Lubricant deterioration detection device and lubricant deterioration state evaluation method
AssigneeNsk Ltd.
InventorsTakenobu Inaba, Koichi Hachiya, Taisuke Maruyama
Life of this patent
Estimating the term…
Abstract
A lubricant deterioration detection device of the present invention includes a gas sensor that selectively detects a carbonyl compound. The gas sensor is configured to detect the carbonyl compound from at least one of formaldehyde, acetaldehyde, propanal, butanal, pentanal, n-hexanal, n-heptanal, formic acid, and acetic acid. The detection deterioration device further includes an oil removal portion that removes an oil mist generated from the lubricant.
Claims7
A lubricant deterioration detection device comprising a gas sensor configured to detect a carbonyl compound,
- wherein the gas sensor is configured to detect the carbonyl compound selected from at least one of formaldehyde, acetaldehyde, propanal, butanal, pentanal, n-hexanal, n-heptanal, formic acid, and acetic acid, and
- wherein the detection deterioration device further comprises an oil removal portion that removes an oil mist generated from the lubricant during operation of the rolling bearing in the rolling bearing due to lubricant deterioration.
A lubricant deterioration state evaluation method comprising:
- detecting a carbonyl compound selected from at least one of formaldehyde, acetaldehyde, propanal, butanal, pentanal, n-hexanal, n-heptanal, formic acid, and acetic acid by a gas sensor,
- wherein a gas is introduced into a gas sensor after an oil mist generated from the lubricant during operation of the rolling bearing in the rolling bearing due to lubricant deterioration is removed from the gas by an oil removal portion.
Dependencies are inferred from the claim text.