Test apparatus and method for determining deposit formation char

Details Test apparatus and method for determining deposit formation char Test apparatus and method for determining deposit formation char

1996-10-11

1997-12-02

Williams, Hezron E.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

73 6165, 73 6011, 73 6172, G01N 1100, G01N 500

Patent

active

056938748

ABSTRACT:
A test apparatus includes a test chamber adapted to support a test piece having the shape characteristic of an engine intake valve. Means are provided for heating the test piece, delivering a selected test fuel to the test chamber at a controlled rate and at selected intervals, and for delivering a flow of heated air through the test chamber at a preselected temperature and volumetric rate. A method for determining the relative ability of a fuel to form deposits on an engine intake valve includes placing a test piece having the shape characteristics of an engine intake valve in a test chamber, heating and maintaining the test piece at a predetermined temperature, passing a stream of heated air through the test chamber at a controlled temperature and flow rate, and alternately repeatably spraying a sample fuel onto the test piece and drying the test piece, for a period of time sufficient to establish the deposit-forming characteristics of the sample fuel.

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