Global Patent Index - EP 0857255 B1

EP 0857255 B1 2002-11-20 - FEEDING PUMP

Title (en)

FEEDING PUMP

Title (de)

STRÖMUNGSPUMPE

Title (fr)

POMPE D'ECOULEMENT

Publication

EP 0857255 B1 (DE)

Application

EP 97922837 A

Priority

  • DE 9700760 W
  • DE 19634900 A

Abstract (en)

[origin: DE19634900A1] The invention relates to a feeding pump, particularly for fuel feeding from the petrol tank. The pump room contains a pump case defined by two radially extending spaced sidewalls (12), by a peripheral wall peripherally connected to both sidewalls (12), by a groove-like side channel (20) disposed inside at least one of the sidewalls (12) and opening out into the pump room, which channel concentrically extends to the pump axle (22) and has an interrupting crossmember between its end (202) and its beginning (201) with respect to flow direction, and by a built-in overshot wheel. In order to reduce pressure amplitudes that are locally very high at the interrupting crossmember due to bucket frequency oscillation, a curved damping groove (36) opening out into the pump room is provided close to the end of said side channel (202) and extends virtually over the width thereof.

IPC 1-7 (main, further and additional classification)

F04D 5/00; F04D 29/66

IPC 8 full level (invention and additional information)

F04D 5/00 (2006.01); F04D 29/66 (2006.01)

CPC (invention and additional information)

F04D 29/669 (2013.01); F04D 5/002 (2013.01)

Designated contracting state (EPC)

DE FR

EPO simple patent family

DE 19634900 A1 19980305; BR 9706636 A 19990914; CN 1197504 A 19981028; EP 0857255 A1 19980812; EP 0857255 B1 20021120; JP 2000500210 A 20000111; US 6017183 A 20000125; WO 9809081 A1 19980305

INPADOC legal status


2003-11-12 [26N] NO OPPOSITION FILED

- Effective date: 20030821

2003-11-01 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20031101

2003-09-05 [EN] FR: TRANSLATION NOT FILED

2003-01-02 [REF] CORRESPONDS TO:

- Document: DE 59708770 20030102

2002-11-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR

2002-11-20 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20021120

2002-03-13 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020128

1998-11-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980907

1998-08-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR