Air conditioning apparatus

Details Air conditioning apparatus Air conditioning apparatus

2011-08-02

2011-08-02

Jules, Frantz F (Department: 3784)

Refrigeration

With indicator or tester

Condition sensing

C062S125000, C062S126000, C062S127000, C062S160000, C062S208000, C062S209000, C062S225000, C062S006000

Reexamination Certificate

active

07987679

ABSTRACT:
By studying or storing refrigerating cycle characteristics of an air conditioning apparatus at the normal time and comparing them with refrigerating cycle characteristics acquired from the air conditioning apparatus at the time of operation, it becomes possible to exactly and accurately diagnose normality or abnormality of the air conditioning apparatus under any installation conditions and environmental conditions, which eliminates operations of inputting a difference between apparatus model names, a piping length, a height difference, etc at the time of apparatus installation. Accordingly, it aims at shortening the time of judging normality or abnormality, and improving the operability. It is characterized by calculating and comparing a measured value (a value of liquid phase temperature efficiency εL(SC/dTc) calculated from temperature information) concerning an amount of a liquid phase part of the refrigerant in the high-pressure-side heat exchanger with a theoretical value (a value of liquid phase temperature efficiency εL(1−EXP(−NTUR)) calculated from the transfer unit number NTURat refrigerant side).

REFERENCES:
patent: 4499739 (1985-02-01), Matsuoka et al.
patent: 4835980 (1989-06-01), Oyanagi et al.
patent: 5214918 (1993-06-01), Oguni et al.
patent: 5626026 (1997-05-01), Sumida et al.
patent: 5724822 (1998-03-01), Jonsson et al.
patent: 6463747 (2002-10-01), Temple
patent: 6571566 (2003-06-01), Temple et al.
patent: 7159408 (2007-01-01), Sadegh et al.
patent: 7685830 (2010-03-01), Thybo et al.
patent: 2002/0083723 (2002-07-01), Demuth et al.
patent: 2003/0019221 (2003-01-01), Rossi et al.
patent: 2003/0055603 (2003-03-01), Rossi et al.
patent: 1 270 292 (2003-01-01), None
patent: 2-110270 (1990-04-01), None
patent: 03-186170 (1991-08-01), None
patent: 04-148170 (1992-05-01), None
patent: 6-159869 (1994-06-01), None
patent: 7-021374 (1995-01-01), None
patent: 07-218058 (1995-08-01), None
patent: 9-113079 (1997-05-01), None
patent: 10-089780 (1998-04-01), None
patent: 11-083250 (1999-03-01), None
patent: 2001-133011 (2001-05-01), None
patent: 2003-161535 (2003-06-01), None
patent: 2003-322380 (2003-11-01), None
patent: 2005-257219 (2005-09-01), None
Tassou et al., “Fault Diagnosis and Refrigerant Leak Detection in Vapour Compression Refrigeration Systems” International Journal of Refrigeration, 2005, vol. 28, No. 5, pp. 680-688, XP02578312.
Supplementary European Search Report in corresponding Application No. 05710633.8—1266 dated Mar. 18, 2009.
Y. Shishimo et al., “Compact Heat Exchanger”, Nikkan Kogyo Shimbun, Ltd., 1992, pp. 44-45 and 70-73 (with partial English translation).
“Two-Phase Flow Pressure Drop”, 4 pages, http://www.energy.kth.se/courses/4a1625/files (and web page of KTH, The Royal Institute of Technology).
International Search Report dated Jun. 14, 2005.
Written Opinion of the International Searching Authority dated Jun. 14, 2005.
Japanese Patent Office dated Jul. 28, 2009, and English-language translation thereof.

Affiliated with

Also associated with

Rating

Air conditioning apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air conditioning apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air conditioning apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2691088