Title:
BLOWER
Document Type and Number:
WIPO Patent Application WO/2022/085332
Kind Code:
A1
Abstract:
This blower comprises a case (2), a fan (3), and an intake nozzle (5). The intake nozzle (5) is formed into a tubular form of which the diameter gradually decreases from a bell mouth (20) of the case (2) toward a shroud tube part (32). A first flow path (11) formed between the intake nozzle (5) and the bell mouth (20), a second flow path (12) formed between the intake nozzle (5) and the shroud tube part (32), and a gap flow path (13) formed between a shroud (34) and the inner wall of the case (2) are in communication with each other. The distance in the direction of an axial center (CL) between an intake-port (6)-side end part (38) of the shroud tube part (32) and a main-plate (33)-side end part (54) of the intake nozzle (5) is denoted as H1. The distance in the direction of the axial center (CL) between the main-plate (33)-side end part (54) of the intake nozzle (5) and an end part (39) closest to the intake port (6) side in a leading edge (35) of a blade (30) is denoted as H2. These distances have the relationship H1 > H2.
Inventors:
ISHII FUMIYA (JP)
IMAHIGASHI SHOUICHI (JP)
ODA SHUZO (JP)
IMAHIGASHI SHOUICHI (JP)
ODA SHUZO (JP)
Application Number:
PCT/JP2021/033321
Publication Date:
April 28, 2022
Filing Date:
September 10, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F04D29/44
Foreign References:
| US3011693A | 1961-12-05 | |||
| CN210440276U | 2020-05-01 | |||
| US20200200187A1 | 2020-06-25 |
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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