Title:
ギヤポンプ
Document Type and Number:
Japanese Patent JP4289155
Kind Code:
B2
Abstract:
A bottom portion of an intake port is provided with a sloped bottom surface formed of a plane such that sloped bottom surface approaches the side surfaces of external teeth and internal teeth from an upstream side to a downstream side in rotational direction of two rotors. Fluid that flows in the intake port is regulated by the sloped bottom surface and smoothly guided into individual inter-teeth chambers that are expanding. Since the sloped bottom surface on the bottom portion of the intake port is formed of a plane without spiral or twisting, design and manufacturing of a gear pump is extremely easy.
Inventors:
Nobukazu Ike
Satoru Kasuya
Masaaki Nishida
Masahiro Hayabuchi
Satoru Kasuya
Masaaki Nishida
Masahiro Hayabuchi
Application Number:
JP2003549738A
Publication Date:
July 01, 2009
Filing Date:
December 03, 2002
Export Citation:
Assignee:
Aisin AW Co., Ltd.
International Classes:
F04C2/10; F04C2/08; F04C15/06
Domestic Patent References:
| JP2588113Y2 | ||||
| JP94569A | ||||
| JP2854903B2 | ||||
| JP527210U |
Attorney, Agent or Firm:
Kobayashi Osamu
Kazusa Tomita
Kazusa Tomita