Improvements in high pressure pumps for the elevation of mixtures or emulsions based on dilute nitric acid and liquid nitrogen tetrºxide (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in high pressure pumps for the lifting of mixtures or emulsions based on diluted nitric acid and liquid nitrogen tetroxide, whose pump consists of a high pressure chamber with inlet and discharge valves and pressure cylinder with inner tube for the piston and piston fitted therein based on acid resistant materials of different brinell hardness, which moves without segments or the usual packing, characterized in that a chamber that is under ordinary pressure is attached to the side opposite the high pressure chamber of the piston, waterproofed to the outside, with an orifice for the exit of nitric acid-tetroxide mixture that has passed through the inner tube, also carrying a second hole disposed above it for the evacuation of gaseous nitrogen dioxide as well as, possibly, the return for the liquid mixture that has passed, leading it to the chamber or container provisioning of said mixture. (Machine-translation by Google Translate, not legally binding)