Invention Grant
- Patent Title: Quieter centrifugal blower with suppressed BPF tone
- Patent Title (中): 静音离心鼓风机，抑制BPF色调
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Application No.: US14266051Application Date: 2014-04-30
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Publication No.: US09568017B2Publication Date: 2017-02-14
- Inventor: Hiroyuki Hayashi , Justin Black , Prakash Thawani , Melissa Buczek , Jie Zeng
- Applicant: DENSO International America, Inc. , DENSO CORPORATION
- Applicant Address: US MI Southfield JP Kariya, Aichi-pref.
- Assignee: Denso International America, Inc.,DENSO CORPORATION
- Current Assignee: Denso International America, Inc.,DENSO CORPORATION
- Current Assignee Address: US MI Southfield JP Kariya, Aichi-pref.
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: F03B3/04
- IPC: F03B3/04 ; F04D29/42 ; F04D29/66 ; F04D29/44
Abstract:
A centrifugal blower assembly including a ring-shaped planar portion and a sloped guide surface. The ring-shaped planar portion defines a central aperture at which a centrifugal fan is seated. The ring-shaped planar portion is elevated relative to a lower surface of a scroll casing. The sloped guide surface is between the ring-shaped planar portion and the lower surface of the scroll casing. The sloped guide surface slopes towards the lower surface, and extends in a downstream direction towards a partition of the scroll casing at a scroll starting position of the scroll casing.
Public/Granted literature
- US20150316070A1 Quieter centrifugal blower with suppressed BPF tone Public/Granted day:2015-11-05
Information query
