liquid-fuel engine
91Air-fuel ratio — (AFR) is the mass ratio of air to fuel present during combustion. When all the fuel is combined with all the free oxygen, typically within a vehicle s combustion chamber,the mixture is chemically balanced and this AFR is called the stoichiometric …
92List of fuel cell vehicles — A fuel cell vehicle is a vehicle that uses a fuel cell to power an electric drive system. There are also hybrid vehicles meaning that they are fitted with a fuel cell and a battery or a fuel cell and an ultracapacitor.As the fuel cells get more… …
93internal-combustion engine — an engine of one or more working cylinders in which the process of combustion takes place within the cylinders. [1880 85] * * * Any engine in which a fuel air mixture is burned in the engine proper so that the hot gaseous products of combustion… …
94Pulse jet engine — A pulse jet engine (or pulsejet) is a very simple form of internal combustion engine based jet engine where combustion occurs in pulses. A typical pulsejet comprises an air intake fitted with a one way valve, a combustion chamber, and an… …
95Timeline of alcohol fuel — Ethanol, an alcohol fuel, is an important fuel for the operation of internal combustion engines that are used in cars, trucks, and other kinds of machinery. *Since ancient times ethanol has been used for lamp oil and cooking, along with plant and …
96Solid-fuel rocket — A solid rocket or a solid fuel rocket is a rocket with a motor that uses solid propellants (fuel/oxidizer). The earliest rockets were solid fueled, powered by gunpowder, used by the Chinese and Arabs in warfare as early as the 13th century. All… …
97Hyper engine — The hyper engine was a hypothetical aircraft engine design, an engine that would be able to deliver 1 horsepower per cubic inch (46 kW/L) of engine displacement. The term was used only in the United States, where the Army Air Corps funded… …
98Cryogenic fuel — Cryogenic fuels are fuels that require storage at extremely low temperatures in order to maintain them in a liquid state. Cryogenic fuels most often constitute liquefied gases such as liquid hydrogen. Some rocket engines use regenerative cooling …
99Precooled jet engine — A precooled jet engine is a concept for high speed jet engines that features a cryogenic fuel cooled heat exchanger between the air intake and the (LP) compressor, to precool the air entering the compressor. After gaining heat and vapourising in… …
100Petrol engine — A Petrol engine or Gasoline engine is an internal combustion engine with spark ignition designed to run on petrol (gasoline) and similar volatile fuels. It differs from a diesel engine in the method of mixing the fuel and air, and in the fact… …
