Control system, spray bar, carrier and method of implementation

Patent metadata

Field	Value
Publication number	US-10343180-B2
Application number	US-201515550695-A
Country	US
Kind code	B2
Filing date	Feb 17, 2015
Priority date	Feb 17, 2015
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

The present invention relates to a control system ( 20 ) provided to a spray bar ( 10 ) mounted on a carrier ( 1 ) at an angle (α 10 ) adjustable relative to the carrier ( 1 ), the control system ( 20 ) comprising an actuator for changing the angle (α 10 ) of the spray bar ( 10 ); a control device for controlling the actuator; and a damping device connected to the actuator to damp vibrations and oscillations of the spray bar ( 10 ) and thus stabilize the angle (α 10 ). The invention is characterized in that the control system ( 20 ) further comprises a recharging device operating simultaneously with the control device to compensate for a pressure change in the damping device during a change in the angle (α 10 ) of the spray bar ( 10 ). The invention also relates to a spray bar ( 10 ), a carrier ( 1 ) and a method of implementation.

First claim

The invention claimed is:

1. A control system, provided to equip a spray bar mounted on a carrier and having an adjustable angle relative to the carrier, the control system comprising:
an actuator to change the angle of the spray bar;
a control device to control the actuator;
a damping device connected to the actuator to damp vibrations and oscillations of the spray bar and thus to stabilize the angle; and
a recharging device operating simultaneously with the control device to compensate for a pressure change in the damping device during a change in the angle of the spray bar.

2. The control system according to claim 1 , wherein the modification of the angle of the spray bar results from an operator manual actuation for a tilt correction function.

3. The control system according to claim 1 , wherein the modification of the angle of the spray bar results from an automatic actuation for a tilt correction function.

4. The control system according to claim 1 , wherein the recharging device is positioned downstream from the damping device, relative to the actuator.

5. The control system according to claim 1 , wherein the actuator is a through rod double-acting cylinder comprising a hollow body, a piston moving in the hollow body, a rod secured to the piston and extending on each side of the body, and two chambers separated by the piston in the body.

6. The control system according to claim 1 , wherein the actuator is formed by two single-acting cylinders mounted in opposition and having a same cross-section.

7. A spray bar, suitable for being mounted on a carrier and having an adjustable angle, wherein the spray bar is equipped with a control system according to claim 1 .

8. A carrier equipped with a spray bar according to claim 7 .

9. A method for implementing a control system according to claim 1 , the method comprising a tilting step for modifying the angle of the spray bar, wherein in the tilting step, the control device controls the actuator while the recharging device compensates for a pressure variation in the damping device.

Assignees

• Exel Ind

Inventors

• Rouyer Sébastien
• Mick Mathieu

Classifications

• A01M7/0057

  with active regulation of the boom position · CPC title

• A01M7/0053 Primary

  Mounting of the spraybooms · CPC title

• B05B12/124 Primary

  responsive to distance between spray apparatus and target · CPC title

• B05B13/005

  mounted on vehicles or designed to apply a liquid on a very large surface, e.g. on the road, on the surface of large containers · CPC title

• F16F2222/12

  Fluid damping · CPC title