Patent · US Active

Particle precipitator

US9993828B2 · kind B2 · utility

1Cited by

9References

6Claims

0Family size

Assignee

Garrett Thermal Systems Limited · GB

Inventors

Kemal Ajay · Melbourne, AU
Brian Alexander · Melbourne, AU

Key dates

Filing date	Mar 3, 2011
Grant date	Jun 12, 2018
Priority date	—
Expiry date	Sep 24, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB03C2201/24
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A particle separation system for separating particles in an airflow upstream of a detection chamber in an aspirating smoke detector is disclosed. The particle separation system includes an airflow path for directing the airflow from an inlet to an outlet. The airflow path includes a first airflow path section in a first direction and a second airflow path section in a second direction, the first and second directions being different relative to each other. The airflow path also includes at least one electrically charged surface such that the airflow undergoes electrostatic precipitation as it traverses the airflow path. A method of separating particles in an airflow upstream of a detection chamber in an aspirating smoke detector is also disclosed.

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