Virtual impactors with slit shaped nozzles without slit ends

Details Virtual impactors with slit shaped nozzles without slit ends Virtual impactors with slit shaped nozzles without slit ends

1997-11-25

1999-01-12

Chiesa, Richard L.

Gas separation

Deflector

Impingement baffle

95 32, B01D 4508

Patent

active

058580433

ABSTRACT:
The invention relates to virtual impactors with slit-shaped nozzles. Virtual impactors serve to enrich aerosol particles of certain magnitudes from gases, particularly from ambient air, for the purpose of examining these particles. For very strong enrichments, reaching up to many hundreds of times the initial concentration, very effective multi-stage virtual impactors with hundreds of nozzles have been developed. However, these are difficult to manufacture and to clean. The individual nozzles can be replaced by slits which are easier to manufacture. With slit-shaped nozzles problems with instability at the ends of the slits occur. The invention describes slit-shaped nozzles, the slits of which have no ends because they are designed as curved, closed figures. By contrast with the prior art which relates to circular slits in parallel plates, here any closed figures are represented, including ones which are not in plane-parallel plates.

REFERENCES:
patent: 3616596 (1971-11-01), Campargue
patent: 5425802 (1995-06-01), Burton et al.

Affiliated with

Also associated with

Rating

Virtual impactors with slit shaped nozzles without slit ends does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Virtual impactors with slit shaped nozzles without slit ends, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Virtual impactors with slit shaped nozzles without slit ends will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1509781