Precleaner
US11649791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Sep 17, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04C11/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A precleaner for use in an air intake system is described, the precleaner comprises a cyclone which defines a volume, the cyclone comprising an inlet and an outlet. The inlet and the outlet are arranged to generate a vortex within the volume of the cyclone when the air pressure at the outlet is lower than the air pressure at the inlet. The cyclone further comprises an aperture. The precleaner further comprises a blocking member arranged to move and concomitantly occlude the aperture only when the air pressure at the outlet is lower than the air pressure at the inlet. An air intake system comprising the precleaner is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.