knock rating

knock rating
The standard scale of resistance to knock (the ability of fuel to remain at high temperatures and pressures without causing detonation) of reciprocating engine fuels, measured relative to iso-octane. It is expressed as a percentage by volume of iso-octane in a mixture with normal heptane that has the same knocking characteristics as the fuel under question. Fuel with an 87 knock rating is a mixture of 87% iso-octane and 13% heptane. It was previously called octane rating.

Aviation dictionary. 2014.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • knock-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 …   Useful english dictionary

  • Knock on the Sky — Studio album by SHeDAISY Released June 25, 2002 …   Wikipedia

  • Knock Knock (album) — Infobox Album | Name = Knock Knock Type = Album Artist = Smog Released = January 12, 1999 (LP/CD on Drag City) February 1, 1999 (LP/CD on Domino) Recorded = 1998 Length = 42:47 Label = Drag City / Domino Producer = Jim O Rourke Reviews = *… …   Wikipedia

  • Knock on Wood - The Best of Amii Stewart — Infobox Album Name = Knock on Wood The Best of Amii Stewart Type = Compilation Artist = Amii Stewart Released = 1996 Recorded = 1978 1985 Genre = R B, Pop music, Disco Length = Label = Hot Classics US Producer = Barry Leng, Narada Michael Walden …   Wikipedia

  • Knock on Wood (Eddie Floyd album) — Infobox Album Name = Knock On Wood Type = studio Longtype = Artist = Eddie Floyd Released = 1967 Recorded = July–December 1966 Stax Recording Studios (Memphis, Tennessee) Genre = R B, Southern soul Length = 34:55 Label = Stax S 714 Producer =… …   Wikipedia

  • Knock 'Em Dead Kid — Album infobox Name = Knock Em Dead, Kid Type = Album Artist = Trooper Background = Released = Start date|1977|6|8 Recorded = Genre = Rock, hard rock Length = Label = MCA Producer = Randy Bachman Reviews = Rating|4|5… …   Wikipedia

  • octane rating/number — An indicator of a fuel’s ability to burn at a controlled rate at high temperatures and pressures without causing a detonation (very rapid burning or exploding). This number is expressed as a percentage by volume of iso octane in a mixture with a… …   Aviation dictionary

  • Octane rating — or octane number is a standard measure of the anti knock properties (i.e. the performance) of a motor or aviation fuel. The higher the octane number, the more compression the fuel can withstand before detonating. In broad terms, fuels with a… …   Wikipedia

  • Vol. 2... Hard Knock Life — Infobox Album Name = Vol. 2... Hard Knock Life Type = Studio Artist = Jay Z Released = September 29, 1998 (US) Recorded = 1997 1998 Genre = East Coast hip hop Length = Label = Roc A Fella Records Def Jam Recordings Producer = Swizz Beatz, DJ… …   Wikipedia

  • Elo rating system — Chess Go The Elo rating system is a method for calculating the …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”