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U.S. Department of Energy
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A procedure for the assessment of Pintle injector nozzle blockage (nozzle coking) in indirect injection diesel engines

Conference ·
OSTI ID:6659400
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-
Country of Publication:
United States
Language:
English