1. Field of the Invention
Aspects of the present invention relate to viscous fluid collection devices and particularly to viscous fluid collection devices for collecting and cooling hot or heated viscous fluid, such as oil for an internal combustion engine, fluid from a transmission, valve system or other combustion engine or related device having a coolable viscous fluid, such as in high performance or heavy duty applications. Aspects of the present invention also relate to viscous fluid collection devices in general, and in particular those for radiating or conducting heat away from a collected fluid.
2. Background of the Related Art
Related art viscous fluid collection devices for collecting viscous fluid from engines or other fluid containing devices may include, for example, automobile engines, which usually include oil pans at the bottom of engines. Oil distributed over the crank shaft and/or other components collects in the oil pan under the force of gravity. The oil is then re-circulated using a sump pump or other fluid recirculation mechanism, so that the oil can be reused by the engine for lubrication and/or cooling. It is generally advantageous to avoid denaturing or “break down” of oil as long as possible in this process, so that the parts of the engine can be most effectively lubricated by the re-circulating oil as long as possible.
One of the main causes of oil break down is the high temperatures to which the oil is subjected in a functioning engine. The crank shaft and other engine components are typically thermally coupled to the main heat sources of the engine and, therefore, heat the oil to temperatures close to the operating temperature of the engine. If the temperature of the oil rises above a “break down point,” at which the heat causes chemical denaturing of the oil, the oil may lose some of its lubricating properties. Thermal “break down” of the engine oil may also cause other problems, such as clogging due to the accumulation of waste products or denatured oil in the engine. Such events can also affect properties of the oil, such as viscosity, in ways that alter or degrade the functioning of engine or other components. In some cases, for example, denaturing of the oil can cause problems with sump pumps or fluid recirculation devices, which may be calibrated to pump oil having certain properties (e.g., limited viscosity range) more effectively. The very temperature of the oil itself may be a problem for some pumps or fluid recirculation devices. Other potential problems caused by de-natured oil may include scored pistons, ring damage, and/or general over-heating of the engine. Since over-heating of the engine may cause damage to a variety of components, especially those involving relatively delicate flanges, seals, or portions of the engine where two materials with differing thermal coefficients of expansion meet, this condition typically results in damage to the engine. As a result, over-heating often leads to additional required maintenance and/or part replacements.
Therefore, there is a need in the art for a viscous fluid collection device for use in engines or other fluid containing devices that can avoid these problems by dissipating heat in the collected fluid more effectively. There is also a need in the art for a viscous fluid collection device that can store and effectively cool a greater amount of collected fluid. In addition, there is a need in the art for a viscous fluid collection device or collecting device that is relatively cost effective and easy to manufacture.
While the discussion of the aspects of the present invention that follows uses collecting fluid from an engine for an illustrative purpose, it should be appreciated that such aspects are not limited to this application. Aspects of the invention may be used in a variety of other environments. For example, aspects of the present invention may be used in fluid extraction applications relating to manufacturing, construction, assembly lines, handling and disposing of hazardous materials, underwater manipulations, handling of high temperature materials, or any other suitable environment where a user may need to extract or otherwise handle viscous fluid.
Among other things, aspects of the present invention may aid in the collection and cooling of fluid from an engine or other fluid containing device. For example, in some variations features on the interior and/or exterior of a viscous fluid collection device, in accordance with aspects of the present invention, increase the surface area of the viscous fluid collection device thermal device in contact with the fluid. The features may protrude from one or more of the interior and/or exterior surfaces of the fluid containing device. Additional aspects of the present invention may include a method for cooling a collected viscous fluid from an engine or other fluid containing device using a fluid containing device with increased interior and/or exterior surface area.
One aspect of the present invention comprises: a viscous fluid collection device for collecting viscous fluid, including: an interior cavity where the fluid is collected; a bottom cavity surface, having an exterior facing side and an interior cavity facing side, wherein viscous fluid is collected on the interior cavity facing side; one or more side portions contiguous with the bottom cavity surface, each of the side portions having an exterior facing side and an interior cavity facing side; a flange connected to at least one of the side portions for closeably attaching the cavity of the viscous fluid collection device; and interior or exterior features on at least one of the bottom cavity surface or one of the one or more side portions that increase surface area for the fluid collecting device in communication with collected fluid, the interior or exterior features being configured so as to increase heat dissipation and so as to be in thermal communication with the collected fluid.
In another aspect of the present invention, a viscous fluid collection device for collecting viscous fluid, includes: an interior cavity where the fluid is collected; a bottom cavity surface, having an exterior facing side and an interior cavity facing side; a pattern of features on the interior or exterior side of the bottom cavity surface, wherein the features in the pattern protrude into the interior or exterior of the viscous fluid collection device from the interior or exterior side of the bottom cavity surface and increase surface area for the fluid collecting device contacting collected fluid, the interior or exterior features being located so that they are thereby in thermal communication with the collected fluid; one or more side portions on the bottom cavity surface, each of the side portions having an exterior facing side and an interior cavity facing side; and a flange connected to at least one of the side portions for closeably attaching the cavity of the viscous fluid collection device.
In yet another aspect of the invention, a method of collecting viscous fluid in a device includes: collecting the viscous fluid in an interior cavity of a viscous fluid collection device; and exposing the collected viscous fluid to features protruding from interior walls of the viscous fluid collection device that increase an interior and/or exterior surface area of the viscous fluid collection device, thereby conducting heat away from the collected fluid through the features.
Aspects of the present invention provide, among other things, benefits and advantages that include an increased ability to cool a collected fluid. Further, aspects of the present invention provide benefits in terms of the ease of manufacture of a device used to collect and cool fluid from another device.
Additional advantages and novel features relating to aspects of the present invention will be set forth in part in the description that follows, and in part will become more apparent to those skilled in the art upon examination of the following or upon learning by practice certain aspects thereof.
Aspects of the present invention will become fully understood from the detailed description given herein below and the accompanying drawings, which are given by way of illustration and example only and thus not limited with respect thereto, wherein:
Aspects of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which variations and illustrations of features of the present invention are shown. Aspects of the present invention may, however, be realized in many different forms and should not be construed as limited to the variations set forth herein; rather, the variations are provided so that this disclosure will be thorough and complete in the illustrative implementations, and will fully convey the scope thereof to those skilled in the art.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which aspects of the present invention belong. The methods and examples provided herein are illustrative only and not intended to be limiting.
The exemplary viscous fluid collection device 100 shown in
As shown in
As shown in
For example, if the exemplary viscous fluid collection device 100 is mounted to an engine block on a vehicle, the exterior ridges or fins 110c may direct airflow (e.g., from passing air when the vehicle is in motion) in and around the bottom surface of the exemplary viscous fluid collection device 100 to cool it efficiently. Air or other cooling medium flow may also be assisted using various other air circulating devices, including fans. In addition, liquid coolant may be provided around or through the exterior ridges or fins 110c, for example, in order to, among other things, cool the portion 110 of the exemplary viscous fluid collection device 100 as fluid is collected.
The portion 110 of the exemplary viscous fluid collection device 100 may include other interior or exterior features 10 or other aspects that can increase the overall surface area of the portion 110. As shown in
As shown in
The features 10 or other aspects may include the same or similar materials as other sections of the portion 110 of the exemplary viscous fluid collection device 100. In addition, the features 10 or other aspects may include a material that enhances heat dissipation and/or channels heat away from either the collected viscous fluid or from other portions of the exemplary viscous fluid collection device 100. For example, the features 10 or other aspects may comprise a thermally conductive material, such as a metal, metal alloy, or composite material, or combinations thereof. The features 10 may include fibers or other aspects that aid in the conduction or heat or thermal energy away from viscous fluid contained in the fluid collection device 100. The features 10 or other aspects may be cooled (e.g., using airflow, a fan, thermal bath or other thermal transfer mechanism) to a temperature below that of the collected fluid. It may, for example, be advantageous for the features 10 or other aspects to thermally communicate (e.g., via thermally conductive channels) to draw thermal energy from the features either to another portion of the exemplary viscous fluid collection device 100, to an external reservoir (not shown), or simply away from the exemplary viscous fluid collection device 100.
The side portions 120 of the exemplary viscous fluid collection device 100 may be rectilinear, as shown in
Other aspects of the side portions 120, such as embossed, raised or lowered portions 21 and 22 shown in
The flange 130 may include a flat surface or a surface otherwise shaped and/or sized to fit an engine or other fluid using device. The flange 130 may also include a groove 130a and/or other features for maintaining a seal between the exemplary viscous fluid collection device 100 an engine or other fluid using device, directing fluid, or for one of a number of other suitable purposes. For example, the groove 130a may include features for retaining a pliable mating material, such as paperboard, cork, rubber, flexible plastic, fabric or combination of these and other suitable materials to create a fluid-tight seal when the flange 130 is pressed against a flat or other surface. The flange 130 may also include one or more openings 130b that may, for example, accommodate bolts, pins or other components capable of fixing the exemplary viscous fluid collection device 100 to another device or surface so that, among other things, the device 100 may collect fluid with decreased leakage or fluid loss. Bolts or other fixing or binding members may be inserted into the openings 130b so that the collection device 100 may be bolted, fixed or secured directly to an engine or other fluid containing device. In addition, it may also be possible to use the openings 130b to affix other components, such as pumps, fans or other cooling devices. For example, in one configuration a fan is affixed or otherwise secured to the flange 130 of the exemplary viscous fluid collection device 100, such as by using bolts placed through the openings 130b of the flange 130. The fan may then cool the exemplary viscous fluid collection device 100 itself or cool fluid in the exemplary viscous fluid collection device 100 once it has been collected from an engine or other fluid containing device. Still other devices may be affixed to the flange 130 via openings 130b. For example, diagnostic equipment, such as meters for indicating properties of the collected fluid (e.g., the depth, volume, viscosity, chemical composition or temperature of the collected fluid) may be affixed to the flange 130 using bolts or other fixing members.
Although the invention has been described with reference to various aspects of the present invention and examples with respect to a collecting fluid from an engine, it is within the scope and spirit of the invention to incorporate or be used in conjunction with any suitable device. Further, while the invention has been describe with reference to engine oil collection, the invention may be used with other applications, depending on circumstances in which the invention is used. Thus, it should be understood that numerous and various modifications may be made without departing from the spirit of the invention.