CENTERING ELECTRONIC ROTARY VALVE
20220341506 · 2022-10-27
Inventors
Cpc classification
F16K31/042
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16K5/0242
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16K5/025
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16K37/005
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16K37/0041
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F16K37/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16K31/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A Centering Electronic Rotary Valve (CERV) includes a drive system and a rotor structure comprising a rotor fluid channel input opening communicated with a rotor fluid channel output opening via a rotor fluid directional channel that is moveable via a rotor shaft. The rotor fluid channel input opening is adjacent to and aligned with one of a plurality of stator input channel bottom opening. The rotor fluid channel output opening is adjacent to and aligned with at least one of the plurality of stator output channel bottom openings. The drive system includes a motor and a microprocessor for (i) controlling the rotor shaft to rotate about an axis M and (ii) for positioning the rotor shaft at a defined circumferential position.
Claims
1. A Centering Electronic Rotary Valve (CERV), comprising: a rotor structure comprising a rotor fluid channel input opening communicated with a rotor fluid channel output opening via a rotor fluid directional channel that is moveable via a rotor shaft, wherein the rotor fluid channel input opening is adjacent to and aligned with one of a plurality of stator input channel bottom openings, and the rotor fluid channel output opening is adjacent to and aligned with at least one of the plurality of stator output channel bottom openings; and a drive system comprising a motor and a microprocessor for (i) controlling the rotor shaft to rotate about an axis M and (ii) for positioning the rotor shaft at a defined circumferential position.
2. The CERV of claim 1, further comprising a positioning article, wherein the positioning article includes an encoder disc and an encoder disc reader for transmitting a defined circumferential position to the microprocessor.
3. The CERV of claim 2, wherein the encoder disc includes in excess of 1,000 position marks, each of the position marks associated with a circumferential position of the rotor shaft.
4. The CERV of claim 3, further comprising a sensor interface for receiving a measured indication of a flow output from the rotor fluid channel output.
5. The CERV of claim 4, wherein the microprocessor comprises storage for storing the measured flow and the circumferential position of the rotor shaft.
6. The CERV of claim 3, further comprising a sensor interface for receiving a measured indication of a pressure output from the rotor fluid channel output.
7. The CERV of claim 6, wherein the microprocessor comprises storage for storing the measured pressure and the circumferential position of the rotor shaft.
8. The CERV of claim 5, wherein the microprocessor (i) determines a maximum flow based on the measured indication of the flow output, (ii) determines an associated circumferential position of the rotor shaft associated with the maximum flow and (iii) stores the circumferential position of the rotor shaft associated with the maximum flow in the microprocessor.
9. The CERV of claim 5, wherein the microprocessor (i) determines a maximum pressure based on the measured indication of the flow output, (ii) determines an associated circumferential position of the rotor shaft associated with the maximum pressure and (iii) stores the circumferential position of the rotor shaft associated with the maximum pressure in the microprocessor.
10. The CERV of claim 1, wherein a distal end of the rotor structure is conical shaped and the drive system comprises one or more Polytetrafluoroethylene (TEFLON) based glass bushing.
11. A Centering Electronic Rotary Valve (CERV), comprising: a rotor structure comprising a rotor fluid channel input opening communicated with a rotor fluid channel output opening via a rotor fluid directional channel that is moveable via a rotor shaft, wherein the rotor fluid channel input opening is adjacent to and aligned with one of a plurality of stator input channel bottom openings, and the rotor fluid channel output opening is adjacent to and aligned with at least one of the plurality of stator output channel bottom openings; a drive system comprising a motor and a microprocessor for (i) controlling the rotor shaft to rotate about an axis M and (ii) for positioning the rotor shaft at a defined circumferential position; and a sensor interface for receiving a measured indication of a flow or pressure output from the rotor fluid channel output, wherein the microprocessor (i) determines a maximum flow based on the measured indication of the flow output, (ii) determines an associated circumferential position of the rotor shaft associated with the maximum flow and (iii) stores the circumferential position of the rotor shaft associated with the maximum flow in the microprocessor.
12. The CERV of claim 11, further comprising a positioning article, wherein the positioning article includes an encoder disc and an encoder disc reader for transmitting a defined circumferential position to the microprocessor.
13. The CERV of claim 12, wherein the encoder disc includes in excess of 1,000 position marks, each of the position marks associated with a circumferential position of the rotor shaft.
14. The CERV of claim 12, wherein the microprocessor comprises storage for storing the measured flow and the circumferential position of the rotor shaft.
15. The CERV of claim 11, wherein a distal end of the rotor structure is conical shaped and the drive system comprises one or more Polytetrafluoroethylene (TEFLON) based glass bushing.
16. A Centering Electronic Rotary Valve (CERV), comprising: a rotor structure comprising a rotor fluid channel input opening communicated with a rotor fluid channel output opening via a rotor fluid directional channel that is moveable via a rotor shaft, wherein the rotor fluid channel input opening is adjacent to and aligned with one of a plurality of stator input channel bottom openings, and the rotor fluid channel output opening is adjacent to and aligned with at least one of the plurality of stator output channel bottom openings; a drive system comprising a motor and a microprocessor for (i) controlling the rotor shaft to rotate about an axis M and (ii) for positioning the rotor shaft at a defined circumferential position; an encoder disc; an encoder disc reader for reading the encoder disc to (i) determine a defined circumferential position of the rotor shaft and (ii) transmit the position to the microprocessor; and a sensor interface for receiving a measured indication of a flow or pressure output from the rotor fluid channel output, wherein the microprocessor (i) determines a maximum flow based on the measured indication of the flow output, (ii) determines an associated circumferential position of the rotor shaft associated with the maximum flow and (iii) stores the circumferential position of the rotor shaft associated with the maximum flow in the microprocessor.
17. The CERV of claim 16, wherein the encoder disc includes in excess of 1,000 position marks, each of the position marks associated with a circumferential position of the rotor shaft.
18. The CERV of claim 17, wherein the microprocessor comprises storage for storing the measured flow and the circumferential position of the rotor shaft.
19. The CERV of claim 16, wherein a distal end of the rotor structure is conical shaped and the drive system comprises one or more Polytetrafluoroethylene (TEFLON) based glass bushing.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The foregoing and other features and advantages of the present invention will be more fully understood from the following detailed description of illustrative embodiments, taken in conjunction with the accompanying drawings in which like elements are numbered alike in the several Figures:
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DETAILED DESCRIPTION OF THE INVENTION
[0071] In accordance with the present invention, a unique and novel Centering Electronic Rotary Valve (CERV) 100 is provided. The CERV 100, described herein, may be used as part of diagnostic equipment for the testing of diseases and infections such as, but not limited to, the COVID-19 virus. The CERV 100 may be fully installed in instruments to analyze COVID-19 genetic types and it may also deliver chemistry to an instrument analytical side to discover COVID-19. It should be appreciated that, in one or more embodiments of the invention, the CERV 100 utilizes a unique and novel conical design which advantageously improves the precise port line-up between the track and the ports being selected by placing the components on a common center line. One advantage of this unique and novel design is that this design significantly reduces the need for applying a higher vertical pressure between the components (i.e. in the direction of an imaginary plane that extends through the top of the CERV 100 and the bottom of the CERV 100). Accordingly, due to the reduced need for higher vertical pressures, the material wear is significantly reduced. Moreover, the conical design further allows for a reduced (or even eliminated) risk of fluid sample/reagent carryover. It should be appreciated that in one or more embodiments, the lower body of the CERV 100 may contain a thrust bearing which may act to reduce friction, and the upper body may contain a radial bearing to provide accuracy of the ‘on center’ position of the drive shafts without the need for tapered splines.
[0072] Additionally, the components of the invention may be constructed (wholly or partially) via polymer and/or composite materials which may act to reduce material wear and may provide inert stability. Furthermore, the present invention may include one or more Electronic Vertical Force Sensors (EVFS) within the pressure load path to provide for a measurement (constant or periodic, as desired) of the load force being applied. This would advantageously help to ensure that a consistent and known vertical load force is applied during each assembly. As such, the vertical load force may be monitored, constantly and/or periodically, as desired and the invention may inform an operator (or other entity) that compression has changed within the CERV 100. Additionally, an incremental encoder may be utilized (such as an encoder with a high-resolution reading capability) to maintain the accuracy of each motor step. It should be appreciated that in one or more embodiments, the CERV 100 may include a processing device which stores data captured from the EVFS and an encoder reader to monitor the vertical force and the positional verification of track to port alignment.
[0073] Referring to
Adapter
[0074] Referring to
[0075] Referring to Table I immediately hereinafter and
TABLE-US-00001 Adapter Associated Adapter Associated Adapter Channel Top Opening Bottom Opening AIC AITO AIBO AOC-1 AT-1 AB-1 AOC-2 AT-2 AB-2 AOC-3 AT-3 AB-3 AOC-4 AT-4 AB-4 AOC-5 AT-5 AB-5 AOC-6 AT-6 AB-6 AOC-7 AT-7 AB-7 AOC-8 AT-8 AB-8 AOC-9 AT-9 AB-9 AOC-10 AT-10 AB-10 AOC-11 AT-11 AB-11 AOC-12 AT-12 AB-12 AOC-13 AT-13 AB-13 AOC-14 AT-14 AB-14 AOC-15 AT-15 AB-15 AOC-16 AT-16 AB-16 AOC-17 AT-17 AB-17 AOC-18 AT-18 AB-18 AOC-19 AT-19 AB-19 AOC-20 AT-20 AB-20 AOC-21 AT-21 AB-21 AOC-22 AT-22 AB-22 AOC-23 AT-23 AB-23 AOC-24 AT-24 AB-24
[0076] Accordingly, a fluid introduced into the adapter input channel top opening (AITO) 132 will flow into and through the adapter input channel (AIC) 126 and out of the adapter input channel bottom opening (AIBO 134). Additionally, a fluid introduced into one of the adapter output channel bottom openings (AB1-AB24) 130 will flow into the respective adapter output channel (AO1-AO24) 124 and out of the respective adapter output channel top opening (AT1-AT24) 128. For example, if a fluid is introduced into the first adapter output channel bottom opening (AB-1) 130, the fluid will flow into and through the first adapter output channel (AO1) 124 and out of the first adapter output channel top opening (AT1) 128. It should be appreciated that the adapter output channel top openings 128 and the adapter input channel top opening 132 are located in the adapter top interface portion 120 and the adapter output channel bottom openings 130 and the adapter input channel bottom opening 134 are located in the adapter bottom interface cavity 122.
[0077] Referring to the FIGURES, the shear valve housing 104 is shown and includes a valve housing 105 which encloses a centering stator 136 and a centering rotor 138.
Stator
[0078] Referring to
[0079] Referring to Table II immediately hereinafter, and
TABLE-US-00002 Stator Associated Stator Associated Stator Channel Top Opening Bottom Opening SIC SITO SIBO SOC-1 ST-1 SB-1 SOC-2 ST-2 SB-2 SOC-3 ST-3 SB-3 SOC-4 ST-4 SB-4 SOC-5 ST-5 SB-5 SOC-6 ST-6 SB-6 SOC-7 ST-7 SB-7 SOC-8 ST-8 SB-8 SOC-9 ST-9 SB-9 SOC-10 ST-10 SB-10 SOC-11 ST-11 SB-11 SOC-12 ST-12 SB-12 SOC-13 ST-13 SB-13 SOC-14 ST-14 SB-14 SOC-15 ST-15 SB-15 SOC-16 ST-16 SB-16 SOC-17 ST-17 SB-17 SOC-18 ST-18 SB-18 SOC-19 ST-19 SB-19 SOC-20 ST-20 SB-20 SOC-21 ST-21 SB-21 SOC-22 ST-22 SB-22 SOC-23 ST-23 SB-23 SOC-24 ST-24 SB-24
[0080] Accordingly, a fluid introduced into the stator input channel top opening (SITO) 158 will flow into and through the stator input channel (SIC) 152 and out of the stator input channel bottom opening (SIBO 160). Additionally, a fluid introduced into one of the stator output channel bottom openings (SB-1 to SB-24) 156 will flow into and through the respective stator output channel (SOC-1 to SOC-24) 150 and out of the respective stator output channel top opening (ST-1 to ST-24) 154. For example, if a fluid is introduced into the first stator output channel bottom opening (SB-1) 156, the fluid will flow into and through the first stator output channel (SOC-1) 150 and out of the first stator output channel top opening (ST-1) 154. It should be appreciated that the stator output channel top openings 154 and the stator input channel top opening 158 are located in the stator top interface portion 146 and the stator output channel bottom openings 156 and the stator input channel bottom opening 160 are located in the stator bottom interface cavity 148. Additionally, the stator output channel bottom openings 156 are located at a distance X away from the stator input channel bottom opening 160 and are distributed circumferentially around the stator input channel bottom opening 160.
Rotor
[0081] Referring to
[0082] Referring to
TABLE-US-00003 Adapter Bottom Opening AIBO is mated with Stator Top Opening SITO Adapter Bottom Opening AB-1 is mated with Stator Top Opening ST-1 Adapter Bottom Opening AB-2 is mated with Stator Top Opening ST-2 Adapter Bottom Opening AB-3 is mated with Stator Top Opening ST-3 Adapter Bottom Opening AB-4 is mated with Stator Top Opening ST-4 Adapter Bottom Opening AB-5 is mated with Stator Top Opening ST-5 Adapter Bottom Opening AB-6 is mated with Stator Top Opening ST-6 Adapter Bottom Opening AB-7 is mated with Stator Top Opening ST-7 Adapter Bottom Opening AB-8 is mated with Stator Top Opening ST-8 Adapter Bottom Opening AB-9 is mated with Stator Top Opening ST-9 Adapter Bottom Opening AB-10 is mated with Stator Top Opening ST-10 Adapter Bottom Opening AB-11 is mated with Stator Top Opening ST-11 Adapter Bottom Opening AB-12 is mated with Stator Top Opening ST-12 Adapter Bottom Opening AB-13 is mated with Stator Top Opening ST-13 Adapter Bottom Opening AB-14 is mated with Stator Top Opening ST-14 Adapter Bottom Opening AB-15 is mated with Stator Top Opening ST-15 Adapter Bottom Opening AB-16 is mated with Stator Top Opening ST-16 Adapter Bottom Opening AB-17 is mated with Stator Top Opening ST-17 Adapter Bottom Opening AB-18 is mated with Stator Top Opening ST-18 Adapter Bottom Opening AB-19 is mated with Stator Top Opening ST-19 Adapter Bottom Opening AB-20 is mated with Stator Top Opening ST-20 Adapter Bottom Opening AB-21 is mated with Stator Top Opening ST-21 Adapter Bottom Opening AB-22 is mated with Stator Top Opening ST-22 Adapter Bottom Opening AB-23 is mated with Stator Top Opening ST-23 Adapter Bottom Opening AB-24 is mated with Stator Top Opening ST-24
Moreover, the centering rotor 138 is securely associated with the centering stator 136 such that the stator bottom 144 is sealingly associated with the rotor top 164, wherein the stator input channel bottom opening (SIBO) 160 is aligned with the rotor fluid channel input opening (RITO) 170 and wherein the rotor fluid channel output opening (ROTO) 172 is aligned with at least one of the stator output channel bottom openings (SB-1 to SB-24) 154.
[0083] This may be accomplished by securely associating the adaptor 102 with the centering stator 136 and securely associating the centering stator 136 with the centering rotor 138 as discussed hereinabove, wherein the adapter 102, stator 136 and rotor 138 may be securely and compressingly associated via any device and/or method suitable to the desired end purpose, such as for example, screws, bolts, adhesives, etc. Accordingly, it should be appreciated that the interface between the adaptor bottom and the stator top and/or the stator bottom and the rotor top may be accomplished via any method and/or device suitable to the desired end purpose, such as pressure (i.e. compression), adhesive, coatings to increase sealing ability and/or mechanic devices. Additionally, in other embodiments, it is contemplated that the adaptor 102 and the centering stator 136 may be combined into a single article as desired. It should be appreciated that the connection between the centering stator 136 and the adaptor 102 and the centering rotor 138 is such that fluid flowing between the adapter 102, the centering stator 136 and the centering rotor 138 will not leak from the defined fluid paths and/or openings. Moreover, it should be further appreciated that the centering rotor 138 is rotatably associated with the centering stator 136 such that the centering rotor 138 rotates about an Axis M to align the rotor fluid channel output opening (ROTO) 172 with a desired stator channel bottom opening (SB-1 to SB-24) 156.
[0084] The drive system 112 includes at least one rotor shaft 174 that is associated with the motor 110 such that when the motor 110 is operated, the rotor shaft 174 rotates about the Axis M, thereby causing the rotor 138 to rotate about the Axis M. The drive system further includes a plurality of resilient springs 176 which surround the rotor shaft 174 and which are associated with the rotor shaft 174 and/or the rotor bottom 166 via a plurality of bearings, wherein when the combination of the adapter 102, stator 136 and rotor 138 are compressingly associated with the drive system 112, the plurality of resilient springs 176 are compressed. The plurality of resilient springs 176 are movably associated with the rotor shaft 174 such that the plurality of resilient springs 176 do not move relative to the rotor shaft 174. It should be appreciated that, in one embodiment, at least one compression pressure sensor 178 may be provided and associated with the plurality of resilient springs 176 such that when the plurality of resilient springs 176 are compressed, the compression pressure sensor 178 senses the amount compression being experienced by the plurality of resilient springs 174 and thus, the combination of the adapter 102, stator 136 and rotor 138. This advantageously allows for the pressure being experienced by the combination of the adapter 102, stator 136 and rotor 138 to be monitored (periodically and/or continuously) and modified if desired.
[0085] Referring now to
[0086] Referring to
[0087] Referring to the FIGURES, the top body housing 108 defines a top body housing cavity 212 for housing the components of the drive system 112, such as the rotor drive shaft 174 and the rotor bearing 200, wherein the top body housing cavity 212 includes a top body housing cavity diameter HC.sub.D. It should be appreciated that the top body housing cavity diameter HC.sub.D is sized to snugly and securely contain the rotor bearing 200. Accordingly, the top body housing cavity diameter HC.sub.D and the rotor bearing outer diameter BOH.sub.D are similarly sized such that when the rotor bearing 200 is contained within the top body housing cavity 212, the outer surface of the bearing outer housing 202 is frictionally and nonmovably in compressed contact with the wall of the top body housing cavity 212. Moreover, it should be appreciated that at least a portion of the rotor drive shaft 174 includes a rotor drive shaft diameter RDSD which is similarly sized to the rotor bearing inner cavity diameter RBIC.sub.D. Accordingly, when a portion of the rotor drive shaft 174 is contained within the rotor bearing inner cavity 212, the outer surface of the rotor drive shaft 174 is frictionally and nonmovably in compressed contact with the wall of the bearing inner housing 204. This advantageously allows the rotor drive shaft 174 to be centered within the top body housing 108, and its rotation stably controlled to ensure the precise alignment of the rotor fluid channel output opening (ROTO) 172 with the desired stator output channel bottom opening (SB-1 to SB-24) 154.
[0088] It should be appreciated that the drive system 112 further includes a positioning article 180 that is configured to control the motor 110 (and hence the rotation of the rotor shaft 174) such that location of the rotor fluid channel output opening (RTOO) 172 is precisely located as desired. The positioning article 180 includes a locator disc 182 and a disc reader 184, wherein the locator disc 182 is encoded to divide the rotation of the rotor shaft 174 into a predefined number of positions such that the 360° circumference of the rotation of the rotor shaft 174 is divided into N number of discreet positions. Accordingly, the greater number of discreet positions N, the more exact rotation of the rotor shaft 174 can be controlled and the higher the resolution. Referring to
[0089] In accordance with the present invention, the CERV 100 may include one or more Sensing Articles (SA) 500 to sense pressure of a fluid flowing through at least one of the input channels (AIC, SIC) and the output channels (AOC, SOC). Referring to
[0090] Referring again to the FIGURES, the motor 110 and drive system 112 for operating the CERV 100 are shown. The drive system 112 securely associates the motor 110 to the rotor bottom 166 via the rotor shaft 174 and is configured to rotate the centering rotor 138 about the Axis M in a predefined and controlled manner such that the rotor fluid channel output opening 172 is locatable in a precise, repeatable and predetermined position relative to the stator output channel bottom openings (SB-1 to SB-24) 156. For example, in the embodiment disclosed herein, the CERV 100 includes twenty-four (24) adapter output channels (AO1-AO24) 124 and one (1) adapter input channel (AIC) 126 aligned with twenty-four (24) stator output channels (SOC-1 to SOC-24) 150 and one (1) stator input channel (SIC) 152, respectively. The motor 100 and/or drive system 112 is configured to control the rotor drive shaft 174 to precisely position the rotor 138 such that the rotor fluid channel output opening (ROTO) 172 is aligned with one of the stator output channel bottom openings (SB-1 to SB-24) 156, as desired. For example, the motor 100 and/or drive system 112 may be configured to rotatably control the centering rotor 138 into an initial position such that the rotor fluid channel output opening (ROTO) 172 is aligned with a selected stator output channel bottom opening 156 out of the twenty-four (24) stator output channel bottom openings (SB-1 to SB-24) 156 as desired, such as the first stator output channel bottom opening (SB-1) 156.
[0091] Accordingly, a fluid introduced into the adapter input channel top opening (AITO) 132 would flow through the adapter input channel (AIC) 126 and out of the adapter input channel bottom opening (AIBO) 134. The fluid would then flow into the stator input channel top opening (SITO) 158, through the stator input channel (SIC) 152 and out of the stator input channel bottom opening (SIBO) 160. The fluid would then flow into the rotor fluid channel input opening (RITO) 170, through the rotor fluid directional channel 168 and out of the rotor fluid channel output opening (ROTO) 172. The fluid would then flow into the first stator output channel bottom opening (SB-1), through the first stator output channel (SOC-1), out of the first stator output channel top opening (ST-1), into the first adapter output channel bottom opening (AB-1) 130, through the first adapter output channel (AOC-1) 124 and out of the first adapter output channel top opening (AT-1) 128 and into a manifold associated with the adapter 102 (not shown).
[0092] Referring now to
[0093] The CERV 100 further comprises a glass filled bushing 606 that is configured to keep an upper union assembly of the CERV 100 on center with the encoder reader 603. In some embodiments, the glass filled bushing 606 may be comprised of between 15% and 40% glass. In some embodiments the glass filled bushing 606 may be comprised of 25% glass. In some embodiments, the glass filled bushing 606 may be comprised of polytetrafluoroethylene (i.e., TEFLON™).
[0094] The CERV 100 may further comprise a retaining ring and a thrust washer 608 that are configured to hold the glass filled bushing 606 in place. A second glass filled bushing 612, may be configured to hold a lower spring assembly on center. The second glass filled bushing 612 may be comprised of between 15% and 40% glass. In some embodiments the glass filled bushing 612 may be comprised of 25% glass. In some embodiments, the second glass filled bushing 612 may be comprised of polytetrafluoroethylene (i.e., TEFLON™). The CERV 100 may further comprise (i) a ring 614 to reduce cold flow of rotor material and (ii) a spring 610 for pushing an upper assembly towards a gearbox and to remove any play or shifting to establish vertical encoder disk positioning.
[0095] The CERV 100 may further comprise a control board 602. The control board 602, as illustrated in
[0096] In some embodiments, the storage may be separate from the microprocessor 611. The microprocessor 611 may (i) determine a maximum flow based on the measured indication of the flow output, (ii) determine an associated circumferential position of the rotor shaft 607 associated with the maximum flow and (iii) store the circumferential position of the rotor shaft 607 associated with the maximum flow in the microprocessor or in an external storage. In other words, a position of the rotor shaft 607 may affect flow of a liquid or gas being pushed out of the CERV 100 because a slight deviation of the rotor shaft 607 can create a partial blockage associated with the channel output opening which may reduce flow or pressure.
[0097] In some embodiments, the microprocessor 611 may (i) determine a maximum pressure based on the measured indication of the flow output, (ii) determine an associated circumferential position of the rotor shaft 607 associated with the maximum pressure and (iii) store the circumferential position of the rotor shaft 607 associated with the maximum pressure in the microprocessor.
[0098] Referring now
[0099] In some embodiments, the microprocessor 611, or one or more coprocessors, may measure various data associated with the CERV 100. The microprocessor 611, or one or more coprocessors, may be used to measure and record a peak and/or continuous current draw of the CERV 100. Current draw information may help to determine if the CERV 100 is experiencing higher than normal resistance caused by liquids that may have dried or crystalized within the CERV 100. Recording of the current draw of CERV 100 may be recorded along with a time stamp to determine if the CERV 100 had been shut off for a long period of time.
[0100] It should be appreciated that while the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes, omissions and/or additions may be made, and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. Moreover, embodiments and/or elements of embodiments contemplated and/or disclosed herein may be combined as desired. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the scope thereof. Therefore, it is intended that the invention is not limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims and/or information. Moreover, unless specifically stated any use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.