KR950025262A - Internal oil pump - Google Patents

Internal oil pump Download PDF

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Publication number
KR950025262A
KR950025262A KR1019950003830A KR19950003830A KR950025262A KR 950025262 A KR950025262 A KR 950025262A KR 1019950003830 A KR1019950003830 A KR 1019950003830A KR 19950003830 A KR19950003830 A KR 19950003830A KR 950025262 A KR950025262 A KR 950025262A
Authority
KR
South Korea
Prior art keywords
protruding flange
end surface
oil pump
inner rotor
rotor
Prior art date
Application number
KR1019950003830A
Other languages
Korean (ko)
Other versions
KR0148866B1 (en
Inventor
이꾸오 미스미
Original Assignee
야스모로 도시오
가부시끼가이샤 유니시아 젝스
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 야스모로 도시오, 가부시끼가이샤 유니시아 젝스 filed Critical 야스모로 도시오
Publication of KR950025262A publication Critical patent/KR950025262A/en
Application granted granted Critical
Publication of KR0148866B1 publication Critical patent/KR0148866B1/en

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
    • F04C2/10—Rotary-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
    • F04C2/102—Rotary-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
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/602—Gap; Clearance
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

본 발명의 목적은 접속 틈새로부터의 오일의 누출량을 감소시키고, 펌프 용적 효율을 향상시키는 동시에, 흠부의 눌러붙음 등을 유효하게 방지하는 것이다. 구동축(4)에 고정된 내측 로우터(5)와 그 내측 로우터(5)에 편심해서 내접하는 외측 로우터(6)을 펌프 하우징(1)의 펌프실(3)에 수용하는 동시에, 상기 내측 로우터(5)의 내주부에 있는 돌출 플랜지(5a)를 펌프 하우징(1)의 흠부(11)에 회전 가능하게 지지하고 있다. 상기 흠부(11)의 내주면에 상기 돌출 플랜지(5a)의 단부면(5b)에 대향하는 내측 단부면(14a)를 갖는 댐부(14)를 일체 형성하는 동시에, 그 댐부(14)의 내측 단부면(14a)와 돌출 플랜지의 단부면(5b)사이에 틈새(C3)을 형성하였다.An object of the present invention is to reduce the amount of oil leaking from the connecting gap, to improve the pump volume efficiency, and to effectively prevent the squeezing of the scratches and the like. The inner rotor 5 fixed to the drive shaft 4 and the outer rotor 6 eccentrically inscribed to the inner rotor 5 are accommodated in the pump chamber 3 of the pump housing 1, and the inner rotor 5 The protruding flange 5a in the inner circumferential portion of the () is rotatably supported by the groove 11 of the pump housing 1. The dam part 14 which has the inner end surface 14a which opposes the end surface 5b of the said protruding flange 5a in the inner peripheral surface of the said flap 11 is integrally formed, and the inner end surface of the dam part 14 is integrated. A gap C3 was formed between the 14a and the end face 5b of the protruding flange.

Description

내접형 오일 펌프Internal oil pump

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 내접형 오일 펌프의 일실시예에 있어서 펌프 덮개를 빼낸 상태를 도시한 정면도.1 is a front view showing a state in which the pump cover is removed in one embodiment of the internal oil pump of the present invention.

제2도는 제1도에서의 A-A선 단면도.2 is a cross-sectional view taken along the line A-A in FIG.

제3도는 제2도에서의 부분 확대도.3 is a partially enlarged view in FIG.

Claims (2)

구동축에 고정된 내측 로우터와 그 내측 로우터에 편심해서 내접하는 외측 로우터를 펌프 하우징에 수용하는 동시에, 상기 내측 로우터의 내주부에 있는 돌출 플랜지를 펌프 하우징의 흠부에 회전 가능하게 지지해서 이루어진 내접형 오일 펌프에 있어서, 상기 흠부에 상기 돌출 플랜지의 단부면에 대향하는 벽면을 갖는 댐부를 일체로 형성하는 동시에, 상기 댐부의 벽면과 돌출 플랜지의 단부면 사이에 틈새를 형성한 것을 특징으로 하는 내접형 오일 펌프.An internal oil pump formed by accommodating an inner rotor fixed to a drive shaft and an outer rotor eccentrically inscribed with the inner rotor in the pump housing, and rotatably supporting a protruding flange in the inner circumferential portion of the inner rotor in the pump housing. The inward oil pump according to claim 1, wherein a dam portion having a wall surface opposed to an end surface of the protruding flange is integrally formed in the groove, and a gap is formed between the wall surface of the dam portion and the end surface of the protruding flange. 제1항에 있어서, 상기 틈새의 폭 치수를 약 0에서 0.06mm이하로 설정한 것을 특징으로 하는 내접형 오일 펌프.2. The indirect oil pump according to claim 1, wherein the width dimension of the clearance is set to about 0 to 0.06 mm or less. ※ 참고사항 최초출원 내용에 의하여 공개하는 것임.※ Note The disclosure is based on the initial application.
KR1019950003830A 1994-02-28 1995-02-27 Inscribed type oil pump KR0148866B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP94-29912 1994-02-28
JP6029912A JPH07238889A (en) 1994-02-28 1994-02-28 Inscribed type oil pump

Publications (2)

Publication Number Publication Date
KR950025262A true KR950025262A (en) 1995-09-15
KR0148866B1 KR0148866B1 (en) 1998-11-02

Family

ID=12289211

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950003830A KR0148866B1 (en) 1994-02-28 1995-02-27 Inscribed type oil pump

Country Status (3)

Country Link
JP (1) JPH07238889A (en)
KR (1) KR0148866B1 (en)
CN (1) CN1114713A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101238396B1 (en) * 2012-09-03 2013-02-28 주식회사 두크 Pump with sectional flange

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100405694B1 (en) * 2000-12-26 2003-11-14 현대자동차주식회사 Oil pump for vehicles
CN102777380A (en) * 2012-07-23 2012-11-14 中国兵器工业集团第七0研究所 Driving device for oil pump
CN105156866A (en) * 2015-10-21 2015-12-16 安徽江淮汽车股份有限公司 Oil pump for car and car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101238396B1 (en) * 2012-09-03 2013-02-28 주식회사 두크 Pump with sectional flange

Also Published As

Publication number Publication date
KR0148866B1 (en) 1998-11-02
CN1114713A (en) 1996-01-10
JPH07238889A (en) 1995-09-12

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E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee