Question

Which among the following is an advantage of the pintle type nozzle?

(a) Self-cleaning

(b) Uneven atomization

(c) Different injection angle

(d) Fault spraying

This question was posed to me in an interview.

I'm obligated to ask this question of Diesel Engine Fuel Supply System topic in section Diesel Engine Fuel Supply System of Automotive Engine Design

Answer 1

The correct option is (a) Self-cleaning

For explanation: The pintle type of nozzle carries an extension, which produces a hollow cone-type spray. Such nozzle has the advantage of being self-cleaning and the advantage of a good nozzle is to atomize the fuel uniformly and to maintain proper injection angle and direction.