JPH032720Y2 - - Google Patents

Info

Publication number
JPH032720Y2
JPH032720Y2 JP5869682U JP5869682U JPH032720Y2 JP H032720 Y2 JPH032720 Y2 JP H032720Y2 JP 5869682 U JP5869682 U JP 5869682U JP 5869682 U JP5869682 U JP 5869682U JP H032720 Y2 JPH032720 Y2 JP H032720Y2
Authority
JP
Japan
Prior art keywords
pump
less
impeller
fluid passage
fin
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.)
Expired
Application number
JP5869682U
Other languages
Japanese (ja)
Other versions
JPS58161191U (en
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 JP5869682U priority Critical patent/JPS58161191U/en
Priority to DE19833313950 priority patent/DE3313950A1/en
Publication of JPS58161191U publication Critical patent/JPS58161191U/en
Application granted granted Critical
Publication of JPH032720Y2 publication Critical patent/JPH032720Y2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04Feeding by means of driven pumps
    • F02M37/08Feeding by means of driven pumps electrically driven
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04Feeding by means of driven pumps
    • F02M37/048Arrangements for driving regenerative pumps, i.e. side-channel pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0653Units comprising pumps and their driving means the pump being electrically driven the motor being flooded
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00Pumps with circumferential or transverse flow
    • F04D5/002Regenerative pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

【考案の詳細な説明】 この考案は、モータで駆動する電動ポンプに関
し、さらに詳しくはカスケードポンプ(ウエスコ
ポンプともいう)からなるポンプ部を備えた液体
搬送用の電動ポンプに関する。
[Detailed Description of the Invention] The present invention relates to an electric pump driven by a motor, and more particularly to an electric pump for transporting liquid that includes a pump section consisting of a cascade pump (also referred to as a Wesco pump).

従来、カスケードポンプは高揚程少流量用の揚
水ポンプとして知られており、一般にはインペラ
径が100mmで揚程が30〜50m、流量が100/min
のものが用いられている。このようなカスケード
ポンプは自動車用の電動燃料ポンプとして用いら
れる場合は小型となるため、その特性上専ら低圧
用で小型かつ安価な電動燃料ポンプとして使用さ
れている。しかしながら、例えば燃料噴射装置用
の電動燃料ポンプでは高圧(締切圧4Kg/cm2
上)を必要とするため、カスケードポンプは使用
不可能とされ、容積型のポンプ(ベーンポンプ、
ローラポンプ)のみが使用されているのが実情で
ある。ところがこのような容積型のポンプは高価
かつ構造が複雑であるという欠点があり、このた
め安価で小型なカスケードポンプを用いた高圧型
の電動燃料ポンプの開発が要望されていた。この
ための努力は従来続けられてはいたが有効な構成
は見い出されず、その実現はほとんど不可能とさ
れていた。
Conventionally, cascade pumps are known as high-head, low-flow pumps, and generally have an impeller diameter of 100 mm, a lifting head of 30 to 50 m, and a flow rate of 100/min.
are used. When such a cascade pump is used as an electric fuel pump for an automobile, it is small in size, and therefore, due to its characteristics, it is used exclusively as a small, inexpensive electric fuel pump for low pressure applications. However, for example, electric fuel pumps for fuel injection systems require high pressure (cutoff pressure of 4 kg/cm 2 or more), so cascade pumps cannot be used, and positive displacement pumps (vane pumps,
In reality, only roller pumps are used. However, such positive displacement pumps have the drawbacks of being expensive and having a complicated structure.Therefore, there has been a demand for the development of a high-pressure electric fuel pump using an inexpensive and compact cascade pump. Efforts have been made to achieve this goal, but no effective configuration has been found, and its realization has been considered almost impossible.

以上に鑑み、本考案の目的は、カスケードポン
プを高圧用のポンプとして使用した安価かつ小型
の電動ポンプの提供にある。
In view of the above, an object of the present invention is to provide an inexpensive and small-sized electric pump using a cascade pump as a high-pressure pump.

次に本考案を図示した実施例に基づいて説明す
る。
Next, the present invention will be explained based on illustrated embodiments.

第1図に示した電動ポンプにおいて、1は円筒
状のケース、2はケース1の上端にかしめつけら
れたカバーで、このカバー2は燃料吐出口3が設
けられ、かつ内面には樹脂製のプレート4が固定
されている。5はケース1の下端部に設けられた
ポンプ部で、カスケードポンプを構成しており、
そのアウト側プレート6はケース1の下端にかし
めつけられている。7はアーマチユアで、その軸
7aの上端部は、カバー2に軸受ホルダ8を介し
て支持された軸受9によつて支承され、下端部は
アウト側プレート6に軸受ホルダ10を介して支
持された軸受11によつて支承されている。12
は図示しない外部配線端子をナツト13,13を
介して固定する端子棒で、カバー2とプレート4
とを貫通して設けられ、プレート4に係止される
カラー12aを備えており、上記ナツト13,1
3により樹脂製の座板14を介して固定される。
ここで、端子棒12とカバー2との間には樹脂製
のブツシユ15とゴム製の密閉リング16とが装
着されている。またプレート4にはコミユテータ
17を介してアーマチユア7に通電するブラシ1
8が設けられている。
In the electric pump shown in Fig. 1, 1 is a cylindrical case, 2 is a cover crimped onto the upper end of the case 1, and this cover 2 is provided with a fuel discharge port 3, and the inner surface is made of resin. Plate 4 is fixed. 5 is a pump section provided at the lower end of case 1, which constitutes a cascade pump.
The outside plate 6 is caulked to the lower end of the case 1. 7 is an armature, the upper end of which is supported by a bearing 9 supported by the cover 2 via a bearing holder 8, and the lower end is supported by the outer plate 6 via a bearing holder 10. It is supported by a bearing 11. 12
is a terminal rod that fixes an external wiring terminal (not shown) via nuts 13, 13, and is connected to the cover 2 and plate 4.
It is provided with a collar 12a that is provided to penetrate through the bolts 12a and 12a that are locked to the plate 4, and that the nuts 13, 1
3 through the seat plate 14 made of resin.
Here, a resin bush 15 and a rubber sealing ring 16 are installed between the terminal bar 12 and the cover 2. The plate 4 also has a brush 1 that energizes the armature 7 via a commutator 17.
8 is provided.

次にポンプ部5の構成をさらに詳しく説明す
る。
Next, the configuration of the pump section 5 will be explained in more detail.

19は流入口20を備えたイン側プレートで、
アウト側プレート6に対し複数本のスクリユ21
(図は1本のみを示す。)により、スペーサ22を
介在させた状態で固定されており、アウト側プレ
ート6には流出口23が設けられている。これら
イン側プレート19とスペーサ22とアウト側プ
レート6とはポンプケーシングを構成して内部に
ポンプ室を形成し、イン側プレート19の上端面
およびアウト側プレート6の下端面はポンプ室の
側壁Wa1,Wa2を各々なし、スペーサ22の内周
面はポンプ室の周壁Wbをなしている。24はポ
ンプ室内において、イン側プレート19に固定さ
れた軸25に軸受26を介して支持されたインペ
ラで、その外周部に設けられたフイン27〜27
の周囲には、イン側プレート19とアウト側プレ
ート6とを以下に述べる仕切部を除き、溝加工す
ることによつて形成された流体通路28が配設さ
れている。29はアーマチユア7の軸7aの下端
に固設されたジヨイントで、インペラ24に形成
された溝24a,24aに嵌入するつめ部29
a,29aを備えている。
19 is an inside plate equipped with an inlet 20;
Multiple screws 21 for the outside plate 6
(Only one is shown in the figure.) The outer plate 6 is fixed with a spacer 22 interposed therebetween, and the outer plate 6 is provided with an outlet 23. The inside plate 19, the spacer 22, and the outside plate 6 constitute a pump casing and form a pump chamber inside. 1 and Wa 2 , respectively, and the inner peripheral surface of the spacer 22 forms the peripheral wall Wb of the pump chamber. Reference numeral 24 denotes an impeller that is supported in the pump chamber by a shaft 25 fixed to the inner plate 19 via a bearing 26, and has fins 27 to 27 provided on its outer periphery.
A fluid passage 28 is provided around the inner plate 19 and the outer plate 6 by forming grooves in the inner plate 19 and the outer plate 6 except for the partition portion described below. 29 is a joint fixed to the lower end of the shaft 7a of the armature 7, and a pawl portion 29 that fits into the grooves 24a, 24a formed in the impeller 24.
a, 29a.

次にポンプ室内の各部材の寸法構成を第3図〜
第5図に従つて説明する。
Next, the dimensional structure of each member in the pump chamber is shown in Figure 3~
This will be explained according to FIG.

第3図および第4図において、インペラ24の
外径Dは25mm以上55mm以下に設定されており、各
フイン27の溝27aの幅aは1.2mm以上2.5mm以
下に、そして各フイン27aの厚さbは0.7mm以
下に設定されている。また、スペーサ22にはイ
ン側プレート19の流入口20に対応するほぼ半
円形の切欠溝22aと、アウト側プレート6の流
出口23に対応する同様な切欠溝22bが設けら
れている。これらの切欠溝22aと切欠溝22b
との円周方向近い側の角度範囲L1における液体
通路28aでの周壁Wbとフイン27〜27の先
端との間の隙間cは0.1mm以下に設定されており、
ポンプ室に関する入口部と出口部とを仕切る仕切
り部が形成されている。一方、円周方向遠い側の
角度範囲L2における流体通路28bの断面積S
は5mm2以上15mm2以下に設定されている。また第2
図に示すように、この角度範囲L2における流体
通路28bの断面に関する高さdは2.8mm以上4.5
mm以下に設定されており、この高さdに対する流
体通路28bの相対する通路側壁Wc1,Wc2とこ
れらの各々に対面するフイン27の溝27aの底
端27bとの間の間隔eの比、すなわちd/eは
0.5以上2以下に設定されている。さらにインペ
ラ24とポンプ室の側壁Wa1,Wa2との間の隙間
f1,f2はその和すなわちf1+f2が、0.07
mm以下となるように設定されている。
3 and 4, the outer diameter D of the impeller 24 is set to 25 mm or more and 55 mm or less, the width a of the groove 27a of each fin 27 is set to 1.2 mm or more and 2.5 mm or less, and the thickness of each fin 27a is set to 1.2 mm or more and 2.5 mm or less. Sab is set to 0.7mm or less. Further, the spacer 22 is provided with a substantially semicircular notch groove 22a corresponding to the inlet 20 of the inner plate 19 and a similar notch groove 22b corresponding to the outlet 23 of the outer plate 6. These notch grooves 22a and 22b
The gap c between the peripheral wall Wb and the tips of the fins 27 to 27 in the liquid passage 28a in the angular range L1 on the side near the circumferential direction is set to 0.1 mm or less,
A partition part is formed to partition an inlet part and an outlet part regarding the pump chamber. On the other hand, the cross-sectional area S of the fluid passage 28b in the angular range L2 on the far side in the circumferential direction
is set to 5 mm 2 or more and 15 mm 2 or less. Also the second
As shown in the figure, the height d with respect to the cross section of the fluid passage 28b in this angular range L2 is 2.8 mm or more and 4.5 mm.
mm or less, and the ratio of the distance e between the opposing passage side walls Wc 1 and Wc 2 of the fluid passage 28b and the bottom end 27b of the groove 27a of the fin 27 facing each of them to the height d. , that is, d/e is
It is set to 0.5 or more and 2 or less. Furthermore, the sum of the gaps f1 and f2 between the impeller 24 and the side walls Wa 1 and Wa 2 of the pump chamber, that is, f1 + f2, is 0.07
It is set to be less than mm.

以上のような設定寸法をまとめれば次のように
なる。
The above set dimensions are summarized as follows.

(1) D=25〜55mm、a=1.2〜2.5mm、 bは0.7mm以下 (2) cは0.1mm以下 (3) S=5〜15mm2 (4) d=2.8〜4.5mm、d/e=0.5〜2 (5) f1+f2は0.07mm以下 このような設定寸法は、考案者による多大な実
験結果として得られたものであり、ポンプ部5を
高圧(締切圧で4Kg/cm2以上)、少流量(2/
min程度)かつ小型のカスケードポンプとして成
立させるのに必要不可欠な設定寸法であることが
判明している。
(1) D = 25 to 55 mm, a = 1.2 to 2.5 mm, b is 0.7 mm or less (2) c is 0.1 mm or less (3) S = 5 to 15 mm 2 (4) d = 2.8 to 4.5 mm, d/ e=0.5~2 (5) f1+f2 is 0.07mm or less These set dimensions were obtained as a result of extensive experiments by the inventor, and the pump section 5 is kept under high pressure (4 kg/cm 2 or more at cutoff pressure). , small flow rate (2/
It has been found that these dimensions are indispensable for establishing a compact cascade pump.

以上のような電動ポンプにおいて、端子棒12
を介してアーマチユア7に通電すると、このアー
マチユア7の回転はジヨイント27を介してイン
ペラ23に伝達される。このインペラ23の回転
により、燃料は流入口20を経てポンプケーシン
グ内に汲み上げられ、流出口28を経てケース1
内に流入した後、アーマチユア7の側部を通つて
燃料吐出口3から高圧、少流量で吐出され、さら
に図示しない機関へ搬送される。このような電動
ポンプの締切圧P(Kg/cm2)−吐出流量Q(/h)
特性は、ポンプ部5においてD=35mm、a=1.7
mm、b=0.3mm、c=0.05mm、S=8mm2、d=3.7
mm、d/e=1.8、f1+f2=0.02mmとした場合、第
6図のごとくなり、最大締切圧として6Kg/cm2
得られる。ただし、ここでアーマチユア7の回転
数は4400rpmに設定されている。
In the electric pump as described above, the terminal bar 12
When the armature 7 is energized via the armature 7, the rotation of the armature 7 is transmitted to the impeller 23 via the joint 27. Due to the rotation of the impeller 23, fuel is pumped into the pump casing through the inlet 20, and then through the outlet 28 into the case 1.
After flowing into the fuel tank, the fuel is discharged from the fuel outlet 3 through the side of the armature 7 at high pressure and at a small flow rate, and is further conveyed to an engine (not shown). Cutoff pressure P (Kg/cm 2 ) - discharge flow rate Q (/h) of such an electric pump
The characteristics are D=35mm and a=1.7 in pump part 5.
mm, b=0.3mm, c=0.05mm, S=8mm 2 , d=3.7
mm, d/e = 1.8, and f 1 + f 2 = 0.02 mm, as shown in Fig. 6, and a maximum shutoff pressure of 6 kg/cm 2 is obtained. However, here the rotation speed of armature 7 is set to 4400 rpm.

以上のようにこの考案は、インペラの外径Dを
25mm以上55mm以下に、各フインの溝の幅aを1.2
mm以上2.5mm以下に、仕切部における流体通路で
のポンプ室周壁とフインの先端との間の隙間cを
0.1mm以下に、仕切部以外の流体通路の断面積S
を5mm2以上15mm2以下に、その断面高さdを2.8mm
以上4.5mm以下に、この高さdに対する流体通路
の軸方向に相対する各通路側壁とそれに対面する
フインの溝の底端との間の間隔eの比、すなわち
d/eを0.5以上2以下に、インペラとこのイン
ペラの軸方向両側に相対して以置する各側壁との
間の隙間f1,f2の和すなわちf1+f2を
0.07mm以下に各々設定したことによつて、従来は
締切圧3〜5Kg/cm2のカスケードポンプを得よう
とすると、インペラ外径が100mm以上になつてし
まうのに対して、25〜50mmのインペラ外径で6.0
Kg/cm2の締切圧を得ることができ、その結果、自
動車用として最も適した小形で燃料圧が高くかつ
脈動のないカスケードポンプを得ることができる
効果がある。
As mentioned above, this idea allows the outer diameter D of the impeller to be
The width a of each fin groove is 1.2 to 25 mm or more and 55 mm or less.
The gap c between the circumferential wall of the pump chamber and the tip of the fin in the fluid passage in the partition should be between mm and 2.5 mm.
The cross-sectional area S of the fluid passage other than the partition is 0.1 mm or less.
5 mm 2 or more and 15 mm 2 or less, and its cross-sectional height d is 2.8 mm.
The ratio of the distance e between each channel side wall facing the axial direction of the fluid passage and the bottom end of the groove of the fin facing it to the height d, that is, d/e, is set to 0.5 or more and 2 or less. Then, the sum of the gaps f1 and f2 between the impeller and the side walls placed opposite to each other on both sides of the impeller in the axial direction, that is, f1 + f2, is calculated as follows:
By setting each value to 0.07 mm or less, conventionally, if you tried to obtain a cascade pump with a shutoff pressure of 3 to 5 kg/ cm2 , the impeller outer diameter would be 100 mm or more, but the outer diameter of the impeller is 25 to 50 mm. 6.0 in impeller outer diameter
A shutoff pressure of Kg/cm 2 can be obtained, and as a result, it is possible to obtain a cascade pump that is compact, has high fuel pressure, and has no pulsation, which is most suitable for automobile use.

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

図は本考案の一実施例を示し、第1図は電動ポ
ンプの縦断面図、第2図は第1図の−線に沿
う断面図、第3図は第2図の−線に沿う断面
の部分図、第4図は第3図のA部拡大図、第5図
は本実施例の電動ポンプにおいて、ポンプ部の寸
法構成を選択的に定めた場合における締切圧P
(Kg/cm2)−吐出流量Q(/h)特性線図である。 5……ポンプ部、7……アーマチユア、19…
…イン側プレート、20……流入口、22……ス
ペーサ、22a,22b……切欠溝、23……流
出口、24……インペラ、27……フイン、27
a……溝、27b……底端、28,28a,28
b……流体通路、Wa1,Wa2……側壁、Wb……
周壁、Wc1,Wc2……通路側壁。
The figures show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view of an electric pump, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a sectional view taken along the - line in Fig. 2. , FIG. 4 is an enlarged view of part A in FIG. 3, and FIG. 5 is a partial view of the cut-off pressure P when the dimensional structure of the pump part is selectively determined in the electric pump of this embodiment.
(Kg/cm 2 )-discharge flow rate Q (/h) characteristic diagram. 5... Pump section, 7... Armature, 19...
...Inside plate, 20 ... Inflow port, 22 ... Spacer, 22a, 22b ... Notch groove, 23 ... Outlet port, 24 ... Impeller, 27 ... Fin, 27
a...Groove, 27b...Bottom end, 28, 28a, 28
b...Fluid passage, Wa 1 , Wa 2 ...Side wall, Wb...
Peripheral wall, Wc 1 , Wc 2 ...Aisle side wall.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] モータにより駆動されるカスケードポンプを構
成するポンプ部を備えた電動ポンプであつて、前
記ポンプ部のインペラの外径Dを25mm以上55mm以
下に、このインペラに設けられた各フインの溝の
幅aを1.2mm以上2.5mm以下に、前記フインの周囲
に形成された流体通路のうち、ポンプ室に関する
入口部と出口部とを仕切る仕切部における流体通
路でのポンプ室周壁と前記フインの先端との間の
隙間cを0.1mm以下に、前記仕切部以外の流体通
路の断面積Sを5mm2以上15mm2以下に、この流体通
路の断面に関する高さdを2.8mm以上4.5mm以下
に、この高さdに対する該流体通路の軸方向に相
対する各通路側壁とそれに対面する前記フインの
溝の底端との間の間隔eの比d/eを0.5以上2
以下に、前記インペラとこのインペラの軸方向両
側に相対して位置する各側壁との間の隙間f1,
f2の和f1+f2を0.07mm以下に各々設定して
なるを特徴とする電動ポンプ。
An electric pump comprising a pump part constituting a cascade pump driven by a motor, wherein the impeller of the pump part has an outer diameter D of 25 mm or more and 55 mm or less, and a groove width a of each fin provided on the impeller. 1.2 mm or more and 2.5 mm or less, and the distance between the peripheral wall of the pump chamber and the tip of the fin at the partition part that partitions the inlet part and the outlet part regarding the pump chamber among the fluid passages formed around the fins. The gap c between the spaces shall be 0.1 mm or less, the cross-sectional area S of the fluid passage other than the partition portion shall be 5 mm 2 or more and 15 mm 2 or less, and the height d regarding the cross section of this fluid passage shall be 2.8 mm or more and 4.5 mm or less. The ratio d/e of the distance e between each passage side wall facing in the axial direction of the fluid passage and the bottom end of the groove of the fin facing thereto is 0.5 or more.
Below, a gap f1 between the impeller and each side wall located opposite to each other on both sides of the impeller in the axial direction,
An electric pump characterized in that the sum of f2, f1+f2, is each set to 0.07 mm or less.
JP5869682U 1982-04-21 1982-04-21 electric pump Granted JPS58161191U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5869682U JPS58161191U (en) 1982-04-21 1982-04-21 electric pump
DE19833313950 DE3313950A1 (en) 1982-04-21 1983-04-18 Electrically driven pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5869682U JPS58161191U (en) 1982-04-21 1982-04-21 electric pump

Publications (2)

Publication Number Publication Date
JPS58161191U JPS58161191U (en) 1983-10-27
JPH032720Y2 true JPH032720Y2 (en) 1991-01-24

Family

ID=13091694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5869682U Granted JPS58161191U (en) 1982-04-21 1982-04-21 electric pump

Country Status (2)

Country Link
JP (1) JPS58161191U (en)
DE (1) DE3313950A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022467C3 (en) * 1990-07-14 1995-08-31 Vdo Schindling Delivery unit, in particular for the delivery of fuel
US5106277A (en) * 1990-08-21 1992-04-21 Walbro Corporation Drive connection for fuel pump rotor
DE9014990U1 (en) * 1990-10-31 1991-01-10 Pierburg GmbH, 4040 Neuss Side channel pump for fuel delivery
US5338165A (en) * 1991-11-25 1994-08-16 Ford Motor Company Automotive fuel pump with modular pump housing
DE4239488C2 (en) * 1992-11-25 2001-06-28 Bosch Gmbh Robert Unit for delivering fuel from a storage tank to the internal combustion engine of a motor vehicle
DE4318122C2 (en) * 1993-06-01 2002-01-17 Bosch Gmbh Robert Unit for delivering fuel from a storage tank to the internal combustion engine of a motor vehicle
JP3907887B2 (en) * 1999-10-28 2007-04-18 株式会社エンプラス Impeller for circumferential flow pump
JP2018119517A (en) * 2017-01-27 2018-08-02 株式会社デンソー Refrigerant pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2319776A (en) * 1940-11-08 1943-05-25 Joshua Hendy Iron Works Rotary pump
DE2832352A1 (en) * 1978-07-22 1980-01-31 Bosch Gmbh Robert Electric fuel pump unit - has rotary pump removably secured in common housing of motor and coupled to motor rotor via dog clutch
DE2906224A1 (en) * 1979-02-17 1980-09-04 Bosch Gmbh Robert FUEL SUPPLY UNIT
JPS5939189Y2 (en) * 1980-01-31 1984-10-31 日産自動車株式会社 Pump device for fluid transfer
US4445820A (en) * 1980-12-27 1984-05-01 Aisan Kogyo Kabushiki Kaisha Electrically powered pump

Also Published As

Publication number Publication date
DE3313950C2 (en) 1990-02-15
JPS58161191U (en) 1983-10-27
DE3313950A1 (en) 1983-10-27

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