Agricultural vacuum and electrical generator devices, systems, and methods

Patent metadata

Field	Value
Publication number	US-11877530-B2
Application number	US-202017060844-A
Country	US
Kind code	B2
Filing date	Oct 1, 2020
Priority date	Oct 1, 2019
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

The disclosure relates to devices, systems, and corresponding methods to be used in connection with agricultural planters. More particularly to a vacuum and generator system including a housing, a fan assembly within the housing, a generator, and a hydraulic motor. Some implementations include a voltage regulator or voltage regulation module. The system allow for adjustable fan control without affecting electrical output, integral cooling, and multi-level voltage output from a single generator. Additionally, the system provides greater efficiency in operating an agricultural implement.

First claim

What is claimed is:

1. A system comprising:
(a) a fan housing comprising a first side and a second side;
(b) an adjustable speed fan assembly disposed within the fan housing;
(c) a generator connected to the first side of the fan housing;
(d) a hydraulic motor connected to the second side of the fan housing; and
(e) a voltage regulator in operative communication with the generator, the voltage regulator constructed and arranged to generate consistent output voltage in excess of a required output voltage from variable input voltage from the generator,
wherein:
air passes over the generator and voltage regulator from the fan assembly to provide integral cooling,
the adjustable speed fan assembly and the generator are driven by a common shaft from the hydraulic motor, such that the generator produces variable input voltage correlating to a speed of the adjustable speed fan assembly, and
the generator is a brushless DC motor.

2. The system of claim 1 , wherein the generator provides multi-level voltage output.

3. The system of claim 1 , where in the fan assembly is an adjustable speed fan.

4. The system of claim 1 , further comprising a controller constructed and arranged to modulate speed of the hydraulic motor, speed of the fan assembly, or generator output.

5. The system of claim 1 , further comprising one or more air ducts in fluidic communication with the fan assembly.

6. The system of claim 5 , wherein the one or more air ducts are in communication with one or more seed meters.

7. The system of claim 1 , wherein the output of the voltage regulator powers one or more of a solenoid, a seed meter motor, and a seed delivery motor.

8. An air pressure and electrical generator comprising:
(a) a hydraulic motor comprising a hydraulic motor shaft;
(b) a fan assembly in operative communication with the hydraulic motor shaft;
(c) brushless DC motor in operative communication with the hydraulic motor shaft; and
(d) a voltage regulator in operative communication with the brushless DC motor,
wherein:
actuations of the hydraulic motor shaft cause actuation of both the fan assembly and the brushless DC motor and a speed of the fan assembly is adjustable,
wherein the brushless DC motor produces variable input voltage over the speed range of the fan assembly, and
wherein the voltage regulator is constructed and arranged to generate consistent output voltage from the variable input voltage.

9. The generator of claim 8 , further comprising a connecting shaft extending from the hydraulic motor to the fan assembly and the brushless DC motor, wherein the connecting shaft is configured to rotate the fan assembly and the brushless DC motor.

10. The generator of claim 8 , wherein the fan assembly is configured to generate positive air pressure in one or more air ducts.

11. The generator of claim 8 , wherein the fan assembly is configured to generate negative air pressure in one or more air ducts.

12. The generator of claim 8 , wherein the speed of the fan assembly is adjustable by varying the hydraulic motor speed.

13. The generator of claim 8 , further comprising a controller constructed and arranged to command output voltage of the voltage regulator.

14. The generator of claim 8 , wherein the output of the voltage regulator powers one or more of a solenoid, a seed meter motor, and a seed delivery motor.

15. An agricultural planter system comprising:
(a) a plurality of row units;
(b) a remote hydraulic system;
(c) one or more air pressure and electrical generators comprising:
(i) a motor, in fluidic communication with the remote hydraulic system;
(ii) a fan in operative communication with the motor, wherein the fan is constructed and arranged to generate positive or negative air pressure and wherein a speed of the fan is adjustable to generate varying air pressures;
(iii) a generator in operative communication with the motor and the fan, the generator constructed and arranged to generate variable input voltage,
wherein the motor, fan, and generator rotate about a common axis, and
(iv) a voltage regulator in operative communication with the electrical generator;

(d) one or more seed meters in operative communication with the air pressure and electrical generators,
wherein the voltage regulator is constructed and arranged to generate consistent output voltage from variable input voltage from the generator, and
wherein airflow into the fan is drawn across the generator and the voltage regulator to dissipate heat.

16. The system of claim 15 , wherein the voltage regulator is constructed and arranged to output power via at least two output channels each output channel requiring a different voltage.

17. The system of claim 15 , further comprising a controller in operative communication with the voltage regulator, wherein the controller is constructed and arranged to command output of the voltage regulator.

18. The system of claim 17 , wherein the output of the voltage regulator powers one or more of a solenoid, a seed meter motor, and a seed delivery motor.

19. The system of claim 15 , wherein the generator is a brushless DC motor.

Assignees

• Ag Leader Tech

Inventors

• Barry Alan F
• Westbrook Jeff
• Stevens Kirk
• Ellig Vahid
• Brown Steven

Classifications

• A01C19/02 Primary

  by a motor · CPC title

• A01C7/081

  Seeders depositing seeds in rows using pneumatic means · CPC title

• F04D25/04

  the pump being fluid-driven {(pumps driven by exhaust gases F02B37/00, F02B39/00; turbochargers F02C6/12)} · CPC title

• F04D27/004

  by varying driving speed · CPC title

• A01C15/04 Primary

  using blowers · CPC title