Fluid flow regulator assembly
First Claim
Patent Images
1. A flow control assembly comprising:
- a fluid pump to pump fluid;
a fluid flow resistor assembly to resist a flow of the fluid, the fluid flow resistor assembly comprising a first assembly component and a second assembly component;
the first assembly component including a length of fluid channel, the fluid channel formed in a surface facing of the first assembly component to convey the fluid;
the second assembly component movable with respect to the first assembly component, a surface facing of the second assembly component in contact with the surface facing of the first assembly component and the fluid in the fluid channel to retain flow of the fluid to be within the fluid channel of the first assembly component, the second assembly component including a first port and a second port;
an opening of the first port positioned with respect to the fluid channel at a first location along the length of the fluid channel;
an opening of the second port positioned with respect to the fluid channel at a second location along the length;
wherein the second assembly component is rotatable about an axis with respect to the first assembly component, a first angular position of the second assembly component with respect to the first assembly component about the axis resulting in a full open setting of both the opening of the first port and the opening of the second port into a first channel segment of the fluid channel, the first channel segment being continuous;
wherein the opening of the first port resides at a fixed radius with respect to the axis; and
wherein the opening of the second port resides at the fixed radius with respect to the axis;
wherein the fluid channel includes a second channel segment, a width of the fluid channel in the second channel segment varying to provide variable fluid flow resistance.
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Abstract
A fluid flow resistance assembly includes a fluid pathway. A width of the fluid pathway orthogonal to a flow of fluid through the fluid pathway varies along its length. Positioning of one or more ports at different locations over the fluid pathway at different locations controls a flow rate of fluid.
28 Citations
39 Claims
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1. A flow control assembly comprising:
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a fluid pump to pump fluid; a fluid flow resistor assembly to resist a flow of the fluid, the fluid flow resistor assembly comprising a first assembly component and a second assembly component; the first assembly component including a length of fluid channel, the fluid channel formed in a surface facing of the first assembly component to convey the fluid; the second assembly component movable with respect to the first assembly component, a surface facing of the second assembly component in contact with the surface facing of the first assembly component and the fluid in the fluid channel to retain flow of the fluid to be within the fluid channel of the first assembly component, the second assembly component including a first port and a second port; an opening of the first port positioned with respect to the fluid channel at a first location along the length of the fluid channel; an opening of the second port positioned with respect to the fluid channel at a second location along the length; wherein the second assembly component is rotatable about an axis with respect to the first assembly component, a first angular position of the second assembly component with respect to the first assembly component about the axis resulting in a full open setting of both the opening of the first port and the opening of the second port into a first channel segment of the fluid channel, the first channel segment being continuous; wherein the opening of the first port resides at a fixed radius with respect to the axis; and wherein the opening of the second port resides at the fixed radius with respect to the axis; wherein the fluid channel includes a second channel segment, a width of the fluid channel in the second channel segment varying to provide variable fluid flow resistance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A flow control apparatus comprising:
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a first flow control assembly element including a channel operable to convey fluid, a width of the channel varying along a length of the channel; and a second flow control assembly element in contact with the first flow control assembly element, the second flow control assembly element including a first port in fluid communication with the channel, a position of the first port of the second flow control assembly element adjustable with respect to the channel disposed on the first flow control assembly element to control a flow rate of the fluid through the channel; wherein the second flow control assembly element includes a second port, the second port of the second flow control assembly in fluid communication with the channel disposed on the first flow control assembly element; wherein a relationship between a change in angular rotation of the second flow control assembly element with respect to the first flow control assembly element and resulting change in the flow rate of fluid through the channel is linear; wherein the second assembly component is rotatable about an axis with respect to the first assembly component, at least one angular position of the second assembly component with respect to the first assembly component about the axis resulting in complete blockage of both the opening of the first port and the opening of the second port; and wherein the opening of the first port resides at a fixed radius with respect to the axis; and wherein the opening of the second port resides at the fixed radius with respect to the axis. - View Dependent Claims (29, 30, 31, 32, 33)
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34. A flow control assembly comprising:
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a fluid pump to pump fluid; a fluid flow resistor assembly to resist a flow of the fluid, the fluid flow resistor assembly comprising a first assembly component and a second assembly component; the first assembly component including a length of fluid channel, the fluid channel formed on a planar surface facing of the first assembly component to convey the fluid; the second assembly component movable with respect to the first assembly component, a surface facing of the second assembly component in contact with the planar surface facing of the first assembly component and the fluid in the fluid channel to retain flow of the fluid to be within the fluid channel of the first assembly component, the second assembly component including a first port and a second port; an opening of the first port positioned with respect to the fluid channel at a first location along the length of the fluid channel; and an opening of the second port positioned with respect to the fluid channel at a second location along the length, a width of the fluid channel at the first location into the opening of the first port different than a width of the fluid channel at the second location into the opening of the second port; wherein the fluid channel includes a first channel portion and a second channel portion, the first channel portion disposed at a first radius from a rotational axis about which the second assembly component rotates, the second channel portion disposed at a second radius from the rotational axis. - View Dependent Claims (35, 36, 37, 38, 39)
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Specification