Title:
MOTOR PUMP
Document Type and Number:
Japanese Patent JP2017040181
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a motor pump where abrasion powder arising in a pump chamber during the turn of a rotor and a vane is hardly discharged to the outside.SOLUTION: In a cover member 32, a vent hole 32a communicating the inside of a pump chamber P with a gap to a bottom face 15a and a cover exhaust hole 32b communicated with the gap to the bottom face 15a and penetrating through the cover member 32 are opened. In a casing 31, a casing exhaust pathway 31a communicated with the cover exhaust hole 32b and penetrating through the casing 31 is formed. In a pump arrangement part 13, a housing exhaust pathway 13d communicating the casing exhaust pathway 31a with the outside of a housing 11 is formed. On the bottom face 15a, a rib 15R is arranged between the vent hole 32a and the cover exhaust hole 32b. The rib 15R partitions the gap between the cover member 32 and the bottom face 15a into ones on the side of the vent hole 32a and the side of the cover exhaust hole 32b.SELECTED DRAWING: Figure 3
Inventors:
YAMASHITA MASAHIRO
Application Number:
JP2015161409A
Publication Date:
February 23, 2017
Filing Date:
August 18, 2015
Export Citation:
Assignee:
TAIHO KOGYO CO LTD
International Classes:
F04C18/344; F04C25/02; F04C29/06
Domestic Patent References:
| JP2013241907A | 2013-12-05 | |||
| JP2012087700A | 2012-05-10 | |||
| JP2013148066A | 2013-08-01 |
Attorney, Agent or Firm:
Juichiro Yano