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Patent Searching and Data


Title:
SEALING DEVICE FOR OIL INJECTION-TYPE SCREW COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/124880
Kind Code:
A1
Abstract:
A screw compressor of the present invention comprises: a housing having a compression chamber; male and female rotors provided in the compression chamber; a driving shaft for rotating the male and female rotors; and a seal cover across which the driving shaft is provided, and further includes: an oil chamber provided at the seal cover, and returning, to the compression chamber, oil having leaked into the driving shaft; and a breather for injecting external air into the oil chamber. Therefore, the breather is provided at the upper part of the oil chamber and an oil recovery line is provided at the lower part thereof so as to cause a pressure difference between the upper and lower parts of the oil chamber, such that the flow of the oil having leaked into the driving shaft is smoothly recovered in the oil recovery line.

Inventors:
LEE, Jae Young (1701, 11 Nambusunhwan-ro 378-gil,Gangnam-gu, Seoul, 06297, KR)
SON, Kil Won (224-1703, 54 Junganggongwon-ro, Bundang-gu,Seongnam-si, Gyeonggi-do, 13589, KR)
HAN, Yu Sang (112-1802, 174 Seongbok 2-ro, Suji-gu,Yongin-si, Gyeonggi-do, 16809, KR)
Application Number:
KR2018/015907
Publication Date:
June 27, 2019
Filing Date:
December 14, 2018
Export Citation:
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Assignee:
LEE, Jae Young (1701, 11 Nambusunhwan-ro 378-gil,Gangnam-gu, Seoul, 06297, KR)
International Classes:
F04C18/16; F04C29/02
Attorney, Agent or Firm:
KIM, Soon Woong (601, 20 Digital-ro 31-gil,Guro-gu, Seoul, 08380, KR)
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