Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
VANE PUMP
Document Type and Number:
Japanese Patent JPH06346859
Kind Code:
A
Abstract:

PURPOSE: To transfer a viscous fluid in constant stable flow without generating pulsation.

CONSTITUTION: The inner peripheral surface of a casing 11 for enclosing plural vanes 14, 15 and a rotor 10 is formed of a first to a fourth inner peripheral surface 25-28. The first inner peripheral surface 25 is the circular arc face of a radius R1 with a rotation axis 8 as the center, and the second inner peripheral surface 26 is the circular arc face of a second radius R2 smaller than the first radius R1 with the rotation axis 8 as the center. The third inner peripheral surface 27 is the circular arc face of a radius R3 connecting the respective end parts of the first and second inner peripheral surface 25, 26, and the fourth inner peripheral surface 28 is the circular arc face of a radius R4 connecting the respective end parts P3, P4 of the first and second inner peripheral surface 25, 26. The inner diameters, passing the rotation axis 8, of the respective inner peripheral surface 25-28 are made the same as the length L1, L2 of vanes 14, 15.


More Like This:
JP4636108Vane pump
JP2003286973VANE PUMP
Inventors:
EGUCHI JUNICHI
Application Number:
JP1993000142319
Publication Date:
December 20, 1994
Filing Date:
June 14, 1993
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
EGUCHI SANGYO KK
International Classes:
F04C2/344; F04C13/00; F04C14/00; F04C15/00; F04C15/06; (IPC1-7): F04C2/344; F04C13/00; F04C15/04
Domestic Patent References:
JPS63117189A1988-05-21
Attorney, Agent or Firm:
西教 圭一郎 (外2名)