Title:
エジェクタ
Document Type and Number:
Japanese Patent JP7342558
Kind Code:
B2
Abstract:
To provide a highly efficient ejector.SOLUTION: An ejector 1 comprises: a cylindrical nozzle 10F having a nozzle hole 11; and a main body part 20 which is arranged so as to form a suction passage part 21 of a suction flow at a periphery of the nozzle 10F, and a merging part 22 of a drive flow and the suction flow on an extension line of a tip opening 11a of the nozzle 10F. The ejector sucks the suction flow into the merging part 22 by injecting the drive flow from the tip opening 11a of the nozzle 10F, and mixes the drive flow and the suction flow at the merging part 22. The nozzle 10F comprises a plurality of spiral flow passage walls 40 for imparting a force in a rotation direction so as to straddle a boundary between the drive flow and the suction flow at a plane vertical to a center axis L at an internal peripheral face, and a plurality of spiral flow passage walls 46 arranged at an external peripheral face, and imparting a force in a rotation direction so as to straddle a boundary between the drive flow and the suction flow at a plane vertical to the center axis L. The flow passage walls 40 and the flow passage walls 46 are inverted with respect to each other in spiral directions.SELECTED DRAWING: Figure 9
Inventors:
Yoshida space-time
Ken Matsubara
Ken Matsubara
Application Number:
JP2019170159A
Publication Date:
September 12, 2023
Filing Date:
September 19, 2019
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
F04F5/46; F04F5/04
Domestic Patent References:
| JP60092800U |
Foreign References:
| US20170102010 | ||||
| US20080074944 | ||||
| DE102008016056A1 | ||||
| US20090324429 | ||||
| US20130323089 |
Attorney, Agent or Firm:
Sakai International Patent Office