Accession Number:

ADB159757

Title:

Engine Intake Air Dust Detector Requirements and Performance

Descriptive Note:

Final rept.

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TXENGINE FUEL AND VEHICLE RESEARCH DIV

Personal Author(s):

Report Date:

1991-03-01

Pagination or Media Count:

204.0

Abstract:

This report describes a program to develop criteria for an on-vehicle dust detector to monitor engine induction air quality and provide a warning when unacceptable levels of dust are present, and to seek out and evaluate existing or developing technologies for such a detector through parametric analyses and bench and full-scale laboratory testing. Standard air filter tests were conducted to characterize the degree of protection afforded by military air cleaner systems under normal and abnormal filter operation. Primary parameters of interest were downstream particle size and concentration level as a function of filter dust loading and operating mode. Consideration was also given to the level of dust protection required by engines, although this turned out to be a minor factor in specifying the dust detectors operating requirements. Instead, the performance of the clean filter element was the controlling factor as far the dust detectors triggering criteria were concerned because a clean filter inherently passes a large number of particles early in its loading history, even when operating property, and these particles must be accommodated by the detector without triggering. Because it was desirable to obtain a single dust detector for use on all military tactical and combat vehicles, a broad-based, go no-go triggering criteria was developed to include a margin of safety against false triggering under worst case conditions for a normally operating filter. Three parameters were chosen particle size, concentration, and response time.

Subject Categories:

  • Miscellaneous Detection and Detectors
  • Reciprocating and Rotating Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE