GB983898A - Improvements in or relating to rotary displacement pumps - Google Patents

Improvements in or relating to rotary displacement pumps

Info

Publication number
GB983898A
GB983898A GB2108660A GB2108660A GB983898A GB 983898 A GB983898 A GB 983898A GB 2108660 A GB2108660 A GB 2108660A GB 2108660 A GB2108660 A GB 2108660A GB 983898 A GB983898 A GB 983898A
Authority
GB
United Kingdom
Prior art keywords
flanks
teeth
gear
inlet
june
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
GB2108660A
Inventor
Robert Spurgeon Wood
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.)
Plessey Co Ltd
Original Assignee
Plessey 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB2108660A priority Critical patent/GB983898A/en
Priority to DE19611403929 priority patent/DE1403929C/en
Priority to BE604926A priority patent/BE604926A/en
Priority to CH692961A priority patent/CH393094A/en
Publication of GB983898A publication Critical patent/GB983898A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/14—Rotary-piston machines or engines 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
    • F01C1/16—Rotary-piston machines or engines 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
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • 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
    • 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
    • F04C2/18—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 similar tooth forms

Abstract

983,898. Gear pumps. PLESSEY CO. Ltd. June 8, 1961 [June 15, 1960], No. 21086/60. Heading F1F. A gear pump is provided with an inlet port in an end wall so that the operating liquid flows axially into the pump. The radial distance of the outer edges of the inlet port from the axis of each rotor decreases in the direction of rotation so that the outer portions of the tooth gaps are separated from the inlet before the inner portions. The area of tooth exposed to the inlet is reduced by cutting away (as at 6) the trailing flanks of the teeth of the driving gear and the leading flanks 4 of the teeth of the driven gear, that is, those flanks not in sealing engagement. Backlash is prevented by leaving part of the flanks 12 uncut. Inlets may be formed in each end wall, both ends of the teeth being cut away.
GB2108660A 1960-06-15 1960-06-15 Improvements in or relating to rotary displacement pumps Expired GB983898A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB2108660A GB983898A (en) 1960-06-15 1960-06-15 Improvements in or relating to rotary displacement pumps
DE19611403929 DE1403929C (en) 1960-06-15 1961-06-10 Gear pump
BE604926A BE604926A (en) 1960-06-15 1961-06-13 Rotary pump
CH692961A CH393094A (en) 1960-06-15 1961-06-13 pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2108660A GB983898A (en) 1960-06-15 1960-06-15 Improvements in or relating to rotary displacement pumps

Publications (1)

Publication Number Publication Date
GB983898A true GB983898A (en) 1965-02-17

Family

ID=10156970

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2108660A Expired GB983898A (en) 1960-06-15 1960-06-15 Improvements in or relating to rotary displacement pumps

Country Status (3)

Country Link
BE (1) BE604926A (en)
CH (1) CH393094A (en)
GB (1) GB983898A (en)

Also Published As

Publication number Publication date
DE1403929A1 (en) 1969-01-30
CH393094A (en) 1965-05-31
BE604926A (en) 1961-10-02

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