Flow control system
First Claim
1. A fluid flow control system, comprising:
- (a) a fluid inlet configured to be operatively coupled to a fluid source;
(b) a fluid outlet in fluid communication with the fluid inlet such that fluid may exit the system therethrough;
(c) a proximity sensor for detecting the position of an object within a region adjacent the sensor; and
(d) a flow control device configured to regulate fluid flow between the inlet and outlet in response to object detection by the sensor, wherein the flow control device comprises a disc valve which varies the fluid flow proportional to the detected distance of the object from the sensor;
wherein said disc valve comprises first and second valve plates located adjacent one another, said first valve plate having a pair of circumferentially-spaced arcuate openings and said second valve plate having first and second circumferentially-spaced openings, with each of said circumferentially-spaced openings in the second valve plate selectively alignable with one of said arcuate openings in the first valve plate,wherein the first opening in the second valve plate includes a first portion having a first width and a second portion having a width smaller than the width of the first portion, and the second opening has an area smaller than that of said first opening in the second valve plate; and
further wherein at least one of the valve plates is selectively rotatable with respect to the other for selectively aligning the openings in said first and second valve plates in order to allow fluid flow through the aligned openings, the openings in the valve plates configured such that the second opening in the second valve plate is only aligned with one of the arcuate openings in the first valve plate when both the first and second portions of the first opening in the second valve plate are aligned with the other of said arcuate openings in the first valve plate.
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Abstract
A fluid flow control system having a fluid inlet configured to be operatively coupled to a fluid source, a fluid outlet in fluid communication with the fluid inlet such that fluid may exit the system therethrough, a proximity sensor for detecting the position of an object within a region adjacent the sensor, and a flow control device configured to regulate fluid flow between the inlet and outlet in response to object detection by the sensor, wherein the flow control device varies the fluid flow proportional to the detected distance of an object from the sensor. A water flow control system for use in a shower environment is also provided, as well as a shower control system, methods for controlling water flow based on sensing of the presence and location of an object, and methods for reducing water consumption.
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Citations
16 Claims
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1. A fluid flow control system, comprising:
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(a) a fluid inlet configured to be operatively coupled to a fluid source; (b) a fluid outlet in fluid communication with the fluid inlet such that fluid may exit the system therethrough; (c) a proximity sensor for detecting the position of an object within a region adjacent the sensor; and (d) a flow control device configured to regulate fluid flow between the inlet and outlet in response to object detection by the sensor, wherein the flow control device comprises a disc valve which varies the fluid flow proportional to the detected distance of the object from the sensor; wherein said disc valve comprises first and second valve plates located adjacent one another, said first valve plate having a pair of circumferentially-spaced arcuate openings and said second valve plate having first and second circumferentially-spaced openings, with each of said circumferentially-spaced openings in the second valve plate selectively alignable with one of said arcuate openings in the first valve plate, wherein the first opening in the second valve plate includes a first portion having a first width and a second portion having a width smaller than the width of the first portion, and the second opening has an area smaller than that of said first opening in the second valve plate; and further wherein at least one of the valve plates is selectively rotatable with respect to the other for selectively aligning the openings in said first and second valve plates in order to allow fluid flow through the aligned openings, the openings in the valve plates configured such that the second opening in the second valve plate is only aligned with one of the arcuate openings in the first valve plate when both the first and second portions of the first opening in the second valve plate are aligned with the other of said arcuate openings in the first valve plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A water flow control system for controlling water use by a bather, comprising:
- (a) a water inlet adapted to be operatively coupled to a water source;
(b) a shower head in fluid communication with the water inlet;
(c) a proximity sensor for detecting the presence and position of the bather;
(d) a temperature sensor for sensing water temperature; and
(d) a flow control device configured to regulate water flow through the shower head in response to bather detection by the proximity sensor and water temperature;
wherein the system is adapted to control water flow therethrough based on water temperature and the detected position of the bather, such that;
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water flow increases as the bather moves towards the shower head, —
water flow decreases as the bather moves away from the shower head, and —
water flow is reduced when the temperature of water flowing through the system is at or above a preset temperature and the presence of the bather is not detected by the sensor, while still allowing some water to flow through the system. - View Dependent Claims (12, 13, 14, 15, 16)
- (a) a water inlet adapted to be operatively coupled to a water source;
Specification