Title:
INTERNAL GEAR PUMP
Document Type and Number:
WIPO Patent Application WO/2019/107537
Kind Code:
A1
Abstract:
Provided is an internal gear pump wherein a casing and a cover can be easily positioned to each other when the casing and the cover are mounted to each other, and separation or dislodgement of both members can be prevented. In this internal gear pump 1, a casing 5 and/or cover 6 is a formed body formed from a resin composite or the like. The casing 5 and the cover 6 are affixed to each other by fitting a plurality of protrusions protruding from one of the members, to the other member. The protrusions are the portions of metallic bushes 9, which protrude from the casing 5, the metallic bushes 9 being affixed to the casing 5, and the casing 5 and the cover 6 are integrated by bolts 13 inserted in the metallic bushes 9 which straddle both the members.
Inventors:
SONOZAKI TOMOKAZU (JP)
AKAI HIROSHI (JP)
HATTORI KEI (JP)
ITO TAKAYUKI (JP)
AKAI HIROSHI (JP)
HATTORI KEI (JP)
ITO TAKAYUKI (JP)
Application Number:
PCT/JP2018/044154
Publication Date:
June 06, 2019
Filing Date:
November 30, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F04C2/10; F04C15/00
Foreign References:
| JP2015148177A | 2015-08-20 | |||
| JP2010236514A | 2010-10-21 | |||
| JP2009133421A | 2009-06-18 | |||
| JP2014051964A | 2014-03-20 |
Other References:
See also references of EP 3719318A4
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
Download PDF: