US20200396897A1 - Fluid control system - Google Patents
Fluid control system Download PDFInfo
- Publication number
- US20200396897A1 US20200396897A1 US16/978,689 US201916978689A US2020396897A1 US 20200396897 A1 US20200396897 A1 US 20200396897A1 US 201916978689 A US201916978689 A US 201916978689A US 2020396897 A1 US2020396897 A1 US 2020396897A1
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- fluid
- implement
- control system
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- 239000012530 fluid Substances 0.000 title claims abstract description 116
- 238000004891 communication Methods 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- COBRSSFPARGBIY-UHFFFAOYSA-N 6,7-dihydrodipyrido[1,2-b:1',2'-e]pyrazine-5,8-diium;1-methyl-4-(1-methylpyridin-1-ium-4-yl)pyridin-1-ium Chemical compound C1=C[N+](C)=CC=C1C1=CC=[N+](C)C=C1.C1=CC=[N+]2CC[N+]3=CC=CC=C3C2=C1 COBRSSFPARGBIY-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
- A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
- A01C7/201—Mounting of the seeding tools
- A01C7/203—Mounting of the seeding tools comprising depth regulation means
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/066—Devices for covering drills or furrows
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/066—Devices for covering drills or furrows
- A01C5/068—Furrow packing devices, e.g. press wheels
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/005—Precision agriculture
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/006—Minimum till seeding
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
- A01C7/201—Mounting of the seeding tools
- A01C7/205—Mounting of the seeding tools comprising pressure regulation means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/365—Directional control combined with flow control and pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6653—Pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Definitions
- fluid control system for supply fluid to multiple actuators associated with different implements on an agricultural planter row unit. While fluid may be supplied individually to each actuator associated with each implement on the row unit, it would be a benefit if a single fluid control system supplied fluid to multiple actuators for actuating each of the different implements on the row unit.
- FIG. 1 is a side elevation view of an embodiment of a row unit of an agricultural planter.
- FIG. 2 is a diagram of an embodiment of a system for implementing operational control of the implements on a row unit.
- FIG. 3 is a schematic illustration of an embodiment of a fluid control system for two actuators.
- FIG. 4 is a schematic illustration of an embodiment of a fluid control system for three actuators.
- FIG. 5 is a schematic illustration of an embodiment of a control valve arrangement using two valves.
- FIG. 6 is a schematic illustration of another embodiment of a fluid control system supplying fluid to a plurality of actuators.
- FIG. 7 is a schematic illustration of an embodiment of a fluid control system providing both up and down forces from a single supply of fluid.
- FIG. 8 is a schematic illustration of another embodiment of a fluid control system providing both up and down forces from a single supply of fluid.
- FIG. 9 is a perspective view of an embodiment of a retrofit actuator for a trench closing assembly.
- FIG. 10 is a side elevation view of an embodiment of an actuator for a trench closing assembly.
- FIG. 1 illustrates an embodiment of an agricultural planter row unit 200 .
- the row unit 200 is comprised of a frame 204 pivotally connected to a toolbar 202 by a parallel linkage 206 enabling each row unit 200 to move vertically independently of the toolbar 202 .
- the frame 204 operably supports one or more hoppers 208 , a seed meter 210 , a seed delivery mechanism 212 , an optional downforce control system 214 , a seed trench opening assembly 220 , a trench closing assembly 250 , an optional packer wheel assembly 260 , and an optional row cleaner assembly 270 .
- the row unit 200 shown in FIG. 1 may be for a conventional planter or the row unit 200 may be a central fill planter, in which the hoppers 208 may be replaced with one or more mini-hoppers and the frame 204 modified accordingly as would be recognized by those of skill in the art.
- the optional downforce control system 214 includes an actuator having one end operably coupled relative to the toolbar 202 and another end operably coupled to the parallel linkage to apply lift and/or downforce on the row unit 200 such as disclosed in U.S. Publication No. US2014/0090585.
- the downforce control system 214 may be referred to as a downforce implement 214 of the row unit 200 .
- the seed trench opening assembly 220 includes a pair of opening discs 222 rotatably supported by a downwardly extending shank member 205 of the frame 204 .
- the opening discs 222 are arranged to diverge outwardly and rearwardly so as to open a v-shaped trench 10 in the soil 11 as the planter traverses the field.
- the seed delivery mechanism 212 such as a seed tube or seed conveyor, is positioned between the opening discs 222 to deliver seed from the seed meter 210 into the opened seed trench 10 .
- the depth of the seed trench 10 is controlled by a pair of gauge wheels 224 positioned adjacent to the opening discs 222 .
- the gauge wheels 224 are rotatably supported by gauge wheel arms 226 which are pivotally secured at one end to the frame 204 about pivot pin 228 .
- a rocker arm 230 is pivotally supported on the frame 204 by a pivot pin 232 . It should be appreciated that rotation of the rocker arm 230 about the pivot pin 232 sets the depth of the trench 10 by limiting the upward travel of the gauge wheel arms 226 (and thus the gauge wheels) relative to the opening discs 222 .
- the rocker arm 230 may be adjustably positioned via a linear actuator 234 mounted to the row unit frame 204 and pivotally coupled to an upper end of the rocker arm 230 .
- the linear actuator 234 may be controlled remotely or automatically actuated as disclosed, for example, in International Publication No. WO2014/186810.
- the adjustably positional rocker arm 230 may be referred to as a depth adjustment implement 230 of the row unit 200 .
- An optional downforce sensor 238 is configured to generate a signal related to the amount of force imposed by the gauge wheels 224 on the soil.
- the pivot pin 232 for the rocker arm 230 may comprise the downforce sensor 238 , such as the instrumented pins disclosed in U.S. Pat. No. 8,561,472.
- An optional seed meter 210 may be any commercially available seed meter, such as a finger-type meter or vacuum seed meter.
- An exemplary embodiment of one type of vacuum seed meter is the VSet® meter, available from Precision Planting LLC, 23207 Townline Rd, Tremont, Ill. 61568.
- the seed trench closing assembly 250 includes a frame member 251 that is pivotally attached at its forward end to the row unit frame 204 by a pivot 253 .
- the frame member 251 rotatably supports a pair of closing wheels 254 which are disposed on opposing sides of the open seed trench 10 .
- the closing wheels 254 are supported from the frame member 251 at an angle with respect to the forward direction of travel of the row unit 200 indicated by arrow 201 to push the soil inwardly from each side of the open seed trench to close the open seed trench with soil covering the seed previously deposited in the seed trench.
- An actuator 256 is supported at one end from the row unit frame 200 and is connected at the other end to the frame member 251 to vary the amount of downforce applied to the closing assembly 250 .
- the seed trench closing assembly 250 may be referred to as a trench closing implement 250 of the row unit 200 .
- An optional packer wheel assembly 260 comprises an arm 262 pivotally attached to the row unit fame 204 and extends rearward of the closing wheel assembly 250 and in alignment therewith.
- the arm 262 rotatably supports a packer wheel 264 .
- An actuator 266 is pivotally attached at one end to the arm 262 and at its other end to the row unit frame 204 to vary the amount of downforce exerted by the packer wheel 264 to pack the soil over the seed trench 10 .
- the packer wheel assembly 260 may be referred to as a packer wheel implement 260 of the row unit 200 .
- An optional row cleaner assembly 270 may be the CleanSweep® system available from Precision Planting LLC, 23207 Townline Rd, Tremont, Ill. 61568.
- the row cleaner assembly 270 includes an arm 272 pivotally attached to the forward end of the row unit frame 204 and aligned with the trench opening assembly 220 .
- a pair of row cleaner wheels 274 are rotatably attached to the forward end of the arm 272 .
- An actuator 276 is pivotally attached at one end to the arm 272 and at its other end to the row unit frame 204 to adjust the downforce on the arm to vary the aggressiveness of the action of the row cleaning wheels 274 depending on the amount of crop residue and soil conditions.
- the row cleaner assembly 270 may be referred to as a row cleaner implement 270 of the row unit 200 .
- a monitor 300 is visible to an operator within the cab of a tractor pulling the planter.
- the monitor 300 may be in signal communication with a GPS unit 310 , the trench closing assembly actuator 256 and the optional packer wheel assembly actuator 266 to enable operational control of the trench closing assembly 250 and the optional packer wheel assembly 260 based on the signals generated by trench closing sensors 1000 such as those described in International Publication No. WO2017/197274. Also as discussed later, the monitor 300 may be programmed to display operational recommendations based on the signals generated by the trench closing sensors 1000 .
- the monitor 300 may also be in signal communication with the row cleaner actuator 276 , the downforce control system 214 , the depth adjustment actuator 234 so as to enable operational control of the row cleaner assembly 270 , the downforce control system 214 , and the trench opening assembly 230 , respectively.
- fluids includes gases or liquids.
- fluids include, but are not limited to, air and hydraulic fluid.
- FIG. 3 Illustrated in FIG. 3 is an embodiment of a fluid control system 8100 wherein a common supply of fluid is used to supply fluid for actuation of multiple actuators associated with two or more implements on each row unit 200 .
- fluid flow to and from a first actuator 8110 and a second actuator 8120 is controlled by fluid control system 8100 .
- the first actuator 8110 may be actuator 256
- the second actuator 8120 may be actuator 266 of the row unit 200 of FIG. 1 .
- the fluid control system 8100 includes an inlet valve 8101 , an outlet valve 8102 , and a first control valve 8103 .
- Inlet valve 8101 and outlet valve 8102 may be solenoid valves.
- the first control valve 8103 may be a multichannel valve that allows flow to one or both of the first actuator 8110 and the second actuator 8120 . If additional fluid is needed for the second actuator 8120 to increase the force applied, outlet valve 8102 is closed, inlet valve 8101 is open, and first control valve 8103 is operated to provide fluid communication from line 8105 to line 8106 and to close communication to line 8107 . If fluid needs to be removed from first actuator 8110 to decrease the force applied, outlet valve 8102 is open, inlet valve 8101 is closed, and first control valve 8103 is operated to provide fluid communication from line 8107 to line 8105 and to close fluid communication to line 8106 . After flowing through outlet valve 8102 , the fluid can be returned to a source (not shown) or vented to atmosphere (for gases).
- a first pressure sensor 8201 is connected to line 8107 .
- first control valve 8103 is closed to line 8107 .
- second pressure sensor 8202 is connected to line 8106 .
- first control valve 8103 is closed to line 8106 , the pressure in the second actuator 8120 can be measured.
- FIG. 4 illustrates an embodiment of another fluid control system 8200 similar to the previously described fluid control system 8100 , but is expanded to include a second control valve 8104 , a third actuator 8130 , a third pressure sensor 8203 , and lines 8108 and 8109 .
- inlet valve 8101 is open
- outlet valve 8102 is closed
- the first control valve 8103 is operated to provide fluid communication from line 8105 to line 8106 and to close fluid communication to line 8107
- the second control valve is operated to provide fluid communication from line 8106 to line 8108 and to close fluid communication to line 8109 .
- additional control valves, actuators, and pressure sensors can be added in series to the embodiment of control system 8200 .
- the first actuator 8110 may be actuator 256
- the second actuator 8120 may be actuator 266
- the third actuator 8130 may be actuator 276 of the row unit 200 of FIG. 1 .
- any of the first actuator 8110 , second actuator 8120 , or third actuator 8130 do not need to be on separate implements.
- an implement such as trench closing assembly 250
- any of the control valves 8103 , 8104 may be replaced by two single acting valves 8193 and 8194 .
- the valve 8193 is closed, and valve 8194 is open.
- FIG. 6 Illustrated in FIG. 6 is another embodiment of a fluid control system 8300 capable of providing fluid to multiple actuators 8110 , 8120 , and 8130 .
- pressure sensor 8201 measures the pressure in line 8105 , which supplies fluid to each actuator 8110 , 8120 , and 8130 . While shown with three actuators, it should be appreciated that there can be two to any desired number of actuators. Such an embodiment could be used, for example, to provide section control of a planter with all actuators across multiple row units within the planter section being controlled to the same pressure.
- a single fluid supply supplies fluid to an actuator 8410 comprising a cylinder 8412 having a movable piston 8413 connected to a piston rod 8414 .
- the piston 8413 separates the cylinder 8412 between a down-chamber 8415 and an up-chamber 8416 .
- a first inlet valve 8417 disposed along inlet line 8418 controls fluid entering the fluid control system 8400 .
- a down-chamber valve 8418 disposed at the down-chamber end of the cylinder 8412 is opened and a line valve 8419 downstream of the down chamber valve 8418 is closed.
- Pressure in the down-chamber 8415 is measured by first pressure sensor 8201 when down-chamber valve 8418 is open, line valve 8419 is closed, and inlet valve 8417 is closed.
- down-chamber valve 8418 is open
- inlet valve 8417 is closed
- line valve 8419 is open to line 8421
- an up-chamber valve 8422 disposed at the up-chamber end of the cylinder 8412 is closed
- a control valve 8423 downstream of the line valve 8419 and upstream of the up-chamber valve 8422 is open to line 8424 and is closed to line 8425
- outlet valve 8426 is open such that the fluid is able to flow through line 8424 to atmosphere (for gases) or is returned to the fluid source (not shown).
- inlet valve 8417 is open, down-chamber valve 8418 is closed, line valve 8419 is open, up-chamber valve 8422 is open, and control valve 8423 is open from line 8421 to line 8425 .
- line valve 8419 is closed, up-chamber valve 8422 is open, control valve 8423 is open from line 8425 to line 8424 , and outlet valve 8426 is open such that the fluid is able to flow from line 8425 through line 8424 to atmosphere (for gases) or is returned to the fluid source (not shown).
- line valve 8419 is closed, up-chamber valve 8422 is open, and control valve 8423 is closed to lines 8421 and 8424 .
- FIG. 8 illustrates a fluid control system 8400 A having an arrangement similar to that of the fluid control system 8400 of FIG. 7 , except that in the fluid control system 8400 A, the control valve 8423 is eliminated.
- the operation of the fluid control system 8400 A is substantially the same as in the fluid control system 8400 , except that the outlet valve 8426 in cooperation with line valve 8419 will open and close as needed to control the flow of fluid between lines 8424 and 8425 .
- the outlet valve 8426 may be a duck-bill valve, for venting gas to atmosphere and to prevent dirt from entering line 8424 .
- the outlet valve 8426 may be a solenoid valve, for venting gas to atmosphere or for returning the fluid to the fluid source.
- Each of the valves described herein e.g., 8101 , 8102 , 8103 , 8104 , 8193 , 8194 , 8417 , 8418 , 8419 , 8422 , 8423 , 8426
- the pressure sensors e.g., 8201 , 8202 , 8203
- monitor 300 to control the opening and closing of the valves and to measure the pressure.
- Valves 8101 , 8102 , 8103 , 8104 , 8193 , 8194 , 8417 , 8418 , 8419 , 8422 , 8423 , 8426 may be solenoid valves.
- Any actuator described herein can be any actuator that can apply a force.
- actuators include, but are not limited to, pneumatic actuators, hydraulic actuators, electro-mechanical actuators, and electro-hydraulic actuators.
- FIG. 9 illustrates an embodiment of a retrofit downforce system 9000 for a trench closing assembly 250 .
- the downforce system 9000 includes a bracket 9010 and an actuator 9020 disposed on the trench closing assembly 250 itself.
- the bracket 9010 has a base 9011 that is disposed between a mounting bracket 252 on the closing frame member 251 of the closing assembly 250 and the row unit frame 204 (not shown in FIG. 9 ).
- the bracket 9010 is secured between the row unit frame 204 and the mounting bracket 252 .
- an arm 9012 Disposed upward from the base 9011 is an arm 9012 .
- a plate 9013 Disposed at the other end of the arm 9012 , opposite the base 9011 is a plate 9013 .
- the actuator 9020 is disposed between the plate 9013 and the trench closing frame 251 .
- the actuation of the actuator 90200 causing it to extend or retract applies a force on the closing frame member 251 causing the frame member 251 to pivot about the pivot 253 .
- An example of the actuator 9020 is the actuator identified by reference number 200 in U.S. Pat. No. 8,550,020, which can be controlled by the control system 100 .
- FIG. 10 Illustrated in FIG. 10 is another embodiment of a downforce system 9100 .
- the downforce system 9100 includes a bracket 9110 and an actuator 9040 disposed on the trench closing assembly 250 itself.
- the actuator 9040 may be used in place of such a spring. Accordingly, it should be understood that reference to the actuator 9040 is used interchangeably with the trench closing assembly actuator 256 illustrated in FIG. 1 and described above, and therefore all references to the actuator 256 in this disclosure should be understood to include the actuator 9040 .
- the downforce system 9100 includes a bracket 9110 attached to and extending downwardly from the mounting bracket 252 of the trench closing assembly 250 .
- the actuator 9040 is connected at one end to bracket 9110 and at its other end to the closing frame member 251 .
- the actuation of the actuator 9040 causing it to extend or retract causes the closing frame member 251 to pivot about the pivot 253 .
- An example of the actuator 9040 is the actuator identified by reference number 200 in U.S. Pat. No. 8,550,020, which can be controlled by control system 100 .
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
A fluid control system for supplying fluid to multiple actuators associated with different implements disposed on an agricultural planter row unit. A first one of the multiple actuators is associated with a first implement disposed on the agricultural planter row unit. A second one of the multiple actuators is associated with a second implement disposed on the agricultural planter row unit. The fluid control system controls fluid flow from a fluid source to each of the first and second actuators. In one embodiment, the fluid control system includes an inlet valve, an outlet valve and a pressure sensor, wherein the inlet valve is in fluid communication with the fluid source and the pressure sensor is disposed to measure fluid pressure in a fluid line in fluid communication with the inlet valve and each of the first and second actuators.
Description
- This application claims the benefit of U.S. Provisional Application No. 62/640,252 filed Mar. 8, 2018 which is incorporated herein in its entirety by reference.
- There is a need for a fluid control system for supply fluid to multiple actuators associated with different implements on an agricultural planter row unit. While fluid may be supplied individually to each actuator associated with each implement on the row unit, it would be a benefit if a single fluid control system supplied fluid to multiple actuators for actuating each of the different implements on the row unit.
-
FIG. 1 is a side elevation view of an embodiment of a row unit of an agricultural planter. -
FIG. 2 is a diagram of an embodiment of a system for implementing operational control of the implements on a row unit. -
FIG. 3 is a schematic illustration of an embodiment of a fluid control system for two actuators. -
FIG. 4 is a schematic illustration of an embodiment of a fluid control system for three actuators. -
FIG. 5 is a schematic illustration of an embodiment of a control valve arrangement using two valves. -
FIG. 6 is a schematic illustration of another embodiment of a fluid control system supplying fluid to a plurality of actuators. -
FIG. 7 is a schematic illustration of an embodiment of a fluid control system providing both up and down forces from a single supply of fluid. -
FIG. 8 is a schematic illustration of another embodiment of a fluid control system providing both up and down forces from a single supply of fluid. -
FIG. 9 is a perspective view of an embodiment of a retrofit actuator for a trench closing assembly. -
FIG. 10 is a side elevation view of an embodiment of an actuator for a trench closing assembly. - All references to patents and patent publications cited herein are incorporated herein in their entireties. If there is a discrepancy or conflict between definitions or descriptions of elements of any patents or printed publications incorporated by reference with definitions or descriptions of elements referred to in this specification, the definitions or descriptions expressly set forth in this specification shall control.
- Referring now to the drawings, wherein like reference numerals designate identical or corresponding parts throughout the several views,
FIG. 1 illustrates an embodiment of an agriculturalplanter row unit 200. Therow unit 200 is comprised of aframe 204 pivotally connected to atoolbar 202 by aparallel linkage 206 enabling eachrow unit 200 to move vertically independently of thetoolbar 202. Theframe 204 operably supports one ormore hoppers 208, aseed meter 210, aseed delivery mechanism 212, an optionaldownforce control system 214, a seedtrench opening assembly 220, atrench closing assembly 250, an optionalpacker wheel assembly 260, and an optionalrow cleaner assembly 270. It should be understood that therow unit 200 shown inFIG. 1 may be for a conventional planter or therow unit 200 may be a central fill planter, in which thehoppers 208 may be replaced with one or more mini-hoppers and theframe 204 modified accordingly as would be recognized by those of skill in the art. - The optional
downforce control system 214 includes an actuator having one end operably coupled relative to thetoolbar 202 and another end operably coupled to the parallel linkage to apply lift and/or downforce on therow unit 200 such as disclosed in U.S. Publication No. US2014/0090585. Thedownforce control system 214 may be referred to as a downforce implement 214 of therow unit 200. - The seed
trench opening assembly 220 includes a pair ofopening discs 222 rotatably supported by a downwardly extendingshank member 205 of theframe 204. Theopening discs 222 are arranged to diverge outwardly and rearwardly so as to open a v-shaped trench 10 in thesoil 11 as the planter traverses the field. Theseed delivery mechanism 212, such as a seed tube or seed conveyor, is positioned between theopening discs 222 to deliver seed from theseed meter 210 into the openedseed trench 10. The depth of theseed trench 10 is controlled by a pair ofgauge wheels 224 positioned adjacent to theopening discs 222. Thegauge wheels 224 are rotatably supported bygauge wheel arms 226 which are pivotally secured at one end to theframe 204 aboutpivot pin 228. Arocker arm 230 is pivotally supported on theframe 204 by apivot pin 232. It should be appreciated that rotation of therocker arm 230 about thepivot pin 232 sets the depth of thetrench 10 by limiting the upward travel of the gauge wheel arms 226 (and thus the gauge wheels) relative to theopening discs 222. Therocker arm 230 may be adjustably positioned via alinear actuator 234 mounted to therow unit frame 204 and pivotally coupled to an upper end of therocker arm 230. Thelinear actuator 234 may be controlled remotely or automatically actuated as disclosed, for example, in International Publication No. WO2014/186810. The adjustablypositional rocker arm 230 may be referred to as a depth adjustment implement 230 of therow unit 200. - An
optional downforce sensor 238 is configured to generate a signal related to the amount of force imposed by thegauge wheels 224 on the soil. In some embodiments, thepivot pin 232 for therocker arm 230 may comprise thedownforce sensor 238, such as the instrumented pins disclosed in U.S. Pat. No. 8,561,472. - An
optional seed meter 210 may be any commercially available seed meter, such as a finger-type meter or vacuum seed meter. An exemplary embodiment of one type of vacuum seed meter is the VSet® meter, available from Precision Planting LLC, 23207 Townline Rd, Tremont, Ill. 61568. - The seed
trench closing assembly 250 includes aframe member 251 that is pivotally attached at its forward end to therow unit frame 204 by apivot 253. Theframe member 251 rotatably supports a pair ofclosing wheels 254 which are disposed on opposing sides of theopen seed trench 10. Theclosing wheels 254 are supported from theframe member 251 at an angle with respect to the forward direction of travel of therow unit 200 indicated byarrow 201 to push the soil inwardly from each side of the open seed trench to close the open seed trench with soil covering the seed previously deposited in the seed trench. Anactuator 256 is supported at one end from therow unit frame 200 and is connected at the other end to theframe member 251 to vary the amount of downforce applied to theclosing assembly 250. The seedtrench closing assembly 250 may be referred to as a trench closing implement 250 of therow unit 200. - An optional
packer wheel assembly 260 comprises anarm 262 pivotally attached to therow unit fame 204 and extends rearward of theclosing wheel assembly 250 and in alignment therewith. Thearm 262 rotatably supports apacker wheel 264. Anactuator 266 is pivotally attached at one end to thearm 262 and at its other end to therow unit frame 204 to vary the amount of downforce exerted by thepacker wheel 264 to pack the soil over theseed trench 10. Thepacker wheel assembly 260 may be referred to as a packer wheel implement 260 of therow unit 200. - An optional
row cleaner assembly 270 may be the CleanSweep® system available from Precision Planting LLC, 23207 Townline Rd, Tremont, Ill. 61568. Therow cleaner assembly 270 includes anarm 272 pivotally attached to the forward end of therow unit frame 204 and aligned with thetrench opening assembly 220. A pair ofrow cleaner wheels 274 are rotatably attached to the forward end of thearm 272. Anactuator 276 is pivotally attached at one end to thearm 272 and at its other end to therow unit frame 204 to adjust the downforce on the arm to vary the aggressiveness of the action of therow cleaning wheels 274 depending on the amount of crop residue and soil conditions. Therow cleaner assembly 270 may be referred to as a row cleaner implement 270 of therow unit 200. - Referring to
FIG. 2 , amonitor 300 is visible to an operator within the cab of a tractor pulling the planter. Themonitor 300 may be in signal communication with aGPS unit 310, the trenchclosing assembly actuator 256 and the optional packerwheel assembly actuator 266 to enable operational control of thetrench closing assembly 250 and the optionalpacker wheel assembly 260 based on the signals generated bytrench closing sensors 1000 such as those described in International Publication No. WO2017/197274. Also as discussed later, themonitor 300 may be programmed to display operational recommendations based on the signals generated by thetrench closing sensors 1000. Themonitor 300 may also be in signal communication with therow cleaner actuator 276, thedownforce control system 214, thedepth adjustment actuator 234 so as to enable operational control of therow cleaner assembly 270, thedownforce control system 214, and thetrench opening assembly 230, respectively. - As used herein, the term fluids includes gases or liquids. Examples of fluids include, but are not limited to, air and hydraulic fluid.
- Illustrated in
FIG. 3 is an embodiment of afluid control system 8100 wherein a common supply of fluid is used to supply fluid for actuation of multiple actuators associated with two or more implements on eachrow unit 200. In this embodiment, fluid flow to and from afirst actuator 8110 and asecond actuator 8120 is controlled byfluid control system 8100. In one example of the embodiment of thefluid control system 8100, thefirst actuator 8110 may be actuator 256, and thesecond actuator 8120 may be actuator 266 of therow unit 200 ofFIG. 1 . Thefluid control system 8100 includes aninlet valve 8101, anoutlet valve 8102, and afirst control valve 8103.Inlet valve 8101 andoutlet valve 8102 may be solenoid valves. Thefirst control valve 8103 may be a multichannel valve that allows flow to one or both of thefirst actuator 8110 and thesecond actuator 8120. If additional fluid is needed for thesecond actuator 8120 to increase the force applied,outlet valve 8102 is closed,inlet valve 8101 is open, andfirst control valve 8103 is operated to provide fluid communication fromline 8105 toline 8106 and to close communication toline 8107. If fluid needs to be removed fromfirst actuator 8110 to decrease the force applied,outlet valve 8102 is open,inlet valve 8101 is closed, andfirst control valve 8103 is operated to provide fluid communication fromline 8107 toline 8105 and to close fluid communication toline 8106. After flowing throughoutlet valve 8102, the fluid can be returned to a source (not shown) or vented to atmosphere (for gases). To measure the amount of pressure applied to thefirst actuator 8110, afirst pressure sensor 8201 is connected toline 8107. Whenfirst control valve 8103 is closed toline 8107, the pressure in thefirst actuator 8110 can be measured. To measure the amount of pressure applied to thesecond actuator 8120, asecond pressure sensor 8202 is connected toline 8106. Whenfirst control valve 8103 is closed toline 8106, the pressure in thesecond actuator 8120 can be measured. -
FIG. 4 illustrates an embodiment of anotherfluid control system 8200 similar to the previously describedfluid control system 8100, but is expanded to include asecond control valve 8104, athird actuator 8130, athird pressure sensor 8203, andlines third actuator 8130,inlet valve 8101 is open,outlet valve 8102 is closed, thefirst control valve 8103 is operated to provide fluid communication fromline 8105 toline 8106 and to close fluid communication toline 8107, and the second control valve is operated to provide fluid communication fromline 8106 toline 8108 and to close fluid communication toline 8109. To expand the system (not shown), additional control valves, actuators, and pressure sensors can be added in series to the embodiment ofcontrol system 8200. In one example of the embodiment of thefluid control system 8200, thefirst actuator 8110 may be actuator 256, thesecond actuator 8120 may be actuator 266, and thethird actuator 8130 may be actuator 276 of therow unit 200 ofFIG. 1 . - In another embodiment, any of the
first actuator 8110,second actuator 8120, orthird actuator 8130 do not need to be on separate implements. For example, an implement, such astrench closing assembly 250, may have both an up actuator and a down actuator (not shown), and the embodiment of thefluid control system 8200 may control both the up and down actuators of that single implement 250. - As illustrated in
FIG. 5 , in another embodiment applicable to either the first or secondfluid control systems control valves single acting valves first actuator 8110, for example, thevalve 8193 is closed, andvalve 8194 is open. - Illustrated in
FIG. 6 is another embodiment of afluid control system 8300 capable of providing fluid tomultiple actuators pressure sensor 8201 measures the pressure inline 8105, which supplies fluid to eachactuator - In another embodiment of a
fluid control system 8400 illustrated inFIG. 7 , a single fluid supply supplies fluid to anactuator 8410 comprising acylinder 8412 having amovable piston 8413 connected to apiston rod 8414. Thepiston 8413 separates thecylinder 8412 between a down-chamber 8415 and an up-chamber 8416. Afirst inlet valve 8417 disposed alonginlet line 8418 controls fluid entering thefluid control system 8400. To add fluid to thedown chamber 8415, a down-chamber valve 8418 disposed at the down-chamber end of thecylinder 8412 is opened and aline valve 8419 downstream of thedown chamber valve 8418 is closed. Pressure in the down-chamber 8415 is measured byfirst pressure sensor 8201 when down-chamber valve 8418 is open,line valve 8419 is closed, andinlet valve 8417 is closed. To remove fluid from downchamber 8415, down-chamber valve 8418 is open,inlet valve 8417 is closed,line valve 8419 is open toline 8421, an up-chamber valve 8422 disposed at the up-chamber end of thecylinder 8412 is closed, acontrol valve 8423 downstream of theline valve 8419 and upstream of the up-chamber valve 8422 is open toline 8424 and is closed toline 8425, andoutlet valve 8426 is open such that the fluid is able to flow throughline 8424 to atmosphere (for gases) or is returned to the fluid source (not shown). To add fluid to up-chamber 8416,inlet valve 8417 is open, down-chamber valve 8418 is closed,line valve 8419 is open, up-chamber valve 8422 is open, andcontrol valve 8423 is open fromline 8421 toline 8425. To remove fluid from up-chamber 8416,line valve 8419 is closed, up-chamber valve 8422 is open,control valve 8423 is open fromline 8425 toline 8424, andoutlet valve 8426 is open such that the fluid is able to flow fromline 8425 throughline 8424 to atmosphere (for gases) or is returned to the fluid source (not shown). To measure pressure in up-chamber 8416 withpressure sensor 8202,line valve 8419 is closed, up-chamber valve 8422 is open, andcontrol valve 8423 is closed tolines -
FIG. 8 illustrates afluid control system 8400A having an arrangement similar to that of thefluid control system 8400 ofFIG. 7 , except that in thefluid control system 8400A, thecontrol valve 8423 is eliminated. Thus, the operation of thefluid control system 8400A is substantially the same as in thefluid control system 8400, except that theoutlet valve 8426 in cooperation withline valve 8419 will open and close as needed to control the flow of fluid betweenlines - In
FIGS. 7 and 8 , theoutlet valve 8426 may be a duck-bill valve, for venting gas to atmosphere and to prevent dirt from enteringline 8424. Alternatively, theoutlet valve 8426 may be a solenoid valve, for venting gas to atmosphere or for returning the fluid to the fluid source. - Each of the valves described herein (e.g., 8101, 8102, 8103, 8104, 8193, 8194, 8417, 8418, 8419, 8422, 8423, 8426) and the pressure sensors (e.g., 8201, 8202, 8203) are in signal communication with
monitor 300 to control the opening and closing of the valves and to measure the pressure. Alternatively, there can be a separate control with a single row network, which is described in International Publication WO2014/018717 to which the valves and pressure sensors are connected.Valves - Any actuator described herein can be any actuator that can apply a force. Examples of actuators include, but are not limited to, pneumatic actuators, hydraulic actuators, electro-mechanical actuators, and electro-hydraulic actuators.
-
FIG. 9 illustrates an embodiment of aretrofit downforce system 9000 for atrench closing assembly 250. In this embodiment, rather than thetrench closing actuator 256 being secured at one end to therow unit frame 204 as illustrated inFIG. 1 and described above, thedownforce system 9000 includes abracket 9010 and anactuator 9020 disposed on thetrench closing assembly 250 itself. It should be understood that reference to theactuator 9020 is used interchangeably with the trenchclosing assembly actuator 256 illustrated inFIG. 1 and described above, and therefore all references to theactuator 256 in this disclosure should be understood to include theactuator 9020. Thebracket 9010 has a base 9011 that is disposed between a mountingbracket 252 on theclosing frame member 251 of theclosing assembly 250 and the row unit frame 204 (not shown inFIG. 9 ). In one embodiment, when thetrench closing assembly 250 is attached to therow unit frame 204, thebracket 9010 is secured between therow unit frame 204 and the mountingbracket 252. Disposed upward from thebase 9011 is anarm 9012. Disposed at the other end of thearm 9012, opposite thebase 9011 is aplate 9013. Theactuator 9020 is disposed between theplate 9013 and thetrench closing frame 251. The actuation of the actuator 90200 causing it to extend or retract applies a force on theclosing frame member 251 causing theframe member 251 to pivot about thepivot 253. An example of theactuator 9020 is the actuator identified byreference number 200 in U.S. Pat. No. 8,550,020, which can be controlled by the control system 100. - Illustrated in
FIG. 10 is another embodiment of adownforce system 9100. Again, in this embodiment, rather than thetrench closing actuator 256 being secured at one end to therow unit frame 204 as illustrated inFIG. 1 and described above, thedownforce system 9100 includes abracket 9110 and anactuator 9040 disposed on thetrench closing assembly 250 itself. It should also be appreciated that in conventional trench closing assemblies which utilize a spring to apply downforce to the trench closing assembly, theactuator 9040 may be used in place of such a spring. Accordingly, it should be understood that reference to theactuator 9040 is used interchangeably with the trenchclosing assembly actuator 256 illustrated inFIG. 1 and described above, and therefore all references to theactuator 256 in this disclosure should be understood to include theactuator 9040. In this embodiment, thedownforce system 9100 includes abracket 9110 attached to and extending downwardly from the mountingbracket 252 of thetrench closing assembly 250. Theactuator 9040 is connected at one end tobracket 9110 and at its other end to theclosing frame member 251. The actuation of theactuator 9040 causing it to extend or retract causes theclosing frame member 251 to pivot about thepivot 253. An example of theactuator 9040 is the actuator identified byreference number 200 in U.S. Pat. No. 8,550,020, which can be controlled by control system 100. - Various modifications to the embodiments and the general principles and features of the apparatus, systems and methods described herein will be readily apparent to those of skill in the art. Thus, the appended claims should not be limited to the embodiments of the apparatus, systems and methods described herein and illustrated in the accompanying drawing figures, but should be accorded the widest scope consistent with the foregoing disclosure.
Claims (10)
1. A fluid control system for supplying fluid to multiple actuators associated with different implements disposed on an agricultural planter row unit, comprising:
a first actuator associated with a first implement disposed on the agricultural planter row unit;
a second actuator associated with a second implement disposed on the agricultural planter row unit, the second implement being different from the first implement;
a fluid control system for controlling fluid flow from a fluid source to each of the first and second actuators, the fluid control system including:
an inlet valve in fluid communication with the fluid source;
an outlet valve; and
a first pressure sensor disposed to measure fluid pressure in a first fluid line in fluid communication with the inlet valve and each of the first and second actuators.
2. The fluid control system of claim 1 , wherein the fluid control system further comprises:
a first control valve disposed in the first fluid line between the inlet valve and the first pressure sensor.
3. The fluid control system of claim 2 , wherein the fluid control system further comprises:
a second pressure sensor disposed to measure fluid pressure in a second fluid line in fluid communication with the first control valve and the second actuator.
4. The fluid control system of claim 3 , wherein the fluid control system further comprises:
a second control valve disposed in the second fluid line between the first control valve and the second pressure sensor.
5. The fluid control system of claim 1 , further comprising
a third actuator associated with a third implement disposed on the agricultural planter row unit, the third implement being different from the first implement and second implement; and
wherein the first pressure sensor is disposed to measure fluid pressure in the first fluid line in fluid communication with the inlet valve and each of the first, second and third actuators.
6. The fluid control system of claim 5 , wherein the fluid control system further comprises:
a first control valve disposed in the first fluid line between the inlet valve and the first pressure sensor;
a second control valve disposed in a second fluid line between the first control valve and the second actuator;
a second pressure sensor disposed in the second fluid line between the second control valve and the second actuator;
a third pressure sensor disposed to measure fluid pressure in a third fluid line in fluid communication with the second control valve and the third actuator.
7. The fluid control system of any of claims 1 to 4 , wherein the first and second implements are selected from the group consisting of: (i) a trench closing implement; (ii) a packer wheel implement; (iii) a row cleaner implement; (iv) a depth adjustment implement; and (v) a downforce implement.
8. The fluid control system of any of claims 5 to 6 , wherein the first, second and third implements are selected from the group consisting of: (i) a trench closing implement; (ii) a packer wheel implement; (iii) a row cleaner implement; (iv) a depth adjustment implement; and (v) a downforce implement.
9. The fluid control system of claims 1 and 5 , wherein each of the actuators comprise a cylinder having a movable piston connected to a piston rod, the piston separating the cylinder between a down-chamber and an up-chamber; and
wherein the fluid control system further comprises a down-chamber valve disposed at the down-chamber end of the cylinder and an up-chamber valve disposed at the up-chamber end of the cylinder.
10. The fluid control system of any of claims 1 to 9 , wherein the first implement comprises a trench closing implement, the trench closing implement comprising:
a mounting bracket rigidly secured to a frame member of the row unit;
a closing frame member pivotally coupled to the mounting bracket about a pivot axis;
a bracket member having a first end secured to the mounting bracket; and
wherein the first actuator is coupled at a first end to the bracket member and a second end of the first actuator is coupled to the closing frame member, whereby actuation of the first actuator causes said closing frame member to pivot with respect to said mounting bracket about the pivot axis.
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210144910A1 (en) * | 2012-10-24 | 2021-05-20 | Precision Planting Llc | Agricultural trench closing systems, methods, and apparatus |
US11337363B2 (en) * | 2018-09-28 | 2022-05-24 | Cnh Industrial America Llc | Calibrating a depth control system of a row unit in an agricultural planter |
US11483963B2 (en) | 2019-12-24 | 2022-11-01 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11490558B2 (en) | 2019-12-24 | 2022-11-08 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11516958B2 (en) | 2019-12-24 | 2022-12-06 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11523556B2 (en) | 2019-12-24 | 2022-12-13 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11523555B2 (en) | 2019-12-24 | 2022-12-13 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11553639B2 (en) | 2019-12-24 | 2023-01-17 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11553638B2 (en) | 2019-12-24 | 2023-01-17 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11564344B2 (en) | 2019-12-24 | 2023-01-31 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11564346B2 (en) | 2019-12-24 | 2023-01-31 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11582899B2 (en) | 2019-12-24 | 2023-02-21 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11589500B2 (en) | 2019-12-24 | 2023-02-28 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11596095B2 (en) | 2019-12-24 | 2023-03-07 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE2250841A1 (en) * | 2022-07-04 | 2024-01-05 | Vaederstad Holding Ab | Row cleaner, agricultural implement and method of operating agricultural implement |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120067432A1 (en) * | 2009-05-29 | 2012-03-22 | Volvo Construction Equipment Ab | hydraulic system and a working machine comprising such a hydraulic system |
US8448717B2 (en) * | 2010-08-30 | 2013-05-28 | Cnh America Llc | Manual backup system for controlling fluid flow to cylinders within an agricultural implement |
US9144189B2 (en) * | 2012-07-25 | 2015-09-29 | Precision Planting Llc | Integrated implement downforce control systems, methods, and apparatus |
US20170108015A1 (en) * | 2015-10-20 | 2017-04-20 | Caterpillar Inc. | Independent Metering Valves with Flow Sharing |
US20170251587A1 (en) * | 2016-03-02 | 2017-09-07 | Deere & Company | Automated leveling and depth control system of a work machine and method thereof |
US11612093B2 (en) * | 2016-02-19 | 2023-03-28 | Precision Planting, Llc | Agricultural trench depth systems, methods, and apparatus |
US11644098B2 (en) * | 2015-12-07 | 2023-05-09 | Kubota Corporation | Hydraulic system of work machine and work machine |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9503854D0 (en) | 1995-02-25 | 1995-04-19 | Ultra Hydraulics Ltd | Electrohydraulic proportional control valve assemblies |
US6701857B1 (en) * | 2003-01-16 | 2004-03-09 | Lynn David Jensen | Depth control device for planting implement |
DE10330869A1 (en) * | 2003-07-09 | 2005-02-17 | Hydac System Gmbh | Hydraulic system |
DE10340504B4 (en) | 2003-09-03 | 2006-08-24 | Sauer-Danfoss Aps | Valve arrangement for controlling a hydraulic drive |
DE10344480B3 (en) * | 2003-09-24 | 2005-06-16 | Sauer-Danfoss Aps | Hydraulic valve arrangement |
DE102006057782B4 (en) * | 2006-12-06 | 2016-03-31 | Holmer Maschinenbau Gmbh | Device for clearing or harvesting root crops |
US8561472B2 (en) | 2007-01-08 | 2013-10-22 | Precision Planting Llc | Load sensing pin |
US20120046160A1 (en) * | 2010-08-19 | 2012-02-23 | Mark Crocker | Conversion of triglycerides to hydrocarbons by means of a mixed oxide catalyst |
US9107338B2 (en) * | 2010-09-15 | 2015-08-18 | Dawn Equipment Company | Agricultural systems |
US9232687B2 (en) * | 2010-09-15 | 2016-01-12 | Dawn Equipment Company | Agricultural systems |
US8550020B2 (en) | 2010-12-16 | 2013-10-08 | Precision Planting Llc | Variable pressure control system for dual acting actuators |
EP2713689B2 (en) | 2011-06-03 | 2023-10-11 | Precision Planting LLC | Agricultural row unit apparatus, systems, and methods |
UA110988C2 (en) * | 2011-08-05 | 2016-03-10 | Пресіжн Плентінг Елелсі | Apparatus, systems and methods for controlling the downforce of an agricultural implement having multiple row units |
US20130126023A1 (en) | 2011-11-22 | 2013-05-23 | Tam C. Huynh | Hydraulic system with energy regeneration |
JP5860711B2 (en) * | 2012-02-03 | 2016-02-16 | Kyb株式会社 | Fluid pressure control device |
ES2903049T3 (en) | 2012-07-25 | 2022-03-30 | Prec Planting Llc | System and method for control and monitoring of multiple row agricultural implements |
WO2014186810A1 (en) | 2013-05-17 | 2014-11-20 | Precision Planting Llc | System for soil moisture monitoring |
US9723778B2 (en) * | 2014-11-07 | 2017-08-08 | Dawn Equipment Company | Agricultural system |
BR112018073234B1 (en) | 2016-05-13 | 2023-03-07 | Precision Planting Llc | AGRICULTURAL IMPLEMENT, SENSOR ADAPTED TO BE MOUNTED TO AN AGRICULTURAL IMPLEMENT AND METHOD FOR ADJUSTING THE GROOVE CLOSING ASSEMBLY OF THE AGRICULTURAL IMPLEMENT |
-
2019
- 2019-03-08 US US16/978,689 patent/US20200396897A1/en active Pending
- 2019-03-08 WO PCT/US2019/021416 patent/WO2019173754A1/en active Application Filing
- 2019-03-08 AU AU2019231887A patent/AU2019231887A1/en active Pending
- 2019-03-08 EP EP19763360.5A patent/EP3761773B1/en active Active
- 2019-03-08 EP EP23164776.9A patent/EP4218378A1/en active Pending
- 2019-03-08 BR BR112020010595-3A patent/BR112020010595A2/en unknown
- 2019-03-08 LT LTEPPCT/US2019/021416T patent/LT3761773T/en unknown
- 2019-03-08 AR ARP190100589A patent/AR114680A1/en active IP Right Grant
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120067432A1 (en) * | 2009-05-29 | 2012-03-22 | Volvo Construction Equipment Ab | hydraulic system and a working machine comprising such a hydraulic system |
US8448717B2 (en) * | 2010-08-30 | 2013-05-28 | Cnh America Llc | Manual backup system for controlling fluid flow to cylinders within an agricultural implement |
US9144189B2 (en) * | 2012-07-25 | 2015-09-29 | Precision Planting Llc | Integrated implement downforce control systems, methods, and apparatus |
US20170108015A1 (en) * | 2015-10-20 | 2017-04-20 | Caterpillar Inc. | Independent Metering Valves with Flow Sharing |
US11644098B2 (en) * | 2015-12-07 | 2023-05-09 | Kubota Corporation | Hydraulic system of work machine and work machine |
US11612093B2 (en) * | 2016-02-19 | 2023-03-28 | Precision Planting, Llc | Agricultural trench depth systems, methods, and apparatus |
US20170251587A1 (en) * | 2016-03-02 | 2017-09-07 | Deere & Company | Automated leveling and depth control system of a work machine and method thereof |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210144910A1 (en) * | 2012-10-24 | 2021-05-20 | Precision Planting Llc | Agricultural trench closing systems, methods, and apparatus |
US11337363B2 (en) * | 2018-09-28 | 2022-05-24 | Cnh Industrial America Llc | Calibrating a depth control system of a row unit in an agricultural planter |
US11483963B2 (en) | 2019-12-24 | 2022-11-01 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11490558B2 (en) | 2019-12-24 | 2022-11-08 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11516958B2 (en) | 2019-12-24 | 2022-12-06 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11523556B2 (en) | 2019-12-24 | 2022-12-13 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11523555B2 (en) | 2019-12-24 | 2022-12-13 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11553639B2 (en) | 2019-12-24 | 2023-01-17 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11553638B2 (en) | 2019-12-24 | 2023-01-17 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11564344B2 (en) | 2019-12-24 | 2023-01-31 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11564346B2 (en) | 2019-12-24 | 2023-01-31 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11582899B2 (en) | 2019-12-24 | 2023-02-21 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11589500B2 (en) | 2019-12-24 | 2023-02-28 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
US11596095B2 (en) | 2019-12-24 | 2023-03-07 | Cnh Industrial America Llc | Particle delivery system of an agricultural row unit |
Also Published As
Publication number | Publication date |
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EP3761773A1 (en) | 2021-01-13 |
BR112020010595A2 (en) | 2020-11-10 |
WO2019173754A1 (en) | 2019-09-12 |
AR114680A1 (en) | 2020-09-30 |
EP4218378A1 (en) | 2023-08-02 |
LT3761773T (en) | 2023-09-11 |
EP3761773A4 (en) | 2021-04-28 |
EP3761773B1 (en) | 2023-08-02 |
AU2019231887A1 (en) | 2020-06-04 |
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