Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Reexamination Certificate
2004-12-23
2010-02-23
Kramer, Devon C (Department: 3746)
Pumps
Condition responsive control of pump drive motor
By control of electric or magnetic drive motor
C417S044100, C417S045000, C417S053000, C417S212000, C318S607000
Reexamination Certificate
active
07665972
ABSTRACT:
An apparatus and a method for controlling an operation of a reciprocating compressor which can improve operational efficiency of the reciprocating compressor are provided. The apparatus for controlling the operation of the reciprocating compressor includes a resonance frequency operation unit for calculating a mechanical resonance frequency of the reciprocating compressor, an operating frequency reference value generation unit for comparing the calculated mechanical resonance frequency with a current operating frequency of the reciprocating compressor, and generating an operating frequency reference value according to the comparison result, and a controller for controlling a motor of the reciprocating compressor according to the generated operating frequency reference value.
REFERENCES:
patent: 5980211 (1999-11-01), Tojo et al.
patent: 6514047 (2003-02-01), Burr et al.
patent: 6746211 (2004-06-01), Kwon et al.
patent: 6977474 (2005-12-01), Ueda et al.
patent: 2003/0026702 (2003-02-01), Yoo et al.
patent: 2003/0108430 (2003-06-01), Yoshida et al.
patent: 2003/0164691 (2003-09-01), Ueda et al.
patent: 2003/0175125 (2003-09-01), Kwon et al.
patent: 2003/0180151 (2003-09-01), Jeun
patent: 2004/0005222 (2004-01-01), Yoshida et al.
patent: 2005/0111987 (2005-05-01), Yoo et al.
patent: 1400388 (2003-03-01), None
patent: 1400389 (2003-03-01), None
patent: 1459921 (2003-12-01), None
patent: 10226491 (2003-02-01), None
patent: 10361021 (2005-01-01), None
patent: 9-137781 (1997-05-01), None
patent: 11-336661 (1999-12-01), None
patent: 2001-165059 (2001-06-01), None
patent: 2002-161863 (2002-06-01), None
patent: 2002-354864 (2002-12-01), None
patent: 2003-56470 (2003-02-01), None
patent: WO 2004094826 (2004-11-01), None
Kim Hyung-Jin
Lee Chel-Woong
Sung Ji-Won
Yoo Jae-Yoo
Birch & Stewart Kolasch & Birch, LLP
Kramer Devon C
LG Electronics Inc.
Weinstein Leonard J
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