EP 1163454 B1 20040107 - HYDRAULIC PILOT CONTROL
Title (en)
HYDRAULIC PILOT CONTROL
Title (de)
HYDRAULISCHE VORSTEUERUNG
Title (fr)
COMMANDE PILOTE HYDRAULIQUE
Publication
Application
Priority
- DE 19913276 A 19990324
- EP 0001790 W 20000302
Abstract (en)
[origin: DE19913276A1] The invention relates to a hydraulic pilot control comprising two control outputs (96, 97) which can be impinged upon by a control pressure and a hydraulic pilot control device which has a lever (81) that can be moved from a neutral position in a first and second direction. The hydraulic pilot control also comprises a pressure valve (69) which can be adjusted by displacing the lever from the neutral position. In a control pilot of this type, it should be possible to adjust the symmetrical behaviour of the pilot pressure used to displace the control lever in said two directions in a simple manner. To this end, the invention provides that the pressure valve can be adjusted in the same way, for both a displacement of the lever in the first direction and a displacement of the lever in the second direction. A directional valve (73) connects a regulating output (80) of the pressure valve to the first control output (96) or to the second control output (97), depending on the direction in which the lever is displaced.
IPC 1-7
IPC 8 full level
B66D 1/44 (2006.01); F15B 13/04 (2006.01); F15B 13/042 (2006.01); F15B 13/07 (2006.01); F16K 11/07 (2006.01); F16K 17/06 (2006.01); F16K 31/44 (2006.01); F16K 31/524 (2006.01); G05G 1/04 (2006.01); G05G 9/00 (2006.01)
CPC (source: EP KR US)
B66D 1/44 (2013.01 - EP US); F15B 13/0406 (2013.01 - EP US); F15B 13/0422 (2013.01 - EP US); F15B 13/06 (2013.01 - KR); F15B 13/07 (2013.01 - EP US); G05G 1/04 (2013.01 - EP US); Y10T 137/86654 (2015.04 - EP US); Y10T 137/87169 (2015.04 - EP US)
Designated contracting state (EPC)
DE GB NL SE
DOCDB simple family (publication)
DE 19913276 A1 20000928; DE 50004983 D1 20040212; EP 1163454 A1 20011219; EP 1163454 B1 20040107; JP 2002540353 A 20021126; KR 20010109320 A 20011208; NO 20014575 D0 20010920; NO 20014575 L 20010920; US 6481461 B1 20021119; WO 0057067 A1 20000928
DOCDB simple family (application)
DE 19913276 A 19990324; DE 50004983 T 20000302; EP 0001790 W 20000302; EP 00910754 A 20000302; JP 2000606908 A 20000302; KR 20017012130 A 20010924; NO 20014575 A 20010920; US 93732301 A 20010920