In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the...
18 KB (2,315 words) - 03:01, 28 May 2025
Octane rating (redirect from Knock resistance)
ability to withstand compression in an internal combustion engine without causing engine knocking. The higher the octane number, the more compression the...
82 KB (9,320 words) - 22:12, 25 May 2025
racing. In Otto cycle engines, the cooling effect of water injection also enables greater compression ratios by reducing engine knocking (detonation). Alternatively...
15 KB (1,824 words) - 20:51, 16 May 2025
Antiknock agent (redirect from Anti-knocking)
An antiknock agent (also: knock inhibitor) is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating by raising the temperature...
25 KB (3,254 words) - 03:05, 28 May 2025
dictionary. Pinking may refer to: Engine knocking, the noise indicative of improper combustion in internal combustion engines Pinking shears An alternative...
467 bytes (64 words) - 08:28, 18 October 2016
Pre-ignition (category Engine fuel system technology)
Pre-ignition (or preignition) in a spark-ignition engine is a technically different phenomenon from engine knocking, and describes the event wherein the air/fuel...
6 KB (821 words) - 11:07, 25 May 2024
The act of percussion upon surfaces Kinds of "knocking" or loud recurring sounds such as engine knocking Banging pots, a form of protest Bang (disambiguation)...
370 bytes (73 words) - 11:41, 9 August 2022
Witnesses Knocking (2021 film), a Swedish thriller film Engine knocking, or the sound accompanying automotive combustion malfunction Port knocking, a covert...
883 bytes (146 words) - 21:13, 10 May 2025
Head gasket (category Engine technology)
cylinder head is a time-consuming task. Engine knocking (detonation) can be caused by poor quality fuel, an engine fault or if inappropriate fuel and/or...
8 KB (1,080 words) - 17:17, 13 April 2025
The Wankel engine's design is, on the other hand, much less prone to engine knocking, which allows using low-octane fuels without reducing compression....
136 KB (16,656 words) - 20:34, 1 June 2025
Supercharger (redirect from Blower engine)
combustion engine, the temperature of the intake air becomes a limiting factor in engine performance. Extreme temperatures can cause pre-ignition or knocking, which...
26 KB (3,043 words) - 00:36, 18 May 2025
Poppet valve (redirect from Piston engine valve)
additives had been used in petrol (gasoline) since the 1920s, to prevent engine knocking and provide lubrication for the valves. Modern materials for the valves...
18 KB (2,095 words) - 15:51, 29 April 2025
Exhaust gas recirculation (category Engine technology)
before the air-fuel mixture must be enriched to prevent engine knocking. In a gasoline engine, this inert exhaust displaces some amount of combustible...
21 KB (2,772 words) - 12:04, 1 May 2025
lead-containing additive used to aid in lubrication of the engine, increase octane rating, and prevent engine knocking (premature detonation). There are ongoing efforts...
92 KB (8,589 words) - 12:34, 28 May 2025
blend to resist premature ignition (which causes knocking and reduces efficiency in reciprocating engines) is measured by its octane rating. Tetraethyl lead...
107 KB (10,378 words) - 09:16, 29 May 2025
Variable-length intake manifold (category Engine technology)
This aids the initiation of the combustion process, helps minimise engine knocking, and helps facilitate complete combustion. At low revolutions per minute...
11 KB (1,255 words) - 09:37, 24 May 2025
engine efficiency were attempted at higher compression ratios, but early attempts were blocked by the premature explosion of fuel, known as knocking....
61 KB (8,201 words) - 18:55, 14 April 2025
of coolant into the cylinder head help to suppress engine knocking. Comprehensive measures to engine components were taken to minimize friction. For lightness...
9 KB (866 words) - 05:47, 20 March 2025
and there is a flame front and sometimes even engine knocking. One of the reasons that Diesel engines are able to attain higher efficiency is that the...
20 KB (2,521 words) - 13:52, 6 April 2025
Otto cycle (redirect from Otto cycle engine)
complete, leading to "engine knocking". This can damage engine components and will decrease the brake horsepower of the engine. The power produced by...
24 KB (4,251 words) - 12:47, 26 April 2025
Ignition timing (redirect from Engine timing)
(ATDC) are usually counter-productive (producing wasted spark, back-fire, engine knock, etc.) unless there is need for a supplemental or continuing spark prior...
17 KB (2,471 words) - 13:55, 5 August 2024
titled Knock, a 1951 French comedy film Knock, to tap on a door Knock, a slang term meaning to render a negative evaluation or assessment Engine knocking, in...
3 KB (339 words) - 20:31, 17 December 2024
Automatic Performance Control (category Engine technology)
Automatic Performance Control (APC) was the first engine knock and boost control system. The APC was invented by Per Gillbrand at the Swedish car maker...
4 KB (555 words) - 01:38, 3 December 2021
rather than a high knocking resistance (octane rating) that is preferred for petrol engines. The diesel internal combustion engine differs from the gasoline...
154 KB (16,756 words) - 22:12, 30 May 2025
Carburetor (redirect from Vaporizer (internal combustion engine))
four-stroke engine it is often desirable to provide extra fuel to the engine at high loads (to increase the power output and reduce engine knocking). A 'power...
31 KB (3,781 words) - 21:37, 16 March 2025
are responsible for engine knock – the undesirable, erratic, and noisy combustion of low-octane fuels in internal combustion engines. Cool flames were accidentally...
17 KB (2,043 words) - 23:32, 23 May 2025
Engine tuning is the adjustment or modification of the internal combustion engine or Engine Control Unit (ECU) to yield optimal performance and increase...
20 KB (2,705 words) - 01:44, 25 October 2024
Detonation (section In engines and firearms)
is a problem in some devices. In Otto cycle, or gasoline engines it is called engine knocking or pinging, and it causes a loss of power. It can also cause...
17 KB (1,887 words) - 13:13, 26 May 2025
A stratified charge engine describes a certain type of internal combustion engine, usually spark ignition (SI) engine that can be used in trucks, automobiles...
15 KB (2,122 words) - 19:28, 7 August 2024
The Toyota MZ engine family is a piston V6 engine series. It was Toyota's second V6 engine after the VZ engine family, of which the MZ series succeeded...
10 KB (1,195 words) - 03:52, 26 April 2025