Global Patent Index - EP 3067308 A1

EP 3067308 A1 20160914 - A HYDRAULIC SYSTEM WITH ADDITIONAL PROTECTION OF OPERATION OF CLUTCH AND DRUM BRAKE HYDRAULIC CIRCUIT IN A FORESTRY WINCH

Title (en)

A HYDRAULIC SYSTEM WITH ADDITIONAL PROTECTION OF OPERATION OF CLUTCH AND DRUM BRAKE HYDRAULIC CIRCUIT IN A FORESTRY WINCH

Title (de)

HYDRAULISCHES SYSTEM MIT ZUSÄTZLICHEM SCHUTZ DES BETRIEBS DER KUPPLUNG UND TROMMELBREMSENHYDRAULIKKREISLAUF IN EINER FORSTSEILWINDE

Title (fr)

SYSTÈME HYDRAULIQUE AVEC UNE PROTECTION SUPPLÉMENTAIRE DE FONCTIONNEMENT DE FREIN ET CIRCUIT DE FREINAGE HYDRAULIQUE À TAMBOUR DANS UN TREUIL FORESTIER

Publication

EP 3067308 A1 20160914 (EN)

Application

EP 16158966 A 20160307

Priority

SI 201500062 A 20150313

Abstract (en)

The invention belongs to the field of mechanical engineering, more precisely to the field of hydraulic systems with a hydraulic accumulator as an additional source of hydraulic pressure/compressive energy in particularly suitable for machines with unequal consumption. At the same time, the invention also belongs to the field of forestry winches with hydraulically controlled brake and clutch of a winding drum in a forestry winch. The hydraulic system with additional protection of operation of the hydraulic circuit of the clutch and drum brake in a forestry winch comprises an oil reservoir 1, a filter 2, a pump 3, a check valve 4, a pressure relief valve 5, a control valve 6, a check valve 7 with a throttle 8, a valve 11, a hydraulic accumulator 9, a check valve 12 with an adjustable throttle 13, a valve 19 with a throttle 18, a hydromotor 19, a cylinder 14 of the brake and a cylinder 15 of the clutch. The entire hydraulic system is mechanically integrated into the housing of a forestry winch.

IPC 8 full level

B66D 1/16 (2006.01); B66D 1/44 (2006.01)

CPC (source: EP)

B66D 1/08 (2013.01); B66D 1/16 (2013.01); B66D 1/44 (2013.01); B66D 1/58 (2013.01); F15B 1/26 (2013.01); F15B 2211/20538 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/212 (2013.01); F15B 2211/30585 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/40553 (2013.01); F15B 2211/7058 (2013.01); F15B 2211/7135 (2013.01); F15B 2211/715 (2013.01); F15B 2211/75 (2013.01); F15B 2211/8636 (2013.01); F15B 2211/8757 (2013.01)

Citation (applicant)

Citation (search report)

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 3067308 A1 20160914; EP 3067308 B1 20201118; SI 24950 A 20160930; SI 3067308 T1 20210430

DOCDB simple family (application)

EP 16158966 A 20160307; SI 201500062 A 20150313; SI 201631097 T 20160307