Rotary flow divider assembly for agricultural product distribution system

Patent metadata

Field	Value
Publication number	US-9686907-B2
Application number	US-201314364384-A
Country	US
Kind code	B2
Filing date	Jan 18, 2013
Priority date	Jan 9, 2012
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A rotary flow divider assembly is provided that includes a housing having an inlet passage configured to receive agricultural product, a first outlet passage configured to discharge the agricultural product, and a second outlet passage configured to discharge the agricultural product. The rotary flow divider assembly also includes a rotary valve selectively rotatable between a first position that facilitates flow of the agricultural product from the inlet passage to the first and second outlet passages, a second position that facilitates flow of the agricultural product from the inlet passage to the first outlet passage, and substantially blocks flow of the agricultural product from the inlet passage to the second outlet passage, and a third position that facilitates flow of the agricultural product from the inlet passage to the second outlet passage, and substantially blocks flow of the agricultural product from the inlet passage to the first outlet passage.

First claim

The invention claimed is:

1. A rotary flow divider assembly, comprising:
a housing having an inlet passage configured to receive an agricultural product, a first outlet passage configured to discharge the agricultural product, and a second outlet passage configured to discharge the agricultural product, wherein the first and second outlet passages are angled less than 75 degrees relative to a longitudinal axis of the inlet passage; and
a rotary valve disposed within the housing, wherein the rotary valve comprises a first port, a second port, a third port, a first boundary, and a second boundary;
wherein the rotary valve is selectively rotatable between a first position that aligns the first port with the inlet passage, the second port with the first outlet passage, and the third port with the second outlet passage to facilitate flow of the agricultural product from the inlet passage to the first and second outlet passages, a second position that aligns the first port with the first outlet passage, the third port with the inlet passage, and the second boundary with the second outlet passage to facilitate flow of the agricultural product from the inlet passage to the first outlet passage and to substantially block flow of the agricultural product from the inlet passage to the second outlet passage, and a third position that aligns the first port with the second outlet passage, the second port with the inlet passage, and the first boundary with the first outlet passage to facilitate flow of the agricultural product from the inlet passage to the second outlet passage and to substantially block flow of the agricultural product from the inlet passage to the first outlet passage;
wherein the first boundary, the second boundary, and a body of the rotary valve are contoured to establish a substantially smooth flow path from the inlet passage to the first outlet passage, to the second outlet passage, or a combination thereof; and
wherein an inner surface of the first boundary and an inner surface of the second boundary form respective portions of the substantially smooth flow path, the inner surface of the first boundary forms a continuous curve between the first port and the third port, and the inner surface of the second boundary forms a continuous curve between the first port and the second port.

2. The rotary flow divider assembly of claim 1 , wherein the rotary valve is rotatable to a fourth position that substantially blocks flow of the agricultural product from the inlet passage to the first and second outlet passages.

3. The rotary flow divider assembly of claim 1 , wherein the rotary valve is configured to rotate about an axis substantially perpendicular to the longitudinal axis of the inlet passage.

4. The rotary flow divider assembly of claim 3 , wherein the rotary valve comprises a handle having a plurality of protrusions configured to provide a visual indication of valve position.

5. The rotary flow divider assembly of claim 3 , comprising a fastener configured to block rotation of the rotary valve while the fastener is engaged with one of a plurality of notches disposed about a circumference of the rotary valve.

6. The rotary flow divider assembly of claim 1 , comprising an actuator configured to selectively rotate the rotary valve between the first, second, and third positions.

7. The rotary flow divider assembly of claim 1 , comprising a plurality of protrusions distributed about an interior surface of the inlet passage, wherein protrusions of the plurality of protrusions are configured to enhance homogeneity of a distribution of the agricultural product within an air flow.

8. The rotary flow divider assembly of claim 1 , comprising a first housing section and a second housing section, wherein the first and second housing sections are configured to couple to one another to form the housing.

9. The rotary flow divider assembly of claim 1 , wherein an inner diameter of the inlet passage at the rotary valve, an inner diameter of the first outlet passage at the rotary valve, an inner diameter of the second outlet passage at the rotary valve, a diameter of the first port, a diameter of the second port, and a diameter of the third port are substantially equal to one another.

10. A rotary flow divider assembly, comprising:
a housing having an inlet passage configured to receive an agricultural product, a first outlet passage configured to discharge the agricultural product, and a second outlet passage configured to discharge the agricultural product, wherein the first and second outlet passages are angled less than 75 degrees relative to a longitudinal axis of the inlet passage;
a rotary valve disposed within the housing, wherein the rotary valve comprises a first port, a second port, a third port, a first boundary, and a second boundary, the rotary valve is configured to rotate about an axis substantially perpendicular to the longitudinal axis of the inlet passage, the rotary valve comprises a first notch, a second notch, and a third notch, and the first, second, and third notches extend from a body of the rotary valve and are separated from one another along a circumference of the rotary valve; and
a fastener configured to couple to the housing;
wherein the rotary valve is selectively rotatable between a first position that aligns the first port with the inlet passage, the second port with the first outlet passage, and the third port with the second outlet passage to facilitate flow of the agricultural product from the inlet passage to the first and second outlet passages, a second position that aligns the first port with the first outlet passage, the third port with the inlet passage, and the second boundary with the second outlet passage to facilitate flow of the agricultural product from the inlet passage to the first outlet passage and to substantially block flow of the agricultural product from the inlet passage to the second outlet passage, and a third position that aligns the first port with the second outlet passage, the second port with the inlet passage, and the first boundary with the first outlet passage to facilitate flow of the agricultural product from the inlet passage to the second outlet passage and to substantially block flow of the agricultural product from the inlet passage to the first outlet passage;
wherein the first notch is positioned to engage the fastener while the rotary valve is in the first position, the second notch is positioned to engage the fastener while the rotary valve is in the second position, and the third notch is positioned to engage the fastener while the rotary valve is in the third position; and
wherein the first notch is configured to hold the rotary valve in the first position while engaged with the fastener, the second notch is configured to hold the rotary valve in the second position while engaged with the fastener, and the third notch is configured to hold the rotary valve in the third position while engaged with the fastener.

11. The rotary flow divider assembly of claim 10 , wherein the rotary valve is rotatable to a fourth position that substantially blocks flow of the agricultural product from the inlet passage to the first and second outlet passages.

12. The rotary flow divider assembly of claim 10 , wherein the rotary valve comprises a handle having a plurality of protrusions configured to provide a visual indication of valve position.

13. The rotary flow divider assembly of claim 10 , wherein the rotary valve is contoured to establish a substantially smooth flow path from the inlet passage to the first outlet passage, to the second outlet passage, or a combination thereof.

14. The rotar

Assignees

• Cnh Ind Canada Ltd

Inventors

• Hui Ka Po Catherine
• Zacharias Darwin L
• Thompson Dennis G
• Chahley Dennis W

Classifications

• B65G53/56 Primary

  Switches · CPC title

• B65G2201/0202

  Agricultural and processed food products · CPC title

• A01C7/20 Primary

  Parts of seeders for conducting and depositing seed · CPC title

• F16K11/0853

  having all the connecting conduits situated in a single plane perpendicular to the axis of the plug · CPC title

• A01C7/088

  Sectional seeding · CPC title