

T-ftACTOB 



evening, as the temperature of the air and other conditions change. 

 When the wick is just at the proper point there is no odor and 

 no soot, and a brilHant soft Hght shows how 

 perfectly oil can burn. In other words, good 

 illumination and good combustion 

 are dependent on accurate adjust- 

 cominu turn "^F^ m^cnt in the supply of fuel and air. 



The difficulty in an engine is that this adjustment of the oil 

 and air to be exploded in the cylinder must vary from moment 

 to moment, from minute to minute, with the increasing or decreas- 

 ing load and other changes in atmospheric conditions. The human 

 hand is not quick enough, not deft enough, to regulate the fuel 

 supply of an engine. Regulation must be effected positively 

 and automatically. Those fractions of a few drops of oil must 

 be weighed out with a precision of the finest chemist's scales. 



The statement that the right quantity of fuel in correct pro- 

 portions and in perfect mixture with the air, exploded at the proper 

 phase, must result in a successful oil engine, seems simple. Only 

 the many failures and the millions of dollars in money that have 

 been lost in futile attempts to construct a practical oil engine will 

 show the difficulty of the problem and the achievement of the 

 Secor system in the pTf^ic . 



To secure the best results in an oil-burning internal combustion 

 engine, water must be used. The quantity of water must vary 

 with the load. If too much is introduced, the cylinder is flooded 

 and the engine killed ; if^oo little, the desired effect is not obtained. 

 At the moment of the 

 explosion the water 

 is evaporated and dis- 

 associated into its 

 elements of hydrogen 

 and oxygen. This free 

 or nascent oxygen attaches itself 

 to any free carbon and exerts a 

 scouring effect in the cylinder. 

 As the piston stroke advances 

 and the temperature drops, 

 hydrogen again turns to 

 water and liberates its heat, 

 thus keeping up the pressure. 

 Hence, the Secor system shows 

 a very high M. E. P. with 

 small initial pressure. This 



