Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Cross flow runner
Reexamination Certificate
2009-01-15
2011-11-08
Stark, Jarrett (Department: 2823)
Rotary kinetic fluid motors or pumps
With means for re-entry of working fluid to blade set
Cross flow runner
C415S203000, C460S098000
Reexamination Certificate
active
08052374
ABSTRACT:
A cut-off construction for a transverse fan assembly, including for use with agricultural combine harvesters, to permit the transverse fan assembly to be operated to provide increased air flow volume at a lower rotational fan speed, which cut-off construction includes generally planar inner surfaces on first and second body portions that are positioned laterally to one another along the top of the output throat of the air plenum of the transverse fan assembly between the outer periphery of the fan and a baffle construction of the transverse fan, such that the inner surface of the first body portion is disposed at a cut-off inclination angle α, dependent upon certain parameters of the fan, and the inner surfaces of the first and second body portions intersect with one another in such a way that an upper wall for the output throat is formed by the cut-off construction and by the baffle construction of the fan assembly, which upper wall has a concavity formed therein and therealong near the outer periphery of the fan that effects a shift of the steering vortex of the fan in such a way as to permit the fan to operate with increased air flow volume at lower rotational fan speed.
REFERENCES:
patent: 997127 (1911-07-01), Hanrahan et al.
patent: 1050540 (1913-01-01), Hohman
patent: 3415443 (1968-12-01), Glucksman
patent: 3469773 (1969-09-01), Pool et al.
patent: 3533413 (1970-10-01), Schenk
patent: 3664349 (1972-05-01), Quick
patent: 3833006 (1974-09-01), Temple
patent: 4078870 (1978-03-01), Keller et al.
patent: 4906219 (1990-03-01), Matousek et al.
patent: 5094586 (1992-03-01), Takada et al.
patent: 5165855 (1992-11-01), Ricketts et al.
patent: 5197850 (1993-03-01), Shinobu et al.
patent: 5428945 (1995-07-01), von Allwörden et al.
patent: 5449271 (1995-09-01), Bushnell et al.
patent: 5599162 (1997-02-01), Ricketts et al.
patent: 5868551 (1999-02-01), Smiley, III et al.
patent: 2005/0013685 (2005-01-01), Ricketts et al.
patent: 3048571 (1980-12-01), None
patent: 05126088 (1993-05-01), None
Performance Prediction of Cross-Flow Fans Using Mean Streamline Analysis, International Journal of Rotating Machinery 2005:2, 112-116 Jae-Won Kim, et al.
Numerical And Experimental Investigations Of Cross-Flow Fans, Journal of Computational and Applied Mechanics, vol. 5, No. 2, (2004), pp. 251-261 Martin Gabi and Toni Klehmm.
CNH America LLC
Harms Michael G.
Stark Jarrett
Tobergte Nicholas
LandOfFree
Cut-off construction for transverse fan assemblies that have... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cut-off construction for transverse fan assemblies that have..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cut-off construction for transverse fan assemblies that have... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4279126