Title:
VANE-TYPE HYDRAULIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/057752
Kind Code:
A1
Abstract:
A vane pump (1) comprises a front vane case (40), a rear vane case (50), a pump housing (60), a pump cover (70), a drive shaft (30), a rotationally driven rotor (10), and vanes (20) provided in slots (13). The vanes (20), the front vane case (40), and the rear vane case (50) are provided with engagement grooves and guide protrusions (46, 52), and the engagement grooves and the guide protrusions (46, 52) engage with each other. The engagement grooves and the guide protrusions (46, 52) are configured so that, in response to the rotation of the rotor (10), the engagement grooves and the guide protrusions (46, 52) move along a proximity inner peripheral surface (42b) with the vanes (20) located in proximity to the proximity inner peripheral surface (42b). Pump chambers are defined and formed by the vanes (20) located in proximity to the proximity inner peripheral surface (42b).
Inventors:
KOBAYASHI YUTA (JP)
Application Number:
PCT/JP2011/005809
Publication Date:
April 25, 2013
Filing Date:
October 18, 2011
Export Citation:
Assignee:
TBK CO LTD (JP)
KOBAYASHI YUTA (JP)
KOBAYASHI YUTA (JP)
International Classes:
F04C2/344; F04C14/22
Foreign References:
| JPS63124885A | 1988-05-28 | |||
| JPS5670183U | 1981-06-10 | |||
| JPS49132607A | 1974-12-19 | |||
| JPS482402A | ||||
| JP2007146839A | 2007-06-14 |
Other References:
See also references of EP 2778418A4
Attorney, Agent or Firm:
OHNISHI, Shogo (JP)
Shogo Onishi (JP)
Shogo Onishi (JP)
Download PDF:
Claims: