Title:
DRY VACUUM PUMP HAVING SCREW ROTOR AND GROOVE
Document Type and Number:
WIPO Patent Application WO/2017/122894
Kind Code:
A1
Abstract:
The present invention relates to a dry vacuum pump having a screw rotor and a groove, the dry vacuum pump comprising: a driving screw having a rotor that rotates about a driving shaft; a driven screw having a rotor that rotates about a driven shaft, wherein the driven screw is engaged with the driving screw to rotate together with the same; a casing in which the driving screw and the driven screw are accommodated; and two or more grooves on the inner surface of the casing, wherein the driving screw has first to fifth driving screw rotors sequentially arranged in the direction from a fluid intake portion to a fluid discharge portion, and the driven screw has first to fourth grooves sequentially arranged in the direction from the fluid intake portion to the fluid discharge portion. Accordingly, the dry vacuum pump has an effect of enhancing the pump efficiency, achieving a high vacuum through high speed under the same power, and simultaneously saving power.
More Like This:
| WO/1991/010045 | SCREW COMPRESSOR FOR INTERNAL COMBUSTION ENGINES |
Inventors:
YEE YOUNG SU (KR)
Application Number:
PCT/KR2016/008552
Publication Date:
July 20, 2017
Filing Date:
August 03, 2016
Export Citation:
Assignee:
YEE YOUNG SU (KR)
International Classes:
F04C18/16; F04C25/02; F04C29/00
Foreign References:
| KR101074633B1 | 2011-10-18 | |||
| KR20020036746A | 2002-05-16 | |||
| KR20050105365A | 2005-11-04 | |||
| JP2003214357A | 2003-07-30 | |||
| KR101286187B1 | 2013-07-15 |
Attorney, Agent or Firm:
PATENT LAW FIRM (KR)
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