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Patent Searching and Data


Title:
VANE PUMP
Document Type and Number:
Japanese Patent JP2004339987
Kind Code:
A
Abstract:

To provide a vane pump capable of admitting large rotating torque and withstanding large discharge pressure and reduced in size.

In a stuffing box 43 on the inside of the connection part 88 of a bracket 35 with a casing 32, a gland packing 44 prevents fed fluid in the casing 32 from leaking. The connection part 70 of a rotating shaft 34 with a rotor 33 is disposed on the inside of the gland packing 44, and the inner peripheral surface of the gland packing 44 is allowed to abut on the shaft part 48 of the rotor 33. By this, since the length of the rotating shaft 34 can be reduced, a distance A2 between a support position 83 and an acting position 84 is shortened, and the vane pump can be formed compact. In addition, since the rotating shaft 34 can be increased in diameter, a large rotating torque can be admitted, and the vane pump can withstand the large discharge pressure.


Inventors:
EGUCHI JUNICHI
Application Number:
JP2003135780A
Publication Date:
December 02, 2004
Filing Date:
May 14, 2003
Export Citation:
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Assignee:
EGUCHI SANGYO KK
International Classes:
F04C27/00; F04C2/344; (IPC1-7): F04C2/344
Attorney, Agent or Firm:
Keiichiro Saikyo
Minetarou Hirose