DE375042C - Fire extinguishing pump with ventilation pump - Google Patents

Fire extinguishing pump with ventilation pump

Info

Publication number
DE375042C
DE375042C DESCH65522D DESC065522D DE375042C DE 375042 C DE375042 C DE 375042C DE SCH65522 D DESCH65522 D DE SCH65522D DE SC065522 D DESC065522 D DE SC065522D DE 375042 C DE375042 C DE 375042C
Authority
DE
Germany
Prior art keywords
pump
fire extinguishing
ventilation
blades
fire
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
DESCH65522D
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.)
FRITZ SCHNECKO
Original Assignee
FRITZ SCHNECKO
Publication date
Priority to DESCH65522D priority Critical patent/DE375042C/en
Application granted granted Critical
Publication of DE375042C publication Critical patent/DE375042C/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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2272—Rotors specially for centrifugal pumps with special measures for influencing flow or boundary layer

Landscapes

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

Description

Feuerlöschkreiselpumpen. Beim Bau von Feuerlöschkreiselpumpen verwendet man zum Zwecke einer vorteilhafteren Saugwirkung vielfach in der ersten Druckstufe entweder sogenannte geteilte Schaufeln oder aber ein im Gegensatz zu den weiteren Stufen breiteres Laufrad.Centrifugal fire pumps. Used in the construction of centrifugal fire pumps one for the purpose of a more advantageous suction effect often in the first pressure stage either so-called split blades or one in contrast to the others Steps wider impeller.

Die Praxis hat jedoch gezeigt, daß bei beiden bis jetzt nur jeweils getrennt verwendeten Bauarten die angestrebte Wirkung nur mangelhaft erreicht wurde.However, practice has shown that up to now only separately used types of construction the desired effect was only inadequately achieved.

Zweck der vorliegenden Erfindung ist es, diese beiden Svsteme in kombinierter Weise zur Anwendung zu bringen, um bei sicherer Überwindung von großen Saughöhen möglichst große Mengen zu fördern. Die beiliegende Zeichnung zeigt ohne weiteres, wie Anordnung der Schaufeln und Breitenverhältnisse der Laufräder in den verschiedenen Druckstufen vorgesehen sind.The purpose of the present invention is to combine these two systems Way to apply in order to safely overcome large suction heights to promote the largest possible quantities. The accompanying drawing shows without further ado, such as the arrangement of the blades and the proportions of the widths of the impellers in the various Pressure levels are provided.

Claims (1)

PATENT-ANSPRUCH: Feuerlöschkreiselpumpen, dadurch gekennzeichnet, daß in der ersten Druckstufe gleichzeitig sowohl die Schaufeln des Laufrades in an sich bekannter Weise geteilt sind, als auch dieses im Gegensatz zu den weiteren Stufen in ebenfalls bekannter Weise breiter gehalten ist.PATENT CLAIM: Fire-fighting centrifugal pumps, characterized by that in the first pressure stage both the blades of the impeller in are divided in a manner known per se, as well as this in contrast to the other Steps is kept wider in a known manner.
DESCH65522D Fire extinguishing pump with ventilation pump Expired DE375042C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH65522D DE375042C (en) Fire extinguishing pump with ventilation pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH65522D DE375042C (en) Fire extinguishing pump with ventilation pump

Publications (1)

Publication Number Publication Date
DE375042C true DE375042C (en) 1923-05-04

Family

ID=7438603

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH65522D Expired DE375042C (en) Fire extinguishing pump with ventilation pump

Country Status (1)

Country Link
DE (1) DE375042C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753808A (en) * 1950-02-15 1956-07-10 Kluge Dorothea Centrifugal impeller
US3295455A (en) * 1964-08-31 1967-01-03 Patay Miklos Centrifugal pumps
US5080554A (en) * 1989-07-31 1992-01-14 Asmo Co., Ltd. Windscreen washer pump for vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753808A (en) * 1950-02-15 1956-07-10 Kluge Dorothea Centrifugal impeller
US3295455A (en) * 1964-08-31 1967-01-03 Patay Miklos Centrifugal pumps
US5080554A (en) * 1989-07-31 1992-01-14 Asmo Co., Ltd. Windscreen washer pump for vehicle

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