Quick coker test: A new and rapid engine oil detergency and thermo-oxidation test  

作　　者：CHEN Ming WANG Chengtao School of Mechanical Engineering, Shanghai JiaoTong University, Shanghai 200030, China 

出　　处：《Science China Mathematics》2001年第S1期472-477,共6页中国科学：数学（英文版）

摘　　要：A method of rapidly evaluating high temperature detergency and anti oxidation propertyof engine oil is developed. It takes several minutes to distinguish base oil and high, middle or lowAPI quality grade engine oil. The method simulates the vanish formation of engine oil in piston. Inthis method, varnish forms on the surface of aluminum plate in 330±10℃ with test oil dropping onit. The detergency and anti oxidation property of engine oil are evaluated on the color of varnish.According to different practise application, two procedures are developed. Procedure a is for dis-tinguishing base oil and engine oil. Procedure b is for distinguishing engine oil of various API qual-ity grades, Also, this method is specifically suitable for discriminating poor quality engine oil inmarket.A method of rapidly evaluating high temperature detergency and anti oxidation property of engine oil is developed. It takes several minutes to distinguish base oil and high, middle or low API quality grade engine oil. The method simulates the vanish formation of engine oil in piston. In this method, varnish forms on the surface of aluminum plate in 330±10℃ with test oil dropping on it. The detergency and anti oxidation property of engine oil are evaluated on the color of varnish. According to different practise application, two procedures are developed. Procedure a is for dis- tinguishing base oil and engine oil. Procedure b is for distinguishing engine oil of various API qual- ity grades, Also, this method is specifically suitable for discriminating poor quality engine oil in market.

关 键 词：evaluation method engine oil high temperature datergency ANTI OXIDATION 

分 类 号：TH117.2[机械工程—机械设计及理论]