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Structures Of Non-Positive Displacement Pumps
(AREA)
Abstract
Liquid vacuum cleaner, perfected, being of the type that is constituted by a tank provided with rotating wheels is characterized because it has a built-in impeller aspirating motor pump whose suction line ends in a floating mouth equipped with an articulated valve according to the direction of advance, which at the same time operated doctor blade, and because said tank includes in combination a conventional float that causes the engine to stop at a suitable level, with the particularity that the impeller conduit of the motor pump group has a terminal valve that in the phase the suction unit directs the air to the outside, while in the impelling cycle it injects the air into the tank, causing internal pressure to empty the liquid, raising it to a certain height through an outlet pipe. (Machine-translation by Google Translate, not legally binding)
Improvements in the feed devices of the liquid dosing pumps for the aspirant burners of pneumatic spraying (Machine-translation by Google Translate, not legally binding)