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US 7,395,710 B2Granted
System and method for monitoring a filter
AssigneeCaterpillar Inc.
InventorMohamed I. Daoud
Life of this patent
Estimating the term…
Abstract
A monitoring assembly for a filter may include a transmitter, arranged on a first side of the filter, configured to emit sound waves. The monitoring assembly may also include a first receiver, arranged on the first side of the filter, configured to receive the sound waves. The monitoring assembly may further include a second receiver, arranged on a second side of the filter, configured to receive the sound waves.
Claims20
A monitoring assembly for a filter, comprising:
- a transmitter, arranged on a first side of the filter, configured to emit sound waves;
- a first receiver, arranged on the first side of the filter, configured to receive the sound waves;
- and
- a second receiver, arranged on a second side of the filter, configured to receive the sound waves.
1 more element
A method of monitoring a particulate filter, comprising:
- transmitting sound waves from a first side of the filter with a transmitter;
- receiving the sound waves on the first side of the filter with a first receiver;
- receiving the sound waves on a second side of the filter with a second receiver;
- and
- determining at least one value indicative of a variation between the sound waves received on the first side and the sound waves received on the second side.
2 more elements
An engine assembly, comprising:
- an engine having an exhaust line;
- a particulate filter operatively coupled to the exhaust line;
- and
- an acoustic apparatus operatively coupled to at least one of the exhaust line and the particulate filter, the acoustic apparatus comprising:
- a transmitter, arranged on a first side of the filter, configured to emit sound waves,
- a first receiver, arranged on the first side of the filter, configured to receive the sound waves, and
- a second receiver, arranged on a second side of the filter, configured to receive the sound waves.
4 more elements
Dependencies are inferred from the claim text.