Fluid activated flow control apparatus

• US 10,088,849 B2
• Filed: 03/21/2016
• Issued: 10/02/2018
• Est. Priority Date: 01/23/2014
• Status: Active Grant

• Current Assignee: Colt Irrigation LLC
• Original Assignee: Colt Irrigation LLC
• Inventors: Hurst, James Walter
• Primary Examiner(s): Jellett, Matthew W
• Application Number:
  US15/075,663
• Publication Number:
  US 20160202708A1
• Time in Patent Office: 925 Days
• CPC Class Codes: A01G 25/00 Watering gardens, fields, sports grounds or the like special apparatus or adaptations for fertilising-liquids A01C23/00; nozzles or outlets, spraying apparatus B05B
• CPC Class Codes: F16K 1/221 specially adapted operating means therefor operating means per se F16K31/00
• CPC Class Codes: F16K 11/0712 comprising particular spool-valve sealing means
• CPC Class Codes: F16K 31/0613 with cylindrical slides
• CPC Class Codes: F16K 31/124 servo actuated
• CPC Class Codes: F16K 31/128 servo actuated
• CPC Class Codes: F16K 31/365 the fluid acting on a diaphragm
• CPC Class Codes: F16K 31/385 the fluid acting on a diaphragm
• CPC Class Codes: F16K 7/17 the diaphragm being actuated by fluid pressure
• CPC Class Codes: F17D 3/00 Arrangements for supervising or controlling working operations
• CPC Class Codes: G05D 16/202 actuated by an electric motor
• CPC Class Codes: G05D 7/0641 using a plurality of throttling means G05D7/067 takes precedence
• CPC Class Codes: Y10T 137/0318 Processes
• CPC Class Codes: Y10T 137/8671 With annular passage [e.g., spool]
• CPC Class Codes: Y10T 137/87772 With electrical actuation

Abstract

Embodiments of a fluid flow regulating device and methods of using the same are described. Certain embodiments manages fluid flow between one or more input ports and output ports at least partly in response to fluid pressure changes and/or by a mechanism driven by fluid flow, optionally without using electrical power.

Claims

1. A fluid regulator, comprising:

a shaft configured with at least;

a first lobe,

a second lobe, and

a crank;

an electric motor configured with an electric circuit;

a first housing, the first housing configured with at least;

a first port configured to enable a bi-directional fluid path to a first set of output valves, and

a second port configured to enable a bi-directional fluid path to a second set of output valves;

a piston contained within the first housing, the piston in operative communication with the shaft via the crank, wherein the piston is capable of travel within the first housing;

an actuator configured to;

open the first set of output valves and close the second set of output valves at least partly in response to;

receipt of an electrical signal at the electric motor, which causes the shaft to rotate towards a first shaft position and movement of the piston towards a first piston position,

wherein the shaft rotation is stopped at the first shaft position and the movement of the piston is stopped at the first piston position at least partly in response to the first lobe of the shaft interfacing with the electric circuit while the shaft is rotating, which in turn causes, at least in part,

the electric motor to reduce or halt power consumption, and while the piston of the actuator is at the first position,

 

enable, a first fluid flow from the second port to the second set of output valves, and

 

enable, a second fluid flow from the first set of output valves to the first port;

close the first set of output valves and open the second set of output valves at least partly in response to;

a subsequent electrical signal at the electric motor, which causes the shaft to rotate towards a second shaft position and movement of the piston towards a second piston position which in turn causes, at least in part,

the second lobe of the rotating valve shaft to interface with the electric circuit, which in turn causes, at least in part, the shaft to stop at the second shaft position and the piston to stop at the second piston position, which in turn causes, at least in part,

the electric motor to reduce or halt power consumption, and

while the piston is at the second position,

 

a third fluid flow from the first port to the first set of output valves is enabled, and

 

a fourth fluid flow from the second set of output valves to the second port is enabled.

2. The fluid regulator as defined in claim 1, wherein the first set of output valves or the second set of output valves comprises a single output valve.