Refrigeration – With indicator or tester – Condition sensing
Reexamination Certificate
2008-05-22
2011-10-25
Jules, Frantz F. (Department: 3784)
Refrigeration
With indicator or tester
Condition sensing
C062S127000, C062S157000, C062S158000, C062S178000, C062S180000, C062S228100, C062S228300, C062S228400, C062S228500, C062S231000, C702S001000, C702S033000, C702S034000, C702S041000, C702S187000, C702S189000, C700S299000, C700S300000, C374S141000, C374S143000, C374S016000, C374S174000, C374S134000
Reexamination Certificate
active
08042347
ABSTRACT:
A compressor inlet pressure estimation apparatus for a refrigeration cycle system is disclosed. An electronic control unit14uses Tefin_lag(N) as an actual corrected temperature Tefin_AD(N) during a period Tp1included in the timing t1to t2. During a period Tp2included in the timing t1to t2, Tefin_fwd(N) is used as the actual corrected temperature Tefin_AD(N). Thus, a highly accurate corrected temperature Tefin_AD(N) can be determined over the on period (t1to t2) of a compressor2. In addition, Tefin_fwd(N) is used as the actual corrected temperature Tefin_AD(N) during the off period (t2to3) of the compressor2. As a result, a highly accurate corrected temperature Tefin_AD(N) can be determined over the whole period including the on and off periods of the compressor2. In this way, a highly accurate estimated value Ps_es(N) of the refrigerant inlet pressure of the compressor2can be determined.
REFERENCES:
patent: 4909043 (1990-03-01), Masauji et al.
patent: 5189611 (1993-02-01), Petzold et al.
patent: 5291390 (1994-03-01), Satou
patent: 5902346 (1999-05-01), Cullen et al.
patent: 6237681 (2001-05-01), Takano et al.
patent: 7392659 (2008-07-01), Hong et al.
patent: 2003/0213256 (2003-11-01), Ueda et al.
patent: 2005/0217292 (2005-10-01), Onishi et al.
patent: 1 489 370 (2004-12-01), None
patent: A-61-91706 (1986-05-01), None
patent: A-4-329408 (1992-11-01), None
patent: A-10-153353 (1998-06-01), None
patent: A-2000-142094 (2000-05-01), None
patent: A-2005-282972 (2005-10-01), None
patent: A-2007-140321 (2007-06-01), None
Office Action dated Mar. 3, 2009 in corresponding Japanese patent application No. 2007-140320 (and English translation).
U.S. Appl. No. 12/153,709, May 22, 2008, Sawada et al.
Hijikata Yasutane
Sawada Yoshikatsu
DENSO CORPORATION
Jules Frantz F.
Posz Law Group , PLC
Rahim Azim
LandOfFree
Compressor inlet pressure estimation apparatus for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compressor inlet pressure estimation apparatus for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compressor inlet pressure estimation apparatus for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4257764