Title:
GEAR PUMP
Document Type and Number:
Japanese Patent JP2019157709
Kind Code:
A
Abstract:
To provide a gear pump which can reduce the pressure pulsation of fluid discharged from the gear pump while being reduced in a size of a physique.SOLUTION: A gear pump 1 comprises a first gear group 20 and a second gear group 30, and transports fluid by using an engagement portion of the first gear group and the second gear group. An engagement phase of the first gear group and an engagement phase of the second gear group are different from each other, and a side face 23 of a first drive gear and a side face 33 of a second drive gear are integrated to each other in a mutually-contacting state by the connection of the first drive gear 21 and the second drive gear 31 by first connecting means 50a. A side face 24 of a first driven gear and a side face 34 of a second driven gear are integrated to each other in a mutually-contacting state by the connection of the first driven gear 22 and the second driven gear 32 by second connecting means 50b.SELECTED DRAWING: Figure 1
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Inventors:
YAHAGI SHUICHI
TAMIBE TOSHITAKA
TAMIBE TOSHITAKA
Application Number:
JP2018043284A
Publication Date:
September 19, 2019
Filing Date:
March 09, 2018
Export Citation:
Assignee:
ISUZU MOTORS LTD
International Classes:
F04C2/18; F04C11/00; F04C15/00; F04C15/06
Domestic Patent References:
| JPH06200880A | 1994-07-19 | |||
| JP2001336610A | 2001-12-07 | |||
| JPS5655794U | 1981-05-14 | |||
| JPS5182005U | 1976-07-01 |
Foreign References:
| US5755566A | 1998-05-26 |
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Masao Sakaizawa
Yuki Yamada
Takayoshi in the daytime
Masao Sakaizawa
Yuki Yamada