Axial flow fan with multiple segment blades

Details Axial flow fan with multiple segment blades Axial flow fan with multiple segment blades

2004-12-01

2008-12-09

Trieu, Theresa (Department: 3748)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural distributing means immediately upstream of runner

C415S211200, C416S183000, C416S19800R, C416S20000R, C416S21200A, C416S21400A, C416S23100A

Reexamination Certificate

active

07462014

ABSTRACT:
An axial flow fan with a plurality of segment blades is described. The axial flow fan has a base, a hub and a plurality of blade units. The hub is mounted on, or pivots on, the base and supports the blade units. Each of the blade units is connected to a periphery of the hub and extends radially outward from the base has a plurality of segment blades. A segment space between the segment blades reforms a boundary layer of fluid passing over the segment blades and reduces the thickness of the boundary layer on the blade surfaces. As a result, the separation between the blade surfaces and fluid is avoided to maintain a laminar flow of the fluid adjacent to the segment blades.

REFERENCES:
patent: 1485649 (1924-03-01), Leggelo
patent: 1926225 (1933-09-01), Birmann
patent: 2205794 (1940-06-01), Jandasek
patent: 2313413 (1943-03-01), Weske
patent: 2487945 (1949-11-01), Shannon
patent: 2859933 (1958-11-01), Whitaker
patent: 3075743 (1963-01-01), Sheets
patent: 3112866 (1963-12-01), Fortescue
patent: 3162421 (1964-12-01), Schwarz
patent: 3173604 (1965-03-01), Sheets et al.
patent: 3244400 (1966-04-01), Saunders
patent: 3867062 (1975-02-01), Troller
patent: 4167369 (1979-09-01), Ishihara
patent: 4502837 (1985-03-01), Blair et al.
patent: 4558987 (1985-12-01), Dittie
patent: 4687416 (1987-08-01), Spranger
patent: 5575620 (1996-11-01), Haller et al.
patent: 6206635 (2001-03-01), Golm et al.
patent: 1712435 (1955-12-01), None
patent: 36-2433 (1961-03-01), None
patent: 07-145798 (1995-06-01), None
patent: 10-054301 (1998-02-01), None
patent: 10-66305 (1998-03-01), None
patent: 2000-009097 (2000-01-01), None
patent: 3078820 (2001-04-01), None
patent: 388203 (1989-04-01), None
patent: 488497 (2002-05-01), None

Affiliated with

Also associated with

Rating

Axial flow fan with multiple segment blades does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Axial flow fan with multiple segment blades, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Axial flow fan with multiple segment blades will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4038194