knock-knock: Spark Knock, Wild Ping, or Rumble?
knock-knock: Spark Knock, Wild Ping, or Rumble?
- Neue Suche nach: Lowther, H. V.
- Neue Suche nach: Perry, R. H.
- Neue Suche nach: Lowther, H. V.
- Neue Suche nach: Perry, R. H.
ENGINE noise has become an increasing problem with the higher and higher compression ratios of present-day automotive engines. Because fuel octane number cannot be raised indefinitely, the problem is one of engine design and selection of crankcase lubricating oils and gasoline formulations, the authors think.This paper describes investigations into the cause of spark knock, wild ping, rumble, and the added problem of hot-spot surface ignition (which also intensifies as compression ratios increase). The authors have found gasolines with phosphorous additives, used with properly formulated multiviscosity lubricating oils, provide a partial answer to the problem of engine rumble.The authors conclude that very exact tailoring of fuels, lubricants, additives, and engines will be necessary to prevent engine noise if compression ratios continue to rise.
Dokumentinformationen
knock-knock: Spark Knock, Wild Ping, or Rumble?
Sae Technical Papers
Pre-1964 SAE Technical Papers ; 1906
1959-01-01
Aufsatz (Konferenz)
Englisch
Lubricants , Crankcases , Lubricating oils , Knock , Noise , Gasoline
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