US1934013A - Centrifugal pump - Google Patents

Centrifugal pump Download PDF

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Publication number
US1934013A
US1934013A US663411A US66341133A US1934013A US 1934013 A US1934013 A US 1934013A US 663411 A US663411 A US 663411A US 66341133 A US66341133 A US 66341133A US 1934013 A US1934013 A US 1934013A
Authority
US
United States
Prior art keywords
impeller
inlet
centrifugal pump
pump
chamber
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 - Lifetime
Application number
US663411A
Other languages
English (en)
Inventor
Sim James
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.)
Weir Group PLC
Original Assignee
G&J Weir Ltd
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 G&J Weir Ltd filed Critical G&J Weir Ltd
Application granted granted Critical
Publication of US1934013A publication Critical patent/US1934013A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/2238—Special flow patterns
    • F04D29/2255—Special flow patterns flow-channels with a special cross-section contour, e.g. ejecting, throttling or diffusing effect
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis

Definitions

  • the object of the present invention is to obviate this drawback.
  • the impeller is formed opposite the inlet eye with a cavity presenting an annular chamber located on the side of the discharge plane of the impeller remote from said inlet eye and bounded by the impeller structure so that the rotating surfaces of the impeller drag round the liquid in the chamber and cause rotation thereof.
  • the rotation in the chamber will be small at the full capacity of the pump, but will increase progressively as the quantity passing through the pump is reduced, the speed of rotation of the liquid in the chamber varying inversely as the quantity or" liquid passing through the pump.
  • the rotation in the chamber may be assisted by vanes rotating with the impeller and disposed within the annular chamber.
  • (1 denotes the rotary impeller arranged in the casing b and driven by the shaft 0.
  • the impeller a is formed with an annular chamber f disposed opposite the impeller eye and located on the side of the discharge plane of the impeller remote from the inlet eye.
  • annular pocket or chamber f is bounded by spaced lateral walls both extending in a direction more nearly parallel to the axis of rotation of the impeller than transverse to said axis beyond the entrance edges of the impelling blades and away from the impeller inlet.
  • a rotary impeller presenting an inlet eye and having impelling blades extending outwardly from said eye, said impeller formed opposite said eye with an annular pocket having spaced lateral walls both extending in a direction more nearly parallel to the axis of said impeller than transverse to said axis beyond the entrance edges of said blades and away from the inlet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US663411A 1932-05-04 1933-03-29 Centrifugal pump Expired - Lifetime US1934013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12831/32A GB392354A (en) 1932-05-04 1932-05-04 Improvements in or relating to centrifugal pumps

Publications (1)

Publication Number Publication Date
US1934013A true US1934013A (en) 1933-11-07

Family

ID=10011926

Family Applications (1)

Application Number Title Priority Date Filing Date
US663411A Expired - Lifetime US1934013A (en) 1932-05-04 1933-03-29 Centrifugal pump

Country Status (4)

Country Link
US (1) US1934013A (enrdf_load_stackoverflow)
FR (1) FR753708A (enrdf_load_stackoverflow)
GB (1) GB392354A (enrdf_load_stackoverflow)
NL (1) NL64737C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614478A (en) * 1984-06-06 1986-09-30 Oy E. Sarlin Ab Pump impeller
US4652207A (en) * 1985-07-22 1987-03-24 Brown Charles W Vaneless centrifugal pump
US5807073A (en) * 1996-01-31 1998-09-15 Grundfos A/S Inline centrifugal pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614478A (en) * 1984-06-06 1986-09-30 Oy E. Sarlin Ab Pump impeller
US4652207A (en) * 1985-07-22 1987-03-24 Brown Charles W Vaneless centrifugal pump
US5807073A (en) * 1996-01-31 1998-09-15 Grundfos A/S Inline centrifugal pump

Also Published As

Publication number Publication date
GB392354A (en) 1933-05-18
FR753708A (fr) 1933-10-23
NL64737C (enrdf_load_stackoverflow) 1934-06-16

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