Title:
INTERNAL GEAR TYPE PUMP
Document Type and Number:
Japanese Patent JP2019039315
Kind Code:
A
Abstract:
To provide an internal gear type pump that can meet both request for lowering torque and request for increasing pump efficiency.SOLUTION: In an internal gear type pump, a pump rotor including an inner rotor with a tooth number n and an outer rotor with a tooth number n+1 is assembled into a pump case. The internal gear type pump meets a condition of D/L≥5.0, where D represents an outer diameter of the pump rotor and L represents the whole length of the pump rotor.SELECTED DRAWING: Figure 2
Inventors:
TAKADA SHOICHI
YOSHIDA KENTARO
YOSHIDA KENTARO
Application Number:
JP2017160039A
Publication Date:
March 14, 2019
Filing Date:
August 23, 2017
Export Citation:
Assignee:
SUMITOMO DENKO SHOKETSU GOKIN KK
International Classes:
F04C2/10; F04C15/00
Domestic Patent References:
| JP2015045316A | 2015-03-12 | |||
| JP2003227474A | 2003-08-15 | |||
| JP2007262963A | 2007-10-11 | |||
| JP2008128041A | 2008-06-05 | |||
| JP2005120850A | 2005-05-12 |
Attorney, Agent or Firm:
Naoya Kamata
Bunji Kamada
Yaichiro Nakatani
Bunji Kamada
Yaichiro Nakatani