Abstract
An exhaust gas recirculation (EGR) power module configured for a wire harness of an altimetric/barometric pressure sensor and/or an ambient air sensor of an EGR system for an engine includes a set of wires and a circuit. The set of wires is configured to match the wire harness on the altimetric/barometric pressure sensor and/or the ambient air sensor for the engine. The circuit provides a resistance or resistances to the wire harness through the set of wires.
Claims
1. An exhaust gas recirculation (EGR) power module configured for a wire harness of an ambient air sensor of an EGR system for an engine comprising: a set of wires configured to connect to the wire harness for the ambient air sensor for the engine, where each wire of the set of wires makes an electrical connection to the wire harness for the ambient air sensor for the engine; and a circuit connected to said set of wires; said circuit providing a resistance to the set of wires, said resistance includes a first resistance of approximately or equal to 22.0 ohms on a first output wire, and a second resistance of approximately 47.0 ohms on a second output wire; whereby, the EGR power module being configured to replace the ambient air sensor for the engine to maintain the EGR system at approximately or equal to a load of seven percent without receiving a value from the ambient air sensor.
2. The EGR power module of claim 1, wherein the wire harness of the ambient air sensor includes a female plug, wherein the EGR power module further comprising: a male plug disposed at an end of said set of wires or housing said set of wires, said male plug is configured to connect to the female plug of the wire harness of the ambient air sensor.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The present EGR power module and method of use thereof will be better understood by reading the Detailed Description with reference to the accompanying drawings, which are not necessarily drawn to scale, and in which like reference numerals denote similar structure and refer to like elements throughout, and in which:
(2) FIG. 1 is a top view of an exemplary embodiment of the EGR module according to the instant disclosure;
(3) FIG. 2 is a top view of a schematic diagram of an exemplary embodiment of the EGR module according to the instant disclosure;
(4) FIG. 3 is a bottom view of the EGR from FIG. 2;
(5) FIG. 4 is a side view of the EGR from FIG. 2;
(6) FIG. 5 is a diagram of an exemplary engine with an exemplary EGR system with an exemplary EGR power module installed thereon according to the instant disclosure;
(7) FIG. 6 is a flow chart of an exemplary embodiment of the method of controlling an EGR system of an engine for improving the efficiency and/or life of the engine according to the instant disclosure;
(8) FIG. 7 is a top view of another exemplary embodiment of the EGR module according to the instant disclosure with the circuit built into the plug;
(9) FIG. 8 is an exploded top view of the EGR power module from FIG. 7;
(10) FIG. 9 is a top view of an exemplary circuit that fits into the plug of FIG. 7 for a 2002 through 2006 Detroit Diesel 12.7 and/or 14.0 liter engine; and
(11) FIG. 10 is a top view of an exemplary circuit that fits into the plug of FIG. 7 for a Cummins ISX Diesel engine.
(12) It is to be noted that the drawings presented are intended solely for the purpose of illustration and that they are, therefore, neither desired nor intended to limit the disclosure to any or all of the exact details of construction shown, except insofar as they may be deemed essential to the claimed disclosure.
DETAILED DESCRIPTION
(13) In describing the exemplary embodiments of the present disclosure, as illustrated in FIGS. 1-10, specific terminology is employed for the sake of clarity. The present disclosure, however, is not intended to be limited to the specific terminology so selected, and it is to be understood that each specific element includes all technical equivalents that operate in a similar manner to accomplish similar functions. Embodiments of the claims may, however, be embodied in many different forms and should not be construed to be limited to the embodiments set forth herein. The examples set forth herein are non-limiting examples, and are merely examples among other possible examples.
(14) Referring now to FIGS. 1-5 by way of example, and not limitation, therein is illustrated example embodiments of exhaust gas recirculation (EGR) power module 100. EGR power module 100 may be for controlling EGR system 106 of engine 108 for improved efficiency and/or life of engine 108 without having to remove and/or modify EGR system 106. EGR power module 100 may be configured for wire harness 102 of altimetric/barometric pressure sensor 104 of EGR system 106 and/or for the ambient air sensor 105 of EGR system 106. EGR power module 100 may generally include set of wires 109 and circuit 112. Set of wires 109 may match wire harness 102 on altimetric/barometric pressure sensor 104 and/or ambient air sensor 105 for engine 108 of EGR system 106. Circuit 112 may provide resistance 114 to wire harness 102 through set of wires 109. Circuit 112 may also provide a steady electrical current flow to wire harness 102 through set of wires 109.
(15) Male plug 110 may be included with EGR power module 100. See FIGS. 1 and 7-8. Male plug 110 may be for making installation of EGR power module 100 easier and require less time. However, the invention is not limited to use with male plug 110, as male plug 110 is not required and set of wires 109 may be spliced or otherwise connected to wire harness 102 of altimetric/barometric pressure sensor 104 and/or ambient air sensor 105. Male plug 110 may be disposed at the end of set of wires 109. Male plug 110 may be configured to match the female plug (not shown) of wire harness 102 of altimetric/barometric pressure sensor 104 and/or ambient air sensor 105.
(16) In select embodiments, EGR power module 100 may be for use on a 2002 through 2006 Detroit Diesel 12.7 and/or 14.0 liter engine, or the like. In these select embodiments, EGR power module 100 may maintain EGR system 106 between 5% to 15%. In possibly preferred embodiment, EGR power module 100 may maintain EGR system 106 at between 7% to 10%. In a possibly most preferred embodiment, EGR power module 100 may maintain EGR system 106 at approximately or equal to 7%. In select embodiments, EGR power module 100 may provide resistance 114 of 4.0 to 5.5 ohms. In possibly preferred embodiments, EGR power module 100 may provide resistance 114 of between 4.6 to 5.0 ohms. In a possibly most preferred embodiment, EGR power module 100 may provide resistant 114 of approximately or equal to 4.8 ohms. In other select embodiments, EGR power module 100 may provide steady electrical current flow of approximately 2.5 volts. For example, when EGR power module 100 may be for use on a 2002 through 2006 Detroit Diesel 12.7 and/or 14.0 liter engine, or the like, EGR power module 100 providing resistance 114 of approximately 4.8 ohms and a current flow of approximately 2.5 volts may maintain EGR system 106 of the 2002 through 2006 Detroit Diesel 12.7 and/or 14.0 liter engine at approximately 7%. This desired load of EGR system 106 being 7 percent has been discovered to maximize engine efficiency and improve engine life. However, the invention is not so limited, and any desired load may be maintained with EGR power module 100 by providing the desired resistance 114 and/or current flow. Resistance 114 may be steady and/or it may be designed to vary if desired. The current flow may likewise be steady and/or it may be designed to vary if desired.
(17) In other select embodiments, EGR power module 100 may be for use on a Cummins Diesel engine, like a Cummins ISX Diesel engine, including, but not limited to, a 2002-2011 Cummins ISX Diesel engine, Cummins ISL Diesel engine, Cummins ISB Diesel engine, Cummins ISC Diesel engine, Cummins ISM Diesel engine, Cummins QSB Diesel engine, or the like. In these select embodiments, EGR power module 100 may maintain EGR system 106 between 5% to 15%. In possibly preferred embodiment, EGR power module 100 may maintain EGR system 106 at between 7% to 10%. In a possibly most preferred embodiment, EGR power module 100 may maintain EGR system 106 at approximately or equal to 7%. In select embodiments, EGR power module 100 may provide resistance 114 of between 10.0 and 30.0 ohms on output wire 136, and between 40.0 and 60.0 ohms on the output wire 138 (see FIG. 10). In possibly preferred embodiments, EGR power module 100 may provide resistance 114 of between 20.0 ohms to 25.0 ohms output wire 136, and between 45.0 ohms to 50.0 ohms on output wire 138 (see FIG. 10). In a possibly most preferred embodiment, EGR power module 100 may provide resistant 114 of approximately or equal to 22.0 ohms on output wire 134 and approximately or equal to 47.0 ohms on output wire 138 (see FIG. 10). In other select embodiments, EGR power module 100 may provide steady electrical current flow of approximately 5.0 volts to both output wires. For example, when EGR power module 100 may be for use on a Cummins ISX diesel engine, or the like, EGR power module 100 providing resistance 114 of approximately 22.0 ohms on output wire 136, and approximately 47.0 ohms on output wire 138, and a current flow of approximately 5.0 volts for each may maintain EGR system 106 of the Cummins ISX diesel engine at approximately 7%. This desired load of EGR system 106 being 7 percent has been discovered to maximize engine efficiency and improve engine life. However, the invention is not so limited, and any desired load may be maintained with EGR power module 100 by providing the desired resistance 114 and/or current flow. Resistance 114 may be steady and/or it may be designed to vary if desired. The current flow may likewise be steady and/or it may be designed to vary if desired.
(18) At least one electrical component 116 may be included in circuit 112 of EGR power module 100. See FIGS. 2-3. Electrical component 116 or a plurality of electrical components 116 may be for providing resistance 114 and/or steady state current flow through set of wires 109. Electrical component 116 or the plurality of electrical components 116 may be any desired number, type, and or configuration of electrical components for providing resistance 114 through set of wires 109. In select embodiments, electrical components 116 may include, but are not limited to, at least one resistor 118, at least one capacitor 122, the like, and/or combinations thereof. In select embodiments, circuit 112 may include at least two electrical components 116, including, but not limited to, at least two of the electrical components interconnected in series, as shown in FIG. 3, or a single electrical component on one side and a single electrical component on the other side, as shown in FIGS. 8-10.
(19) Resistors 118 may be included in circuit 112 of EGR power module 100 as some or all of the electrical components 116. See FIGS. 2-3, 7 and 9-10. In select embodiments, resistors 118 may be connected in series, like two (2) resistors 118 resistors connected in series between input wire 134 and first output wire 136 and second output wire 138. The combination of resistors 118 may provide resistance 114 of 4.0 to 5.5 ohms to each first output wire 136 and second output wire 138, possibly between 4.6 to 5.0 ohms to each first output wire 136 and second output wire 138, or even possibly approximately or equal to 4.8 ohms to each first output wire 136 and second output wire 138. As examples, each resistor 118 can carry 5 volts, whereby when connected in series may provide steady electrical current flow of approximately 2.5 volts. Each resistor may be any desired size resistor, including, but not limited thereto, 10 k ohm watt resistor 120. As an example, and clearly not limited thereto, for the Detroit Diesel engines, two (2) 10 k ohm watt resistor 120 has been discovered to work when connected in series between input wire 134 and first output wire 136 and second output wire 138 to provide resistance 114 of 4.8 ohms and the steady electrical current flow of approximately 2.5 volts. In other select embodiments, a single resistor 118 may be positioned between input wire 134 and first output wire 136, and another single resistor 118 may be positioned between input wire 134 and second output wire 138 (see FIGS. 8-10). As examples, the left resistor 118 may provide resistance 114 of 10.0 to 30.0 ohms to first output wire 136, possibly between 20.0 to 25.0 ohms to first output wire 136, or even possibly approximately or equal to 22.0 ohms to first output wire 136. As examples, the right resistor 118 may provide resistance 114 of 40.0 to 60.0 ohms to second output wire 138, possibly between 45.0 to 50.0 ohms to second output wire 138, or even possibly approximately or equal to 47.0 ohms to second output wire 138. As examples, each resistor 118 can carry 5 volts. Each resistor may be any desired size resistor, including, but not limited thereto, 22.0 k ohm watt resistor 121 and/or 47.0 k ohm watt resistor 123, as shown in FIG. 10. As an example, and clearly not limited thereto, for the Cummins ISX engines, a single 22.0 k ohm watt resistor 121 has been discovered to work when connected between input wire 134 and first output wire 136, and a single 47.0 k ohm watt resistor 123 has been discovered to work when connected between input wire 134 and second output wire 138 to provide resistance 114 of 22.0 ohms to one output (136) and 47.0 ohms to the other output (138) and the steady electrical current flow of approximately 5.0 volts.
(20) PC board 124 may be included with circuit 112 of EGR power module 100. See FIGS. 1-4. PC board 124 may be for holding or housing circuit 112 and connecting electrical components 116. PC board 124 may include protrusions and/or soldering points for connecting electrical components 116.
(21) As shown in FIGS. 7-8, in other select embodiments of EGR power module 100a, PC board 124 may not be included, where circuit 112 of EGR power module 100a may be built directly into plug 110. In this embodiment, the electrical components (like resistors) may be connected directly (via wires) to the tab connectors 132 of input wire 134, and first and second output wires 136 and 138 inside plug 110. This may reduce the size of EGR power module 100, reduce the parts required, and make EGR power module 100 more reliable with less connections and the like. In this embodiment, the tab connectors 132 may be held in place inside plug 110 via tab holder 162. For example, each tab connector 132 may be slid into respective holes inside plug 110 where tab holder 162 may then be inserted to lock the tab connectors 132 into place within plug 110. Once in place, the circuit 112 may be sealed inside plug 110 by attaching end cap 160 to the end of plug 110. Prior to attaching end cap 160, for weatherproofing and maintaining circuit 112 in place, an epoxy may be inserted inside plug 110 and around the components of circuit 112.
(22) Referring specifically to FIGS. 8 and 9, an example embodiment of circuit 112 that fits inside of plug 110 is shown for a Detroit Diesel engine. In this embodiment, the input wire 134 is in the middle and is interconnected to the first and second output wires 136 (right side) and 138 (left side). Resistors 118 (or capacitors 122) are positioned in the circuit between input wire 134 and both output wires 136 and 138. As discussed in detail above, although not limited thereto, in a possibly preferred embodiment, resistors 116R and 116L may provide approximately 4.8 ohms and carry 2.5 volts.
(23) Referring specifically to FIG. 10, an example embodiment of circuit 112 that fits inside of plug 110 is shown for a Cummins ISX Diesel engine. In this embodiment, the input wire 134 is in the far right side and is interconnected to the first output wire 136 on the far left side, and the second output wire 138 in the middle. Resistors 118 (or capacitors 122) are positioned in the circuit between input wire 134 and both output wires 136 and 138. As discussed in detail above, although not limited thereto, in a possibly preferred embodiment, resistor 121 between input wire 134 (right side) and first output wire 136 (left side) may provide approximately 22.0 ohms of resistance and carry 5.0 volts, and resistor 123 between input wire 134 (right side) and second output wire 138 (middle) may provide approximately 47.0 ohms of resistance and carry 5.0 volts.
(24) One feature of EGR power module 100 may be that it can be weatherproofed. Weatherproofed, as used herein, may refer to a means or process or device or plurality of devices for providing resistance to the elements, like weather, dust, corrosion, etc. As examples, circuit 112 may be covered in epoxy 126, and/or set of wires 109 and/or male plug 110 may include heat shrink tubing 128. In select embodiments, heat shrink tubing 128, and/or circuit 112, including pc board 124, may be dipped in multipurpose rubber coating 130. Another weatherproofing feature may be the inclusion of potting box 142 for set of wires 109 and tab connectors 132 inside male plug 110. Referring to FIGS. 7-10, another form of weatherproofing may be, after inserting circuit 112 inside plug 110, filling plug 110 with epoxy and attaching cap 160 to the end.
(25) Tab connectors 132 may be included with set of wires 109 in EGR power module 100. See FIGS. 2-3 and 8-10. Tab connectors 132 may be for connecting set of wires 109 to other wires, like wire harness 102 of altimetric/barometric pressure sensor 104 and/or ambient air sensor 105. Tab connectors 132 may be attached to the ends of set of wires 109, including to the end of input wire 134, the end of first output wire 136, and the end of second output wire 138. In select embodiments, additional heat shrink tubing 140 may be attached to or around tab connectors 132, like for sealing and/or weatherproofing the connections.
(26) Referring to FIGS. 2-3 and 8-10, example embodiments of circuit 112 for EGR power module 100 are shown. Circuit 112 may generally include input wire 134, first output wire 136, second output wire 138, and at least one of the electrical components 116 interconnecting input wire 134 with first and second output wires 136 and 138. The at least one electrical component 116 may provide resistance 114 and/or steady electrical current flow from input wire 134 to each of first and second output wires 136 and 138. Electrical components 116 or a plurality of electrical components 116 may be configured in circuit 112 in any desired manner as discussed above, including, but not limited to, at least one resistor 118, at least one capacitor 122, the like, and/or combinations thereof.
(27) In select embodiments of circuit 112 for EGR power module 100, circuit 112 may include at least two electrical components 116 interconnecting input wire 134 with first and second output wires 136 and 138. Referring to the exemplary embodiments of FIGS. 2, in select embodiments, at least one right electrical component 116R may interconnect input wire 134 with first output wire 136, and at least one left electrical component 116L may interconnect input wire 134 with second output wire 138. Referring to the exemplary embodiments of FIGS. 3, in select embodiments, two left electrical components 116L may be interconnected in series between input wire 134 and first output wire 136, and/or two right electrical components 116R may be interconnected in series between input wire 134 and second output wire 138.
(28) In select embodiments of circuit 112 for EGR power module 100, each of the two left electrical components 116L and the two right electrical components 116R may be resistors 118. See FIG. 3. As an example, for the Detroit Diesel engine embodiments, the combination of resistors 118 may provide resistance 114 of 4.0 to 5.5 ohms to each first output wire 136 and second output wire 138, possibly between 4.6 to 5.0 ohms to each first output wire 136 and second output wire 138, or even possibly approximately or equal to 4.8 ohms to each first output wire 136 and second output wire 138. As examples, each resistor 118 can carry 5 volts, whereby when connected in series may provide steady electrical current flow of approximately 2.5 volts. As examples, each resistor may be, but are clearly not limited thereto, 10 k ohm watt resistors 120.
(29) In select embodiments of circuit 112, input wire 134 may be red, first output wire 136 may be black, and/or second output wire 138 may be white, green, or the like. This red, black and white/green color configuration may be designed to match wire harness 102 of altimetric/barometric pressure sensor 104 and/or ambient air sensor 105.
(30) Referring now to FIG. 5, a diagram of exemplary engine 108 with exemplary EGR system 106 with exemplary EGR power module 100 installed thereon is shown. In this diagram, certain locations and parts are shown, namely: the location of EGR gas deliver pipe 106a, the location of EGR mixer 106b, the location of intake manifold 108a, the location of intake manifold air temperature sensor 108b, the location of intake manifold boost pressure sensor 108c, and the location of altimetric/barometric pressure sensor 104 and/or ambient air sensor 105, and its wire harness 102. These locations and parts may be useful for locating wire harness 102 of altimetric/barometric pressure sensor 104 and/or ambient air sensor 105, and installing EGR power module 100 on wire harness 102 of altimetric/barometric pressure sensor 104 and/or ambient air sensor 105. This diagram shown in FIG. 5 may refer schematically to a 2002 through 2006 Detroit Diesel 12.7 and/or 14.0 liter engine and/or a Cummins ISX Diesel Engine.
(31) Referring now to FIG. 6, method 200 of controlling EGR system 106 for improved efficiency and/or life of engine 108 is shown. Method 200 may be carried out utilizing any of the various embodiments of EGR power module 100 as shown and/or described herein. Method 200 may generally include the steps of: step 202 of providing EGR power module 100 configured for wire harness 102 of altimetric/barometric pressure sensor 104 and/or ambient air sensor 105 of EGR system 106 in any of the various embodiments shown and/or described herein; step 204 of removing altimetric/barometric pressure sensor 104 or ambient air sensor 105; step 206 of installing the provided EGR power module 100 on wire harness 102 of altimetric/barometric pressure sensor 104 or ambient air sensor 105 of EGR system 106; and step 208 of controlling EGR system 106 with EGR power module 100.
(32) One feature of method 200 of controlling EGR system 106 for improved efficiency and/or life of engine 108 as disclosed herein is method 200 may be carried out without the steps of removing EGR system 106 and/or modifying EGR system 106.
(33) In select embodiments of method 200 of controlling EGR system 106 for improved efficiency and/or life of engine 108, step 208 of controlling EGR system 106 with EGR power module 100 may include maintaining EGR system 106 at a desired load including providing resistance 114 and/or steady electrical current flow to wire harness 102 of altimetric/barometric pressure sensor 104 or ambient air sensor 105 of EGR system 106 based on the desired load. For example, and clearly not limited thereto, the desired load may be approximately or equal to 7%. As another example, and clearly not limited thereto, resistance 114 may be approximately or equal to 4.8 ohms and/or steady electrical current flow may be maintained at approximately 2.5 volts.
(34) In select embodiments of method 200 of controlling EGR system 106 for improved efficiency and/or life of engine 108, step 204 of removing altimetric/barometric pressure sensor 104 or ambient air sensor 105 may include the steps of: step 204a of locating altimetric/barometric pressure sensor 104 or ambient air sensor 105 on engine 108; and step 204b of unplugging altimetric/barometric pressure sensor 104 or ambient air sensor 105 from its wire harness 102.
(35) In select embodiments of method 200 of controlling EGR system 106 for improved efficiency and/or life of engine 108, step 206 of installing EGR power module 100 on wire harness 102 of altimetric/barometric pressure sensor 104 or ambient air sensor 105 of EGR system 106 may include step 206a of plugging EGR power module 100 into wire harness 102 of altimetric/barometric pressure sensor 104 or ambient air sensor 105.
(36) In other various select embodiments, method 200 of controlling EGR system 106 for improved efficiency and/or life of engine 108 may further include the steps of: step 214 of storing altimetric/barometric pressure sensor 104 and/or ambient air sensor 105 in a safe place; step 216 of starting engine 108; step 218 of looking to see that no check engine lights are on; step 220 of checking that the cross over pipe remains cool to touch; step 222 of checking the actuator rod that controls the variable nozzle turbocharger (VNT) on turbo is going to top at stop screw; the like, and/or combinations thereof.
(37) One feature of method 200 of controlling EGR system 106 for improved efficiency and/or life of engine 108 may be that method 200 can be carried out on a 2002 through 2006 Detroit Diesel 12.7 and/or 14.0 liter engine and/or on a Cummins ISX Diesel engine.
EXAMPLES
(38) Referring to FIGS. 1-3, an embodiment of the present disclosure of EGR power module 100 was created with perforated pc board 124 covered in epoxy 126. A plurality of resistors 118 were attached to pc board 124. Set of wires 109 were connected to the center of the plurality of resistors and to the end of each resistor. Heat shrink tubing 128 covers set of wires 109. All components were dipped in multipurpose rubber coating 130.
(39) Input first wire 134, which may be red, was soldered to the center/bottom of the plurality of resistors 118, as shown as left and right electronic components 116L and 116R First output wire 136, which may be black, was soldered to the end of first resistor 118, as shown as right electronic component 116R. Second output wire 138, which may be white, green or the like, may be soldered to the second resistor 118, as shown as left electronic component 116L. Heat shrink tubing 128 was attached to the outside of input wire 134, first output wire 136, and second output wire 138. Tab connectors 132 were attached to the ends of input wire 134, first output wire 136, and second output wire 138. Additional heat shrink tubing 140 was attached to tab connectors 132. As shown in FIG. 4, the resistor side or top of board 124 was covered with an epoxy/potting 126 for protection. The perforated pc board 124 was then dipped into multipurpose rubber coating 130 for weather protection or the like. Potting box 142 was created inside male plug 110 matching the female end in wire harness 102 on engine 108.
(40) Each resistor 118, as shown as left and right electronic components 116L and 116R, were designed carry approximately five volts. When two of said resistors 118 were tied together in series, the voltage changed to approximately 2.5 volts which may be the desired voltage for the present invention to work. Each of resistors 118 used were 10 k ohm watt resistors 120.
(41) The resulting EGR module 100 was used on various 2002 through 2006 Detroit Diesel 12.7 and/or 14.0 liter engines 108. The results showed that engine 108 ran smoother, increased fuel savings from 0.4 tenths of a mile per gallon to 1.5 miles per gallon, and increased power with EGR power module 100 installed. EGR power module 100 stopped turbo hesitations, eliminated surging, missing, coughing, and provided instant throttle response, with lower vibration levels. With EGR power module 100 installed, the various engines 108 ran more like or even better than a pre-EGR engine.
(42) For calculating fuel savings, if a truck operates an annual 100,000 miles a year at 5.0 miles to the gallon, cost would be $85,000.00 per year in fuel at the current fuel cost of $4.25 per gallon. With the 0.4 tenths of a mile per gallon to 1.5 miles per gallon, being conservative and looking at the lower end of the spectrum of 0.4, at 5.4 miles per gallon the costs go down to $78,704.00, or a savings of at least $6,296.00 per year, or at least $121.07 per week.
(43) The foregoing description and drawings comprise illustrative embodiments. Having thus described exemplary embodiments, it should be noted by those skilled in the art that the within disclosures are exemplary only, and that various other alternatives, adaptations, and modifications may be made within the scope of the present disclosure. Merely listing or numbering the steps of a method in a certain order does not constitute any limitation on the order of the steps of that method. Many modifications and other embodiments will come to mind to one skilled in the art to which this disclosure pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Although specific terms may be employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Accordingly, the present disclosure is not limited to the specific embodiments illustrated herein, but is limited only by the following claims.
