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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2012/161514
Kind Code:
The present invention relates to a control valve for a variable capacity compressor, comprising: a valve body having a crank-chamber port; a discharge port; a suction port; a control channel formed in the interior thereof so as to communicate the crank-chamber port and the discharge port with each other; a valve body formed by a first bleeding channel formed so as to communicate the crank-chamber port and the suction port with each other; an operating unit provided within the valve body and which has a second bleeding channel communicated from a center area toward a side surface thereof; and a driving unit provided within the valve body and connected to the operating unit so as to enable the operating unit to reciprocally move according to a current applied by an external source. When the compressor is in a normal state, the control channel opens and the first bleeding channel and the second bleeding channel close so as to enable a refrigerant in a discharge chamber to flow through the control channel and enter the crank chamber. When the compressor is in a bleeding state, the operating unit moves to close the control channel, and the first bleeding channel and the second bleeding channel are communicated with each other and opened, so that the refrigerant in the crank chamber flows through the first bleeding channel and the second bleeding channel and enters a suction chamber, thereby lowering the pressure in the crank chamber. Accordingly, a delay in the operation of the compressor caused by a liquid refrigerant may be prevented, and the operability of the compressor in an initial operating stage may be improved even when the compressor has not been used for a long period of time, thereby improving the performance of the compressor. Further, a non-magnetic material may be easily and firmly fixed so as to enable easy mass production and improved productivity.

LEE, Yong Ju (#623-205, Dongbo Apt. Sinnamu-gil, Yeongtong-dong,Yeongtong-gu, Suwon-si, Gyeonggi-do 443-470, 443-470, KR)
이용주 (443-470 경기도 수원시 영통구 영통동 신나무길 동보아파트 623동 205호, Gyeonggi-do, 443-470, KR)
Application Number:
Publication Date:
January 24, 2013
Filing Date:
May 23, 2012
Export Citation:
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DOOWON TECHNICAL COLLEGE (678 Jangwon-ri, Juksan-myeon Anseong-si, Gyeonggi-do 456-893, 456-893, KR)
학교법인 두원학원 (456-893 경기도 안성시 죽산면 장원리 678, Gyeonggi-do, 456-893, KR)
DOOWON ELECTRONICS CO., LTD (4-16, Wolseon-gil Yeongin-myeon, Asan-si, Chungcheongnam-do 336-821, 336-821, KR)
주식회사 두원전자 (336-821 충청남도 아산시 영인면 월선길 4-16, Chungcheongnam-do, 336-821, KR)
International Classes:
F04B27/14; F04B17/04; F04B45/02
Foreign References:
Attorney, Agent or Firm:
TAEBAEK INTELLECTUAL PROPERTY LAW FIRM (906 Kolon Techno Valley, 60-4 Gasan-dong Geumcheon-gu, Seoul 153-770, 153-770, KR)
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