GB476377A - Screw pump with axial relief - Google Patents

Screw pump with axial relief

Info

Publication number
GB476377A
GB476377A GB19855/37A GB1985537A GB476377A GB 476377 A GB476377 A GB 476377A GB 19855/37 A GB19855/37 A GB 19855/37A GB 1985537 A GB1985537 A GB 1985537A GB 476377 A GB476377 A GB 476377A
Authority
GB
United Kingdom
Prior art keywords
chamber
rotors
fluid
pump
passages
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
GB19855/37A
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.)
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
Publication of GB476377A publication Critical patent/GB476377A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F04C2/165—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type having more than two rotary pistons with parallel axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/14—Lubricant

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

476,377. Meshing screw engines. LEISTRITZ, P., and BURGHAUSER, F. July 17, 1937, No. 19855. Convention date, Aug. 13, 1936. Addition to 452,906. [Class 110 (ii)] Means for balancing axial thrusts on screw rotors a, b, c include collars e,f, g on the spindles as in the parent Specification, and a chamber h<1> containing fluid under pressure to balance the thrust on the rotors from the delivery chamber h (in the case of a pump). Fluid enters the pump through a suction chamber s. Passages o, l permit pressure fluid to pass from grooves r in the upper bearings to the space p and lower grooves r to the chamber h<1>. The upward pressure may also balance, in part or wholly, the weights of the rotors. The bearings are lubricated by the fluid being pumped. External pipes may replace the passages o, l. The chamber h<1> may be formed in the casing cover c. The invention is applicable to pumps having two, or more than three rotors. Rotor spindles may be coupled by spur wheels.
GB19855/37A 1936-08-13 1937-07-17 Screw pump with axial relief Expired GB476377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE476377X 1936-08-13

Publications (1)

Publication Number Publication Date
GB476377A true GB476377A (en) 1937-12-07

Family

ID=6541992

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19855/37A Expired GB476377A (en) 1936-08-13 1937-07-17 Screw pump with axial relief

Country Status (1)

Country Link
GB (1) GB476377A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633083A (en) * 1948-09-21 1953-03-31 Barnes Mfg Co Pump
USRE39597E1 (en) 2001-07-02 2007-05-01 Carrier Corporation Variable speed drive chiller system
JP2017048695A (en) * 2015-08-31 2017-03-09 株式会社デンソー Screw pump
WO2017189022A1 (en) 2016-04-29 2017-11-02 Imo Industries, Inc. Modular thrust-compensating rotor assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633083A (en) * 1948-09-21 1953-03-31 Barnes Mfg Co Pump
USRE39597E1 (en) 2001-07-02 2007-05-01 Carrier Corporation Variable speed drive chiller system
JP2017048695A (en) * 2015-08-31 2017-03-09 株式会社デンソー Screw pump
WO2017037980A1 (en) * 2015-08-31 2017-03-09 株式会社デンソー Screw pump
US20180216614A1 (en) * 2015-08-31 2018-08-02 Denso Corporation Screw pump
WO2017189022A1 (en) 2016-04-29 2017-11-02 Imo Industries, Inc. Modular thrust-compensating rotor assembly
EP3449129A4 (en) * 2016-04-29 2020-01-15 Circor Pumps North America, Llc. Modular thrust-compensating rotor assembly
US10641264B2 (en) 2016-04-29 2020-05-05 Circor Pumps North America, Llc Modular thrust-compensating rotor assembly

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