Corrosion inhibiting coolant filter
US4782891A · kind A · utility
89Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | May 18, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2011/068
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter device for an engine coolant includes a housing with an inlet for inflow of coolant and an outlet for outflow; a flow path extends between the inlet and outlet, a filter in the flow path filters the coolant; a dosage of corrosion inhibitor is disposed in the housing, corrosion inibitor being separated from the flow path by a separating means exposed to coolant in the flow path; the separating means disintegrates by corrosion when coolant in the flow path has a corrosiveness above a predetermined level thereby releasing the dosage of corrosion inhibitor into the coolant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.