JPS61104178A - Rotary oil pump - Google Patents

Rotary oil pump

Info

Publication number
JPS61104178A
JPS61104178A JP22567284A JP22567284A JPS61104178A JP S61104178 A JPS61104178 A JP S61104178A JP 22567284 A JP22567284 A JP 22567284A JP 22567284 A JP22567284 A JP 22567284A JP S61104178 A JPS61104178 A JP S61104178A
Authority
JP
Japan
Prior art keywords
rotors
metal contact
end faces
oil
oil 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.)
Pending
Application number
JP22567284A
Other languages
Japanese (ja)
Inventor
Yoshio Kumada
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.)
Taiho Kogyo Co Ltd
Original Assignee
Taiho Kogyo 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 Taiho Kogyo Co Ltd filed Critical Taiho Kogyo Co Ltd
Priority to JP22567284A priority Critical patent/JPS61104178A/en
Publication of JPS61104178A publication Critical patent/JPS61104178A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084Toothed wheels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088Lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12Rotary-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
    • F04C2/14Rotary-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
    • F04C2/18Rotary-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/50Bearings

Abstract

PURPOSE: To prevent metal contact wear, a wearing noise and a decrease in efficiency of a pump, by providing the end faces of a rotary member with a plurality of oil guide grooves for leading oil toward the center of the rotary member.
CONSTITUTION: The end faces 14a, 15a of an inner gear rotor 14 and an outer gear rotor 15 are provided with a plurality of oil guide grooves 18, 19 for leading oil toward the centers of the rotors. As a result, oil films are stably formed between the end faces 14a, 15a of the rotors 14, 15 and the support faces 11a, 12a of fixed members 11, 12 to prevent the rotors and the fixed members from coming into metal contact with each other. Metal contact wear, a wearing noise and a decrease in the efficiency of a pump are thus prevented.
COPYRIGHT: (C)1986,JPO&Japio
JP22567284A 1984-10-29 1984-10-29 Rotary oil pump Pending JPS61104178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22567284A JPS61104178A (en) 1984-10-29 1984-10-29 Rotary oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22567284A JPS61104178A (en) 1984-10-29 1984-10-29 Rotary oil pump

Publications (1)

Publication Number Publication Date
JPS61104178A true JPS61104178A (en) 1986-05-22

Family

ID=16832970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22567284A Pending JPS61104178A (en) 1984-10-29 1984-10-29 Rotary oil pump

Country Status (1)

Country Link
JP (1) JPS61104178A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0292083U (en) * 1988-12-29 1990-07-20
KR100435686B1 (en) * 2001-10-25 2004-06-12 현대자동차주식회사 Continuously variable transmission type oil pump
EP3120027A4 (en) * 2014-03-21 2017-12-06 Imo Industries Inc. Gear pump with end plates or bearings having spiral grooves

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0292083U (en) * 1988-12-29 1990-07-20
KR100435686B1 (en) * 2001-10-25 2004-06-12 현대자동차주식회사 Continuously variable transmission type oil pump
EP3120027A4 (en) * 2014-03-21 2017-12-06 Imo Industries Inc. Gear pump with end plates or bearings having spiral grooves
US10323636B2 (en) 2014-03-21 2019-06-18 Circor Pumps North America, Llc Gear pump with end plates or bearings having spiral grooves

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