Method for reducing low speed pre-ignition

• Main Authors: RAJ MOHAN VIVEK RAJA, RUSSO JOSEPH MICHAEL, NELSON EDWARD CARL, GHOSAL ANINDYA KUMAR
• Format: Patent
• Language: Chinese; English
• Published: 29.05.2020
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE

Use of an unleaded gasoline fuel composition for reducing the occurrence of Low Speed Pre-Ignition (LSPI) in a spark-ignition internal combustion engine, wherein the unleaded gasoline fuel compositioncomprises a gasoline base fuel and detergent additive package, wherein the detergent additive package comprises a Mannich base detergent mixture, wherein the mixture comprises a first Mannich base detergent component derived from a di- or polyamine and a second Mannich base detergent component derived from a monoamine, wherein the weight ratio of the first Mannich base detergent to the second Mannich base detergent mixture ranges from about 1:6 to about 3:1, and wherein the spark- ignition internal combustion engine is lubricated with a lubricant composition comprising from 1200ppmw to 3000ppmw of calcium, based on the total lubricant composition. 无铅汽油燃料组合物的用于减少火花点火式内燃发动机中低速提前点火(LSPI)的发生率的用途，其中无铅汽油燃料组合物包括汽油基燃料和清洁剂添加剂包，其中清洁剂添加剂包包括曼尼希基清洁剂混合物，其中该混合物包括衍生自二胺或多胺的第一曼尼希基清洁剂成分和衍生自单胺的第二曼尼希基清洁剂成分，其中第一曼尼希基清洁剂与第二曼尼希基清洁剂混合物的重量