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US 10,480,865 B2Granted
Intermittent thermosyphon
AssigneeJ R Thermal LLC
InventorJeremy Rice
Life of this patent
Estimating the term…
Abstract
The device and methods described herein relate to the isothermal heat transport through an intermittent liquid supply to an evaporator device, thereby enabling high evaporative heat transfer coefficients. A liquid and vapor mixture flows through miniature and micro-channels in an evaporator and addresses flow instabilities encountered in these channels as bubbles rapidly expand. Additionally, a high percentage of the fins are exposed to vapor and limit the required charge of refrigerant within the system due to effective condensate removal in the condenser.
Claims19
A thermosyphon, comprising:
- a condenser having a first condenser orifice through which vapor enters the condenser;
- the condenser further having a second condenser orifice through which liquid leaves the condenser;
- an evaporator having a first evaporator orifice through which vapor exits the evaporator;
- the evaporator further having a second evaporator orifice located below the second condenser orifice through which liquid enters the evaporator, wherein the first evaporator orifice and the second evaporator orifice pass through a planar top interior surface of the evaporator, and the first condenser orifice and the second condenser orifice pass through a planar bottom interior surface of the condenser,
- a plurality of evaporator fins positioned within the evaporator so that each of the evaporator fins extends from the planar bottom interior surface of the evaporator to the planar top interior surface of the evaporator, wherein the plurality of evaporator fins create flow channels to direct movement of fluid within the evaporator from the second evaporator orifice towards the first evaporator orifice, and wherein a notch removing only an upper portion of one or more of the plurality of evaporator fins positioned proximal to the second evaporator orifice allows liquid entering the evaporator unobstructed access to the flow channels,
- and further having a plurality of condenser fins positioned within the condenser so that each of the condenser fins extends from the planar bottom interior surface of the condenser to a planar top interior surface of the condenser, wherein the plurality of condenser fins create flow channels to direct movement of fluid within the condenser from the first condenser orifice towards the second condenser orifice;
- a vapor tube fluidly coupling the first evaporator orifice to the first condenser orifice;
- and
- a liquid tube fluidly coupling the second condenser orifice to the second evaporator orifice.
6 more elements
A thermosyphon, comprising:
- a condenser having a first condenser orifice through which vapor enters the condenser;
- the condenser further having a second condenser orifice through which liquid leaves the condenser;
- an evaporator having a first evaporator orifice through which vapor exits the evaporator;
- the evaporator further having a second evaporator orifice located below the second condenser orifice through which liquid enters the evaporator;
- the evaporator further having a planar top interior surface parallel to a planar bottom interior surface, wherein the first evaporator orifice and the second evaporator orifice pass through the planar top interior surface of the evaporator, the first condenser orifice and the second condenser orifice pass through a planar bottom interior surface of the condenser, and the planar top interior surface of the evaporator is parallel to the planar bottom interior surface of the condenser;
- a plurality of evaporator fins positioned within the evaporator so that each of the evaporator fins extends from the planar bottom interior surface to the planar top interior surface, wherein the evaporator fins form a flow channel to direct movement of fluid within the evaporator from the second evaporator orifice towards the first evaporator orifice, and wherein a notch removing only an upper portion of one or more of the plurality of evaporator fins positioned proximal to the second evaporator orifice allows liquid entering the evaporator unobstructed access to the flow channels
- and further having a plurality of condenser fins positioned within the condenser so that each of the condenser fins extends from the planar bottom interior surface of the condenser to a planar top interior surface of the condenser, wherein the plurality of condenser fins form a flow channel to direct movement of fluid within the condenser from the first condenser orifice towards the second condenser orifice;
- a vapor tube fluidly coupling the first evaporator orifice to the first condenser orifice;
- and
- a liquid tube fluidly coupling the second condenser orifice to the second evaporator orifice.
7 more elements
Dependencies are inferred from the claim text.