Method of detecting clogging of an air filter and ventilation system employing such a method
US6582295B1 · kind B1 · utility
25Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jun 29, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2003/0683
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of measuring clogging of an air filter in a system for ventilation, air conditioning and/or heating of a passenger compartment of a motor vehicle, includes starting up an electric motor (11) driving a fan, measuring a characteristic value of the electric motor for driving the air passing through the filter (3) the clogging of which is being measured; comparing the measured value with a calibration value, to deduce therefrom a measure of the clogging of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.