Fuel module for engine having service valve assembly for common drain from primary and secondary filters
US11946439B2 · kind B2 · utility
0Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 2022 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Jun 8, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M37/44
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter module for filtering fuel in an engine system includes a primary filter, a secondary filter, and a module housing. A drain valve is movable between a closed position blocking a drain port in the module housing, and an open position. A service valve assembly is positioned at least partially within a cross passage in the module housing and adjustable from a closed configuration blocking a primary-side fuel passage from a secondary-side fuel passage in the module housing, to an open configuration, to drain fluids from the filter module by way of the single drain port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.