JPH029970A - Inscribed gear pump - Google Patents

Inscribed gear pump

Info

Publication number
JPH029970A
JPH029970A JP25168887A JP25168887A JPH029970A JP H029970 A JPH029970 A JP H029970A JP 25168887 A JP25168887 A JP 25168887A JP 25168887 A JP25168887 A JP 25168887A JP H029970 A JPH029970 A JP H029970A
Authority
JP
Japan
Prior art keywords
casing
internal gear
cover
pump
pump chamber
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
JP25168887A
Other languages
Japanese (ja)
Other versions
JPH0759949B2 (en
Inventor
Sanae Mori
森　早苗
Kosaburo Niwa
丹羽　小三郎
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.)
Daido Metal Co Ltd
Original Assignee
Daido Metal 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 Daido Metal Co Ltd filed Critical Daido Metal Co Ltd
Priority to JP62251688A priority Critical patent/JPH0759949B2/en
Priority to DE3829547A priority patent/DE3829547A1/en
Publication of JPH029970A publication Critical patent/JPH029970A/en
Publication of JPH0759949B2 publication Critical patent/JPH0759949B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F04C2/101—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 with a crescent-shaped filler element, located between the inner and outer intermeshing members
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2240/50—Bearings

Landscapes

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

Abstract

PURPOSE:To reduce the sliding resistance of an inward gear and improve the efficiency of a pump by arranging an oil pocket on the sliding surface of a casing or a cover on which the inward gear is slid between the side wall of a pump chamber and a fixed filler. CONSTITUTION:A pump is provided with a casing 1, a cover 4 fitted on the casing 1, a pump chamber made of a recess 7 formed between both of them 1 and 4, an inward gear 2 slidably provided in the pump chamber, and an outward gear 3 rotatably provided in the pump chamber and driving the inward gear 2 to perform a pump action. In this case, one or more oil pockets 5a-5e are arranged on the sliding surface of the casing 1 or the cover 4 on which the inward gear 2 is slid between the side wall 7a of the recess 7 forming the pump chamber and a fixed filler 8. Oil is guided into the oil pockets 5c-5e from an intake port 11, a pressure oil film floating the inward gear 2 is formed.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、内接歯車ポンプ、特に小型内接歯車ポンプに
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to internal gear pumps, in particular to small internal gear pumps.

（従来の技術） 従来周知の内接歯車ポンプは、ケーシング、このケーシ
ング上に装着したカバー、組み立てたケーシングとカバ
ーの間に形成されたポンプ室、このポンプ室内に摺動自
在に設置された内歯歯車、前記ポンプ室内に回転自在に
設置され、外部から回転駆動されて前記内歯歯車とかみ
合いこれを駆動し、ポンプ作用を行う外歯歯車、前記内
歯歯車の囲動運動を規制する固定フィラー、前記カバー
に形成された吸込口に対向してケーシングの摺動面に設
けられたオイルポケット、および前記ケーシングの吐出
口に対向して設けられたオイルポケットを有し、前記吸
込口から油を吸い込んで吐出口に吐出するようにしてい
る。(Prior Art) A conventionally well-known internal gear pump consists of a casing, a cover mounted on the casing, a pump chamber formed between the assembled casing and the cover, and an interior slidably installed in the pump chamber. A toothed gear, which is rotatably installed in the pump chamber and is rotatably driven from the outside to mesh with and drive the internal gear to perform a pumping action; an external gear that regulates the circumferential movement of the internal gear; a filler, an oil pocket provided on the sliding surface of the casing facing the suction port formed in the cover, and an oil pocket provided facing the discharge port of the casing; It is designed to suck in the water and discharge it through the discharge port.

また、従来周知の別な内接歯車ポンプは、さらにケーシ
ングの吐出口に接続したオイルポケット、および前記ケ
ーシングの前記オイルポケットに対向してカバーに形成
されたオイルポケットを有するものがある。Another conventionally known internal gear pump further includes an oil pocket connected to a discharge port of a casing, and an oil pocket formed in a cover opposite to the oil pocket of the casing.

（発明が解決しようとする問題点） 前記型式の従来の内接歯車ポンプにおいては、動力に対
する摺動抵抗の比率が大きく、内接歯車ポンプの全効率
が低下している。(Problems to be Solved by the Invention) In conventional internal gear pumps of the type described above, the ratio of sliding resistance to power is large, reducing the overall efficiency of the internal gear pump.

（問題点を解決するための手段） 本発明は、従来の内接歯車ポンプの前記問題を解決する
ことである。(Means for Solving the Problems) The present invention is to solve the above-mentioned problems of conventional internal gear pumps.

この目的を達成するため、本発明は、ポンプ室の側壁と
固定フィラーの間にあって、内歯歯車が摺動するケーシ
ングおよび／またはカバーの震動面に、少なくとも１つ
のオイルポケットおよび／または圧力油を供給する導入
通路を右するオイルポケットを設けた内接歯車ポンプを
提供するつ〈実施例） 第１図から第５図を参照すると、本発明の第１実施例に
よる内接歯車ポンプ１０が示され、この内接歯車ポンプ
１ｏは、円柱形状のケーシング１、内歯歯車２、駆動軸
６に固着された外歯歯車３および円柱形状のカバー４を
含む。ケーシング１は、カバー４との合わせ面１ａにノ
ックピン１２を植設すると共に、凹所７、吐出口９、ノ
ック孔１３、ねじ付き盲孔１４および貫通孔１５を形成
されている。円筒形状の凹所７は、側壁７ａと底面７ｂ
を有し、カバー４の合わせ面４ａと共にポンプ室を画成
する。このポンプ室は、以下に述べるように内歯歯車２
と外歯歯車３を噛み合わせた状態で収容する。ケーシン
グ１の凹所７は、その底面７ｂに複数個の円弧状の第１
のオイルポケット５ａ。To achieve this objective, the invention provides at least one oil pocket and/or pressure oil on the vibrating surface of the casing and/or cover, on which the internal gear slides, between the side wall of the pump chamber and the fixed filler. EMBODIMENT OF THE INVENTION Referring to FIGS. 1 to 5, an internal gear pump 10 according to a first embodiment of the present invention is shown. The internal gear pump 1o includes a cylindrical casing 1, an internal gear 2, an external gear 3 fixed to a drive shaft 6, and a cylindrical cover 4. The casing 1 has a dowel pin 12 implanted in the mating surface 1a with the cover 4, and also has a recess 7, a discharge port 9, a dowel hole 13, a threaded blind hole 14, and a through hole 15. The cylindrical recess 7 has a side wall 7a and a bottom surface 7b.
and defines a pump chamber together with the mating surface 4a of the cover 4. This pump chamber is connected to the internal gear 2 as described below.
and external gear 3 are housed in a meshed state. The recess 7 of the casing 1 has a plurality of arcuate first holes on its bottom surface 7b.
oil pocket 5a.

５ｂおよび第１１図に示すようなハート形または長円形
の第２のオイルポケット５ｃ、５ｄ、５ｅをそれぞれ一
定の深さに形成すると共に固定フィラー８を底面７ｂか
ら突出させて形成している。Heart-shaped or oval second oil pockets 5c, 5d, and 5e as shown in FIG. 5b and FIG. 11 are each formed to a certain depth, and a fixed filler 8 is formed to protrude from the bottom surface 7b.

市記凹所７は、その底面からケーシング全体を１通した
軸孔１６を形成している。The city record recess 7 forms a shaft hole 16 that passes through the entire casing from its bottom surface.

第１図、第５図および第６図に示すように、ノコバー４
は、その合わせ面４ａにノックビン２２を植設すると共
に、軸孔２６、円弧状に延びる第１のオイルポケット２
５ａ、ハート形または長円形の第２のオイルポケット２
５ｃ、２５ｄ、２５ｅ、円弧状の吸込口１１、ノック孔
２３、取付は孔２４、組付は孔２７を形成されている。As shown in FIGS. 1, 5 and 6, the saw bar 4
A knock bottle 22 is installed on the mating surface 4a, and a shaft hole 26 and a first oil pocket 2 extending in an arc shape are installed.
5a, heart-shaped or oblong second oil pocket 2
5c, 25d, 25e, an arc-shaped suction port 11, a knock hole 23, a hole 24 for attachment, and a hole 27 for assembly.

取付１ノ孔２４は、これを通してケーシング１のねじ付
き盲孔１４にねじをねじ込むことによりケーシング１と
カバー４を一体に組立てる。組付は孔２７は、これとケ
ーシング１の貫通孔１５にねじを通して他の機械構造物
に取り付けるようにする。円弧状の吸込口１１は、第６
図に示すようにカバー４の合わせ面４ａとは反対側の底
外面４ｂに形成された凹所４Ｃまでカバー４を貫通して
いる。The mounting 1 hole 24 allows the casing 1 and the cover 4 to be assembled together by screwing a screw through the mounting hole 24 into the threaded blind hole 14 of the casing 1. For assembly, screws are passed through the hole 27 and through the through hole 15 of the casing 1 to attach it to another mechanical structure. The arc-shaped suction port 11 is the sixth
As shown in the figure, the cover 4 is penetrated to a recess 4C formed in the bottom outer surface 4b of the cover 4 on the side opposite to the mating surface 4a.

ケーシング１とカバー４の組み立てにおいて、内歯歯車
２と外歯歯車３が形成されたポンプ室に収容され、駆動
＠６の両端は、カバー４の軸孔２６およびケーシング１
の軸孔１６を貫通し、かつ外部の適当な駆動手段により
回転駆動される。内歯歯車２は、固定フィラー８と凹所
７の側壁７ａとの間で摺動するようにされ、この囲動運
動は固定フィラー８により規制される。ケーシング１の
ノックビン１２は、カバー４のノック孔２３に挿入され
、カバー４のノックピン２２は、ケーシング１のノック
孔１３に挿入される。第７図を参照すると、組立て状態
におけるケーシング１の線Ａ−Ａ、内歯歯車２の線Ｂ−
８、カバー４の線ＣＣに沿った断面が示される。In assembling the casing 1 and the cover 4, the internal gear 2 and the external gear 3 are accommodated in the formed pump chamber, and both ends of the drive @6 are connected to the shaft hole 26 of the cover 4 and the casing 1.
It passes through the shaft hole 16 of the shaft and is rotationally driven by an appropriate external driving means. The internal gear 2 is configured to slide between the fixed filler 8 and the side wall 7a of the recess 7, and this circumferential movement is regulated by the fixed filler 8. The knock pin 12 of the casing 1 is inserted into the knock hole 23 of the cover 4, and the knock pin 22 of the cover 4 is inserted into the knock hole 13 of the casing 1. Referring to FIG. 7, the line A-A of the casing 1 and the line B- of the internal gear 2 in the assembled state are shown.
8. A cross section of the cover 4 along line CC is shown.

作動において、外歯歯車３が外部の駆動手段により回転
駆動されると、内歯歯車２が第７図の矢印で示す方向に
回転摺動する。これにより、吸込口１１から導入された
油がポンプ室の側壁７ａと固定フィラー８との間にある
オイルポケット５ｃ。In operation, when the external gear 3 is rotationally driven by an external drive means, the internal gear 2 rotates and slides in the direction indicated by the arrow in FIG. Thereby, the oil introduced from the suction port 11 is located in the oil pocket 5c between the side wall 7a of the pump chamber and the fixed filler 8.

５ｄ、５ｅに進入し、内歯歯車２を浮上させるのに十分
な圧力まで昇圧し圧力油膜を形成する。これにより、内
歯歯車２の摺動抵抗と摩耗は大幅に減少する。また、吸
込口１１から導入された油は、内歯歯車２と外歯歯車３
のかみ合い回転により第１０図に示すように固定フィラ
ー８の内周面と外周面に沿って運ばれ吐出口９から押し
出される。5d and 5e, the pressure is increased to a pressure sufficient to levitate the internal gear 2, and a pressure oil film is formed. As a result, the sliding resistance and wear of the internal gear 2 are significantly reduced. Further, the oil introduced from the suction port 11 is applied to the internal gear 2 and the external gear 3.
Due to the meshing rotation, the fixed filler 8 is carried along the inner circumferential surface and outer circumferential surface of the fixed filler 8 as shown in FIG. 10, and is pushed out from the discharge port 9.

第８図を参照すると、本発明の！Ｔ２実施例による内接
歯車ポンプ１０Ａが示され、このポンプは、ケーシング
１　Ｊ５よびカバー４の各オイルポケット５ａ〜５ｅ、
２５ａ、２５Ｃ〜２５ｅに連通し−Ｃ油を供給する導入
通路１７を設けた点で第１実施例の内接歯車ポンプ１０
と異なる。第２実施例の内接歯車ポンプＩＯＡにおいて
、圧力油の源は、例えば吸入側からの圧力油でもよい。Referring to FIG. 8, the present invention! An internal gear pump 10A according to the T2 embodiment is shown, which includes oil pockets 5a to 5e of the casing 1 J5 and the cover 4,
Internal gear pump 10 of the first embodiment in that an introduction passage 17 is provided which communicates with 25a and 25C to 25e and supplies -C oil.
different from. In the internal gear pump IOA of the second embodiment, the source of pressure oil may be, for example, pressure oil from the suction side.

この内接歯車ポンプ１０Ａでは、内歯歯車２の停止時と
起動時に摺動面に油膜を確保することが可能である。In this internal gear pump 10A, it is possible to ensure an oil film on the sliding surface when the internal gear 2 is stopped and started.

第９図を参照すると、従来構造の内接歯車ポンプと本発
明による内接歯車ポンプの性能の比較がグラフで示され
ている。グラフの下方に、実験に供した各ポンプのポン
プ室の底面の形状が示されている。実験の条件は、吐出
圧力２５に’ｊ／ｃｍ２回転数Ｎ−１、歯車の外径３０
Ｆｍであった。このグラフから明らかなように、本発明
による内接歯車ポンプは、従来構造のものに比較してポ
ンプ効率が２倍、容積効率が若干向上している。Referring to FIG. 9, a comparison of the performance of an internal gear pump of conventional construction and an internal gear pump according to the present invention is shown graphically. Below the graph, the shape of the bottom surface of the pump chamber of each pump used in the experiment is shown. The experimental conditions were a discharge pressure of 25, 'j/cm2 rotation speed N-1, and a gear outer diameter of 30.
It was Fm. As is clear from this graph, the internal gear pump according to the present invention has twice the pump efficiency and slightly improved volumetric efficiency compared to the conventionally structured internal gear pump.

（発明の効果） 本発明は、次のような効果を右する。(Effect of the invention) The present invention provides the following effects.

（１）　　第２のオイルポケットをケーシングとカバー
に設けたので、ポンプ効率が大幅に向上すると共に容積
効率も若干向上する。(1) Since the second oil pocket is provided in the casing and cover, the pump efficiency is greatly improved and the volumetric efficiency is also slightly improved.

（２）　　吸入側からの圧力油を導入するオイルポケッ
トを備えた構造では、適正圧力の油が得られ、内歯歯車
の摺動面に油膜が形成されるので摺動抵抗と摩擦抵抗が
減少する。(2) With a structure equipped with an oil pocket that introduces pressure oil from the suction side, oil at the appropriate pressure is obtained, and an oil film is formed on the sliding surface of the internal gear, reducing sliding resistance and frictional resistance. do.

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

第１図は本発明の第１実施例による内接歯車ポンプの分
解斜視図、ｆｆＴ２図は第１図の内接歯車ポンプの組み
立てた状態を示す斜視図、第３図はケーシングの１＠面
図、第４図はケーシングの合わせ面を示す図、第５図は
カバーの合わせ面を示す図、第６図はカバーの底面図、
第７図は第１図の内接歯車ポンプのオイルポケットの作
用を説明する破断断面図、第８図は本発明の第２実施例
による内接歯車ポンプにおけるオイルポケットの作用を
示す破断断面図、第９図は従来構造の内接歯車ポンプと
本発明の内接歯車ポンプの性能を比較したグラフ、第１
０図は内歯歯車、固定フィラーおよび外歯歯車の関連構
成を示す破断図、および第１１図は第２のオイルポケッ
トの形状を示す図である。 図において、 １・・・ケーシング、２・・・内歯歯車、３・・・外歯
歯車、４・・・カバー、５ａ、５ｂ・・・ケーシングの
第１のオイルポケット、５ｃ、５ｄ、５ｅ・・・ケーシ
ングの第２のオイルポケット、７・・・凹所、７ａ・・
・側壁、７ｂ・・・底面、８・・・固定フィラー、９・
・・吐出口、１０．１０△・・・内接歯車ポンプ、１１
・・・吸込口、２５ａ・・・カバーの第１のオイルポケ
ット、２５ｃ、２５ｄ、２５ｅ・・・カバーの第２のオ
イルポケット。 第　２　図 第３区Fig. 1 is an exploded perspective view of the internal gear pump according to the first embodiment of the present invention, Fig. ffT2 is a perspective view showing the assembled state of the internal gear pump of Fig. 1, and Fig. 3 is the 1@ side of the casing. Figure 4 is a diagram showing the mating surfaces of the casing, Figure 5 is a diagram showing the mating surfaces of the cover, Figure 6 is a bottom view of the cover,
FIG. 7 is a broken sectional view illustrating the effect of the oil pocket in the internal gear pump of FIG. 1, and FIG. 8 is a broken sectional view illustrating the effect of the oil pocket in the internal gear pump according to the second embodiment of the present invention. , FIG. 9 is a graph comparing the performance of the internal gear pump of the conventional structure and the internal gear pump of the present invention.
FIG. 0 is a cutaway view showing the related structure of the internal gear, the fixed filler, and the external gear, and FIG. 11 is a diagram showing the shape of the second oil pocket. In the figure, 1... Casing, 2... Internal gear, 3... External gear, 4... Cover, 5a, 5b... First oil pocket of casing, 5c, 5d, 5e. ...Second oil pocket of casing, 7...Recess, 7a...
・Side wall, 7b...Bottom surface, 8...Fixed filler, 9.
...Discharge port, 10.10△...Internal gear pump, 11
... Suction port, 25a... First oil pocket of cover, 25c, 25d, 25e... Second oil pocket of cover. Figure 2 District 3

Claims (1)

【特許請求の範囲】 　ケーシング、このケーシング上に装着したカバー、組
み立てたケーシングとカバーの間に形成されたポンプ室
、このポンプ室内に摺動自在に設置された内歯歯車、前
記ポンプ室内に回転自在に設置され、外部から回転駆動
されて前記内歯歯車とかみ合い、これを駆動し、ポンプ
作用を行う外歯歯車、前記内歯歯車の摺動作用を規制す
る固定フイラー、前記カバーに形成された吸込口に対向
してケーシングの摺動面に設けられた第１のオイルポケ
ツト、前記ケーシングの吐出口に対向してカバーに設け
られた第１のオイルポケツトを有する内接歯車ポンプに
おいて、 ポンプ室の側壁と固定フイラーとの間にあつて、内歯歯
車が摺動するケーシングおよび／またはカバーの摺動面
に、少なくとも１つのオイルポケツトおよび／または圧
力油を供給する導入通路を有するオイルポケツトを設け
たことを特徴とする内接歯車ポンプ。[Scope of Claims] A casing, a cover mounted on the casing, a pump chamber formed between the assembled casing and the cover, an internal gear slidably installed in the pump chamber, and a rotating gear in the pump chamber. an external gear that is freely installed and rotationally driven from the outside to mesh with and drive the internal gear to perform a pumping action; a fixed filler that regulates the sliding movement of the internal gear; and a fixed filler formed on the cover. An internal gear pump comprising: a first oil pocket provided on a sliding surface of a casing facing a suction port; and a first oil pocket provided on a cover facing a discharge port of the casing. an oil pocket having at least one oil pocket and/or an introduction passage for supplying pressure oil, located between the side wall of the chamber and the fixed filler and on the sliding surface of the casing and/or cover on which the internal gear slides; An internal gear pump characterized by being provided with.
JP62251688A 1987-10-07 1987-10-07 Internal gear pump Expired - Fee Related JPH0759949B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62251688A JPH0759949B2 (en) 1987-10-07 1987-10-07 Internal gear pump
DE3829547A DE3829547A1 (en) 1987-10-07 1988-08-31 Internal-gear pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62251688A JPH0759949B2 (en) 1987-10-07 1987-10-07 Internal gear pump

Publications (2)

Publication Number Publication Date
JPH029970A true JPH029970A (en) 1990-01-12
JPH0759949B2 JPH0759949B2 (en) 1995-06-28

Family

ID=17226531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62251688A Expired - Fee Related JPH0759949B2 (en) 1987-10-07 1987-10-07 Internal gear pump

Country Status (1)

Country Link
JP (1) JPH0759949B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008069770A (en) * 2006-08-15 2008-03-27 Tbk:Kk Gear pump
JP2013238169A (en) * 2012-05-15 2013-11-28 Tokiko Techno Kk Pump device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229001A (en) * 1975-07-09 1977-03-04 Nike Hydraulik Ab Scale for use in measuring and correcting damaged vehicle in vehicle alignment device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229001A (en) * 1975-07-09 1977-03-04 Nike Hydraulik Ab Scale for use in measuring and correcting damaged vehicle in vehicle alignment device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008069770A (en) * 2006-08-15 2008-03-27 Tbk:Kk Gear pump
JP2013238169A (en) * 2012-05-15 2013-11-28 Tokiko Techno Kk Pump device

Also Published As

Publication number Publication date
JPH0759949B2 (en) 1995-06-28

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