Environmentally friendly alternative refrigerant for HCFC-22

Details Environmentally friendly alternative refrigerant for HCFC-22 Environmentally friendly alternative refrigerant for HCFC-22

2005-09-09

2008-12-02

Silverman, Stanley (Department: 1793)

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

C062S114000, C510S408000

Reexamination Certificate

active

07459101

ABSTRACT:
The present invention discloses ternary mixtures of fluoroethane (HFC-161), pentafluoroethane (HFC-125) and difluoromethane (HFC-32) used as environmentally friendly alternative refrigerants to HCFC-22. The mass ratios of the mixture of each component are 5-60%, 25-50% and 5-50%, respectively. Its ODP is zero, with no depletion potential to the ozone layer. Its GWP is smaller than those of HCFC-22, R407C and R410A. Its working pressure and pressure ratio are close to those of HCFC-22. With few changes to system components, it can be used as a potential substitute refrigerant for HCFC-22.

REFERENCES:
patent: 5403504 (1995-04-01), Bivens et al.
patent: 5531080 (1996-07-01), Hirahara et al.
patent: 5722256 (1998-03-01), Shiflett
patent: 1063301 (1992-08-01), None
patent: 1136065 (1996-11-01), None
patent: 1280165 (2001-01-01), None
patent: 2298866 (1996-09-01), None
patent: 5-17755 (1993-01-01), None
patent: 8-157810 (1996-06-01), None
patent: WO 92/11338 (1992-07-01), None

Affiliated with

Also associated with

Rating

Environmentally friendly alternative refrigerant for HCFC-22 does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Environmentally friendly alternative refrigerant for HCFC-22, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Environmentally friendly alternative refrigerant for HCFC-22 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4034606