초록 ▼

A vacuum toilet system comprises a toilet bowl having an outlet opening, a sewer pipe having an interior space, a discharge valve connecting the outlet opening of the toilet bowl to the sewer pipe, and a source of partial vacuum for establishing a lower pressure in the interior space of the sewer pi

A vacuum toilet system comprises a toilet bowl having an outlet opening, a sewer pipe having an interior space, a discharge valve connecting the outlet opening of the toilet bowl to the sewer pipe, and a source of partial vacuum for establishing a lower pressure in the interior space of the sewer pipe than in the toilet bowl. A nozzle defines a rinse liquid outlet for introducing liquid into the toilet bowl. A container for reagent is in communication with the rinse liquid outlet. Reagent is introduced into the toilet bowl by way of the rinse liquid outlet in timed relationship to introduction of rinse liquid into the toilet bowl.

대표청구항 ▼

A method of operating a vacuum toilet system that comprises a toilet bowl having an outlet opening, a sewer pipe having an interior space, a discharge valve connecting the outlet opening of the toilet bowl to the sewer pipe, a source of partial vacuum for establishing a lower pressure in the interio

A method of operating a vacuum toilet system that comprises a toilet bowl having an outlet opening, a sewer pipe having an interior space, a discharge valve connecting the outlet opening of the toilet bowl to the sewer pipe, a source of partial vacuum for establishing a lower pressure in the interior space of the sewer pipe than in the toilet bowl for forcing waste from the toilet bowl into and along the sewer pipe, means defining a rinse liquid outlet for introducing rinse liquid into the toilet bowl during a flush thereof, and a source of rinse liquid, said method comprising, on each flush of the toilet bowl: (a) delivering rinse liquid from the source to the rinse liquid outlet, (b) adding a reagent to the rinse liquid delivered from the source of rinse liquid, and (c) introducing rinse liquid and reagent into the toilet bowl by way of the rinse liquid outlet, the reagent containing an agent that inhibits formation of deposits of calcium carbonate.