EP 3358181 A1 20180808 - VARIABLE-DISPLACEMENT HYDRAULIC MOTOR HAVING AN APPARATUS FOR CONTROLLING THE VARIATION IN POSITION OF AN ECCENTRIC CAM OF THE MOTOR AND METHOD FOR CONTROLLING THE VARIATION IN POSITION OF THE ECCENTRIC CAM OF THE VARIABLE-DISPLACEMENT HYDRAULIC MOTOR
Title (en)
VARIABLE-DISPLACEMENT HYDRAULIC MOTOR HAVING AN APPARATUS FOR CONTROLLING THE VARIATION IN POSITION OF AN ECCENTRIC CAM OF THE MOTOR AND METHOD FOR CONTROLLING THE VARIATION IN POSITION OF THE ECCENTRIC CAM OF THE VARIABLE-DISPLACEMENT HYDRAULIC MOTOR
Title (de)
HYDRAULISCHER VERSTELLMOTOR MIT EINER VORRICHTUNG ZUR STEUERUNG DER POSITIONSÄNDERUNG EINES EXZENTRISCHEN NOCKENS DES MOTORS UND VERFAHREN ZUR STEUERUNG DER POSITIONSÄNDERUNG DES EXZENTRISCHEN NOCKENS DES HYDRAULISCHEN VERSTELLMOTORS
Title (fr)
MOTEUR HYDRAULIQUE À CYLINDRÉE VARIABLE COMPORTANT UN DISPOSITIF POUR COMMANDER LA VARIATION DE POSITION D'UNE CAME EXCENTRIQUE DU MOTEUR ET PROCÉDÉ POUR COMMANDER LA VARIATION DE POSITION DE LA CAME EXCENTRIQUE DU MOTEUR HYDRAULIQUE À CYLINDRÉE VARIABLE
Publication
Application
Priority
IT 201700012623 A 20170206
Abstract (en)
Apparatus for controlling the position of an eccentric cam (306) of a shaft of a variable-displacement hydraulic motor (300), which comprises: - a control and command unit (200), which is feedback-connected between points for detecting one or more existing operating parameters (320a,320b,320c) of the motor (300) and points for entering set parameters (250a,250b,250c) for the one or more existing operating parameters of the motor and which is designed to control operation of a unit (100) for actuating the eccentric cam (306) connected to the shaft of the motor (300), the actuating unit being inserted in the hydraulic circuit (120) of means (350) for moving said eccentric cam (306), wherein said actuating unit (100) comprises a direct-control electrovalve (110) driven by variable-duration pulses emitted by the control and command unit (200) depending on the difference between an existing value (320,320b320c) detected and a desired stored (262) value (250a,250b,250c) of one of said parameters.
IPC 8 full level
F03C 1/053 (2006.01); F03C 1/28 (2006.01); F03C 1/32 (2006.01); F03C 1/40 (2006.01); F04B 1/0408 (2020.01); F04B 1/0421 (2020.01); F04B 1/0531 (2020.01); F04B 1/07 (2006.01); F04B 1/113 (2020.01); F04B 49/06 (2006.01); F04B 49/12 (2006.01)
CPC (source: EP US)
F03C 1/0406 (2013.01 - EP); F03C 1/0415 (2013.01 - EP); F03C 1/046 (2013.01 - EP); F03C 1/053 (2013.01 - EP); F04B 1/0408 (2013.01 - EP); F04B 1/0421 (2013.01 - EP); F04B 1/0531 (2013.01 - EP); F04B 1/07 (2013.01 - EP US); F04B 1/113 (2013.01 - EP US); F04B 49/065 (2013.01 - EP US); F04B 49/125 (2013.01 - EP US)
Citation (search report)
- [IY] US 5628188 A 19970513 - KORDAK ROLF [DE]
- [IA] US 2009133761 A1 20090528 - GEISSLER GRIT [DE], et al
- [IA] US 4983099 A 19910108 - TSAI SHAN-CHIN [US]
- [YA] EP 1241356 A2 20020918 - TEIJIN SEIKI CO LTD [JP]
- [A] US 2015240961 A1 20150827 - OFFENBURGER JOHANNES [GB], et al
- [A] EP 2518220 A2 20121031 - DOOSAN INFRACORE CO LTD [KR]
- [A] EP 1624185 A2 20060208 - PARKER CALZONI S R L [IT]
- [A] US 2012259580 A1 20121011 - SIEGER MANFRED [DE], et al
- [A] US 6038871 A 20000321 - GUTIERREZ ERNESTO JOSE [US], et al
- [A] US 2015300522 A1 20151022 - ITO ATSUSHI [JP], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3358181 A1 20180808; EP 3358181 B1 20200701; IT 201700012623 A1 20180806
DOCDB simple family (application)
EP 18154986 A 20180202; IT 201700012623 A 20170206