Knock resistance and anti-knock with hydrocarbon fuels

✍ Scribed by J. Cartlidge; C.F.H. Tipper

• Book ID: 103038655
• Publisher: Elsevier Science
• Year: 1961
• Tongue: English
• Weight: 430 KB
• Volume: 5
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(61)90078-5

✦ Synopsis

On the basis of the results of studies by the authors of the peroxidic product~ of the gas-phase oxidation of a number of hydrocarbons it is suggested that an increasing tendency to knock is related to an ~ncreased tendency for the fuel to form hydroperoxides and in particular dihydroperoxides on oxidation. Some of the problems of the relative knock resistanc~ of hydrocarbons can be explained on this basis. The high anti.knock effect of lead tetraethyl can then a!so be explained if in the cylinder a jog of lead oxide is produced, causing ralKd heterogeneous decomposition of peroxide intermediate,v, and th~,s pretesting branching due to these etm~pomMs.