of the maximum torque possible in a steady state at a fixed engine speed and should lie between 0 and 1.
Engine speed, in revolutions per minute (rpm), when the engine is running at maximum power.
www.mathworks.com /access/helpdesk/help/toolbox/physmod/drive/dieselengine.html   (507 words)

  
 Hempcar.org-Rudolf Diesel
Diesel originally thought that the diesel engine, (readily adaptable in size and utilizing locally available fuels) would enable independent craftsmen and artisans to endure the powered competition of large industries that then virtually monopolized the predominant power source-the oversized, expensive, fuel-wasting steam engine.
Diesel spent two more years at improvements and on the last day of 1896 demonstrated another model with the spectacular, if theoretical, mechanical efficiency of 75.6 percent, in contrast to the then-prevailing efficiency of the steam engine of 10 percent or less.
Diesel died under mysterious circumstances in 1913, vanishing during an overnight crossing of the English Channel on the mail steamer Dresden from Antwerp to Harwich.
www.hempcar.org /diesel.shtml   (700 words)

  
 Submarine Main Propulsion Diesels - Chapter 1
It is significant that the diesel engine is an outgrowth of the early struggle to improve the efficiency of existing types of other internal combustion engines.
Hence, vibrations developed by the engines could not be conducted to the propeller shafting and propellers, and the various stresses encountered by the propellers could not be transmitted directly to the engines as was the case with mechanical couplings.
The modified diesel cycle, as applied to diesel engines, may be defined as a cycle of operation in which the combustion phase, induced by compression ignition, begins on a constant-volume basis and ends on a constant pressure basis.
www.maritime.org /fleetsub/diesel/chap1.htm   (6722 words)

  
 No. 1435: Rudolf Diesel
Diesel saw himself as a scientific genius and the James Watt of the late nineteenth century.
Diesel saw his own development work as a continuation of the inventive process (as it surely was).
Diesel was badly troubled by criticisms of his role in creating the engine, and, in 1913, he vanished from a boat to England.
www.uh.edu /engines/epi1435.htm   (571 words)

  
 Biodiesel.org - Standards & Warranties   (Site not responding. Last check: )
They warranty their engines for “materials and workmanship.” If there is a problem with an engine part or with engine operation due to an error in manufacturing or assembly within the prescribed warranty period, the problem will be covered by the engine company.
If there are engine problems caused by a fuel (again, whether that fuel is petrodiesel fuel or biodiesel fuel) these problems are not related to the materials or workmanship of the engine, but are the responsibility of the fuel supplier and not the engine manufacturer.
Some engine companies have already specified that the biodiesel must meet ASTM D-6751 as a condition, while others are still in the process of adopting D-6751 within their company or have their own set of guidelines for biodiesel use that were developed prior to the approval of D-6751.
www.biodiesel.org /resources/fuelfactsheets/standards_and_warranties.shtm   (834 words)

  
 The Diesel Engine
The diesel internal combustion engine differs from the gasoline powered Otto cycle by using a higher compression of the fuel to ignite the fuel rather than using a spark plug ("compression ignition" rather than "spark ignition").
In the diesel engine, air is compressed adiabatically with a compression ratio typically between 15 and 20.
This is in contrast to "spark ignition" for the typical automobile gasoline engines that operate on a cycle derived from the Otto cycle.
hyperphysics.phy-astr.gsu.edu /hbase/thermo/diesel.html   (409 words)

  
 The marine diesel prime mover. - The two stroke plant
Diesel engines are furthermore sub-divided into three categories: slow, medium and high speed.
The most prominent builders of large, slow speed, two stroke engine are Sulzer of Switzerland, producer of the first big two stroke design, and Burmeister and Wain (BandW) of Denmark, the pioneers of the engine’s application to ship design.
Two stroke engine have a wide variety of power output from the 353 Detroit Diesel with an output of less than 75 kW to a Sulzer RT-flex96C producing a 80,080 kW or about 109,000 bhp from fourteen cylinders turning at 102 rpm, not to be outdone MAN BandW has come out with the K108ME-C.
www.dieselduck.ca /machinery_page/diesel_engine/diesel_engine.01.htm   (1471 words)

  
 Industrial Diesel Engines: Generator and Engine Types and Industrial Uses
The fuel in a diesel engine is ignited by suddenly exposing it to the high temperature and pressure of a compressed gas containing oxygen (usually atmospheric air), rather than a separate source of ignition energy (such as a spark plug).
Diesel engine generators are recommended due to their longevity and lower operating costs.
Diesel generators are designed to meet the needs of small and medium-sized businesses apart from heavy usage in industries.
www.dieselserviceandsupply.com /industrial_industry_usage.aspx   (1307 words)

  
 How a Diesel Engine Works - Diesel Motor Basics - Diesel Power Magazine
The major difference between the gasoline and diesel engine is that the former relies on spark ignition and the latter on compression ignition.
This means that in the diesel engine the combustion pressure continues to rise steadily as the piston retreats and the cylinder volume increases, whereas in the gas engine, the combustion process is so rapid that there is very little movement of the piston while it occurs and, thus, very little increase in cylinder volume.
In the diesel engine, the fuel is injected into the combustion chamber near the end of the compression stroke and ignites spontaneously.
www.dieselpowermag.com /tech/general/0610dp_how_diesel_engine_works/index.html   (1111 words)

  
 Technology Guide: Paper Abstracts
The diesel engine, invented in the late 19th century by Dr. Rudolf Diesel, is the most energy efficient powerplant among all type of internal combustion engines known today.
The regeneration of diesel filters is characterized by a dynamic equilibrium between the soot being captured and the soot being oxidized in the filter.
Diesel filter materials should be characterized by high filtration efficiencies, high maximum operating temperatures, low thermal expansion, resistance to thermal stress, and chemical resistance to metal oxides (ash) present in diesel particulates.
www.dieselnet.com /tginfo/abstracts.html   (5987 words)

  
 Biodiesel Performance in cars, trucks, heating
Since then, truckers, boaters and other operators of diesel engines have turned to a variety of petroleum additives (in extreme cases, transmission fluid) in an attempt to protect their engines from excessive wear and gasket leaks associated with the new "low sulfur/low aromatics" diesel fuel.
Marine diesel engine manufacturers in United States, Europe and Japan have all recognized the growing role of Biodiesel as a viable fuel additive, and in most cases, as a complete alternative fuel (100%).
Engine manufacturers in Europe have a long history of supporting the Biodiesel movement, and those that produce marine engines continue to endorse the alternative fuel use in their equipment.
www.dieselverde.com /Performance.html   (2101 words)

  
 The diesel engine
Diesel was pursued from now on by the thought to build such an engine.
Rudolf Diesel was pursued by patent quarrels, and scruplesless businessmen succeeded in acquiring rights for diesel's engine, so that he finally couldn't develop on his own engine any more.
Because of this reason, cars with otto engines that are more harmful for the environment are often preferred to the ones using diesel engines.
library.thinkquest.org /C006011/english/sites/diesel.php3?v=2   (794 words)

  
 Howstuffworks "Diesel Engines vs. Gasoline Engines"
In a gasoline engine, fuel is mixed with air, compressed by pistons and ignited by sparks from spark plugs.
It is the heat of the compressed air that lights the fuel in a diesel engine.
Rudolf turned out to be right -- a gasoline engine compresses at a ratio of 8:1 to 12:1, while a diesel engine compresses at a ratio of 14:1 to as high as 25:1.
auto.howstuffworks.com /diesel1.htm   (512 words)

  
 Honda Worldwide | September 25, 2006 "Honda Develops Next-Generation Clean Diesel Engine Capable of Meeting ...
Honda Develops Next-Generation Clean Diesel Engine Capable of Meeting Stringent Tier II Bin 5 Emissions Requirements in the U.S. September 25, 2006–Honda Motor Co., Ltd., announced it has developed a next-generation diesel engine that reduces exhaust gas emissions to a level equal to a gasoline engine.
Honda’s next-generation diesel engine employs a revolutionary NOx catalytic converter that enables a great reduction in NOx emissions sufficient to meet stringent U.S. Environmental Protection Agency (EPA) Tier II Bin 5 emissions requirements (based on Honda’s internal calculations).
Gasoline engines presently employ three-way catalytic converters that offer NOx reduction rates as high as 99%, but this performance is possible only at the stoichiometric air-fuel ratio.
world.honda.com /news/2006/c060925DieselEngine   (585 words)

  
 Cleaner diesel engine rules take effect - USATODAY.com   (Site not responding. Last check: )
Federal regulations that take effect Monday mandate cleaner diesel engines in new trucks and school buses, dramatically cutting pollution but raising costs.
The new engines, in combination with low-sulfur diesel fuel that began selling nationwide in October, will reduce particulate emissions by up to 98% over the previous generation, the Diesel Technology Forum says.
But the new engines could add up to $12,000 to the cost of a new big-rig truck, which can run upward of $100,000.
www.usatoday.com /money/industries/energy/2006-12-28-diesel-usat_x.htm   (498 words)

  
 Heavy-Duty Highway Diesel Program | US EPA
Sulfur in diesel fuel must be lowered to enable modern pollution-control technology to be effective on these trucks and buses.
Engine manufacturers have the flexibility to meet the new standards through a phase-in approach between 2007 and 2010.
Regulations and Standards: for the Highway Diesel Rule (the “2007 Highway Rule”), heavy-duty engines, and diesel fuel.
www.epa.gov /otaq/highway-diesel/index.htm   (395 words)

  
 DieselNet: Diesel Emissions Online
Diesel engine is the most efficient power plant among all known types of internal combustion engines.
The diesel engine is a major candidate to become the power plant of the future.
Internal combustion engines are significant contributors to air pollution, which has a damaging impact on our health and the environment and is suspected to cause global climate changes.
www.dieselnet.com   (913 words)

  
 Diesel Technology Forum: Where is Diesel   (Site not responding. Last check: )
Because diesel engines are the most efficient internal combustion engine in the world, they provide power for an incredibly wide range of applications.
Diesel moves approximately 90 percent of the nation’s freight tonnage, and today nearly all highway freight trucks, locomotives and commercial marine vessels are powered by diesel engines.
Most U.S. public and city transit buses are powered by diesel engines, and diesel hybrid-electric engines are becoming increasingly popular as transit systems strive for increased fuel efficiency and cleaner engines.
www.dieselforum.org /where-is-diesel/find-diesel   (464 words)

  
  Diesel engine - Wikipedia, the free encyclopedia
Diesel engines produce very little carbon monoxide as they burn the fuel in excess air even at full load, at which point the quantity of fuel injected per cycle is still about 50% lean of stoichiometric.
Diesel engines tend to have their torque peak quite low in their speed range (usually between 1600-2000 rpm for a small-capacity unit, lower for a larger engine used in a lorry or truck).
Diesel fuel is a better lubricant than gasoline so is less harmful to the oil film on piston rings and cylinder bores; it is routine for diesel engines to cover 250,000 miles or more without a rebuild.
en.wikipedia.org /wiki/Diesel_engine   (7642 words)

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