Global Patent Index - EP 1655477 B1

EP 1655477 B1 20070815 - Electrohydraulic servovalve

Title (en)

Electrohydraulic servovalve

Title (de)

Elektrohydraulisches Servoventil

Title (fr)

Servo-valve électro-hydraulique

Publication

EP 1655477 B1 20070815 (DE)

Application

EP 05109508 A 20051013

Priority

DE 102004053271 A 20041104

Abstract (en)

[origin: EP1655477A1] The valve has an actuator sided return (17) that is attached to a control valve sided return (22). The return (17) has a backstroke stop valve (25) for blocking an actuator piston area (8) and is throttled. The actuator piston area interacts with a balancing area in which an elastic compressible balanced body is arranged. The actuator sided return is attached within a valve body containing control valve and a switching valve (3). An independent claim is also included for a fuel injection device.

IPC 8 full level

F02M 47/02 (2006.01); F02M 55/00 (2006.01); F02M 63/00 (2006.01)

CPC (source: EP)

F02M 47/025 (2013.01); F02M 47/027 (2013.01); F02M 55/002 (2013.01); F02M 63/0031 (2013.01); F02M 2200/315 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1655477 A1 20060510; EP 1655477 B1 20070815; DE 102004053271 A1 20060511; DE 502005001239 D1 20070927

DOCDB simple family (application)

EP 05109508 A 20051013; DE 102004053271 A 20041104; DE 502005001239 T 20051013