Rotary kinetic fluid motors or pumps – Runner has spirally arranged blade or fluid passage – Extending along runner axis
Reexamination Certificate
2006-04-04
2006-04-04
Nguyen, Ninh H. (Department: 3745)
Rotary kinetic fluid motors or pumps
Runner has spirally arranged blade or fluid passage
Extending along runner axis
C416S22300B
Reexamination Certificate
active
07021890
ABSTRACT:
In order to provide a high-head, large-delivery turbopump adapted for excellent suction performance and foreign matter passability by having characteristics of an inducer, axial flow vanes, and mixed flow vanes imparted together to centrifugal vanes, a progressively diameter-increased suction casing rear part has arranged therein an impeller configured with two to four rotary vanes wound around a hub, to define rotary channels having a vane outlet channel width of 26% in proportion to a vane inlet outer circumference diameter, the rotary vanes being each respectively configured as a collision-less connection of an upstream axial-flow screw part provided with an inducer part extending into a suction fluid path of a suction casing front part at a vane inlet angle of 14°, an intermediate mixed-flow screw part, and a downstream centrifugal screw part.
REFERENCES:
patent: 2483335 (1949-09-01), Davis
patent: 3243102 (1966-03-01), McMahan
patent: 4063849 (1977-12-01), Modianos
patent: 4427336 (1984-01-01), Lake
patent: 1308541 (1973-02-01), None
patent: 342095 (1991-04-01), None
patent: 5321867 (1993-12-01), None
patent: 791395 (1995-04-01), None
patent: 7247984 (1995-09-01), None
patent: 10184589 (1998-07-01), None
patent: 1130194 (1999-02-01), None
patent: 2001271779 (2001-10-01), None
English Language Abstract of JP Appln. No. 5-321867.
English Language Abstract of JP Appln. No. 2001-271779.
Partial English Language Translation of JP Appln. No. 3-42095.
English Language Abstract of JP Appln. No. 7-247984.
English Language Abstract of JP Appln. No. 10-184589.
English Language Abstract of JP Appln. No. 7-91395.
English Language Abstract of JP Appln. No. 11-30194.
Ishigaki Eiichi
Yoshida Tomoki
Greenblum & Bernstein P.L.C.
Ishigaki Company Limited
Nguyen Ninh H.
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