Title:
VANE PUMP
Document Type and Number:
WIPO Patent Application WO/2018/008289
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a vane pump (1) configured so that the durability of a coupling (5) can be ensured. The vane pump (1) is provided with: a rotor (3) having a rotor-side engagement protrusion (311); and a coupling (5) mounted between the rotor (3) and a camshaft (95) which has a camshaft-side engagement recess (950). The direction of the rotation axis (X) of the rotor (3) is defined as an axial direction, and the direction of rotation of the rotor (3) is defined as a rotational direction (θ). The coupling (5) has: a coupling body (50); an engagement recess (51) formed in the outer peripheral surface of the coupling body (50) and engaging with the rotor-side engagement protrusion (311); and an engagement protrusion (52) protruding in the axial direction from the coupling body (50) and engaging with the camshaft-side engagement recess (950). The vane pump (1) is provided with durability sections (51c, 54, 55) for preventing a deterioration in the durability of the coupling (5) caused by transmission of rotational force.
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Inventors:
MIZUNO KAZUYA (JP)
IKEDA SATOSHI (JP)
NISHIDA SYUHEI (JP)
NAKAMUTA KEN (JP)
IKEDA SATOSHI (JP)
NISHIDA SYUHEI (JP)
NAKAMUTA KEN (JP)
Application Number:
PCT/JP2017/019749
Publication Date:
January 11, 2018
Filing Date:
May 26, 2017
Export Citation:
Assignee:
TAIHO KOGYO CO LTD (JP)
International Classes:
F04C18/344; F04C25/02; F04C29/00
Foreign References:
| JP2010101209A | 2010-05-06 | |||
| JP2005163607A | 2005-06-23 | |||
| JPH0261381A | 1990-03-01 | |||
| JP2012188976A | 2012-10-04 | |||
| JP2001286101A | 2001-10-12 | |||
| JPS6374736U | 1988-05-18 | |||
| JPH11315846A | 1999-11-16 |
Attorney, Agent or Firm:
HIGASHIGUCHI Michiaki et al. (JP)
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