Filtering system with wireless power transfer and separate signal output, filter element and method

Abstract

Aspects herein include filter elements and filtration systems. In embodiments, a filter element includes a filtration system. The filter element can include a filter body and a filtration medium disposed within the filter body. A wireless power receiver can be associated with the filter body. The wireless power receiver can include a receive antenna, a control circuit in electrical communication with the wireless power receiver, and a feedback channel circuit in communication with the control circuit and configured to transmit through a channel separate from the receive antenna. Other embodiments are included herein.

Description

[0001] This application was filed on February 7, 2019, as a PCT international patent application in the name of Donaldson Company, Inc. (a U.S. national company, the applicant in all countries) and U.S. citizens Danny William Miller and Daniel E. Adamek (inventors in all countries), and claims priority to U.S. Provisional Patent Application No. 62 / 627,425, filed on February 7, 2018, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The embodiments described herein relate to filter elements and filtration systems. Background Technology

[0003] Fluid flows typically carry particulate matter. In many cases, it is desirable to remove some or all of the particulate matter from fluid flows. For example, the intake airflow to engines of motor vehicles or power generation equipment, the gas flow to gas turbines, and the airflow to various combustion furnaces typically include particulate matter. If particulate matter reaches the interior of the various mechanisms involved, it can cause substantial damage. Therefore, for such systems, it is desirable to remove particulate matter from the fluid flow upstream of engines, turbines, furnaces, or other equipment involved. A wide variety of air filters or gas filter devices have been developed for particulate removal. In addition to particulate removal, filtration systems can also be used as systems for removing gaseous or liquid contaminants.

[0004] Many filtration systems include filter elements that must be replaced and / or repaired regularly to ensure proper functioning. Summary of the Invention

[0005] The embodiments include filter elements and filtration systems. In one embodiment, a filter element of a filtration system is included. The filter element may include a filter body and a filter medium disposed within the filter body. A wireless power receiver may be associated with the filter body. The wireless power receiver may include a receiving antenna, control circuitry electrically communicating with the wireless power receiver, and feedback channel circuitry communicating with the control circuitry and configured to transmit through a channel separate from the receiving antenna.

[0006] In one embodiment, a filtration system with a filter element is included. The filter element may include a filter body, a filter medium disposed within the filter body, a wireless power receiver associated with the filter body, control circuitry electrically communicating with the wireless power receiver, and feedback channel circuitry communicating with the control circuitry. A filter housing may be included, comprising an internal volume. The filter element may be configured to be mounted within the internal volume of the filter housing. A wireless power transmitter may be associated with the filter housing. A signal receiver may also be associated with the housing.

[0007] In one embodiment, a filtration system is included. The filtration system may include a rotary cylindrical filter, a wireless power receiver associated with the rotary cylindrical filter, control circuitry electrically communicating with the wireless power receiver, and feedback channel circuitry communicating with the control circuitry. A filter head may be configured to receive the rotary cylindrical filter. A wireless power transmitter is associated with the filter head, and a signal receiver is associated with the housing.

[0008] This invention provides an overview of some of the teachings of this application and is not intended to be exclusive or exhaustive of the subject matter. Further details can be found in the detailed description and the appended claims. Other aspects will become apparent to those skilled in the art upon reading and understanding the following detailed description and reviewing the accompanying drawings, which form a part of the detailed description; these should not be considered limiting. The scope of this document is defined by the appended claims and their legal equivalents. Attached Figure Description

[0009] A more complete understanding of the various aspects can be achieved by referring to the following accompanying figures:

[0010] Figure 1 This is a schematic diagram of the data communication environment 100 of the filtering system.

[0011] Figure 2 This is a schematic diagram of an embodiment of a system in which the filtering system according to this disclosure is used.

[0012] Figure 3 These are schematic diagrams of various parts of a filtering system according to the various embodiments described herein.

[0013] Figure 4 These are schematic diagrams of various parts of a filtering system according to the various embodiments described herein.

[0014] Figure 5 This is a schematic cross-sectional view of a filtration system in which a primary filter element is installed, according to various embodiments herein.

[0015] Figure 6This is a schematic cross-sectional view of a filtration system in which a primary filter element is installed, according to various embodiments herein.

[0016] Figure 7 This is a schematic cross-sectional view of a filtration system in which primary filter elements and secondary filter elements are installed, according to various embodiments herein.

[0017] Figure 8 This is a schematic cross-sectional view showing a filtration system according to various embodiments herein, in which primary filter elements and secondary filter elements are installed.

[0018] Figure 9 This is an exploded perspective view showing a filtration system including a housing and filter elements constructed according to the principles of this disclosure.

[0019] Figure 10 This is a schematic exploded perspective view of a filtration system having filter elements according to various embodiments of the present document.

[0020] Figure 11 This is an exploded perspective view of a filter assembly including a filter head and a rotary cylindrical filter according to various embodiments herein.

[0021] While the embodiments are susceptible to various modifications and alternatives, their details have been illustrated by example and accompanying drawings and will be described in detail. However, it should be understood that the scope herein is not limited to the specific embodiments described. Rather, the invention is intended to cover modifications, equivalents, and alternatives that fall within the spirit and scope of this document. Detailed Implementation

[0022] The embodiments described herein may include filter elements and filtration systems, wherein power can be wirelessly supplied to the filter elements to operate their contained circuitry / hardware, including but not limited to control circuitry, sensors, and / or other hardware. Various wireless power transfer techniques (including but not limited to those using time-varying electric, magnetic, or electromagnetic fields) can be used to wirelessly transfer power. The wireless power transfer methods used herein may include non-radiative and radiative techniques. In near-field or non-radiative techniques, power is transferred via a magnetic field using inductive coupling between wire coils, or via an electric field using capacitive coupling between metal electrodes. In various embodiments herein, inductive coupling can be used to wirelessly transfer power to a tag component.

[0023] In some specific embodiments, electromagnetic induction between two loop antennas is employed. In one method, when a wireless power receiver is placed within range of a wireless power transmitter, the antenna coil and capacitor forming the tuning circuit absorb and store energy from the field, thereby generating resonance like an electric tuning fork. This energy can be rectified into direct current, which then powers components of the filter element.

[0024] Typically, it may be desirable for the filter element to provide a signal and / or feedback that is received by another component of the filtration system, such as the filter housing. As an example, this signal could relate to the output of a sensor associated with the filter element. This signal could relate to various factors such as filter status, the expected end-of-life of the filter element, the state of the fluid being filtered, and aspects related to particulate matter or other contaminants within the fluid being filtered.

[0025] In some cases, the same hardware used for wirelessly receiving power can be used to transmit signals from the filter element. For example, the same antenna or coil used for receiving power via inductive technology can be used to transmit information from the filter element. However, it may be desirable for the filter element to use other hardware to generate the signal. In various embodiments herein, the filter element can receive power wirelessly and then transmit the signal to another component of the filtering system (such as the filter housing) using a feedback channel separate from the wireless power receiving hardware. For example, the feedback channel could be an optical feedback channel. However, other types of feedback channels are also envisioned herein. In various embodiments, using a separate feedback channel can make signal generation and / or reception more reliable, more energy-efficient, and / or easier to implement.

[0026] Now for reference Figure 1 The diagram illustrates a data communication environment 100 for a filtration system. A machine 102 (such as a vehicle) may include an engine control unit 104 (ECU) and a filtration system 106. The filtration system 106 can be used for various purposes, including but not limited to filtering fluids such as incoming air, fuel, lubricating oil, or exhaust gases. In some embodiments, the machine 102 includes multiple filtration systems. Exemplary filtration systems are described in more detail below.

[0027] In some embodiments, the filtration system 106 may communicate electronically with the ECU 104 via wired or wireless means. In some embodiments, the filtration system 106 may bypass the ECU 104 or transmit and / or receive wireless signals in parallel with wired or wireless signals exchanged with the ECU 104 to components outside the machine 102 or vehicle. However, in other embodiments, the filtration system 106 may not communicate with components outside the machine 102.

[0028] Machine 102 may be located within a working environment 116. The working environment 116 may represent the geographical area in which machine 102 primarily operates. Depending on the nature of machine 102, the working environment 116 may be considerably large (tens to thousands of square miles) or relatively small (less than 10 or even 1 square mile). The working environment 116 may be, for example, a mining facility, a construction site, a transportation or distribution center, a production facility, etc. In some embodiments, a gateway or repeater unit 110 may be located within the working environment 116. In some embodiments, the gateway or repeater unit 110 may wirelessly communicate with machine 102 and / or its components (such as filtration system 106 and / or ECU 104). In some embodiments, the gateway or repeater unit 110 may be connected to an external data network 122, such as the Internet or various private networks. In some embodiments, the data network 122 may be a packet-switched network. In some embodiments, the gateway or repeater 110 may also include the functionality of a data network router.

[0029] In some embodiments, server 112 may also be located in operating environment 116. Server 112 may receive data from gateway or repeater unit 110. However, it will be understood that in many embodiments, there may be no server 112 in operating environment 116.

[0030] In some embodiments, wireless signals from one or more components such as machine 102, ECU 104, filtering system 106, gateway, or repeater unit 110 can be exchanged with wireless communication tower 120 (or antenna array), which can be a cellular tower or other wireless communication tower. Wireless communication tower 120 can be connected to data network 122, such as the Internet or another type of public or private data network, packet-switched network, or other network.

[0031] The data network can provide one-way or two-way communication with other components outside the operating environment 116. For example, server 124 or other processing devices can receive electronic signals containing data from one or more components such as machine 102, ECU 104, filtering system 106, gateway, or repeater unit 110. Server 124 can interface with database 126 to store data. In some embodiments, server 124 (or a specific device as part of a server system) can interface with user device 128, which allows a user to query data stored in database 126.

[0032] The data generated by the filtration system 106 can be of various types. In some embodiments, the data generated by the filtration system 106 may include data about the following: pressure drop, pressure drop changes over time, primary filter removal events and / or the count of such events, secondary filter removal events and / or the count of such events, primary filter usage hours, secondary filter usage hours, primary filter installation date and time and / or the count of installation events, secondary filter installation date and time and / or the count of installation events, etc.

[0033] Now for reference Figure 2 A schematic diagram of an embodiment of a system in which a filtering system according to this disclosure is used is shown. Figure 2 The diagram schematically illustrates a device 232 (such as a vehicle) with an engine 233 having certain defined rated airflow requirements, for example, at least 50 cfm and a maximum of 1800 cfm. Device 232 can be a bus, a highway truck, an off-road vehicle, a tractor, a light or medium-duty truck, or a marine application such as a speedboat. Engine 233 powers device 232 using an air-fuel mixture. Figure 2 The diagram shows airflow being drawn into the engine 233 at intake region 235. A dashed line indicates an optional turbine 236 to optionally increase the intake airflow into the engine 233. A filtration system 240 with a filter configuration 242 is located upstream of the engine 233 and the turbine 236. Normally, during operation, air is drawn into the filtration system 240 at arrow 244 and passes through the filter configuration 242. At this filter configuration, particles and contaminants are removed from the air. The purified air flows downstream into intake port 235 at arrow 246. Air flows from this intake port into the engine 233 to power the device 232.

[0034] Now for reference Figure 3 This diagram illustrates various portions of a filtration system 300 according to various embodiments herein. The filtration system 300 may include a filter element 302 and a filter housing 304. For ease of illustration, the filter element 302 and the filter housing 304 are simply shown as arranged adjacent to each other. However, it will be understood that in many embodiments, the filter element 302 may be configured to be fitted within at least a portion of the filter housing 304. The filter element 302 may include a filter body (not shown in the diagram). Figure 3 (shown in) and filter media (not shown in) Figure 3(As shown in the diagram). Filter element 302 may further include a wireless power receiver 306 associated with the filter body. In some embodiments, the wireless power receiver 306 may be permanently integrated into the filter body. In other embodiments, the wireless power receiver 306 may be detachably attached to the filter body. The wireless power receiver 306 may also include components such as a receiving antenna 308 and a capacitor 310. Filter element 302 may also include control circuitry 312 that is electrically in communication with the wireless power receiver 306. Filter element 302 may also include feedback channel circuitry 316 that communicates with the control circuitry 312 and is configured to transmit through a channel separate from the receiving antenna 308.

[0035] In this example, the receiving antenna 308 is an inductor. However, the receiving antenna 308 may also take other forms. In various embodiments, the wireless power receiver 306 may include an LC circuit. In various embodiments, the wireless power receiver 306 may include an RF power receiver. The wireless power receiver 306 may be disposed on or within the filter body.

[0036] In some embodiments, the feedback channel circuit may include an optical feedback channel circuit. In some embodiments, the filter element 302 may further include a light emitter 318 that is electrically in communication with the optical feedback channel circuit and / or other electrical components 320. In some embodiments, the light emitter may include a light-emitting diode. In some embodiments, the light emitter may include an infrared light-emitting diode.

[0037] In some embodiments, the signal transmitter can transmit data. For example, an optical signal transmitter can transmit digital information by cyclically turning on and off, which can correspond to "0" and "1" in a binary data format. In other embodiments, the on and off cycle of the signal transmitter can correspond to a non-binary data format.

[0038] The data itself can represent various types of data, including but not limited to data obtained from sensors (as described below).

[0039] In other embodiments, the signal transmitter can be used as part of a sensor. For example, in cases where fluid properties are sensed by absorbance, transmittance, or other optical or non-optical phenomena, the signal transmitter can be used to generate a signal, and a detector (associated with the filter housing) can receive the signal from the signal transmitter.

[0040] In some embodiments, the filter element 302 may further include a sensor 314 in electrical communication with the control circuitry 312. Many different types of sensors are envisioned herein. For example, the sensor 314 may be a pressure sensor, a temperature sensor, a vibration sensor, a particle sensor, a gas concentration sensor, etc.

[0041] In some embodiments, data obtained from sensor 314 is transmitted to an external receiver (such as a receiver associated with filter housing 304) via feedback channel circuit 316.

[0042] Filter housing 304 may define an internal volume, and filter element 302 may be configured to be mounted within the internal volume of filter housing 304. Wireless power transmitter 326 may be associated with filter housing 304. Wireless power transmitter 326 may also include components such as transmitting antenna 328 and capacitor 330. Filter housing 304 may also include control circuitry 332 electrically communicating with wireless power transmitter 326. Signal receiver 336 may be associated with filter housing 304 and may be configured to receive signals from feedback channel circuitry 316. In some embodiments, signal receiver 336 may include photodetector 338. Various circuitry systems may be associated with control circuitry 332, such as power supply 340.

[0043] In this example, the transmitting antenna 328 is an inductor. However, the transmitting antenna 328 can also take other forms. In various embodiments, the wireless power transmitter 326 may include an LC circuit. Figure 3 In the view shown, the transmitting antenna 328 generates an electromagnetic field 342, which is then received by the receiving antenna 308.

[0044] According to various embodiments, the control circuit 332 may include a data storage device (including memory circuitry for data storage that can be read and, in some cases, written) and / or be in electrical communication with the data storage device.

[0045] In some embodiments, the filter housing may define a fluid flow path between the filter housing and the filter element, and the fluid flow path may extend (at least partially) between the light emitter and the signal receiver.

[0046] Now for reference Figure 4This diagram illustrates various portions of a filtration system 300 according to different embodiments herein. In this embodiment, a filter housing 304 defines a fluid flow path 402 through which fluid 404 flows when the filtration system 300 is in operation. The fluid flow path 402 may extend between a light emitter 318 and a photodetector 338. In this way, aspects related to the fluid flowing through the fluid flow path 402 can be determined by evaluating the signal received by the photodetector 338. Fluid aspects that can be determined optically may include turbidity, color, absorbance, etc. However, it will be understood that detectors other than photodetectors may also be used. For example, a first electrode and a second electrode may be used instead of the light emitter 318 and the photodetector 338. In other embodiments, a sound or vibration emitter and a vibration detector may be used instead of the light emitter 318 and the photodetector 338. Many types of emitters and detectors are contemplated.

[0047] Now for reference Figure 5 This diagram illustrates a schematic cross-sectional view of a filtration system 500, according to various embodiments herein, in which a primary filter element 520 is mounted. The filtration system 500 may include a housing 502 comprising a fluid inlet 510 and a fluid outlet 512, defining an internal volume 514. The primary filter element 520 may be disposed within the internal volume 514 of the housing 502 and may be configured to be removably disposed therein. Figure 5 In the view shown, the primary filter element 520 is fully inserted into the housing 502, such that the primary filter element 520 is positioned near or in contact with the distal end 528 of the inner volume 514. On the opposite side of the inner volume 514 is the proximal end 530 of the inner volume 514. The proximal end 530 of the inner volume 514 is configured to engage with a removable cover 504, which is fitted adjacent to the proximal end 530 to seal the proximal end of the housing, thereby preventing fluid from flowing through the proximal end. The removable cover 504 can engage with the proximal end 530 and be held attached to the proximal end by various means or structures including threads, friction-fit mechanisms, latches, buckles, snap-fit ​​mechanisms, etc.

[0048] The power receiving and signal transmitting element 522 may be associated with the filter element 520. The power receiving and signal transmitting element 522 may include components as referenced above. Figure 3 The features associated with the filter element 302. The power transmitting and signal receiving element 524 may be disposed in or on the housing 502. The power transmitting and signal receiving element 524 may include features as referenced above. Figure 3 The filter housing 304 is associated with the following features. The power transmitting and signal receiving element 524 can be configured to wirelessly transmit power to the power receiving and signal transmitting element 522 and transmit signals back from the power receiving and signal transmitting element.

[0049] The positions of the power receiving and signal transmitting elements 522 and 524 relative to other components of the filter element and the filter housing can be changed. Figure 5 In the example, the power receiving and signal transmitting element 522 and the power transmitting and signal receiving element 524 are positioned adjacent to each other. However, reference Figure 6 The power receiving and signal transmitting element 522 and the power transmitting and signal receiving element 524 are separated from each other on both sides of the fluid flow path 602.

[0050] also, Figure 6 More than one power receiving and signal transmitting element 522 and more than one power transmitting and signal receiving element 524 are shown. In this example, a second power receiving and signal transmitting element 622 and a second power transmitting and signal receiving element 624 are shown. The second power receiving and signal transmitting element 622 and the second power transmitting and signal receiving element 624 are separated from each other on both sides of the fluid flow path 602, but in this case, they are positioned further away from the fluid inlet 510 than the power receiving and signal transmitting element 522 and the power transmitting and signal receiving element 524.

[0051] In some cases where there is more than one power receiving and signal transmitting element 522 and / or more than one power transmitting and signal receiving element 524, certain identical components may be shared (e.g. Figure 3 (as shown in the diagram). For example, in some embodiments, the first power receiving and signal transmitting element 522 may include hardware such as an antenna to receive power wirelessly, and then share the received power with the second power receiving and signal transmitting element 622 via a wired connection through the filter element.

[0052] It will be understood that embodiments of the filtration system described herein may include more than one filter element. For example, in some embodiments herein, the filtration system may be configured to include a primary filter element and a secondary filter element. During normal operation, the primary filter element may perform most or all of the filtration activities. However, if the primary filter fails, the secondary filter element (or a backup filter element) can protect the machine in which the filtration system is located by filtering the fluid for a period of time. In some embodiments, the primary filter and the secondary filter are replaced at the same frequency. However, in other embodiments, the primary filter is replaced more frequently than the secondary filter.

[0053] Now for reference Figure 7This diagram illustrates a schematic cross-sectional view of a filtration system 500, according to various embodiments herein, in which a primary filter element 520 and a secondary filter element 521 are mounted. The filtration system 500 may include a housing 502 including a fluid inlet 510 and a fluid outlet 512, defining an internal volume 514. The primary filter element 520 may be disposed within the internal volume 514 of the housing 502 and may be configured to be removably disposed therein. The secondary filter element 521 may be disposed within the internal volume 514 of the housing 502 and may also be configured to be removably disposed therein, simultaneously or separately from the removal of the primary filter element 520.

[0054] exist Figure 7 In the view shown, primary filter element 520 and secondary filter element 521 are fully inserted into housing 502 such that they are positioned near or in contact with the distal end 528 of internal volume 514. On the opposite side of internal volume 514 is proximal end 530. Proximal end 530 of internal volume 514 is configured to engage with cover 504, which is fitted adjacent to proximal end 530 to seal the proximal end of housing, thereby preventing fluid from flowing through that proximal end.

[0055] A first power receiving and signal transmitting element 522 may be associated with (e.g., disposed on or therein) a primary filter element 520, and a second power receiving and signal transmitting element 722 may be associated with (e.g., disposed on or therein) a secondary filter element 521. A first power transmitting and signal receiving element 524 may be disposed in or on a housing 502, and a second power transmitting and signal receiving element 724 may also be disposed in or on a housing 502. The first power transmitting and signal receiving element 524 may be configured to wirelessly transmit power to and receive signals from the first power receiving and signal transmitting element 522. The second power transmitting and signal receiving element 724 may be configured to wirelessly transmit power to and receive signals from the second power receiving and signal transmitting element 722.

[0056] It will be understood that the filtering system described in this article can take many different shapes and configurations. Now refer to... Figure 8This diagram illustrates a schematic cross-sectional view of a filtration system 800, according to various embodiments herein, in which a primary filter element 820 and a secondary filter element 821 are mounted. The filtration system 800 may include a housing 802 having a fluid inlet 810 and a fluid outlet 812. The housing may define an internal volume 814. The primary filter element 820 may be disposed within the internal volume 814 of the housing 802 and may be configured to be removably disposed therein. The secondary filter element 821 may be disposed within the internal volume 814 of the housing 802 and may also be configured to be removably disposed therein. In this embodiment, the primary filter element 820 may be removed with or without removing the secondary filter element 821.

[0057] On the opposite side of the internal volume 814 is the proximal end 830 of the internal volume 814. The proximal end 830 of the internal volume 814 is configured to engage with a cover 804, which is fitted adjacent to the proximal end 830 to seal the proximal end of the housing, thereby preventing fluid from flowing through the proximal end.

[0058] A first power receiving and signal transmitting element 522 may be associated with (e.g., disposed on or therein) a primary filter element 820, and a second power receiving and signal transmitting element 722 may be associated with (e.g., disposed on or therein) a secondary filter element 821. A first power transmitting and signal receiving element 524 may be disposed in or on a housing 802, and a second power transmitting and signal receiving element 724 may also be disposed in or on a housing 802. The first power transmitting and signal receiving element 524 may be configured to wirelessly transmit power to and receive signals from the first power receiving and signal transmitting element 522. The second power transmitting and signal receiving element 724 may be configured to wirelessly transmit power to and receive signals from the second power receiving and signal transmitting element 722.

[0059] As mentioned above, this paper envisions many different shapes and configurations for filtration systems. Now refer to... Figure 9 An exploded perspective view of a filtration system 910, including a housing 912 and a removable and replaceable primary filter element 914, is shown. In the example shown, the housing 912 includes a housing 916 and a removable service cover 918. The cover 918 provides access to the interior of the housing 916 for servicing. Figure 9 The filtration system 910 of the general type depicted typically requires maintenance to involve removing and eliminating at least one filter element (such as the filter element 914 depicted) from the housing 912 for refurbishment or replacement.

[0060] The depicted housing 912 includes an outer wall 920 having an end 921, an air inlet 922, and an air outlet 924. In the depicted embodiment, both inlet 922 and outlet 924 are within the housing 916. In other embodiments, at least one of inlet 922 or outlet 924 may be part of a cover 918. In typical use, ambient or unfiltered air enters the filtration system 910 through inlet 922. Within the filtration system 910, air passes through filter element 914 to achieve a desired level of particulate removal. The filtered air then flows outward from the filtration system 910 through outlet 924 and is directed via a suitable ducting system or conduit to the intake inlet of an associated engine, compressor, or other system.

[0061] although Figure 9 Filter elements for removing particulate matter have been described, but it will be understood that embodiments herein may also include filtration systems and / or filter elements for removing gaseous and / or liquid contaminants.

[0062] The depicted particular filtration system 910 has an outer wall 920 defining a barrel-shaped or generally cylindrical configuration. In this particular configuration, the outlet 924 can be described as an axial outlet because it generally extends in the direction of and circumferentially surrounds the longitudinal central axis defined by the filter element 914. A service cover 918 is generally fitted onto the open end 926 of the housing 916. In the particular arrangement shown, the cover 918 is secured in place above the end 926 by a latch 928.

[0063] Figure 9 A receiving antenna 908 and a signal transmitter 962 are also shown. The receiving antenna may be part of a wireless power receiver, and the signal transmitter may be part of a feedback channel circuit, both disposed on a first end cap 954 of the filter element 914. The transmitting antenna 964 may be mounted on or within an end 921 of the housing 912. In some embodiments, the transmitting antenna 964 may be part of a wireless power transmitter and may be in electrical communication with a system controller 965. A signal receiver (not shown in this view) may be associated with the housing 912 and may receive signals from the signal transmitter 962. The system controller 965 may include various circuitry for telemetry, data (including RAM / ROM and / or data registers) storage and / or processing, power storage and / or modulation, etc. In some embodiments, the system controller 965 may include a microprocessor, a microcontroller, an application-specific integrated circuit (ASIC), etc.

[0064] As used herein, the term "filter element" or "element" refers to a removable and replaceable component comprising a filter medium through which fluid is filtered as it is directed from inlet 922 through the interior to outlet 924, while element 914 performs its filtration function. Unless otherwise stated, the terms "element," "filter element," and "filter" refer to removable and replaceable components within filtration system 910. Preferably, filter elements are configured such that they can be manually removed and replaced at appropriate maintenance intervals.

[0065] In this document, the term "primary element" or "primary filter element" generally refers to the filter element in which most of the dust, particles, or other contaminants accumulate during the use of the filtration system. In a typical system with two elements, the primary element is located upstream of the safety element during typical assembly. In this context, "upstream" means that, due to the location of the filter element during use, the configuration of the filtration system, and the location of the seals, air or other fluids typically must pass through the primary element before passing through the safety element when flowing from inlet 922 to outlet 924.

[0066] In this document, the terms "secondary component" or "safety component" refer to downstream components following the primary component. Typically, very little dust, particles, or other contaminants accumulate on safety components, and accumulation usually only occurs when a part of the primary component fails or a seal fails, dust is displaced due to negligence during the maintenance of the primary component, or some other accident occurs.

[0067] Although many of the filter elements and housings shown so far herein depict cylindrical filter elements and housings configured to fit them, it will be understood that filter elements with many different shapes are contemplated herein. Furthermore, while the embodiments cited above, including secondary or safety filter elements, illustrate such secondary or safety filter elements assembled within a primary filter element, many other configurations of filtration systems including primary and secondary filter elements are contemplated herein. Depending on the context, the reference to “first filter element” may refer to either a primary or secondary filter element as described herein. Similarly, depending on the context, the reference to “second filter element” may refer to either a primary or secondary filter element as described herein.

[0068] Now for reference Figure 10The diagram depicts a schematic exploded perspective view of a filtration system 1060 having a filter element 1000. The filtration system 1060 may include a housing 1061 having housing portions 1062, 1063, into which an axial housing seal 1002 is positioned and pressed during installation. One of the housing portions 1063 will typically be a filter element receiving portion, and will include a receiving groove 1065 into which the seal 1002 is fitted during installation. The second housing portion 1063 will typically include a pressure flange 1064 oriented to apply pressure to a surface during installation, thereby helping to ensure that the sealing surface is pressed to sufficiently compress the sealing member 1012 against the support or sealing surface portion of the groove 1065 for sealing. Various retention mechanisms (such as bolts or eccentric latches) can be used to apply and retain the force.

[0069] Still referencing Figure 10 The housing portion 1063 includes an outer peripheral rim 1070 of the sealing area, which can protrude from the sealing device 1002 during installation in the same direction as the optional handle members 1030, 1031. The filter element 1000 can be recessed within the rim 1070.

[0070] Still referencing Figure 10 The housing portion 1063 also includes a peripheral rim 1071 within the sealing area, the inner peripheral rim being surrounded by a rim 1070 and spaced apart from the rim by a groove 1072 including a sealing engagement surface. The rim 1071 is optional, but preferred. When the filter element 1000 is properly installed, it is typically positioned such that a portion of the sealing device or component 1012 is positioned between the rim 1071 and the rim 1070.

[0071] A receiving antenna 1092, which can be part of a wireless power receiver, and a signal transmitter 1093, which can be part of a feedback channel circuit, can be associated with, for example, disposed on or within, the filter element 1000. Specifically, the receiving antenna 1092 can be disposed on or within the sidewall 1003 of the filter element 1000, or on or within another component of the filter element 1000. A transmitting antenna 1094 can be mounted on or within the housing 1061. The transmitting antenna 1094 can be part of a wireless power transmitter. A signal receiver 1097 can be associated with the housing 1061 and can receive signals from the signal transmitter 1093.

[0072] In some embodiments, the transmitting antenna 1094 may be in electrical communication with a contact pad 1095 including an electrical contact 1096. The contact pad 1095 may facilitate connecting the transmitting antenna 1094 to other devices to transmit power.

[0073] Notice, Figure 10 The housing 1062 is schematic. The housing may also have additional features related to its installation, airflow inlet, airflow outlet, etc. Furthermore, the receiving antenna 1092 and the signal transmitter 1093 may be located in many different specific locations, such as inside the filter element 1000 or within or between the filter element 1000 or other components of the filtration system.

[0074] Now for reference Figure 11 An exploded perspective view of a filter assembly 1140 is shown, which includes a filter head 1144 and a rotary cylindrical filter 1146. The filter head 1144 is operatively capable of receiving both the rotary cylindrical filter 1146 and a filter cup cartridge filter (not shown). "operatively capable of receiving" means that the filter head 1144 includes suitable structures for engaging the rotary cylindrical filter 1146, such that the fluid to be cleaned is guided through appropriate channels and cleaned as intended. Reference Figure 11 The rotary cylindrical filter 1146 includes a disposable housing 1150 and a baffle 1152. The housing 1150 defines the interior of the filter, which permanently holds a non-replaceable cartridge filter (filter element). In some embodiments, the filter head 1144 includes an end face 1145.

[0075] The baffle 1152 includes a plurality of holes 1142 to allow fluid to flow from the filter head 1144 into the internal volume of the rotary cylindrical filter 1146.

[0076] The filter head 1144 includes a block 1158 that includes a continuous outer wall member 1160 forming an outer tube surrounding an inner volume. The filter head block 1158 may define a first port (which is an inlet port in a forward flow system), a second port (which is an outlet port in a forward flow system), and an inner or central tube (which is within the inner volume and circumferentially surrounded by the outer tube).

[0077] In some embodiments, the outer surface 1172 may have a first mechanical connection structure 1174. The first mechanical connection structure 1174 includes many types of devices. Examples of these possible devices include threads, bayonet connections, beaded connections, etc. In the particular embodiment shown, the first connection structure 1174 includes a first plurality of threads 1176. In this particular embodiment, the first plurality of threads 1176 are located on the outer surface 1172 of the wall member 1160. However, in other embodiments, the first plurality of threads may be positioned along the inner surface of the wall member 1160.

[0078] The rotary cylindrical filter 1146 may include a second mechanical connection structure 1125, which in this case is depicted as a thread 1126. The thread 1126 engages with a first plurality of threads 1176 of the first connection structure 1174.

[0079] A wireless power receiver, control circuitry, and feedback channel circuitry (not shown in this view) may be associated with, such as being disposed on or therein, the rotary cylindrical filter 1146. A wireless power transmitter and signal receiver may be associated with, such as being disposed on or therein, the filter head 1144 or its components (e.g., wall member 1160). The wireless power receiver and / or feedback channel circuitry may be associated with and / or disposed therein or on the disposable housing 1150 or a portion thereof. For example, in some embodiments, the wireless power receiver and / or feedback channel circuitry may be associated with and / or disposed therein or on a drain pipe and / or fuel moisture content sensor associated with the disposable housing 1150.

[0080] Various aspects have been described with reference to specific and preferred embodiments and techniques. However, it should be understood that many variations and modifications can be made within the spirit and scope of this document. Thus, the embodiments described herein are not intended to be exhaustive or to limit the invention to the exact forms disclosed in the following detailed description. Rather, the embodiments were chosen and described so that those skilled in the art can understand and comprehend the principles and practice.

[0081] It should be noted that, unless otherwise expressly stated, the singular forms “a,” “an,” and “described” used in this specification and the appended claims include plural references. Thus, for example, a reference to a composition containing “a compound” includes a mixture of two or more compounds. It should also be noted that, unless otherwise expressly stated, the term “or” is generally used in the sense that it includes “and / or.”

[0082] It should also be noted that, as used in this specification and the appended claims, the phrase “configured to” describes a system, device or other structure that is constructed or configured to perform a particular task or employ a particular configuration. The phrase “configured to” may be used interchangeably with other similar phrases such as “arranged and configured to,” “constructed and arranged as,” “constructed to,” “manufactured and arranged as,” etc.

[0083] All publications and patent applications in this specification demonstrate the skill of one ordinary person in the art to which this invention pertains. All publications and patent applications are incorporated herein by reference to the extent that each individual publication or patent application is expressly and individually identified by reference.

Claims

1. An air intake filtration system for a vehicle, comprising: Filter elements; A wireless power receiver, which is associated with a filter element; Control circuit, which is in electrical communication with the wireless power receiver; A feedback channel circuit, which communicates with the control circuit; the feedback channel circuit includes a feedback channel circuit. A filter housing that defines an internal space, wherein filter elements are configured to be assembled within the internal space of the filter housing; A wireless power transmitter, which is associated with a filter housing; as well as A signal receiver, which is associated with a filter housing; The filter housing defines an airflow path, and the feedback channel circuit is configured to evaluate at least one characteristic of the air flowing through the airflow path.

2. The intake filtration system according to claim 1, wherein, The intake filtration system generates data on the following: pressure drop, pressure drop over time, primary filter removal events and / or the count of such events, secondary filter removal events and / or the count of such events, primary filter usage hours, secondary filter usage hours, primary filter installation date and time and / or the count of installation events, and secondary filter installation date and time and / or the count of installation events.

3. The air intake filtration system according to claim 1, wherein the wireless power receiver includes an inductive power receiver.

4. In the air intake filtration system according to claim 1, the wireless power receiver is disposed on or in the filter element.

5. The intake filtration system according to claim 1, wherein the filter element further comprises a light emitter, the light emitter being in electrical communication with the feedback channel circuit.

6. The air intake filtration system according to claim 5, wherein the light emitter comprises an infrared light-emitting diode.

7. The intake filtration system according to claim 1 further includes a sensor, the sensor being in electrical communication with the control circuit.

8. The air intake filtration system according to claim 7, wherein the sensor includes at least one of a pressure sensor, a temperature sensor, a vibration sensor, a turbidity sensor, and a photodetector.

9. An intake air filtration system for a gas turbine system, comprising: Filter elements; A wireless power receiver, which is associated with a filter element; Control circuit, which is in electrical communication with the wireless power receiver; A feedback channel circuit, which communicates with the control circuit; A filter housing that defines an internal space, wherein filter elements are configured to be assembled within the internal space of the filter housing; A wireless power transmitter, which is associated with a filter housing; as well as A signal receiver, which is associated with a filter housing; The feedback channel circuit is configured to evaluate at least one characteristic of the air passing through the filter housing; The intake filtration system generates data and communicates with the gateway or repeater unit.

10. The intake filtration system according to claim 9, wherein, The airflow path separates the transmitter associated with the filter element from the signal receiver associated with the filter housing.

11. The intake filtration system according to claim 9, wherein, The intake filtration system generates data on the following: pressure drop, pressure drop over time, primary filter removal events and / or the count of such events, secondary filter removal events and / or the count of such events, primary filter usage hours, secondary filter usage hours, primary filter installation date and time and / or the count of installation events, and secondary filter installation date and time and / or the count of installation events.

12. The air intake filtration system according to claim 9, wherein the wireless power receiver includes an inductive power receiver.

13. The air intake filtration system according to claim 9, wherein the wireless power receiver is disposed on or within the filter element.

14. The intake filtration system according to claim 9, wherein the filter element further comprises a light emitter, the light emitter being in electrical communication with the feedback channel circuit.

15. The intake filtration system according to claim 9 further includes a sensor, the sensor being in electrical communication with the control circuit.

16. The air intake filtration system according to claim 15, wherein the sensor includes at least one of a pressure sensor, a temperature sensor, a vibration sensor, a turbidity sensor, and a photodetector.

17. A filtration system, comprising: Filter elements; A wireless power receiver, which is associated with a filter element; Control circuit, which is in electrical communication with the wireless power receiver; A feedback channel circuit, which communicates with the control circuit, includes an optical feedback channel circuit. as well as A filter housing that defines an internal space, wherein filter elements are configured to be assembled within the internal space of the filter housing; A wireless power transmitter, which is associated with a filter housing; as well as A signal receiver, which is associated with a filter housing; The filtering system generates data and communicates with the gateway or repeater unit.

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