JPH01114991U - - Google Patents

Info

Publication number
JPH01114991U
JPH01114991U JP1988009862U JP986288U JPH01114991U JP H01114991 U JPH01114991 U JP H01114991U JP 1988009862 U JP1988009862 U JP 1988009862U JP 986288 U JP986288 U JP 986288U JP H01114991 U JPH01114991 U JP H01114991U
Authority
JP
Japan
Prior art keywords
oil
lubricating oil
casing
pump
return passage
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
JP1988009862U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1988009862U priority Critical patent/JPH01114991U/ja
Priority to KR2019880017007U priority patent/KR950005433Y1/en
Publication of JPH01114991U publication Critical patent/JPH01114991U/ja
Pending 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
    • F04C2/10—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
    • 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
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Landscapes

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

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の第１実施例を示す正面図、第
２図は第１図の―線断面図、第３図は本実施
例に供される仕切プレートを示す正面図、第４図
は本考案の第２実施例に供される仕切プレートを
示す正面図、第５図は本考案の第３実施例に供さ
れる仕切プレートを示す正面図、第６図は従来の
オイルポンプを示す正面図、第７図は第６図の
―線断面図である。 ２１……ポンプケーシング、２２……ケーシン
グカバー、２３……吸込口、２４……吐出口、２
８……インナロータ、２８ａ……外歯、２９……
アウタロータ、２９ａ……内歯、３１……密閉空
間、３２……流量制御装置、３５……戻し通路、
３９……仕切プレート、４３……供給孔。 Fig. 1 is a front view showing the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line -- in Fig. 1, Fig. 3 is a front view showing the partition plate used in this embodiment, and Fig. 4. 5 is a front view showing a partition plate used in the second embodiment of the present invention, FIG. 5 is a front view showing a partition plate used in the third embodiment of the present invention, and FIG. 6 is a front view showing a conventional oil pump. The front view shown in FIG. 7 is a sectional view taken along the line -- in FIG. 6. 21...Pump casing, 22...Casing cover, 23...Suction port, 24...Discharge port, 2
8...Inner rotor, 28a...External tooth, 29...
Outer rotor, 29a...inner tooth, 31...closed space, 32...flow control device, 35...return passage,
39... Partition plate, 43... Supply hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一端開口がケーシングカバーにより閉塞された
ポンプケーシングの内部に、吸込口と吐出口とを
両側に配置すると共に、互いの内歯と外歯が噛み
合うアウタロータとインナロータとを回転可能に
収納し、上記アウタロータとインナロータの回転
に伴い上記内外歯間に形成される密閉空間の容積
を変化させてポンプ作用を行う一方、上記吐出口
内の潤滑油の吐出圧力が設定値以上になると該潤
滑油の一部を上記吸込口側に戻し通路を介して還
流させる流量制御装置を備えたオイルポンプにお
いて、上記ポンプケーシングとケーシングカバー
との間に、仕切プレートを介装すると共に、該仕
切プレートの所定個所に、上記戻し通路に流入し
た潤滑油を上記密閉空間に直接供給する供給孔を
設けたことを特徴とするオイルポンプ。 A suction port and a discharge port are arranged on both sides inside a pump casing whose opening at one end is closed by a casing cover, and an outer rotor and an inner rotor whose internal teeth and external teeth mesh with each other are rotatably housed. As the inner rotor rotates, the volume of the sealed space formed between the inner and outer teeth is changed to perform the pumping action, and when the discharge pressure of the lubricating oil in the outlet exceeds a set value, part of the lubricating oil is pumped out. In the oil pump equipped with a flow rate control device that causes the oil to flow back to the suction port side through the return passage, a partition plate is interposed between the pump casing and the casing cover, and the An oil pump characterized in that a supply hole is provided for directly supplying the lubricating oil that has flowed into the return passage into the sealed space.
JP1988009862U 1988-01-28 1988-01-28 Pending JPH01114991U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1988009862U JPH01114991U (en) 1988-01-28 1988-01-28
KR2019880017007U KR950005433Y1 (en) 1988-01-28 1988-10-19 Oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988009862U JPH01114991U (en) 1988-01-28 1988-01-28

Publications (1)

Publication Number Publication Date
JPH01114991U true JPH01114991U (en) 1989-08-02

Family

ID=11731949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988009862U Pending JPH01114991U (en) 1988-01-28 1988-01-28

Country Status (2)

Country Link
JP (1) JPH01114991U (en)
KR (1) KR950005433Y1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101231388B1 (en) * 2006-03-14 2013-02-07 현대자동차주식회사 variable capacitance type oil pump

Also Published As

Publication number Publication date
KR950005433Y1 (en) 1995-07-10
KR890016442U (en) 1989-08-19

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