Global Patent Index - EP 0780575 B1

EP 0780575 B1 20030611 - Gear machine

Title (en)

Gear machine

Title (de)

Zahnradmaschine

Title (fr)

Machine à engrenages

Publication

EP 0780575 B1 20030611 (DE)

Application

EP 96114514 A 19960911

Priority

DE 19548613 A 19951223

Abstract (en)

[origin: EP0780575A1] The gear wheel machine has tooth flanks permanently engaged in a double engagement. The engagement points (12,A,E) of two tooth flanks move on a single engagement line (15) which runs at a small engagement angle (18) in the region of the pitch point (12). Sectors of oppositely curved spirals (19,20) meet at this angle. This gives a degree of cover of more than 2.0 in the region of up to sixteen teeth. The engagement line may run in a third-order parabola in the region of the pitch point of the gear wheel pair.

IPC 1-7

F04C 2/18

IPC 8 full level

F04C 2/08 (2006.01); F04C 2/18 (2006.01)

CPC (source: EP)

F04C 2/084 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0780575 A1 19970625; EP 0780575 B1 20030611; DE 19548613 A1 19970717; DE 19548613 C2 20030821; DE 59610528 D1 20030717

DOCDB simple family (application)

EP 96114514 A 19960911; DE 19548613 A 19951223; DE 59610528 T 19960911