GB751908A - Centrifugal pumps - Google Patents

Centrifugal pumps

Info

Publication number
GB751908A
GB751908A GB19513/54A GB1951354A GB751908A GB 751908 A GB751908 A GB 751908A GB 19513/54 A GB19513/54 A GB 19513/54A GB 1951354 A GB1951354 A GB 1951354A GB 751908 A GB751908 A GB 751908A
Authority
GB
United Kingdom
Prior art keywords
impeller
pass
valve
vanes
handwheel
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
GB19513/54A
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.)
Allis Chalmers Corp
Original Assignee
Allis Chalmers Corp
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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Publication of GB751908A publication Critical patent/GB751908A/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
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0011—Control, e.g. regulation, of pumps, pumping installations or systems by using valves by-pass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0027—Varying behaviour or the very pump
    • F04D15/0033—By-passing by increasing clearance between impeller and its casing

Abstract

751,908. Centrifugal pumps.ALLISCHALMERS MANUFACTURING CO. July 2, 1954 [Oct. 21, 1953], No. 19513/54. Class 110(1) In a centrifugal pump, the impeller and the wall of the impeller chamber present opposing surfaces between the suction and discharge, which surfaces are spaced apart to form an internal by-pass adapted to absorb a variable portion of the fluid discharged by the impeller. In the centrifugal pump shown in Fig. 1, liquid can be the passed from the discharge side 21 of the impeller 11 to the suction side 20 by way of a by-pass 25. Vanes 26 help to reverse the flow into the by-pass 25. The by-pass 25 is controlled by a cylindrical valve 28 having an annular lip 31 which, in the closed position shown, abuts the surfaces 23 of the impeller vanes. The valve 28 is movable axially by means of pinions 33 engaging racks 34 and operated through gearing 39, 40 by a handwheel 41. In a modification, the impeller is of the shrouded type and the lip 31 is omitted, the end surface of the valve 28 being arranged to abut the surface of the inner end of the shroud when the valve is closed. In a further embodiment, the impeller is of the double-inlet type with a valve 28 for each inlet. The operating gearing of the two valves is interconnected by a chain drive for operation by a single handwheel. Fig. 6 shows an embodiment in which the by-pass 125 is controlled by an axial movement of the impeller 111. For this purpose, the impeller shaft 112 is journalled in bearings 153 carried by a member 150 which can be moved axially on a bedplate 155 by means of:a screw 162 and handheel 161. Sealing rings 130 are provided between the member 150 and the pump casing 110, and the shaft 112 is connected to the driving means 152 by splines 151.
GB19513/54A 1953-10-21 1954-07-02 Centrifugal pumps Expired GB751908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US751908XA 1953-10-21 1953-10-21

Publications (1)

Publication Number Publication Date
GB751908A true GB751908A (en) 1956-07-04

Family

ID=22124139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19513/54A Expired GB751908A (en) 1953-10-21 1954-07-02 Centrifugal pumps

Country Status (1)

Country Link
GB (1) GB751908A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166800A (en) * 1984-10-05 1986-05-14 Richard J Sauter Controlling gas compressors
GB2203491A (en) * 1987-04-16 1988-10-19 David William Pope A pump
GB2212223A (en) * 1987-11-12 1989-07-19 Mtu Muenchen Gmbh Vane assembly for a gas turbine
WO2007004943A1 (en) 2005-07-01 2007-01-11 Itt Manufacturing Enterprises Inc A pump
WO2012069055A1 (en) * 2010-11-28 2012-05-31 Soerensen Harry H Pump for pumping liquid containing solid matter
WO2018114133A1 (en) * 2016-12-21 2018-06-28 KSB SE & Co. KGaA Vortex pump

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166800A (en) * 1984-10-05 1986-05-14 Richard J Sauter Controlling gas compressors
GB2203491A (en) * 1987-04-16 1988-10-19 David William Pope A pump
GB2212223A (en) * 1987-11-12 1989-07-19 Mtu Muenchen Gmbh Vane assembly for a gas turbine
US4909708A (en) * 1987-11-12 1990-03-20 Mtu Motoren- Und Turbinen- Union Munchen Gmbh Vane assembly for a gas turbine
GB2212223B (en) * 1987-11-12 1991-09-04 Mtu Muenchen Gmbh A gas turbine having a vane assembly
WO2007004943A1 (en) 2005-07-01 2007-01-11 Itt Manufacturing Enterprises Inc A pump
WO2012069055A1 (en) * 2010-11-28 2012-05-31 Soerensen Harry H Pump for pumping liquid containing solid matter
WO2018114133A1 (en) * 2016-12-21 2018-06-28 KSB SE & Co. KGaA Vortex pump
CN110073113A (en) * 2016-12-21 2019-07-30 Ksb股份有限公司 Turo pump
US11168695B2 (en) 2016-12-21 2021-11-09 KSB SE & Co. KGaA Vortex pump
AU2017379190B2 (en) * 2016-12-21 2023-04-13 KSB SE & Co. KGaA Vortex pump

Similar Documents

Publication Publication Date Title
US2396319A (en) Pump
US3395645A (en) Shaft seal assembly
US2790391A (en) Two stage variable delivery vane-type pump
US3356034A (en) Fluid pump flow bypass control
GB751908A (en) Centrifugal pumps
US3143079A (en) Reversible discharge flow and variable displacement pump
US2880677A (en) Variable volume vane pump
US3518028A (en) Power reduction of liquid ring pumps
US3169487A (en) High pressure vane pump
US2654322A (en) Pump
US5618165A (en) Variable displacement and constant pressure pump
US1229274A (en) Duplex centrifugal pump.
US2385730A (en) Centrifugal pump
US2390043A (en) Control apparatus
US2493148A (en) Fluid lubricated planetary piston water pump
GB793089A (en) Improvements in rotary engines and compressors
US1594132A (en) Rotary machine
US2255784A (en) Fluid pressure device
US2240782A (en) Hydraulic pump with leak-preventing construction
US2679306A (en) Hydraulic coupling
US2948230A (en) Fluid pump
US2360833A (en) Rotary pump
US1087735A (en) Rotary engine.
GB654854A (en) Liquid pumping unit
US1374747A (en) Changeable centrifugal pump