GB437042A - Improvements in and relating to positive displacement rotary pumps, motors or measuring devices - Google Patents

Improvements in and relating to positive displacement rotary pumps, motors or measuring devices

Info

Publication number
GB437042A
GB437042A GB1348434A GB1348434A GB437042A GB 437042 A GB437042 A GB 437042A GB 1348434 A GB1348434 A GB 1348434A GB 1348434 A GB1348434 A GB 1348434A GB 437042 A GB437042 A GB 437042A
Authority
GB
United Kingdom
Prior art keywords
rotor
fluid
threads
abutment
pump
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
GB1348434A
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.)
W H Allen Sons & Co Ltd
Original Assignee
W H Allen Sons & Co 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 W H Allen Sons & Co Ltd filed Critical W H Allen Sons & Co Ltd
Priority to GB1348434A priority Critical patent/GB437042A/en
Publication of GB437042A publication Critical patent/GB437042A/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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catching Or Destruction (AREA)

Abstract

437,042. Meshing - screw pumps or engines. HUTCHINSON, A. C., Tower House, Orchard Hill, Bideford, Devon, and ALLEN SONS & CO., Ltd., W. H., Queen's Engineering Works, Bedford. May 4, 1934, No. 13484. [Class 110 (ii)] The pump or engine comprises a centre pumping rotor 2 with multiple threads, which meshes with two abutment screws 7, 8, in a casing 1 with inlet 9 and delivery 11 shaped as shown. The axial pressure on the rotor and abutment shafts is balanced by collars such as 12 on the shaft 3 which co-operates with a casing wall 13 to form a chamber 14 supplied by fluid from the delivery pipe. This fluid leaks away to a chamber 16 which communicates with the suction pipe. The shaft bearings 4, 5 have a series of pockets 31 to which pressure fluid is led. This fluid is adapted to absorb lateral bearing pressures on the various shafts. The abutment shafts have a similar arrangement provided in each bearing. The rotor and abutment threads on the inlet and outlet sides are tapered off to knife edges. An impeller 39 may be fitted in the inlet pipe to assist the fluid flow towards the pump. Radial guide vanes 40, 41, 45, 46 are provided. The bearing housings are shaped as shown to prevent turbulence in the fluid passing through the pump. The rotor and abutment shafts may be connected externally by helical gears. The threads on the rotor may be extended axially at both ends, beyond the rotor. A Pelton wheel type of turbine may be mounted on a shaft parallel to the shaft 3, and fed with excess fluid delivered by the screw pump. The threads on the rotor and abutments are convex and concave respectively. Packing strips may be provided in the threads. Specifications 231,865, 307,497, and 334,821, [all in Class 110 (ii)], are referred to.
GB1348434A 1934-05-04 1934-05-04 Improvements in and relating to positive displacement rotary pumps, motors or measuring devices Expired GB437042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1348434A GB437042A (en) 1934-05-04 1934-05-04 Improvements in and relating to positive displacement rotary pumps, motors or measuring devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1348434A GB437042A (en) 1934-05-04 1934-05-04 Improvements in and relating to positive displacement rotary pumps, motors or measuring devices

Publications (1)

Publication Number Publication Date
GB437042A true GB437042A (en) 1935-10-23

Family

ID=10023791

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1348434A Expired GB437042A (en) 1934-05-04 1934-05-04 Improvements in and relating to positive displacement rotary pumps, motors or measuring devices

Country Status (1)

Country Link
GB (1) GB437042A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474653A (en) * 1945-04-26 1949-06-28 Jarvis C Marble Helical gear compressor or motor
US2622787A (en) * 1947-07-16 1952-12-23 Jarvis C Marble Helical rotary engine
US2642003A (en) * 1949-12-16 1953-06-16 Read Standard Corp Blower intake port
US2847157A (en) * 1953-10-27 1958-08-12 Svenska Rotor Maskiner Ab Rotary device
US2868442A (en) * 1953-10-27 1959-01-13 Svenska Rotor Maskiner Ab Rotary device
US3031130A (en) * 1958-02-07 1962-04-24 Svenska Rotor Maskiner Ab Rotary device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474653A (en) * 1945-04-26 1949-06-28 Jarvis C Marble Helical gear compressor or motor
US2622787A (en) * 1947-07-16 1952-12-23 Jarvis C Marble Helical rotary engine
US2642003A (en) * 1949-12-16 1953-06-16 Read Standard Corp Blower intake port
US2847157A (en) * 1953-10-27 1958-08-12 Svenska Rotor Maskiner Ab Rotary device
US2868442A (en) * 1953-10-27 1959-01-13 Svenska Rotor Maskiner Ab Rotary device
US3031130A (en) * 1958-02-07 1962-04-24 Svenska Rotor Maskiner Ab Rotary device

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