GB497287A - Improvements in centrifugal pumps - Google Patents

Improvements in centrifugal pumps

Info

Publication number
GB497287A
GB497287A GB16782/37A GB1678237A GB497287A GB 497287 A GB497287 A GB 497287A GB 16782/37 A GB16782/37 A GB 16782/37A GB 1678237 A GB1678237 A GB 1678237A GB 497287 A GB497287 A GB 497287A
Authority
GB
United Kingdom
Prior art keywords
impeller
ring
flushing
lining
engaging
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
GB16782/37A
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.)
Allen Sherman Hoff Co
Original Assignee
Allen Sherman Hoff Co
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 Allen Sherman Hoff Co filed Critical Allen Sherman Hoff Co
Publication of GB497287A publication Critical patent/GB497287A/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
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F04D29/2227—Construction and assembly for special materials
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • F05D2300/431—Rubber

Landscapes

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

Abstract

497,287. Centrifugal pumps; stuffing- box substitutes. ALLEN SHERMAN HOFF CO. June 16, 1937, No. 16782. Convention date, June 26, 1936. [Classes 110 (i) and 122 (v)] In centrifugal pumps for abrasive mixtures with the pump clearances flushed by clear water, sealing between the impeller and housing is effected by a resilient ring projecting radially from one member and engaging on the other member a cylindrical surface coaxial with the impeller axis, the ring being deflected by the excess pressure of the flushing-fluid. The impeller B comprises a metal skeleton frame moulded into a rubber sheath 11, the frame having shrouds 10, 10<11> connected by bladesupporting parts 10<1>. The perforations in the frame may consist of arcuate slots arranged radially or holes arranged in rows. The inlet 3 has a rubber lining 4 while the impeller chamber has linings 7, 9, C. Flushing-water is supplied by pipes 25, 26 to the inlet and shaft sides of the impeller. In the latter case, the lining 9 has a ring or lip 27 engaging the impeller and shaped to pass flushing-water and prevent back flow of abrasive material. In the former case, the lining C may carry a similar rib engaging a metal ring bolted to the impeller, or a metal sealing-ring D is pressed against a boss on the impeller. The ring has slight axial but no rotary movement. A test pipe 23<11> may draw off samples of flushing- liquid to check for abrasive material.
GB16782/37A 1936-06-26 1937-06-16 Improvements in centrifugal pumps Expired GB497287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497287XA 1936-06-26 1936-06-26

Publications (1)

Publication Number Publication Date
GB497287A true GB497287A (en) 1938-12-16

Family

ID=21961375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16782/37A Expired GB497287A (en) 1936-06-26 1937-06-16 Improvements in centrifugal pumps

Country Status (1)

Country Link
GB (1) GB497287A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671408A (en) * 1947-03-10 1954-03-09 Itt Pump
GB2133471A (en) * 1982-12-24 1984-07-25 Kloeckner Humboldt Deutz Ag Centrifugal pumps
EP0207457A1 (en) * 1985-06-29 1987-01-07 KLIFA Fahrzeugteile GmbH + Co. Water pump impeller
CN101813101A (en) * 2010-03-19 2010-08-25 江苏大学 Anti-abrasion device of sealing opening ring of solid-liquid two-phase flow centrifugal pump
CN107676270A (en) * 2017-11-08 2018-02-09 铜陵市宏达家电有限责任公司 A kind of apron plate backwashes Pulp pump
CN110332126A (en) * 2019-08-14 2019-10-15 成都西南水泵厂 A kind of double entry pump with flushing isolation ring

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671408A (en) * 1947-03-10 1954-03-09 Itt Pump
GB2133471A (en) * 1982-12-24 1984-07-25 Kloeckner Humboldt Deutz Ag Centrifugal pumps
EP0207457A1 (en) * 1985-06-29 1987-01-07 KLIFA Fahrzeugteile GmbH + Co. Water pump impeller
WO1987000249A1 (en) * 1985-06-29 1987-01-15 Klifa Fahrzeugteile Gmbh + Co Water pump rotor
US4762465A (en) * 1985-06-29 1988-08-09 Klifa-Fahrzeugteile Gmbh + Co. Water pump impeller
CN101813101A (en) * 2010-03-19 2010-08-25 江苏大学 Anti-abrasion device of sealing opening ring of solid-liquid two-phase flow centrifugal pump
CN107676270A (en) * 2017-11-08 2018-02-09 铜陵市宏达家电有限责任公司 A kind of apron plate backwashes Pulp pump
CN110332126A (en) * 2019-08-14 2019-10-15 成都西南水泵厂 A kind of double entry pump with flushing isolation ring

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