Oil deterioration detector
First Claim
1. An oil deterioration detector for detecting deterioration of an oil, comprising:
- a sensitive electrode having an electrical potential that varies in correspondence with a pH level of the oil;
a reference electrode associated with said sensitive electrode;
an electrically conductive housing accommodating said sensitive electrode, said reference electrode, and the oil;
a potential difference detector for detecting oil deterioration by detecting a potential difference between said sensitive electrode and said reference electrode, wherein one of said sensitive electrode and said reference electrode has a reference electrical potential equal to an electrical potential of said electrically conductive housing,wherein said electrically conductive housing is a metallic oil device for circulating oil in an automobile,wherein one of said reference electrode and said sensitive electrode is integrally formed with and comprises a part of said metallic oil device, and the other of said reference electrode and said sensitive electrode is electrically insulated from said one of said reference electrode and said sensitive electrode and said metallic oil device.
1 Assignment
0 Petitions
Accused Products
Abstract
An oil deterioration detector comprising a sensitive electrode whose electric potential varies in response to acidity and/or basicity of oil to be measured, and a reference electrode associated with this sensitive electrode. An electrically conductive housing accommodates the sensitive electrode and the reference electrode together with the oil. A potential difference detector detects oil deterioration by measuring a potential difference between the sensitive electrode and the reference electrode. And, an insulating member is interposed between these electrodes and the electrically conductive housing for electrically insulating these electrodes from the electrically conductive housing. The reference electrode is grounded together with the electrically conductive housing. An insulating, hydrophilic porous member would be interposed between the sensitive electrode and the reference electrode.
31 Citations
19 Claims
-
1. An oil deterioration detector for detecting deterioration of an oil, comprising:
-
a sensitive electrode having an electrical potential that varies in correspondence with a pH level of the oil; a reference electrode associated with said sensitive electrode; an electrically conductive housing accommodating said sensitive electrode, said reference electrode, and the oil; a potential difference detector for detecting oil deterioration by detecting a potential difference between said sensitive electrode and said reference electrode, wherein one of said sensitive electrode and said reference electrode has a reference electrical potential equal to an electrical potential of said electrically conductive housing, wherein said electrically conductive housing is a metallic oil device for circulating oil in an automobile, wherein one of said reference electrode and said sensitive electrode is integrally formed with and comprises a part of said metallic oil device, and the other of said reference electrode and said sensitive electrode is electrically insulated from said one of said reference electrode and said sensitive electrode and said metallic oil device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification