Filter drier
US4637881A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1984 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Dec 3, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter drier is disclosed for installation in a liquid refrigerant line of a refrigeration system, the filter drier comprising a housing having an inlet at one end thereof and an outlet at the other end thereof. The liquid refrigerant is discharged from the inlet into the housing in a jet and a perforate plate is provided within the housing against which this jet impinges for diffusing the refrigerant jet substantially across the width of the housing. A filter filters the diffused liquid refrigerant and a bed of desiccant beads is provided with a perforate divider between the filter and the desiccant. A perforate support plate supports the desiccant bed and a second filter bears on the downstream perforate support plate with the desiccant being engageable with the second filter. A spring is interposed between the perforate divider and the housing upstream from the desiccant bed so that the spring applies a resilient, compressive force on the desiccant bearing on the second filter thereby to maintain the desiccant beads in a compacted state such that the diffuser plate and the first filter prevents the jet of liquid refrigerant from impinging directly on the desiccant beads thereb…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.