Electricity: motive power systems – Reciprocating or oscillating motor
Reexamination Certificate
2006-04-04
2008-08-05
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Reciprocating or oscillating motor
C417S044100
Reexamination Certificate
active
07408310
ABSTRACT:
Disclosed are an apparatus for controlling a driving of a reciprocating compressor capable of enhancing an efficiency by differently controlling a frequency and a stroke voltage according to a load size and capable of reducing consumption power, and a method thereof. The apparatus comprises a controlling unit for judging a load size by comparing a phase difference between a detected current and a stroke with a reference phase difference, and outputting a frequency control signal and a stroke control signal according to the judged load size.
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English language Abstract of KR 10-2003-0012262, Feb. 12, 2003.
Choi Ki-Chul
Hong Eon-Pyo
Lee Chel-Woong
Lee Myung-Ryul
Park Kyeong-Bae
Brandt Michael
Donovan Lincoln
Greenblum & Bernstein P.L.C.
LG Electronics Inc.
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