Title (en)

Sealing arrangement, especially for injectors of an internal combustion engine and method for manufacturing such a sealing seat

Title (de)

Dichtungsanordnung, insbesondere für Brennstoffeinspritzventile in Brennkraftmaschinen und Verfahren zur Herstellung eines Dichtsitzes

Title (fr)

Dispositif d'étanchéité, en particulier pour injecteurs de moteur à combustion interne et procédé d'un tel siège d'étanchéité

Publication

EP 0955128 A3 20010411 (DE)

Application

EP 98109828 A 19980529

Priority

US 7355098 A 19980506

Abstract (en)

[origin: US6173494B1] A valve seat for a ball valve, especially a fuel-injection valve for an internal-combustion engine is finely ground to form a trough in the conically-ground seat with a circular arc cross section in planes of the axis and of a depth to eliminate shape variations in the conically-ground valve seat. The circular arc radius of the trough is greater than the radius of the ball.

IPC 1-7

B24B 15/02; B24B 11/00

IPC 8 full level

B24B 11/00 (2006.01); B24B 15/02 (2006.01); F02M 61/16 (2006.01)

CPC (source: EP US)

B24B 11/00 (2013.01 - EP US); B24B 15/02 (2013.01 - EP US); F02M 61/168 (2013.01 - EP US); Y10T 29/49375 (2015.01 - EP US); Y10T 29/49409 (2015.01 - EP US); Y10T 137/0318 (2015.04 - EP US); Y10T 137/791 (2015.04 - EP US)

Citation (search report)

• [A] WO 9728392 A2 19970807 - SIEMENS AUTOMOTIVE CORP LP [US]
• [A] US 4365747 A 19821228 - KNAPP HEINRICH, et al
• [A] DE 2033051 A1 19720105 - BOSCH GMBH ROBERT
• [A] DE 19545333 A1 19970612 - BOSCH GMBH ROBERT [DE]
• [A] DE 2410805 A1 19750911 - ZAHNRADFABRIK FRIEDRICHSHAFEN

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

US 6173494 B1 20010116; DE 59804798 D1 20020822; EP 0955128 A2 19991110; EP 0955128 A3 20010411; EP 0955128 B1 20020717; US 6098958 A 20000808

DOCDB simple family (application)

US 49054400 A 20000124; DE 59804798 T 19980529; EP 98109828 A 19980529; US 7355098 A 19980506