Title:
UNIAXIAL ECCENTRIC SCREW PUMP
Document Type and Number:
WIPO Patent Application WO/2021/059641
Kind Code:
A1
Abstract:
This uniaxial eccentric screw pump is provided with: a stator 8 having a through hole 8a of which an inner surface is formed in the shape of a female screw thread; a rotor 14, which is a male screw thread shaped shaft body that is inserted through the through hole 8a of the stator 8; a plurality of shims 9 which are disposed on the radially outer side of the stator 8 over a range from one end of the stator 8 to the other end thereof, are in surface contact with an outer surface of the stator 8, are capable of compressing the stator 8 by moving radially inward relative to the stator 8, and which have, on an outer surface, an inclined surface 18 which is inclined radially inward or outward toward one end; and an adjusting member 10 having a pressing portion 26 which is capable of moving in the axial direction relative to the stator 8, and which is capable of pressing the inclined surfaces 18 of the shims 9.
Inventors:
SUHARA NOBUHISA (JP)
SATO TAKASHI (JP)
SATO TAKASHI (JP)
Application Number:
PCT/JP2020/025449
Publication Date:
April 01, 2021
Filing Date:
June 29, 2020
Export Citation:
Assignee:
HEISHIN LTD (JP)
International Classes:
F04C2/107
Foreign References:
| US3084631A | 1963-04-09 | |||
| JPS5717189B2 | 1982-04-09 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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