JP2005090340A5 - - Google Patents

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Publication number
JP2005090340A5
JP2005090340A5 JP2003324271A JP2003324271A JP2005090340A5 JP 2005090340 A5 JP2005090340 A5 JP 2005090340A5 JP 2003324271 A JP2003324271 A JP 2003324271A JP 2003324271 A JP2003324271 A JP 2003324271A JP 2005090340 A5 JP2005090340 A5 JP 2005090340A5
Authority
JP
Japan
Prior art keywords
casing
flow path
groove
impeller
upstream end
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
JP2003324271A
Other languages
Japanese (ja)
Other versions
JP2005090340A (en
JP4209748B2 (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2003324271A priority Critical patent/JP4209748B2/en
Priority claimed from JP2003324271A external-priority patent/JP4209748B2/en
Publication of JP2005090340A publication Critical patent/JP2005090340A/en
Publication of JP2005090340A5 publication Critical patent/JP2005090340A5/ja
Application granted granted Critical
Publication of JP4209748B2 publication Critical patent/JP4209748B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Claims (2)

表裏両面に円環状に複数の凹所群が形成されているインペラと、このインペラを回転可能に収容するケーシングとを備え、ケーシングのインペラの凹所群と対向する領域には、燃料吸込流路と燃料吐出流路とを連通する溝状流路が形成されている燃料ポンプであり、
ケーシングには、表面側の凹所群と対向する溝状流路の上流端と裏面側の凹所群と対向する溝状流路の上流端の双方とケーシング外とを連通する燃料吸込流路と、全周に亘ってインペラ外周面に対向するケーシング内周面が形成されていることを特徴とする燃料ポンプ。 A fuel suction passage is provided in a region facing the recess group of the impeller of the casing, and includes an impeller having a plurality of recess groups formed in an annular shape on both front and back surfaces, and a casing that rotatably accommodates the impeller. And a fuel pump in which a groove-like flow path communicating with the fuel discharge flow path is formed,
The casing has a fuel suction flow path that communicates both the upstream end of the groove-shaped flow path facing the recess group on the front surface side and the upstream end of the groove-shaped flow path facing the recess group on the back side, and the outside of the casing. And a casing inner peripheral surface facing the outer peripheral surface of the impeller is formed over the entire periphery. ケーシング外から表面側の溝状流路の上流端に連通する表面側燃料吸込流路と、ケーシング外から裏面側の溝状流路の上流端に連通する裏面側燃料吸込流路が、独立に設けられていることを特徴とする請求項１に記載の燃料ポンプ。   A front-side fuel suction channel that communicates from the outside of the casing to the upstream end of the groove-shaped channel on the front surface side, and a back-side fuel suction channel that communicates from the outside of the casing to the upstream end of the groove-shaped channel on the rear side are independently The fuel pump according to claim 1, wherein the fuel pump is provided.
JP2003324271A 2003-09-17 2003-09-17 Fuel pump Expired - Fee Related JP4209748B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003324271A JP4209748B2 (en) 2003-09-17 2003-09-17 Fuel pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003324271A JP4209748B2 (en) 2003-09-17 2003-09-17 Fuel pump

Publications (3)

Publication Number Publication Date
JP2005090340A JP2005090340A (en) 2005-04-07
JP2005090340A5 true JP2005090340A5 (en) 2005-11-10
JP4209748B2 JP4209748B2 (en) 2009-01-14

Family

ID=34455069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003324271A Expired - Fee Related JP4209748B2 (en) 2003-09-17 2003-09-17 Fuel pump

Country Status (1)

Country Link
JP (1) JP4209748B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003555B4 (en) * 2006-08-04 2016-11-10 Continental Automotive Gmbh Feed pump with filter

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