Global Patent Index - EP 1290337 A1

EP 1290337 A1 20030312 - METHOD AND DEVICE FOR TREATING EDGES IN A HIGH PRESSURE FUEL ACCUMULATOR

Title (en)

METHOD AND DEVICE FOR TREATING EDGES IN A HIGH PRESSURE FUEL ACCUMULATOR

Title (de)

VERFAHREN UND VORRICHTUNG ZUR KANTENBEARBEITUNG IN EINEM KRAFTSTOFFHOCHDRUCKSPEICHER

Title (fr)

PROCEDE ET DISPOSITIF D'USINAGE DES BORDS DANS UN RESERVOIR DE CARBURANT HAUTE PRESSION

Publication

EP 1290337 A1 20030312 (DE)

Application

EP 01943010 A 20010503

Priority

  • DE 0101681 W 20010503
  • DE 10027364 A 20000602

Abstract (en)

[origin: WO0192716A1] The invention relates to a method and a device for treating edges in a high-pressure fuel accumulator comprising a longitudinally extended tubular casing body (1) which is provided with a through recess (2) in a longitudinal direction, this through recess forming the inner cavity of the high-pressure fuel accumulator and being open on at least one side. At least one through opening (5) in the form of a bore opens into said through recess, said through opening forming a circular edge (7) with the through recess (2). According to the invention, a longitudinally extending actuating part (13) is introduced into the through recess (2). The end of said actuating part that is introduced into the through recess (2) in provided with a surface section (14) that is slanted in relation to the longitudinal axis (6) of the through recess (2). This surface section acts at least indirectly on a pressure part (10) introduced into the through recess (2) in such a way that a surface piece (10a) of the pressure part (10) is pressed against the circular edge (7), and the resulting displacement of material in the area of the edge (7) smoothes out the contour of said edge. The invention also relates to a device for carrying out this method.

IPC 1-7

F02M 55/02; B21C 37/29

IPC 8 full level

B21C 37/29 (2006.01); B21C 37/30 (2006.01); B23P 9/02 (2006.01); B24B 39/00 (2006.01); F02M 55/00 (2006.01); F02M 55/02 (2006.01)

CPC (source: EP US)

B21C 37/30 (2013.01 - EP US); B23P 9/02 (2013.01 - EP US); F02M 55/00 (2013.01 - EP US); F02M 55/025 (2013.01 - EP US); Y10T 29/47 (2015.01 - EP US)

Citation (search report)

See references of WO 0192716A1

Designated contracting state (EPC)

DE FR IT

DOCDB simple family (publication)

WO 0192716 A1 20011206; DE 10027364 A1 20011206; EP 1290337 A1 20030312; JP 2003535267 A 20031125; US 2002134354 A1 20020926; US 6715327 B2 20040406

DOCDB simple family (application)

DE 0101681 W 20010503; DE 10027364 A 20000602; EP 01943010 A 20010503; JP 2002500097 A 20010503; US 4887902 A 20020425