Search results

...ntrol''' covers all the technologies that are employed to reduce the [[air pollution]]-causing emissions produced by [[automobile]]s. Exhaust emissions control ...in the number of vehicles in use, have meant that the overall reduction in pollution has been much slower.

...eated inside the cylinder either by [[ignition system|ignition]] of a fuel air mixture ([[internal combustion engine]]) or by contact with a hot heat exch ...ill used in some applications such as to drive many modern torpedoes or as pollution free motive power.

...s known as a stroke and the downward stroke that occurs directly after the air-fuel mix in the cylinder is ignited is known as a power stroke. ...ical process of [[combustion]]: the reaction of a [[fuel]], typically with air, although other oxidisers such as [[nitrous oxide]] may be employed. Also s

...mponents that generate power and deliver it to the road surface, water, or air. This includes the [[internal combustion engine|engine]], [[transmission ( ...tomatically to follow minimal energy consumption and minimal environmental pollution, performance may suffer. The motor vehicle industry doubts that customers m

...al temperature of the catalytic converter, and thus precipitate out of the air. ...eled engines). This is because the three-way converter works best when the air-fuel ratio of the engine is kept within a certain very narrow band (when th

...hat is designed not to affect the [[streamline]] around the body. The side air intakes behind the front wheels generate a negative pressure, resulting in The eternity of the element air. Gentle and refined, yet the strength of the wind it is able to erode even

...to develop a tire and wheel combination, the [[Tweel]], which does not use air. ...use of its suitable mechanical properties and excellent impermeability for air.

...ion and which may be covered in an aerodynamic fairing to achieve very low air drag is referred to as a [[Recumbent bicycle]] or [[Human Powered Vehicle]] ..., touring clubs, etc.) and for more global goals ([[energy conservation]], pollution reduction, promotion of fitness). Two broad themes run in bicycle activism