A procedure for the assessment of Pintle injector nozzle blockage (nozzle coking) in indirect injection diesel engines

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:6659400

Reynolds, E G

The use of small indirect injection (IDI) diesel engines in passenger cars has gained popularity, as fuel economy becomes a salient feature of vehicle running costs. The broadening in the application of this engine from light commercial vehicles has placed a greater emphasis on customer acceptability. This paper discusses results obtained from an air flow test rig, which was used at BP Research Centre, Sunbury to measure flow rates through clean and partially blocked injector nozzles from IDI diesel engines. A method of analysing the results to give levels of nozzle blockage on a scale of 1 to 100 is described and the ability of the method to define levels of deposit formation is demonstrated.

• Research Organization: BP International, BP Research Centre, Sunbury on Thames
• OSTI ID: 6659400
• Report Number(s): CONF-8609188-
• Resource Relation: Conference: Passenger car meeting and exposition, Dearborn, MI, USA, 22 Sep 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
AUTOMOBILES
DIESEL ENGINES
FUEL INJECTION SYSTEMS
COKING
COMBUSTION
COST
DEPOSITS
EFFICIENCY
EUROPE
EVALUATION
EXHAUST GASES
FUEL ECONOMY
FUEL-AIR RATIO
NOISE
NOZZLES
POLLUTION REGULATIONS
SCALING
USA
CARBONIZATION
CHEMICAL REACTIONS
DECOMPOSITION
ENGINES
FLUIDS
FUEL SYSTEMS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NORTH AMERICA
OXIDATION
REGULATIONS
THERMOCHEMICAL PROCESSES
VEHICLES
WASTES
330102* - Internal Combustion Engines- Diesel