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| Articles about Combustion |
| Hefley Motor Company: Reinventing Internal Combustion | | 2008-08-15 09:00:11 | | We have had the same conventional internal-combustion engine for over 100 years, and it hasn’t changed much in the last 50 years. Up until this point, the increases we’ve managed to achieve in fuel economy within a conventional gasoline or diesel engine have come from one of two sources:
Computer-controlled fuel-injection, which allows a computer inside [...]
| | By: AutomoBlog.net | | |
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| | BMW Hydrogen/Petrol Combustion Engine | | 2007-12-29 19:40:11 | | The dual-mode combustion engine powering the first series production luxury hydrogen saloon is the decisive, revolutionary new development in BMW Hydrogen 7: this new engine is based on the 12-cylinder gasoline power unit displacing 6.0-litres and featuring VALVETRONIC technology in the BMW 7 Series. Maximum torque is 390Nm and comes at an engine speed of 4300rpm.The V12 power unit in the BMW Hydrogen 7 operates in two modes, meaning that the engine is able to burn either hydrogen or gasoline in the same cylinders. Offering an overall cruising range of approximately 700 kilometres or 435 miles, BMW's hydrogen car with its dual-mode combustion engine has an even longer range than the BMW 760i.Running on gasoline, the engine operates with direct fuel injection, while in the hydrogen mode the fuel/air mixture is formed in the intake manifolds. The new injection valves developed for this purpose make the greatest conceivable demands in engine development in terms of their construction and integration. Conceived and designed for gaseous hydrogen, the valves are not only larger than conventional gasoline injection valves, but also cover a far wider variation in size and range in terms of their volume flow, operating at different levels of system pressure and at the same time with both very short and longer gas injection times required for hydrogen gas. Even so, they reliably inject exactly the right amount of hydrogen into the intake air at all times within hundredths of a second.Since hydrogen burns up to ten times faster than conventional fuel, management of the dual-mode combustion engine requires specific functions and operations. Using fully variable VALVETRONIC valve management as well as the variable double-VANOS camshaft adjustment, the engineers responsible for developing BMW Hydrogen 7 had ideal tools from the start for optimising the hydrogen combustion process, gearing the gas cycle and mixture formation process specifically to the individual properties and | | By: BMW All Series | | |
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| The characteristics of human combustion | | 2007-11-25 21:25:41 | | The official science doesn’t want to recognize the phenomens like spontaneous auto-light to some persons. However, are some science workers who try to find an explication for that incredible phenomen. They have analyzed more cases of human combustion and they have elaborated some characteristic of that anomaly phenomen. In almost all cases, this phenomen have [...] | | By: Psycho Delirium | | |
| | The human combustion | | 2007-11-19 10:42:33 | | – Divine punishment or chemical reaction?-
The search workers continue to search the mystery solver of some people spontaneous lighting. Till our days, that physical law which cause this horrible phenomen stayed unknown and for many time, under the form explication are chooses some supernatural causes.
Just in [...] | | By: Psycho Delirium | | |
| | Combustion espontanea. | | 2007-08-01 17:05:20 | | No creo en dioses, ni en lo que algunos llaman combustión espontánea, pero si existieran, si cupiera la mínima posibilidad de que ambos existiesen, rezaría con todas mis fuerzas para que a los culpables de esta atrocidad les reventara un volcán en lo más profundo de sus entrañas y se calcinaran sus órganos lentamente, de dentro a fuera, hasta que les arda la piel, hasta que los envuelvan las llamas, hasta que el fuego se convierta en el último y agónico aliento de sus miserables vidas.Hijos de puta.Fotografía: AcfiPress | | By: Look Closer | | |
| | | | COMBUSTION CHAMBER INTEGRITY: | | 2007-02-12 06:00:00 | | An awful lot of confusion exists on cylinder heads and the issues of containing high compression on 14.0:1 gasoline on up to 22.0:1 Diesel engines…I hope this helps. In this engine area, most failures that occur are cumulative…meaning they are the result of a long calendar of events that finally get together to bite you in the butt-either in competition, on the job, or out on the highway. My experience has been that most assembly mechanics simply overlook basics and create these failures-rather than their being the result of poor design, or even parts “failure”, usually it is a lack of understanding the “how does it work?” aspects of combustion containment. Most design parameters give a generous amount of error factor to their product, hence, a 18 to 1 diesel is designed typically for 20 to 1 + conditions, as an engine degrades through wear, this “space” becomes greater….but…as teardown after teardown overlooks the obvious, the safety gap closes-and ma | | By: whazammo and the buffalo | | |
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