Patent · US Active

Device and method for metering water or an aqueous solution in a combustion system

US10876452B2 · kind B2 · utility

0Cited by
2References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 31, 2018
Grant dateDec 29, 2020
Priority date
Expiry dateMar 1, 2039

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF02M51/0682
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A metering device for metering water or an aqueous solution, such as an injector for metering a reducing agent liquid into an exhaust gas stream of a combustion system or an injector for metering water or aqueous solution into a combustion chamber or into an intake manifold of an internal combustion engine. The metering device has an inlet and an outlet for the water or aqueous solution and a shut-off device which is arranged between the inlet and the outlet. At least one electrically operated heating element is arranged in the region of the shut-off device so as to heat and avoid freezing of the liquid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.