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1. (WO1986005243) A DEVICE FOR SYNCHRONIZED HYDRAULIC FLUID SUPPLY OF TWO OR MORE HYDRAULIC MOTORS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1986/005243 International Application No.: PCT/SE1986/000079
Publication Date: 12.09.1986 International Filing Date: 24.02.1986
IPC:
B66F 7/20 (2006.01) ,F15B 11/22 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
66
HOISTING; LIFTING; HAULING
F
HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
7
Lifting frames, e.g. for lifting vehicles; Platform lifts
10
with platforms supported directly by jacks
16
by one or more hydraulic or pneumatic jacks
20
by several jacks with means for maintaining the platforms horizontal during movement
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11
Servomotor systems without provision for follow-up action
16
with two or more servomotors
22
Synchronisation of the movement of two or more servomotors
Applicants:
NILSSON, Nils-Enar [SE/SE]; SE
Inventors:
NILSSON, Nils-Enar; SE
Agent:
BJERKÉN, Jarl, Ha^okan; Bjerkéns/Gävle Patentbyra^o AB Box 304 S-801 04 Gävle 1, SE
Priority Data:
8501054-405.03.1985SE
Title (EN) A DEVICE FOR SYNCHRONIZED HYDRAULIC FLUID SUPPLY OF TWO OR MORE HYDRAULIC MOTORS
(FR) DISPOSITIF D'ALIMENTATION SYNCHRONISEE EN FLUIDE HYDRAULIQUE DE DEUX OU PLUSIEURS MOTEURS HYDRAULIQUES
Abstract:
(EN) A device for providing a synchronized fluid supply to and fluid evacuation from at least two linear hydraulic motors (9a, 9b) comprises a pumping arrangement including for each of the hydraulic motors a particular hydraulic cylinder pump (16a, 16b) such that each of these pumps fluidly co-operates with only one motor, parts (17a, 17b) comprised in the pumps and adapted to, on movement thereof, cause fluid supply to and fluid evacuation from the motors being interconnected by a linearly movable element (18) of a driving arrangement. The hydraulic pumps have openings which enable communication between the working chambers of the pumps and a hydraulic fluid reservoir when said working chambers are substantially maximal but which are automatically closed off when the volume of the working chambers is reduced.
(FR) Dispositif d'alimentation synchronisée en fluide et d'évacuation de fluide d'au moins deux moteurs hydrauliques linéaires (9a, 9b), consistant en un agencement de pompage comprenant pour chacun des moteurs hydrauliques une pompe de cylindre hydraulique particulière (16a, 16b), chacune de ces pompes n'agissant de concert par fluide qu'avec un moteur, des parties (17a, 17b) comprises dans les pompes et permettant, par leur déplacement, l'alimentation en fluide et l'évacuation du fluide des moteurs étant reliées par un élément mobile linéairement (18) d'un agencement d'entraînement. Les pompes hydrauliques présentent des ouvertures mettant en communication les chambres de travail des pompes et un réservoir de fluide hydraulique lorsque le volume desdites chambres de travail est au maximum, ces ouvertures étant fermées automatiquement lorsque le volume des chambres de travail est réduit.
Designated States: AU, NO, US
European Patent Office (EPO) (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)