Title:
PACKAGE-TYPE ROTARY PUMP UNIT
Document Type and Number:
WIPO Patent Application WO/2023/286466
Kind Code:
A1
Abstract:
Provided is a package-type rotary pump unit that enables high pump performance to be maintained and prolongs the service life of a device by making it possible to prevent the internal air within a sealed housing from becoming overheated even when a rotary pump enclosed in the sealed housing is used in a range in which the vacuum degree as a vacuum pump is high. The package-type rotary pump unit comprises an electric rotary pump 200 equipped with an electric motor 3 and a rotary pump 2 for taking in and discharging a gas, and a sealed housing 1 in which the electric rotary pump 200 is enclosed. The package-type rotary pump unit additionally comprises: a liquid cooling heat exchanger 5 that is arranged in the interior of the sealed housing 1 and is cooled by receiving a supply of coolant from a coolant supply source 4 arranged outside of the sealed housing 1; and a blowing device 6 that is arranged in the interior of the sealed housing 1 and blows internal air within the sealed housing 1 toward the liquid cooling heat exchanger 5 so as to cool the internal air, said internal air including heated air generated as a result of the air around the rotary pump 2 being heated by operation of the rotary pump 2.
Inventors:
FUKUSHIMA KAZUKI (JP)
HASEBE TAKAMASA (JP)
YOSHIDA YOSUKE (JP)
HARAYAMA SHINGO (JP)
HASEBE TAKAMASA (JP)
YOSHIDA YOSUKE (JP)
HARAYAMA SHINGO (JP)
Application Number:
PCT/JP2022/021492
Publication Date:
January 19, 2023
Filing Date:
May 26, 2022
Export Citation:
Assignee:
ORION MACHINERY CO LTD (JP)
International Classes:
F04C29/04; F04B39/06; F04C18/18
Foreign References:
| JP2008255810A | 2008-10-23 | |||
| JPH0612784U | 1994-02-18 | |||
| JPS52118604A | 1977-10-05 | |||
| JP2016067108A | 2016-04-28 | |||
| JPH04203388A | 1992-07-23 | |||
| JP2005509786A | 2005-04-14 |
Attorney, Agent or Firm:
KOBAYASHI Tsunenori (JP)
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