JPS6425494U - - Google Patents

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Publication number
JPS6425494U
JPS6425494U JP12007887U JP12007887U JPS6425494U JP S6425494 U JPS6425494 U JP S6425494U JP 12007887 U JP12007887 U JP 12007887U JP 12007887 U JP12007887 U JP 12007887U JP S6425494 U JPS6425494 U JP S6425494U
Authority
JP
Japan
Prior art keywords
flow path
pump
predetermined position
channel region
discharge hole
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
JP12007887U
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 JP12007887U priority Critical patent/JPS6425494U/ja
Publication of JPS6425494U publication Critical patent/JPS6425494U/ja
Pending legal-status Critical Current

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

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

第1図乃至第8図は本考案に係る車両用燃料ポ
ンプ装置の一実施例を示し、第1図は燃料ポンプ
装置の縦断面図、第2図は第1図のA―A線断面
図、第3図は第2図に示す環状の流路の一部を構
成するポンプカバー側流路をその平均直径円周断
面にて展開した拡大展開図、第4図は第3図のB
部の拡大図、第5図は再生ポンプ部の環状の流路
部分の拡大円周断面展開図、第6図は環状の流路
内部の燃料圧力分布特性図、第7図は燃料温度に
対する吐出流量の特性図、第8図はポンプ再起動
特性図であり、第9図及び第10図は本考案の他
の実施例を示し、第9図は第1図のA―A線断面
図、第10図は第9図のG―G線拡大断面図であ
る。 1……車両用燃料ポンプ装置、2……再生ポン
プ部、3……モータ部、4……ポンプケーシング
、5……ポンプカバー、6……ポンプ室、7……
インペラ、7a……羽根溝、7b,7c……側面
、8……円弧状凹部、9……円弧状凹部、9a…
…傾斜した底面、10……環状の流路、10a…
…第1の傾斜流路領域、10b……平坦流路領域
、10c……第2の傾斜流路領域、11……吸込
孔、12……吐出孔、13……排出孔、15……
溝、C……吸込孔基端位置、D……第1の所定位
置、E……第2の所定位置、F……吐出孔終端位
置。
1 to 8 show an embodiment of a fuel pump device for a vehicle according to the present invention, FIG. 1 is a longitudinal cross-sectional view of the fuel pump device, and FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1. , Fig. 3 is an enlarged developed view of the pump cover side flow passage, which constitutes a part of the annular flow passage shown in Fig. 2, developed in its average diameter circumferential cross section, and Fig. 4 is B of Fig. 3.
Fig. 5 is an enlarged circumferential cross-sectional development view of the annular flow path portion of the regeneration pump part, Fig. 6 is a fuel pressure distribution characteristic diagram inside the annular flow path, and Fig. 7 is a discharge versus fuel temperature. Flow rate characteristic diagram, FIG. 8 is a pump restart characteristic diagram, FIGS. 9 and 10 show other embodiments of the present invention, and FIG. 9 is a sectional view taken along the line A--A in FIG. FIG. 10 is an enlarged sectional view taken along the line GG in FIG. 9. DESCRIPTION OF SYMBOLS 1...Vehicle fuel pump device, 2...Regeneration pump section, 3...Motor section, 4...Pump casing, 5...Pump cover, 6...Pump chamber, 7...
Impeller, 7a...Blade groove, 7b, 7c...Side surface, 8...Circular recess, 9...Circular recess, 9a...
... Slanted bottom surface, 10 ... Annular flow path, 10a ...
...First inclined channel region, 10b... Flat channel region, 10c... Second inclined channel region, 11... Suction hole, 12... Discharge hole, 13... Discharge hole, 15...
Groove, C...Suction hole base end position, D...First predetermined position, E...Second predetermined position, F...Discharge hole terminal position.

Claims (1)

【実用新案登録請求の範囲】 (1) 再生ポンプ部と該再生ポンプ部を駆動する
モータ部とを有し、前記再生ポンプ部は、ポンプ
ケーシングとポンプカバーにより画定されたポン
プ室に配設され前記モータ部に作動連結したイン
ペラと、前記ポンプケーシング及びポンプカバー
に夫々設けた円弧状凹部により前記インペラの外
周に設けた多数の羽根溝を包囲する如く形成した
環状の流路と、前記ポンプカバー及びポンプケー
シングに設けられ夫々該流路の始端及び終端に連
通する吸込孔及び吐出孔と、前記環状の流路の中
間部に設けられベイパーをポンプ外部に排出させ
る排出孔とを備え、燃料タンク内に装架される車
両用燃料ポンプ装置において、前記環状の流路は
、前記インペラの両側面に対し前記吸込孔側に傾
斜するとともに流路断面積が吸込孔基端位置にお
いて最大であり第1の所定位置に向うにつれて徐
々に減小する如く形成した前記吸込孔から第1の
所定位置に至る第1の傾斜流路領域と、該インペ
ラの両側面に対し平行であり、流路断面積が一定
となる如く形成した前記第1の所定位置から第2
の所定位置に至る平坦流路領域と、該インペラの
両側面に対し前記吐出孔側に傾斜するとともに流
路断面積が一定であり前記平坦流路領域の流路断
面積と略同一となる如く形成した前記第2の所定
位置から該吐出孔に至る第2の傾斜流路領域とか
ら成り、前記第1の傾斜流路領域の該第1の所定
位置近傍にポンプ外部と連通する前記排出孔を設
けたことを特徴とする車両用燃料ポンプ装置。 (2) 前記第1の傾斜流路領域、前記平坦流路領
域及び前記第2の傾斜流路領域は、前記環状の流
路を円周方向に略3等分した各流路領域寸法とす
るとともに、前記ポンプカバー側円弧状凹部の深
さ寸法を前記第1の傾斜流路領域の吸込孔基端位
置においてaとし、前記平坦流路領域においてb
としたとき、a=2.5b〜5bの関係にあるこ
とを特徴とする実用新案登録請求の範囲第1項記
載の車両用燃料ポンプ装置。 (3) 前記第1の傾斜流路領域の一部を構成する
前記ポンプカバー側円弧状凹部の傾斜した底面の
前記第1の所定位置近傍に前記インペラの両側面
に対し平行な溝を設け、この溝に前記排出孔を設
けたことを特徴とする実用新案登録請求の範囲第
1項又は第2項記載の車両用燃料ポンプ装置。
[Claims for Utility Model Registration] (1) A pump having a regeneration pump section and a motor section for driving the regeneration pump section, the regeneration pump section being disposed in a pump chamber defined by a pump casing and a pump cover. an impeller operatively connected to the motor section, an annular flow path formed so as to surround a large number of blade grooves provided on the outer periphery of the impeller by arc-shaped recesses provided in the pump casing and the pump cover, respectively; and the pump cover. and a suction hole and a discharge hole provided in the pump casing and communicating with the starting and ending ends of the flow path, respectively, and a discharge hole provided in the middle of the annular flow path for discharging vapor to the outside of the pump, and a fuel tank. In the vehicle fuel pump device installed in the vehicle fuel pump device, the annular flow path is inclined toward the suction hole with respect to both side surfaces of the impeller, and the cross-sectional area of the flow path is maximum at the base end position of the suction hole. a first inclined flow path region extending from the suction hole to the first predetermined position, which is formed so as to gradually decrease toward the first predetermined position; from the first predetermined position to the second predetermined position formed such that the
a flat flow path area that reaches a predetermined position, and a flow path area that is inclined toward the discharge hole side with respect to both sides of the impeller and has a constant flow path cross-sectional area and is approximately the same as the flow path cross-sectional area of the flat flow path area. and a second inclined flow path region extending from the second predetermined position formed to the discharge hole, and the discharge hole communicates with the outside of the pump in the vicinity of the first predetermined position of the first inclined flow path region. A fuel pump device for a vehicle, characterized in that it is provided with. (2) The first inclined channel region, the flat channel region, and the second inclined channel region have respective channel region dimensions obtained by dividing the annular channel into approximately three equal parts in the circumferential direction. In addition, the depth dimension of the arc-shaped recess on the pump cover side is a at the suction hole base end position of the first inclined channel region, and b at the flat channel region.
The fuel pump device for a vehicle according to claim 1, wherein the relationship a=2.5b to 5b holds true. (3) providing grooves parallel to both side surfaces of the impeller in the vicinity of the first predetermined position on the inclined bottom surface of the pump cover-side arcuate recess that constitutes a part of the first inclined flow path region; The fuel pump device for a vehicle according to claim 1 or 2, characterized in that the discharge hole is provided in this groove.
JP12007887U 1987-08-05 1987-08-05 Pending JPS6425494U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12007887U JPS6425494U (en) 1987-08-05 1987-08-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12007887U JPS6425494U (en) 1987-08-05 1987-08-05

Publications (1)

Publication Number Publication Date
JPS6425494U true JPS6425494U (en) 1989-02-13

Family

ID=31365864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12007887U Pending JPS6425494U (en) 1987-08-05 1987-08-05

Country Status (1)

Country Link
JP (1) JPS6425494U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02107785U (en) * 1989-02-10 1990-08-28
GB2263503A (en) * 1992-01-22 1993-07-28 Nippon Denso Co Inlet configuration of a fuel pump.
KR100893143B1 (en) 2007-10-19 2009-04-16 현담산업 주식회사 Impeller case of fuel pump
US7602827B2 (en) 2004-05-11 2009-10-13 Nec Electronics Corporation Semiconductor laser and manufacturing process therefor
US7796663B2 (en) * 2001-05-31 2010-09-14 Nichia Corporation Semiconductor laser device
US7899100B2 (en) 2002-03-01 2011-03-01 Sharp Kabushiki Kaisha GaN laser element
JP2011153576A (en) * 2010-01-27 2011-08-11 Mitsubishi Heavy Ind Ltd Fluid circulating structure
JP2013514482A (en) * 2009-12-16 2013-04-25 コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツング Fuel pump
WO2014111272A1 (en) * 2013-01-18 2014-07-24 Robert Bosch Gmbh Side-channel pump with asymmetrical cross-sections of the side channels

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02107785U (en) * 1989-02-10 1990-08-28
GB2263503A (en) * 1992-01-22 1993-07-28 Nippon Denso Co Inlet configuration of a fuel pump.
US5336045A (en) * 1992-01-22 1994-08-09 Nippondenso Co., Ltd. Fuel pump
GB2263503B (en) * 1992-01-22 1995-07-26 Nippon Denso Co Fuel pump
DE4300845C2 (en) * 1992-01-22 2001-02-15 Denso Corp Fuel pump
US7796663B2 (en) * 2001-05-31 2010-09-14 Nichia Corporation Semiconductor laser device
US7899100B2 (en) 2002-03-01 2011-03-01 Sharp Kabushiki Kaisha GaN laser element
US7602827B2 (en) 2004-05-11 2009-10-13 Nec Electronics Corporation Semiconductor laser and manufacturing process therefor
KR100893143B1 (en) 2007-10-19 2009-04-16 현담산업 주식회사 Impeller case of fuel pump
JP2013514482A (en) * 2009-12-16 2013-04-25 コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツング Fuel pump
JP2011153576A (en) * 2010-01-27 2011-08-11 Mitsubishi Heavy Ind Ltd Fluid circulating structure
WO2014111272A1 (en) * 2013-01-18 2014-07-24 Robert Bosch Gmbh Side-channel pump with asymmetrical cross-sections of the side channels

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