UNIAXIAL ECCENTRIC SCREW PUMP

Title:

UNIAXIAL ECCENTRIC SCREW PUMP

Document Type and Number:

WIPO Patent Application WO/2016/013504

Kind Code:

A1

Abstract:

[Problem] The purpose of the present invention is to provide a uniaxial eccentric screw pump which is compact in the length direction and is less likely to suffer from such problems as stick slippage and damage to a shaft joint. [Solution] The uniaxial eccentric screw pump (10) has: a driving force transmission part (72) which is rotated by driving force of a driving machine (80); a rotor (60) which is constituted by a male screw shaft body; a stator (50) in which the rotor (60) can be inserted, said stator (50) having an inner circumferential surface (52) that is formed into a female screw ; and a shaft joint (76) which joins the driving force transmission part (72) with the rotor (60) in an eccentrically rotatable manner such that the rotor (60) revolves along the inner circumferential surface (52) of the stator (50) while rotating inside the stator (50). The shaft joint (76) is constituted by a flexible shaft joint and has elasticity in the axial direction.

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Inventors:

TANAKA KEI (JP)

Application Number:

PCT/JP2015/070511

Publication Date:

January 28, 2016

Filing Date:

July 17, 2015

Export Citation:

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Assignee:

HEISHIN LTD (JP)

International Classes:

F04C2/107; F04C15/00; F16D3/74

Foreign References:

JP2000145660A	2000-05-26
JP2006139230A	2006-06-01

Attorney, Agent or Firm:

Sakiyama 博教 (JP)
SAKIYAMA, Hironori (JP)

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