Title:
RETURN FILTER
Document Type and Number:
WIPO Patent Application WO/2017/073259
Kind Code:
A1
Abstract:
In order to prevent discharge of bubbles near the bottom surface of a tank, an approximately cylindrical first discharge tube (31) having an opening at both ends is inserted into an outflow hole (10c) of a filter case (19) and is disposed to project towards the bottom surface of the tank. An approximately cylindrical second discharge tube (32) is provided to cover the first discharge tube (31). The second discharge tube (32) is disposed such that a first end (32a) contacts the bottom surface (10b) of the filter case and so as to project from the bottom surface (10b) of the filter case towards the bottom surface of the tank. The leading end (32b) of the second discharge tube (32) is covered by a bottom surface cover (32c), and multiple discharge holes (32d) are formed in a region near the upper end of the lateral surface. For that reason, oil discharged from the outflow hole (10c) flows downwards through the first discharge tube (31), then flows upwards between the first discharge tube (31) and the second discharge tube (32), and is discharged from the region near the upper end of the second discharge tube (32).
Inventors:
OSHITA TATSUHIRO (JP)
TAKU MEIHO (JP)
ISHIZUKA MAKOTO (JP)
TAKU MEIHO (JP)
ISHIZUKA MAKOTO (JP)
Application Number:
PCT/JP2016/079425
Publication Date:
May 04, 2017
Filing Date:
October 04, 2016
Export Citation:
Assignee:
YAMASHIN-FILTER CORP (JP)
International Classes:
F15B1/26; B01D24/38; B01D29/01; B01D29/07; B01D29/88; F15B21/041
Foreign References:
| JP5796068B2 | 2015-10-21 |
Other References:
See also references of EP 3369942A4
Attorney, Agent or Firm:
SAKATA Yukari (JP)
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