The disclosure is related to devices and methods to move materials including gases, gas/particulate mixtures, liquids, particulates and the like.
Movers, or pumps, or blowers, may be employed to “move” or “pump” a gas, a liquid, a gas/particulate mixture, a liquid/particulate mixture, a solid particulate, and the like. Applications exist in many fields, such as medical (e.g. breathing assistance, pumping blood/fluids, or delivery of medicinal sprays), ventilation (e.g. ventilation of buildings, vehicles, specialized clothing, or helmets), industrial (e.g. petrochemical, food, or material processing), consumer (e.g. toys, engines, compressors, refrigeration, hair dryers, vacuum cleaners, portable fans), and energy (e.g. hydroelectric, pressure storage/release, wind/tide/wave power generation if pump is driven to generate energy).
Desired are more efficient apparatuses and methods for moving gases, fluids, particulates, and mixtures thereof. Desired are apparatuses to move materials in forward and backward directions.
Also desired are efficient apparatuses that may also work in either direction as power generators wherein a moving material is employed to generate energy which may be used immediately or, alternatively stored as mechanical or electrical energy.
As just one example, a material may be pumped in one direction to a higher energy state, and optionally allowed to flow in the opposite direction to generate work.
According, disclosed is a material mover assembly, comprising a chamber having an inlet and an outlet; a first paddle; and a second paddle, wherein the first paddle is positioned in and configured to rotate circumferentially in the chamber, the second paddle is positioned in and configured to rotate circumferentially in the chamber, or is configured to be inserted into and retracted out of the chamber, and wherein relative motion of the first paddle and the second paddle causes material to be pulled into the chamber via the inlet and pushed out of the chamber via the outlet in a forward direction. A “pulling and pushing” of a material may be thought of as a “positive displacement” of a material.
Also disclosed is a planetary gear assembly comprising a sun gear; a planetary gear stage; an outer ring gear; a drive shaft; and a variable speed assembly, wherein the variable speed assembly is coupled to the outer gear or the sun gear and configured to vary the rotation rate of the planetary gear stage in a repeatable and synchronized manner. In some embodiments, two or more variable speed assemblies may be configured together with a concentric output stage.
Also disclosed is an eccentric gear assembly, wherein the output comprises a repeatable and synchronized variable rotation rate. Two or more of such assemblies may be configured together with a concentric output stage.
Also disclosed is a differential gearbox configured so as to have one of its two outputs acted upon to achieve variable speed at two concentric outputs.
The disclosure described herein is illustrated by way of example and not by way of limitation in the accompanying figures. For simplicity and clarity of illustration, features illustrated in the figures are not necessarily drawn to scale. For example, the dimensions of some features may be exaggerated relative to other features for clarity. Further, where considered appropriate, reference labels have been repeated among the figures to indicate corresponding or analogous elements.
In some embodiments, it is not required for one paddle to be static or nearly static during a rotation pattern. In some embodiments, a smoother, e.g. sinusoidal, relative rotation of paddles may be employed.
A chamber may comprise a single inlet and a single outlet, or may comprise multiple inlets and/or outlets. An inlet may be axially aligned with an outlet, or may not be axially aligned. In some embodiments, a chamber may comprise a substantially cylinder-like shape. In other embodiments, a chamber may comprise a substantially sphere-like shape.
In some embodiments, a mover assembly comprises a first paddle, a second paddle, and optionally one or more further paddles configured to be positioned in a chamber and to rotate circumferentially in the chamber. In other embodiments, a mover assembly comprises a first paddle, a second paddle, and one or more further paddles, wherein one or more of the paddles is configured to be inserted into and retracted out of the chamber, and wherein the other paddle(s) are configured to rotate circumferentially in the chamber.
A relative motion of the first paddle and the second paddle causes material to be pulled into the chamber via the inlet and pushed out of the chamber via the outlet in a forward direction.
In some embodiments, as a first paddle rotates, a second paddle is static or nearly static for at least a portion of a first paddle rotation cycle, and wherein as the second paddle rotates, the first paddle is static or nearly static for at least a portion of a second paddle rotation cycle.
In some embodiments, a first and/or second paddle may be configured to rotate at a varying rate of speed over a rotation cycle. A rotation cycle may mean a full 360 degree cycle of a single paddle, or may mean completion of a 360 degree rotation of all paddles of an assembly.
In some embodiments, one paddle may be configured to rotate at a constant rate of speed, while a further paddle may rotate at a varying rate of speed. In some embodiments, a first and a second paddle may both rotate at different, constant rates, and may switch off from fast to slow and from slow to fast, respectively, when one approaches the other.
In some embodiments, a paddle variable rotation rate may occur over a pre-determined set repeating pattern.
In some embodiments, a material mover assembly may comprise a drive shaft and/or a gear assembly. In some embodiments, a drive shaft may be driven via an electric motor. A mover assembly may comprise a step motor or servo motor.
In some embodiments, varying rates of paddle rotation may be achieved with a clutch mechanism to engage/disengage a gear assembly. In other embodiments, varying rates of paddle rotation may be accomplished without engagement/disengagement of a gear assembly. In some embodiments, this may be accomplished with a planetary/epicyclic gear assembly, an eccentric gear set, or a differential gear set.
In some embodiments, a first paddle and a second paddle may be independently driven, or alternatively, may be conjointly driven.
In some embodiments, a paddle rotation direction may be configured to be reversible, a reversible rotation direction causing material to be pulled into the chamber via the outlet and pushed out of the chamber via the inlet in a reverse direction. In some embodiments, paddle rotation in a reverse direction may be configured to store energy, for instance to store energy in a battery or in the form of a spring. This may be achieved for example via a hand crank mechanism or a repetitive ratchet type mechanism. In some embodiments, a certain number of repetitive actuations may pump a material in a reverse direction, and a further actuation may release the material in a forward direction. In some embodiments, a reverse direction may be employed to store material for later release.
In some embodiments, a move assembly may be configured to reverse a direction of operation. A mover assembly may be configured such that material may drive paddles to provide for storage of mechanical or electrical energy.
In some embodiments, driving a material in one direction may provide storing of energy which may be used to drive a material back in an opposite direction. For instance, if a person blows into the device, in some embodiments, the paddles will automatically sort themselves out to follow a cycle where the paddles move at variable relative speed to each other and therefore give an output (to what is the drive shaft when used in a pumping direction) at a near constant rotation speed.
In some embodiments, a mechanism may be employed to aid in storing energy, for example a spring or clockspring mechanism. In some embodiments, a storing mechanism may comprise a release feature, for instance a latch, or the like, configured to be actuated to release material energy causing material to be pulled into the chamber via the inlet and pushed out of the chamber via the outlet in a forward direction. In some embodiments, a mechanism may be configured to store mechanical and/or electrical energy and to release the energy on demand.
In some embodiments, a material mover assembly may be configured to provide substantially a same material flow rate in the forward and the reverse directions. In other embodiments, a material mover assembly may be configured to provide different material flow rates in the forward and the reverse directions. Such a configuration may be employed for instance for a patient having weak inhalation and normal exhalation.
In some embodiments, a material mover may be configured to provide same or different material volumes over a rotation cycle or over a number or rotation cycles in a forward and a reverse direction.
In some embodiments, an assembly may comprise one or more one-way valve to aid in adjusting, amplifying, or reducing material flow rates and/or volumes.
In some embodiments, a first paddle and/or a second paddle may comprise a flexible end or edge in contact with an interior surface of the chamber. This may aid in providing a highly efficient mover by reducing any back-flow. In some embodiments, a material may enter and exit a chamber at a substantially constant, steady flow rate with little turbulence. In some embodiments, a paddle may comprise a rigid material and a flexible end material. In other embodiments, a paddle and an end may comprise a same rigid or a same flexible material. In some embodiments, a flexible end or rigid end may comprise an “arc” shape to aid in opening or closing of inlets/outlets, acting as a sleeve valve.
In some embodiments, a present device or assembly may be employed for example in place of an air fan. A present device may be employed in a breathing apparatus, air ventilation system, an air pump, water pump, medical device (e.g. inhaler), space/diving helmet, refrigeration, etc. In an embodiment, a device may be employed to move air in one direction, wherein the air may be mixed with a medicine to be inhaled, and moved back in the opposite direction to be inhaled by a patient.
In some embodiments, two or more present material mover assemblies may be coupled in a parallel or series (i.e. “stacked”).
Also disclosed is a planetary gear assembly comprising a sun gear; a planetary gear; an outer (ring) gear; a drive shaft; and a variable speed assembly, wherein the variable speed assembly is coupled to the outer gear or the sun gear and configured to vary the rotation rate of the planetary gear stage.
In some embodiments, a variable speed assembly comprises a drive wheel and rod, or wheel and rack, wherein the rod is coupled to the drive wheel and the outer gear or sun gear. In some embodiments, a rod may comprise a multi-rod assembly.
In some embodiments, a drive shaft drives the sun gear or outer gear and the variable speed assembly drive wheel at a constant rotation rate of speed. The variable speed assembly may move the outer gear or sun gear in a back-and-forth position, thereby varying the rotation rate of the planetary gear.
In some embodiments, paddle rotation patterns may be adjustable. For example rotation patterns may be adjusted to vary pressure/flow characteristics, for example high pressure compression at low flow rates or low pressure at high flow rates. For example, in a case where an arc-shaped paddle end closes an outlet in a static position, pressure may increase upon rotation of another paddle. Pressure may be controlled via relative position of one or more paddles.
In some embodiments, intentional backlash or similar slack of paddle positions may be intelligently used to help in re-positioning paddles with respect to inlets and outlets, used to optimize when changing pumping or energy generating directions. This re-positioning may be assisted by pressure, inertia, spring loading, friction or manual/automated actuation and might be constant in an application or temporary/intermittent depending on cycle position or whether in load change, speed change, start-up or slow down.
In some embodiments, an assembly may comprise a plurality of paddles configured to work in a “caterpillar”, or concerted “daisy-chain” way, wherein an assembly may comprise bypass cavities or tunnels wherein material may be pushed in and out with paddle feet acting to close and open the bypass cavities. Bypass cavities may be used to increase pressure in steps throughout a rotation cycle.
In some embodiments, a mover may drive a material in a first direction or a second direction, and may also act as an energy generator in a first or a second direction if driven by a material. In some embodiments, a first direction is opposite to a second direction.
Following are some non-limiting embodiments of the disclosure.
In a first embodiment, disclosed is a material mover assembly, comprising a chamber having an inlet and an outlet; a first paddle; and a second paddle, wherein the first paddle is positioned in and configured to rotate circumferentially in the chamber, the second paddle is positioned in and configured to rotate circumferentially in the chamber, or is configured to be inserted into and retracted out of the chamber, and wherein a relative motion of the first paddle and the second paddle causes material to be pulled into the chamber via the inlet and pushed out of the chamber via the outlet in a forward direction.
In a second embodiment, disclosed is a mover assembly according to the first embodiment, wherein the first paddle and the second paddle are positioned in and configured to rotate circumferentially in the chamber. In a third embodiment, disclosed is a mover assembly according to the second embodiment, wherein as the first paddle rotates, the second paddle is static or nearly static for at least a portion of a first paddle rotation cycle, and wherein as the second paddle rotates, the first paddle is static or nearly static for at least a portion of a second paddle rotation cycle.
In a fourth embodiment, disclosed is a mover assembly according to embodiments 2 or 3, wherein the first paddle and/or the second paddle are configured to rotate at a varying rate over a rotation cycle. In a fifth embodiment, disclosed is a mover assembly according to embodiments 2 or 3, wherein the first paddle and the second paddle are configured to rotate at a varying rate over a rotation cycle.
In a sixth embodiment, disclosed is a mover assembly according to any of embodiments 2 to 4, wherein the first paddle and/or the second paddle are configured to rotate at a constant rate over a rotation cycle. In a seventh embodiment, disclosed is a mover assembly according to embodiments 2 or 3, wherein the first paddle and the second paddle are configured to rotate at constant, different rates over a rotation cycle. In an eighth embodiment, disclosed is a mover assembly according to embodiments 4 and 5, wherein the varying rate is configured to occur in a set repeating pattern over a rotation cycle.
In a ninth embodiment, disclosed is a mover assembly according to the first embodiment, wherein the first paddle is positioned in and configured to rotate circumferentially in the chamber and the second paddle is configured to be inserted into and retracted out of the chamber.
In a tenth embodiment, disclosed is a mover assembly according to any of the preceding embodiments, comprising an electric motor. In an eleventh embodiment, disclosed is a mover assembly according to any of the preceding embodiments, comprising a step motor or a servo motor. In a twelfth embodiment, disclosed is a mover assembly according to any of the preceding embodiments, comprising a clutch mechanism.
In a thirteenth embodiment, disclosed is a mover assembly according to any of the preceding embodiments, comprising a gear assembly. In a fourteenth embodiment, disclosed is a mover assembly according to any of the preceding embodiments, comprising a planetary/epicyclic gear assembly.
In a fifteenth embodiment, disclosed is a mover assembly according to any of the preceding embodiments, wherein movement of the first paddle and the second paddle are independently driven. In a sixteenth embodiment, disclosed is a mover assembly according to any of embodiments 1 to 14, wherein movement of the first paddle and the second paddle are conjointly driven.
In a seventeenth embodiment, disclosed is a mover assembly according to any of the preceding embodiments, wherein a paddle rotation direction is reversible, the reversible rotation direction causing material to be pulled into the chamber via the outlet and pushed out of the chamber via the inlet in a reverse direction. In an eighteenth embodiment, disclosed is a mover assembly according to embodiment 17, wherein paddle rotation in the reverse direction is configured to store energy. In a nineteenth embodiment, disclosed is a mover assembly according to embodiment 18, comprising a mechanism, for example a spring or clockspring, configured to store material energy.
In a twentieth embodiment, disclosed is a mover assembly according to embodiments 18 or 19, comprising a mechanism, for example a latch, configured to be actuated to release material energy causing material to be pulled into the chamber via the inlet and pushed out of the chamber via the outlet in the forward direction. In a twenty-first embodiment, disclosed is a mover assembly according to any of embodiments 17 to 20, wherein the assembly is configured to provide substantially a same material flow rate in the forward and the reverse directions.
In a twenty-second embodiment, disclosed is a mover assembly according to any of embodiments 17 to 20, wherein the assembly is configured to provide different material flow rates in the forward and the reverse directions. In a twenty-third embodiment, disclosed is a mover assembly according to any of embodiments 17 to 22, wherein the assembly is configured to provide different material volumes over a rotation cycle or over a number or rotation cycles in the forward and the reverse direction.
In a twenty-fourth embodiment, disclosed is a mover assembly according to any of the preceding embodiments, comprising a one-way valve. In a twenty-fifth embodiment, disclosed is a mover according to any of the preceding embodiments, wherein the inlet and the outlet are axially aligned. In a twenty-sixth embodiment, disclosed is a mover according to any of embodiments 1 to 24, wherein the inlet and the outlet are not axially aligned.
In a twenty-seventh embodiment, disclosed is a mover according to any of the preceding embodiments, wherein the material enters and exits the chamber at a substantially constant flow rate. In a twenty-eighth embodiment, disclosed is a mover according to any of the preceding embodiments, wherein the first paddle and/or the second paddle comprises a flexible end in contact with an interior surface of the chamber.
In a twenty-ninth embodiment, disclosed is a mover according to any of the preceding embodiments, comprising one or more further paddles positioned within the chamber and configured to rotate circumferentially within the chamber.
In a thirtieth embodiment, disclosed is a mover according to any of the preceding embodiments, wherein the chamber comprises a substantially cylinder-like shape. In a thirty-first embodiment, disclosed is a mover according to any of the preceding embodiments, wherein the chamber comprises a substantially sphere-like shape.
In a thirty-second embodiment, disclosed is a mover according to any of the preceding embodiments, wherein the material is one or more of a gas, a gas/particulate mixture, a liquid, or a particulate solid.
In a thirty-third embodiment, disclosed is a planetary gear assembly comprising a sun gear; a planetary gear; an outer (ring) gear; a drive shaft; and a variable speed assembly, wherein the variable speed assembly is coupled to the outer gear or the sun gear and configured to vary the rotation rate of the planetary gear. In a thirty-fourth embodiment, disclosed is a planetary gear assembly according to embodiment 33, wherein the variable speed assembly is coupled to the outer ring gear.
In a thirty-fifth embodiment, disclosed is a planetary gear assembly according to embodiment 33, wherein the variable speed assembly is coupled to the sun gear. In a thirty-sixth embodiment, disclosed is a planetary gear assembly according to any of embodiments 33 to 35, wherein the variable speed assembly comprises a drive wheel and rod, wherein the rod is coupled to the drive wheel and the outer gear or sun gear. In a thirty-seventh embodiment, disclosed is a planetary gear assembly according to embodiment 36, wherein the rod comprises a multi-rod assembly.
In a thirty-eighth embodiment, disclosed is a planetary gear assembly according to embodiments 36 or 37, wherein the drive shaft drives the sun gear or outer gear and the variable speed assembly drive wheel. In a thirty-ninth embodiment, disclosed is a planetary gear assembly according to any of embodiments 33 to 38, wherein the variable speed assembly is configured to move the outer gear or sun gear in a back-and-forth position, thereby varying the rotation rate of the planetary gear.
In a fortieth embodiment, disclosed is an assembly as described herein, wherein the motor employed to drive a material in a first direction, may be used as a dynamo when the assembly is driven by a material in an opposite direction.
The term “adjacent” may mean “near” or “close-by” or “next to”.
The term “coupled” means that an element is “attached to” or “associated with” another element. Coupled may mean directly coupled or coupled through one or more other elements. An element may be coupled to an element through two or more other elements in a sequential manner or a non-sequential manner. The term “via” in reference to “via an element” may mean “through” or “by” an element. Coupled or “associated with” may also mean elements not directly or indirectly attached, but that they “go together” in that one may function together with the other.
The term “flow communication” means for example configured for liquid or gas flow there through and may be synonymous with “fluidly coupled”. The terms “upstream” and “downstream” indicate a direction of gas or fluid flow, that is, gas or fluid will flow from upstream to downstream.
The term “towards” in reference to a of point of attachment, may mean at exactly that location or point or, alternatively, may mean closer to that point than to another distinct point, for example “towards a center” means closer to a center than to an edge.
The term “like” means similar and not necessarily exactly like. For instance “ring-like” means generally shaped like a ring, but not necessarily perfectly circular.
The articles “a” and “an” herein refer to one or to more than one (e.g. at least one) of the grammatical object. Any ranges cited herein are inclusive. The term “about” used throughout is used to describe and account for small fluctuations. For instance, “about” may mean the numeric value may be modified by ±0.05%, ±0.1%, ±0.2%, ±0.3%, ±0.4%, ±0.5%, ±1%, ±2%, ±3%, ±4%, ±5%, ±6%, ±7%, ±8%, ±9%, ±10% or more. All numeric values are modified by the term “about” whether or not explicitly indicated. Numeric values modified by the term “about” include the specific identified value. For example “about 5.0” includes 5.0.
The term “substantially” is similar to “about” in that the defined term may vary from for example by ±0.05%, ±0.1%, ±0.2%, ±0.3%, ±0.4%, ±0.5%, ±1%, ±2%, ±3%, ±4%, ±5%, ±6%, ±7%, ±8%, ±9%, ±10% or more of the definition; for example the term “substantially perpendicular” may mean the 90° perpendicular angle may mean “about 90° ”. The term “generally” may be equivalent to “substantially”.
The term “nearly” may mean “almost”
Features described in connection with one embodiment of the disclosure may be used in conjunction with other embodiments, even if not explicitly stated.
Embodiments of the disclosure include any and all parts and/or portions of the embodiments, claims, description and figures. Embodiments of the disclosure also include any and all combinations and/or sub-combinations of embodiments.
Filing Document | Filing Date | Country | Kind |
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PCT/US2021/060904 | 11/27/2021 | WO |
Number | Date | Country | |
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63118790 | Nov 2020 | US |