REACTIONS of unsaturated fuel constituents with oxides of nitrogen, formed during combustion, play an important part in formation of engine deposits. Engine varnish, the organic binder in engine deposits, results in large part from reactions of nitrogen dioxide with gasoline constituents.Simplified kinetic studies indicate that nitrogen fixation and amounts of nitric oxide present in exhaust gases could be predicted. Tests have demonstrated that only under conditions leading to appreciable nitrogen fixation does heavy engine varnishing occur.Because commercial engine oils are fairly resistant to oxidation, it is likely that current deposit problems result from the nature of fuel and prevailing operating conditions. Under average driving, low-temperature operation, lean mixtures with consequent high nitrogen oxide content contribute much to varnish formation.REACTIONS of unsaturated fuel constituents with oxides of nitrogen, formed during combustion, play an important part in formation of engine deposits. Engine varnish, the organic binder in engine deposits, results in large part from reactions of nitrogen dioxide with gasoline constituents.Simplified kinetic studies indicate that nitrogen fixation and amounts of nitric oxide present in exhaust gases could be predicted. Tests have demonstrated that only under conditions leading to appreciable nitrogen fixation does heavy engine varnishing occur.Because commercial engine oils are fairly resistant to oxidation, it is likely that current deposit problems result from the nature of fuel and prevailing operating conditions. Under average driving, low-temperature operation, lean mixtures with consequent high nitrogen oxide content contribute much to varnish formation.
Nitrogen Oxides, Combustion, and Engine Deposits
Sae Technical Papers
Pre-1964 SAE Technical Papers ; 1906
01.01.1956
Aufsatz (Konferenz)
Englisch
Nitrogen Oxides and Engine Combustion
SAE Technical Papers | 1962
|Oxides of Nitrogen in the Combustion Products of an Ammonia Fueled Reciprocating Engine
SAE Technical Papers | 1968
|Effect of Engine Operating Parameters on Engine Combustion Chamber Deposits
SAE Technical Papers | 1990
|Unsteady thermal behavior of engine combustion chamber deposits
Kraftfahrwesen | 1988
|Unsteady Thermal Behavior of Engine Combustion Chamber Deposits
SAE Technical Papers | 1988
|