GB2010403A - Gear Pumps - Google Patents

Gear Pumps

Info

Publication number
GB2010403A
GB2010403A GB7845634A GB7845634A GB2010403A GB 2010403 A GB2010403 A GB 2010403A GB 7845634 A GB7845634 A GB 7845634A GB 7845634 A GB7845634 A GB 7845634A GB 2010403 A GB2010403 A GB 2010403A
Authority
GB
United Kingdom
Prior art keywords
drive shaft
gears
gear pumps
recess
affixed
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.)
Granted
Application number
GB7845634A
Other versions
GB2010403B (en
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.)
SPX Corp
Original Assignee
General Signal 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 General Signal Corp filed Critical General Signal Corp
Publication of GB2010403A publication Critical patent/GB2010403A/en
Application granted granted Critical
Publication of GB2010403B publication Critical patent/GB2010403B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

The pump includes a housing (12, 14, 16), gears (18, 20), and a drive shaft (22) affixed to one of the gears. A plain bearing, or so-called bushing, (30) for the drive shaft has an end surface (36) facing the driven gear (18) and an annular recess (38) in this surface. A sealing member (40) is positioned within the recess (38) for minimizing outward leakage of fluid along the drive shaft. <IMAGE>
GB7845634A 1977-12-19 1978-11-22 Gear pumps Expired GB2010403B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86174577A 1977-12-19 1977-12-19

Publications (2)

Publication Number Publication Date
GB2010403A true GB2010403A (en) 1979-06-27
GB2010403B GB2010403B (en) 1982-05-26

Family

ID=25336636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7845634A Expired GB2010403B (en) 1977-12-19 1978-11-22 Gear pumps

Country Status (1)

Country Link
GB (1) GB2010403B (en)

Also Published As

Publication number Publication date
GB2010403B (en) 1982-05-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee