DE755149C - Equal pressure axial fan or equal pressure axial pump - Google Patents

Equal pressure axial fan or equal pressure axial pump

Info

Publication number
DE755149C
DE755149C DESCH109049D DESC109049D DE755149C DE 755149 C DE755149 C DE 755149C DE SCH109049 D DESCH109049 D DE SCH109049D DE SC109049 D DESC109049 D DE SC109049D DE 755149 C DE755149 C DE 755149C
Authority
DE
Germany
Prior art keywords
pressure axial
equal pressure
blades
constant pressure
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DESCH109049D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DESCH109049D priority Critical patent/DE755149C/en
Application granted granted Critical
Publication of DE755149C publication Critical patent/DE755149C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Die Erfindung ist beschränkt auf Gleichdruck-Axialgebläse oder Gleichdruck-Axialpumpen. Hierunter sind solche Gebläse oder Pumpen zu verstehen, welche im Bereich des besten Wirkungsgrades keinerlei Drucksteigerung im Laufrad aufweisen, vielmehr ausschließlich Geschwindigkeit erzeugen, oder bei denen der Reaktionsgrad nicht mehr als 251/o beträgt. Die im Laufrad erzeugte Geschwindigkeit wird dann hinterher im Diffusor in Druck umgesetzt und die Relativgeschwindigkeiten entlang der Schaufel in Strömungsrichtung verbleiben bei solchen Pumpen oder Gebläsen völlig oder nahezu konstant.The invention is limited to constant pressure axial fans or constant pressure axial pumps. This includes fans or pumps that are in the best range Efficiency do not show any pressure increase in the impeller, rather exclusively Generate speed, or at which the degree of reaction does not exceed 251 / o amounts to. The speed generated in the impeller is then afterwards in the diffuser converted into pressure and the relative speeds along the blade in the direction of flow remain completely or almost constant with such pumps or fans.

Die Erfindung besteht darin, daß die Schaufeln dieser Strömungsmaschinen in an sich bekannter Weise in mehrere axial hintereinanderliegende und in der Umfangsrichtung gegeneinander versetzte Teilschaufeln unterteilt sind.The invention consists in that the blades of these flow machines in a manner known per se in several axially one behind the other and in the circumferential direction staggered partial blades are divided.

In der Zeichnung ist eine Ausführungsform der Erfindung dargestellt, und zwar zeigt Abb. i einen Axialschnitt durch ein Gleichdruck-Axialrad, Abb. a einen Zylinderschnitt durch zwei Laufradschaufeln der bekannten einteiligen Ausführung, Abb. 3 einen Zylinderschnitt durch zwei Laufradschaufeln, die in mehrere axial hintereinanderliegende und in der Umfangsrichtung gegeneinander versetzte Teilschaufeln unterteilt sind.In the drawing, an embodiment of the invention is shown, namely Fig. i shows an axial section through a constant pressure axial impeller, Fig. a a cylinder section through two impeller blades of the known one-piece design, Fig. 3 shows a cylinder section through two impeller blades, which are divided into several axially one behind the other and partial blades offset from one another in the circumferential direction are divided.

Auf der Welle d ist das Laufrad e mit den Schaufeln a, b angeordnet. Diese Schaufeln a, b sind, wie aus Abb. 3 ersichtlich ist, jeweils in Teilschaufeln a1, a2, a3 usw. bzw. b1, b2, b3 usw. unterteilt, so daß mehrere axial hintereinanderliegende Teilschaufelkränze entstehen. In der Umfangsrichtung sind diese Teilschaufeln gegeneinander versetzt.The impeller e with the blades a, b is arranged on the shaft d. As can be seen from FIG. 3, these blades a, b are each subdivided into partial blades a1, a2, a3 etc. or b1, b2, b3 etc., so that several partial blade rings are formed axially one behind the other. These partial blades are offset from one another in the circumferential direction.

Durch die Anwendung der bei Überdruckrädern bereits bekannten Maßnahme, die Schaufeln in mehrere axial hintereinanderliegende und in der Umfangsrichtung gegeneinander versetzte Teilschaufeln zu unterteilen, bei Laufrädern von Gleichdruck Axialgebläsen oder Gleichdruck Axialpumpen kann deren Wirkungsgrad erheblich verbessert werden.By applying the measure already known for overpressure wheels, the blades in several axially one behind the other and in the circumferential direction To subdivide mutually offset partial blades, with impellers of constant pressure Axial fans or constant pressure axial pumps can significantly improve their efficiency will.

Claims (1)

PATENTANSPRUCH: Gleichdruck-Axialgebläse oder Gleichdruck-Axialpumpe, dadurch gekennzeichnet, daß die Schaufeln in an sich bekannter Weise in mehrere axial hintereinanderliegende und in der Umfangsrichtung gegeneinander versetzte Teilschaufeln (a1, a2, a" b1, b2, b3 usw.) unterteilt sind. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: Deutsche Patentschriften Nr. 443 163 und 573799. Claim: constant pressure axial fan or constant pressure axial pump, characterized in that the blades are subdivided in a manner known per se into several partial blades (a1, a2, a "b1, b2, b3 etc.) which are axially one behind the other and offset from one another in the circumferential direction. To differentiate the subject matter of the invention from the state of the art, the following publications were taken into account in the granting procedure: German patent specifications No. 443 163 and 573799.
DESCH109049D 1936-01-28 1936-01-28 Equal pressure axial fan or equal pressure axial pump Expired DE755149C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH109049D DE755149C (en) 1936-01-28 1936-01-28 Equal pressure axial fan or equal pressure axial pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH109049D DE755149C (en) 1936-01-28 1936-01-28 Equal pressure axial fan or equal pressure axial pump

Publications (1)

Publication Number Publication Date
DE755149C true DE755149C (en) 1951-10-31

Family

ID=7448790

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH109049D Expired DE755149C (en) 1936-01-28 1936-01-28 Equal pressure axial fan or equal pressure axial pump

Country Status (1)

Country Link
DE (1) DE755149C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE443163C (en) * 1927-04-22 Karl Frommn Dipl Ing Blades for turbo machines u. like
DE573799C (en) * 1930-12-05 1933-04-05 Johanna Langhans Geb Ulrich Blading for gas and steam turbines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE443163C (en) * 1927-04-22 Karl Frommn Dipl Ing Blades for turbo machines u. like
DE573799C (en) * 1930-12-05 1933-04-05 Johanna Langhans Geb Ulrich Blading for gas and steam turbines

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