Title:
VORTEX BLOWER
Document Type and Number:
Japanese Patent JP2018204527
Kind Code:
A
Abstract:
To improve performance of a vortex blower.SOLUTION: A vortex blower 1 has: a motor 11; a casing 12 provided with an arc shape still flow passage 20; an annular impeller 14 in which multiple blades 17 are provided at a predetermined interval in a circumferential direction and which is driven by the motor 11; an inner cover 19 covering the impeller 14; an outer cover 25 covering the inner cover 19; and a fan 15 which is rotatably disposed at the inner side of an annular shape of the impeller 14. Further, the casing 12 includes: a suction passage which guides air into the still flow passage 20 from the outside; and a discharge passage which guides compressed air from the still flow passage 20 to the outside. The vortex blower 1 flows air taken by rotation of the fan 15 into an inter-cover passage 28 between the inner cover 19 and the outer cover 25.SELECTED DRAWING: Figure 5
Inventors:
ITO TOMOO
Application Number:
JP2017110240A
Publication Date:
December 27, 2018
Filing Date:
June 02, 2017
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD
International Classes:
F04D23/00; F04D29/66
Domestic Patent References:
JPS5194003U | 1976-07-28 | |||
JPH0754793A | 1995-02-28 | |||
JPH05157091A | 1993-06-22 | |||
JPS56111295U | 1981-08-28 | |||
JPS5110615U | 1976-01-26 | |||
JPS60190699A | 1985-09-28 | |||
JPS5676188U | 1981-06-22 |
Attorney, Agent or Firm:
Tsutsui International Patent Office