Processing

Please wait...

Settings

Settings

Goto Application

1. WO2006102514 - SELF-SYNCHRONIZING HYDRAULIC SYSTEM

Publication Number WO/2006/102514
Publication Date 28.09.2006
International Application No. PCT/US2006/010603
International Filing Date 23.03.2006
IPC
F15B 11/22 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11Servomotor systems without provision for follow-up action
16with two or more servomotors
22Synchronisation of the movement of two or more servomotors
CPC
B62D 5/061
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
06fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
061provided with effort, steering lock, or end-of-stroke limiters
B62D 5/12
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
06fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
10characterised by type of power unit
12Piston and cylinder
B62D 7/142
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
7Steering linkage; Stub axles or their mountings
06for individually-pivoted wheels, e.g. on king-pins
14the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
142specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
F15B 11/22
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11Servomotor systems without provision for follow-up action; ; Circuits therefor
16With two or more servomotors
22Synchronisation of the movement of two or more servomotors
F15B 2211/7121
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
2211Circuits for servomotor systems
70Output members, e.g. hydraulic motors or cylinders or control therefor
71Multiple output members, e.g. multiple hydraulic motors or cylinders
7114with direct connection between the chambers of different actuators
7121the chambers being connected in series
Applicants
  • CLARK EQUIPMENT COMPANY [US]/[US] (AllExceptUS)
  • KRIEGER, Daniel, J. [US]/[US] (UsOnly)
Inventors
  • KRIEGER, Daniel, J.
Agents
  • PRICE, David, R.
Priority Data
11/087,33823.03.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SELF-SYNCHRONIZING HYDRAULIC SYSTEM
(FR) SYSTEME HYDRAULIQUE A SYNCHRONISATION AUTOMATIQUE
Abstract
(EN)
A fluid system (e.g. 2, 302, 402, 502) is described, which comprises first and second cylinders (e.g. 10, 20, 310, 320, 410, 420, 510) , each of which comprises a piston (e.g. 16, 26, 316, 326, 416, 426, 516) , and a first end (e.g. 12, 22, 312, 322, 412, 422, 512) and a second end (e.g. 14, 24, 314, 324, 414, 424, 514) corresponding to full stroke positions of the corresponding piston. The first ends and second ends of the two cylinders thereby define four cylinder ends. The first and second cylinders are fluidly coupled to each other via a first matched pair of cylinder ends selected from the first ends or the second ends. The system includes first and second bypass devices (e.g. 40, 42, 342, 340, 440, 442, 540, 542) . The bypass devices are each configured so that when a full stroke position is occupied at a respective bypass end from among the four cylinder ends by the corresponding piston, the respective bypass device opens an outlet that allows a flow from the respective cylinder to bypass to a conduit (e.g. 32, 34, 332, 334, 432, 438, 532, 534) coupled to the respective bypass end. This allows for the two cylinders to self-correct any tendency to lose synchronization with each other, and allows the system to balance pressure between the two cylinders .
(FR)
L’invention décrit un circuit de fluide (à savoir. 2, 302, 402, 502), qui comprend des premier et second cylindres (à savoir. 10, 20, 310, 320, 410, 420, 510) , doté chacun d’un piston (à savoir. 16, 26, 316, 326, 416, 426, 516) , d’une première extrémité (à savoir. 12, 22, 312, 322, 412, 422, 512) et d’une seconde extrémité (à savoir. 14, 24, 314, 324, 414, 424, 514) correspondant aux positions de course complète du piston correspondant. Les premières extrémités et les secondes extrémités des deux cylindres définissent ainsi quatre extrémités de cylindre. Les premier et second cylindres sont couplés fluidiquement l’un à l’autre via une première paire d’extrémité de cylindre appariée choisie parmi les premières ou les secondes extrémités. Le système comprend des premier et second dispositifs de déviation (à savoir. 40, 42, 342, 340, 440, 442, 540, 542) . Ceux-ci étant configurés de sorte que lorsqu’une position de course complète est occupée à une extrémité de déviation respective parmi les quatre extrémités du cylindre par le piston correspondant, le dispositif de déviation ouvre un orifice de sortie qui permet à un flux du premier cylindre respectif d’être dévié vers un conduit (à savoir. 32, 34, 332, 334, 432, 438, 532, 534) couplé à l’extrémité de déviation respective0. Ceci permet aux deux cylindres de corriger automatiquement toute tendance à se désynchroniser, et au système d’équilibrer la pression entre les deux cylindres.
Latest bibliographic data on file with the International Bureau