knock engine
1knock — [1] A general term used to describe various noises occurring in an engine; may be used to describe noises made by loose or worn mechanical parts. [2] Preignition, or detonation. Also see anti knock agent carbon knock diesel knock engine knock… …
2knock — [näk] vi. [ME knokken < OE cnocian, akin to ON knoka, MHG knochen, to press < echoic base > KNACK] 1. to strike a blow or blows with the fist or some hard object; esp., to rap on a door 2. to bump; collide; clash 3. to make a thumping,… …
3Engine tuning — is the adjustment, modification or design of internal combustion engines to yield optimal performance, either in terms of power output or economy. It has a long history, almost as long as the development of the car in general, originating with… …
4Engine efficiency — of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful work. There are two classifications of thermal engines (1) Internal combustion (gasoline, diesel and gas… …
5knock-rating — knockˈ rating noun The measurement of freedom from knocking of a fuel in an internal combustion engine, as compared with a standard fuel • • • Main Entry: ↑knock …
6Engine knocking — Pinging redirects here. For other uses, see Ping (disambiguation). Knocking (also called knock, detonation, spark knock, pinging or pinking) in spark ignition internal combustion engines occurs when combustion of the air/fuel mixture in the… …
7Engine control unit — An engine control unit (ECU) is an electronic control unit which controls various aspects of an internal combustion engine s operation. The simplest ECUs control only the quantity of fuel injected into each cylinder each engine cycle. More… …
8knock — knock1 W3S1 [nɔk US na:k] v ▬▬▬▬▬▬▬ 1¦(door)¦ 2¦(hit and move something)¦ 3¦(hit somebody hard)¦ 4¦(hit part of your body)¦ 5 knock on doors 6 be knocking on the door 7¦(remove wall)¦ 8 knock a hole in/through something 9¦(criticize)¦ …
9knock — 1 verb 1 DOOR/WINDOW (T) to hit a door or window with your closed hand to attract the attention of the people inside: Why don t you knock before you come in? (+ at/on): I turned to see Jane knocking frantically on the taxi window. 2 HIT/MAKE STH… …
10knock — knock1 [ nak ] verb *** 1. ) intransitive or transitive to hit something, causing damage or harm: Mike had knocked his leg against a table. a ) transitive to hit something and force it somewhere: He knocked a couple of nails into the door. b )… …
