GB526260A - Improvements in or relating to gear pumps - Google Patents

Improvements in or relating to gear pumps

Info

Publication number
GB526260A
GB526260A GB7878/39A GB787839A GB526260A GB 526260 A GB526260 A GB 526260A GB 7878/39 A GB7878/39 A GB 7878/39A GB 787839 A GB787839 A GB 787839A GB 526260 A GB526260 A GB 526260A
Authority
GB
United Kingdom
Prior art keywords
pump
bronze
disc
gear
linings
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
GB7878/39A
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 GB526260A publication Critical patent/GB526260A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

526,260. Gear pumps. JOHNSON, J. P. March 10, 1939, No. 7878. Convention date, March 18, 1938: [Class 110 (ii)] A gear pump is provided with a casing and end cover of a light metal such as aluminium, and linings 19, 31, made of a heavier metal such as bronze. The bronze linings may be cast to shape, and the casings cast around them. Gears 20, 23, have axial extensions 21, 22, 24, 25, running in the bearings of bronze. Flats 35 on the bearings prevent their rotation. A flexible disc 48 is placed between a disc 47 of bronze and an end wall 50 and a gasket 53 is also provided. To prevent rotation of discs 47, 48, one or more pins 54, secured to the wall 50, extend through holes in the discs. A collar 45 has running engagement with the disc 47 and is acted upon by fluid under delivery pressure. A ball valve 63 is opened if the pressure within the chamber 57 reaches a predetermined figure, and allows fluid to pass to the pump inlet. An axial opening 67 may be provided in the gear 23 to allow passage of any leakage fluid back to the inlet. If the pump is to be reversed, the cover is removed, rotated 180 degrees, and again fixed to the pump casing. Drain plugs 70 are provided to release any oil which may pass along the shaft 40 from the engine driving the pump.
GB7878/39A 1938-03-18 1939-03-10 Improvements in or relating to gear pumps Expired GB526260A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US526260XA 1938-03-18 1938-03-18

Publications (1)

Publication Number Publication Date
GB526260A true GB526260A (en) 1940-09-13

Family

ID=21978835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7878/39A Expired GB526260A (en) 1938-03-18 1939-03-10 Improvements in or relating to gear pumps

Country Status (1)

Country Link
GB (1) GB526260A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042040B3 (en) * 2005-09-02 2007-05-16 Fresenius Medical Care De Gmbh gear pump
EP1731765A3 (en) * 2005-06-07 2010-05-05 Hamilton Sundstrand Corporation External gear pump for a propeller drivable in both directions
CN104476110A (en) * 2014-09-26 2015-04-01 浙江铂达科技有限公司 Machining method of oil pump shaft sleeve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1731765A3 (en) * 2005-06-07 2010-05-05 Hamilton Sundstrand Corporation External gear pump for a propeller drivable in both directions
US8092202B2 (en) 2005-06-07 2012-01-10 Hamilton Sundstrand Corporation Propeller pump system for handed propeller applications
DE102005042040B3 (en) * 2005-09-02 2007-05-16 Fresenius Medical Care De Gmbh gear pump
CN104476110A (en) * 2014-09-26 2015-04-01 浙江铂达科技有限公司 Machining method of oil pump shaft sleeve
CN104476110B (en) * 2014-09-26 2017-06-06 浙江铂达科技有限公司 A kind of processing method of engine oil pump shaft sleeve

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