Apparatus, systems, and methods for relieving and regulating pressure during the execution of fluid services in machinery.

Abstract

A valve assembly configured to perform a fluid service in a machine is disclosed. The valve assembly comprises an inlet / outlet port that fluidly connects a fluid component to an internal cavity defined by the valve assembly, a filter port that fluidly connects the internal cavity to a filter in the machine, and a pressure regulating system. The pressure regulating system comprises a plunger head configured to move between an open position and a closed position, a plunger head seat, and a spring having a spring constant that is configured to bias the plunger head to the open position. The spring constant is set to be overcome in accordance with a given pressure in the machine.

Description

Technical Field

[0001] The present disclosure generally relates to a valve assembly configured for use with a fluid system of a machine, and more particularly, to a valve assembly that can self-regulate and / or relieve pressure while performing a fluid service on an engine of the machine.

Summary of the Invention

[0002] In some aspects, the present disclosure relates to a valve assembly configured to perform a fluid service on a machine. The valve assembly may include an inlet / outlet port that fluidly connects a fluid component to an internal cavity defined by the valve assembly, a filter port that fluidly connects the internal cavity to a filter of the machine, and a pressure regulating system. The pressure regulating system may include a plunger head configured to transition between an open position and a closed position, and a plunger head seat configured as the plunger head and the plunger head seat, and configured as a whole to define an opening between the internal cavity and the filter port in the open position, and configured as a whole to establish a fluid seal between the internal cavity and the filter port in the closed position. The pressure regulating system may further include a spring configured to bias the plunger head in the open position and having a spring constant, and the spring constant is set to be overcome in response to a predetermined pressure within the valve assembly.

[0003] In other non-limiting embodiments, the disclosure relates to another valve assembly configured to perform a fluid service in a machine. The valve assembly may comprise an inlet / outlet port that fluidly connects a fluid component to an internal cavity defined by the valve assembly, a mechanical reservoir port that fluidly connects the internal cavity to a mechanical reservoir of the machine, and a pressure relief system. The pressure relief system comprises a housing, a poppet, and a spring. The poppet is configured to define an opening and to transition between a closed position in which the opening is housed within the housing and cannot carry fluid from the internal cavity to the mechanical reservoir port, and an open position in which the opening protrudes beyond the housing and can carry fluid from the internal cavity to the mechanical reservoir port. The spring is configured to bias the poppet to the closed position and has a spring constant, which is set to be overcome in response to a given pressure in the valve assembly.

[0004] In further, other non-limiting embodiments, the Disclosure relates to a method for controlling pressure within a valve assembly. This method may include initiating a fluid process in a machine via a valve assembly, regulating a first pressure in the machine during the fluid process via a pressure regulating system, relieving a second pressure in the valve assembly during the fluid process via a pressure relief system, and completing the fluid process on the machine. [Brief explanation of the drawing]

[0005] Various features of the embodiments described herein are specifically described in the appended claims. However, these various embodiments, with respect to both their configuration and method of operation, along with their advantages, can be understood in accordance with the following description made in conjunction with the following appended drawings.

[0006] [Figure 1] Figure 1 shows a fluid system including a valve assembly configured to regulate and / or relieve pressure during the performance of a fluid service in a machine, according to at least one non-limiting aspect of the present disclosure.

[0007] [Figure 2A-C] Figures 2A–C show perspective, side, and cross-sectional views, respectively, of the valve assembly of the system in Figure 1, the valve assembly including a pressure relief system and a pressure adjustment system according to at least one non-limiting aspect of the present disclosure.

[0008] [Figure 3] Figure 3 shows a side view of another valve assembly including a pressure relief system, according to at least one non-limiting aspect of the present disclosure.

[0009] [Figure 4] Figure 4 shows a cross-sectional view of the valve assembly fractured along the fracture line AA in Figure 3, with the pressure relief system in the closed position.

[0010] [Figure 5] Figure 5 is a perspective cross-sectional view of the valve assembly fractured along the fracture line AA in Figure 3, with the pressure relief system in the open position.

[0011] [Figure 6] Figure 6 shows a side view of another valve assembly including a pressure regulating system, according to at least one non-limiting aspect of the present disclosure.

[0012] [Figure 7] Figure 7 is a cross-sectional view of the valve assembly from Figure 6, fractured along the fracture line BB, with the pressure regulating system in the open position.

[0013] [Figure 8] Figure 8 is a perspective cross-sectional view of the valve assembly fractured along the fracture line BB in Figure 6, with the pressure regulating system in the closed position.

[0014] [Figure 9] Figure 9 shows a method for relieving pressure within a valve assembly according to at least one non-limiting aspect of the present disclosure.

[0015] Corresponding reference numerals indicate corresponding parts across multiple figures. The examples described herein illustrate various aspects of the invention in one form, and such examples should not be construed as limiting the scope of the invention in any way. [Modes for carrying out the invention]

[0016] Various specific details are provided to provide a full understanding of the overall structure, function, manufacture, and use of the embodiments described in this disclosure and illustrated in the accompanying drawings. Well-known operations, components, and elements are not described in detail so as not to obscure the embodiments described herein. Readers will understand that the embodiments described and illustrated herein are non-limiting examples, and therefore the specific structural and functional details disclosed herein may be representative and illustrative. Variations and modifications thereof may be made without departing from the claims. Furthermore, terms such as “front,” “rear,” “left,” “right,” “up,” and “down” are for convenience only and should not be construed as limiting terms.

[0017] Before describing various aspects of apparatus, systems, and methods for establishing fluid connections with gender-agnostic actuators, it should be noted that exemplary embodiments are not limited to application or use to the details disclosed in the accompanying drawings and description. It will be understood that exemplary embodiments may be implemented or incorporated in other aspects, variations, and modifications, and may be implemented or performed in a variety of ways. Furthermore, unless otherwise stated, the terms and expressions used herein are selected for the purpose of illustrating exemplary embodiments for the convenience of the reader and are not intended to be limiting.

[0018] As used herein, the term "machine" can include any device suitable for use in accordance with the technologies, methods, and systems of the present disclosure. Examples of "machines" as used herein include, but are not limited to, lubrication systems, engines, diesel engines, large diesel engines, motors, rotating devices, generators, aircraft engines, emergency machines, emergency generators, compressors, devices including machines (e.g., mining devices, construction devices, marine devices, aircraft, etc.), and many other machines. As described in various places of the present disclosure, the "engine" as an example is used for the convenience of disclosure when explaining various embodiments and aspects of the present invention. However, it will be understood by those skilled in the art that such use of the "engine" as an example of a type of machine is merely intended for the convenience of disclosure and is not necessarily intended to limit the scope of the present invention.

[0019] Another example of a machine is a "fluid reservoir system", which may include any reasonable combination of fluid components such as fluid reservoirs, valves, pumps, and / or other components suitable for incorporation into a fluid reservoir system.

[0020] As used herein, the term "discharge" as applied to the systems and methods disclosed herein can include the discharge of any portion of the fluid of a machine, receptacle, reservoir, or other similar fluid holding system or device. Similarly, the term "replenishment" as applied to the systems and methods disclosed herein can include the replenishment of any portion of the fluid volume of a machine, receptacle, reservoir, or other similar fluid holding system or device.

[0021] As used herein, the term "valve system" as applied to the systems and methods disclosed herein can include any combination of valves, pipes, disconnects, adapters, and other similar structural components configured to perform one or more fluid replenishment and / or fluid discharge processes.

[0022] Examples of valves included in a valve system include, but are not limited to, single position valves, multi-position valves (e.g., junction block assemblies or five-way control valves, etc.), mechanical valves, electronic valves, electromechanical valves, and / or other types of valves with or without electronic control for actuating various possible open or closed positions of such valves.

[0023] It can be understood that, for various embodiments of the systems and methods discussed herein, where suitable and applicable, various components, structures, elements, and other configurations can be applied or installed in locations considered to be external or internal to the operation of a particular machine. For example, in the relevant portions of this specification where the use of pumps and / or auxiliary pumps is disclosed, such pumps can be arranged, installed, or operated as internal components of the machine and / or as external components that assist the function of the machine or operate in conjunction with the function of the machine in other ways. For example, in certain embodiments, an auxiliary pump or other engine component can be considered to be "onboard" the machine.

[0024] As used herein, the terms "type" or "kind" with respect to the various fluids discussed herein are intended to distinguish different types or kinds of fluids from one another. For example, oil is considered one "type" of fluid, transmission fluid is considered a different "type" of fluid, and hydraulic fluid is considered a different "type" of fluid. For example, it should be noted that a certain "type" of used fluid is not considered different from the same "type" of clean or fresh fluid (e.g., clean oil used in a machine's fluid replenishment or replacement process is not considered a different "type" of fluid from the used oil drained from the machine during the fluid discharge process).

[0025] Many industrial machines and devices require fluid changes. Examples of such fluid changes include oil changes in motors and engines, and hydraulic fluid changes in presses and lifting equipment. There are countless other examples, but a common factor among these machines and devices is that the discharge ports are located in inconvenient places. Generally, this is because the fluid must be removed from a sump or drain point at the bottom of the machine in order to utilize gravity flow.

[0026] When dealing with fluid systems, it will become even clearer that maintaining the desired operating pressure is crucial for the safe operation of the machinery. For example, machinery such as engines (e.g., diesel engines, internal combustion engines) generally use fluids such as oil for lubrication and for smooth and efficient operation. Apart from lubrication during operation, lubricating the machinery at or before starting can beneficially reduce the load placed on the engine by the relatively high compression ratio required to produce combustion, thereby improving the lifespan of the machinery. Certain devices and / or systems, including those disclosed by U.S. Patent No. 9,523,296 (title: VALVE ASSEMBLY FOR MACHINE FLUID OPERATIONS) (issued December 20, 2016) and U.S. Patent No. 4,502,431 (title: PRE-COMBUSTION ENGINE LUBRICATION SYSTEM) (issued March 5, 1985), whose disclosures are incorporated herein by reference in their entirety, can help achieve such results. Such a device can provide auxiliary pre-lubrication to the engine and can initiate fluid circulation before the main unit or the engine itself is in operation.

[0027] However, maintaining proper fuel pressure in any device or system connected to a machine's engine is crucial for achieving optimal engine performance, fuel efficiency, and emissions control. For example, exceeding the optimal pressure in the crankcase can negatively impact exhaust gas recirculation, cause leaks around oil seals and piston rings, and shorten engine life. Therefore, devices, systems, and methods are needed to regulate and mitigate fluid pressure through auxiliary engine devices.

[0028] Referring here to Figure 1, a fluid system 100 is shown, according to at least one non-limiting aspect of the present disclosure, which includes a valve assembly 106 configured to regulate and / or relieve pressure during the performance of an auxiliary fluid service of a machine 102. According to the non-limiting aspect of Figure 1, the fluid system 100 may include, among other components, the machine 102, the valve assembly 106, one or more fluid components 108, and / or the pump 104. The machine 102, the valve assembly 106, one or more fluid components 108, and / or the pump 104 may be arranged to fluidly communicate with each other via fluid interfaces such as quick-disconnect connectors, cam locks, barbed connectors, friction-fit connectors, clamp connectors, and / or other connections configured for user-friendly connection. Furthermore, the machine 102 may be configured for commercial and / or industrial use, for example. For example, the machine 102 in the fluid system 100 of Figure 1 may include an engine (e.g., a diesel engine, an internal combustion engine, etc.). However, it should be understood that, according to other non-limiting embodiments, the fluid system 100 of Figure 1 may include other machines 102 that require periodic fluid service.

[0029] It should be understood that the valve assembly 106 of the fluid system 100, more specifically the valve assembly 106 of the system 100, allows the user to complete multiple fluid services of the machine 102 through a single interface. The mechanical shape of the machine 102 is complex and difficult to access. However, as will be further illustrated with reference to Figure 2, the valve assembly 106 of the fluid system 100 provides a single accessible interface through which the user can connect the pump 104 and one or more fluid components 108 to the machine 102, thereby facilitating the execution of various fluid services. Thus, the fluid system 100 promotes efficiency and safety by eliminating the need for the fluid components 108 and / or the pump 104 to be inconveniently positioned relative to the machine 102. Other advantages provided by the system 100 include leak mitigation, ease of measurement (e.g., dipstick readings), contamination control, and accessibility.

[0030] As previously explained, the fluid system 100 in Figure 1 may include a pump 104, a fluid component 108, and a valve assembly 106, which can be configured together to perform various fluid services (e.g., fluid discharge, fluid purging, fluid replenishment, etc.) in the machine 102. The fluid component 108 may include, for example, at least one of the following: an auxiliary filter, a fluid reservoir, a sampling device, a flow control device (e.g., a bracket or retractable bracket, etc.), a quick-disconnect structure or other coupling, or other components, devices, or any other system suitable for servicing the machine 102. Of course, the configuration of the particular system 100 in Figure 1 is not limiting, and in other non-limiting embodiments, the function provided by one component of the system 100 (e.g., the pump 104) may be adequately provided by other components (e.g., the fluid component 108). For example, according to one non-limiting embodiment, the function provided by the pump 104 in Figure 1 may be alternately provided by the fluid component 108 (e.g., a sampling device, etc.), and vice versa. In other non-limiting embodiments, as disclosed in U.S. Patents 6,216,732, 6,708,710, 7,150,286, 9,062,575 and 9,523,296, the fluid component 108 of system 100 in Figure 1 may include a purge, discharge, replenishment, and timestamp system (such as the PERT system available from RPM Industries, LLC), a fluid discharge and replenishment system (such as the QuickFit system available from RPM Industries, LLC), a fluid discharge and replenishment system (such as the QuickEvac system available from RPM Industries, LLC), or a plurality of fluid discharge and replenishment systems (such as the MultiVac system available from RPM Industries, LLC).

[0031] Continuing with the reference to Figure 1, in some non-limiting embodiments, system 100 may further include an internal data module 120 operably associated with machine 102 to receive, store, and / or process data related to the functions performed by the fluid system 100. Furthermore, according to the non-limiting embodiments of Figure 1, system 100 may further include a control module 110 operably associated with various components of the fluid system 100. The control module 110 may include a processor for executing various commands within various components of the fluid system 100, including valve assembly 106, and for directing their functions. In addition or alternatively, the control module 110 may be configured to receive and process data from one or more components of the fluid system 100, including input from sensor 112. Thus, it will be understood that the control module 110 may be configured to monitor conditions and / or parameters of the fluid system 100, including, among other things, temperature, pressure, voltage, current, fluid contaminants, cycle time, and / or flow rate, among conditions and / or parameters related to the operation of the fluid system 100.

[0032] In some non-limiting embodiments, the control module 110 of the system 100 in Figure 1 may be configured to provide warnings or notifications related to the status and / or function associated with the system 100. Such indicators may be audible, tactile, visual, or audiovisual and may be provided directly via an indicator 114 integrated with the control module 110, or via a peripheral device 116 (e.g., a screen, computer, smartphone, tablet, etc.) communicably connected to the control module 110. It will also be understood that the control module 110 may be controlled via a user interface accessed via the indicator 114 and / or the peripheral device 116. The control module 110 may also include one or more data storage media for storing, retrieving, and / or reporting data communicated to the control module 110. The data stored in the data storage media may include various data collected from the status of the fluid system 100, and may include, for example, but not limited to, the status of the fluid, the number of contaminant particles, and cycle time data for the time to discharge or replenish a given reservoir, fluid receptacle, or other fluid storage / holding medium.

[0033] As previously described, the system 100 in Figure 1 can be configured to establish fluid communication between various system components in order to perform fluid services for the machine 102. For example, in some non-limiting embodiments, the machine 102 may be connected to the pump 104, fluid component 108, and valve assembly 106, as shown in the figure. The pump 104 may include, for example, an auxiliary lubrication pump or a pre-lubrication pump and may be located integrally with, in close proximity to, or at a distance from the machine 102. In some non-limiting embodiments, the fluid system 100 may be configured to perform a fluid discharge process for the machine 102, in which case the pump 104 will operate to discharge fluid from the machine 102. In other non-limiting embodiments, the fluid system 100 may be used to perform a fluid purging process, in which the pump 104 will operate in conjunction with the fluid component 108 (e.g., an auxiliary filter) to clean the fluid within the machine 102. In other non-limiting embodiments, the system 100 can be used to perform a fluid filling process, and the pump 104 can be operated to introduce new unused fluid from the reservoir into the machine 102. It should be understood that when performing a fluid service on the machine 102, as will be explained in more detail with reference to Figures 2A-C, the fluid component 108 can supply pressure (either positive or negative pressure, depending on the specific service and / or equipment) to the valve assembly 106.

[0034] Referring to Figures 2A–C, perspective, side, and cross-sectional views of the valve assembly 106 of system 100 in Figure 1 are shown, respectively, according to at least one non-limiting aspect of the present disclosure. According to the non-limiting aspects of Figures 2A–C, the valve assembly 106 may include a pressure relief system 208 and a pressure regulating system 210, as shown in the cross-sectional view of Figure 2C. The cross-sectional view of Figure 2C is broken along line CC, as shown in the side view of Figure 2B. The pressure relief system 208 is described in more detail with reference to Figures 3–5, and the pressure regulating system 210 is described in more detail with reference to Figures 6–8.

[0035] While the valve assembly 106 in Figure 2 includes both a pressure relief system 208 and a pressure regulating system 210, this disclosure intends other non-limiting embodiments, and it should be understood that the valve assembly 106 may include either the pressure relief system 208 or the pressure regulating system 210. For example, according to non-limiting embodiments of Figures 3-5, another valve assembly 306 may include only the pressure relief system 208 of Figure 2. Similarly, according to non-limiting embodiments of Figures 6-8, another valve assembly 606 may include only the pressure regulating system 210 of Figure 2. In any case, it should be understood that this disclosure intends several non-limiting embodiments in which either the pressure relief system 208 or the pressure regulating system 210 is employed to manage and control the pressure within the valve assembly 106, and several non-limiting embodiments in which both the pressure relief system 208 and the pressure regulating system 210 are employed to manage and control the pressure within the valve assembly 106.

[0036] According to an unrestricted embodiment of Figure 2, the valve assembly 106 may include inlet / outlet ports 202 that can be connected to one or more components of the fluid system 100 in Figure 1. Understand that during the fluid service provided by the fluid system 100 (Figure 1), fluid (e.g., oil, detergent, air, etc.) may enter the valve assembly 106 from the fluid system 100 (Figure 1) through the inlet / outlet ports 202. The valve assembly 106 may further include a mechanical reservoir port 204 configured to establish fluid communication between the fluid system 100 (Figure 1) and a part of the machine 102 (Figure 1), such as the engine crankcase or sump, via the valve assembly 106. The valve assembly 106 may further include a filter port 206 configured to establish fluid communication between the fluid system 100 (Figure 1) and a filter of the machine 102 (Figure 1) via the valve assembly 106. Each of the ports 202, 204, and 206 of the valve assembly 106 may include a fluid interface configured for user-friendly connections, including interfaces for quick-disconnect connectors, camlocks, barbed connectors, friction-fit connectors, and / or clamp connectors.

[0037] As shown in Figure 2, the valve assembly 106 may include an actuation mechanism 212, including a support, a spring, and a ball, similar to the actuation mechanism described in U.S. Patent No. 9,523,296, issued December 20, 2016, entitled “VALVE ASSEMBLY FOR MACHINE FLUID OPERATIONS” (the entire disclosure of which is incorporated herein by reference). The ball of the actuation mechanism 212 may be made of, for example, polypropylene or other suitable material that can establish a fluid seal when in contact with a surface. Specifically, the actuation mechanism 212 may be configured to respond to pressure changes within the valve assembly 106. In response to such pressure changes, the actuation mechanism 212 may move alternately between a normally closed position and an open position, and the ball moves toward the inlet / outlet port 202 to establish a fluid communication path between the fluid system 100 (Figure 1) and the mechanical reservoir port 204.

[0038] For example, during fluid discharge operation, negative pressure is applied to the inlet / outlet port 202 of the valve assembly 106 in Figure 2 by the pump 108 (Figure 1) or the fluid component 108 connected to the valve assembly 106. In response to the negative pressure, the spring of the actuation mechanism 212 is compressed, and the ball of the actuation mechanism 212 moves from the mechanical reservoir port 204 toward the inlet / outlet port 202, eventually reaching the open position. In the open position, the actuation mechanism 212 establishes fluid communication between the inlet / outlet port 202, i.e., the fluid system 100 in Figure 1, and the mechanical reservoir port 204. Thus, the fluid can flow through the mechanical reservoir port 204 through the valve assembly 106 and out through the inlet / outlet port 202. Therefore, during the fluid discharge operation performed by the system 100 in Figure 1, used or contaminated oil can be removed from the reservoir (e.g., sump) of the machine 102 (Figure 2) by using the pump 104 and / or fluid component 108 to discharge from the reservoir through the machine reservoir port 204 and the inlet / outlet ports 202 of the valve assembly 106. In some non-limiting embodiments, the fluid flow from the filter port 206 through the valve assembly 106 may be restricted via a check valve associated with the filter port 206, which closes in response to the negative pressure provided by the pump 104 (Figure 1).

[0039] Alternatively, during a fluid replenishment operation, a positive pressure may be applied at the inlet / outlet port 102 by a pump 108 (Figure 1) or fluid component 108, etc., while simultaneously connecting to the valve assembly 106. In response to the positive pressure, the spring of the actuation mechanism 212 extends so that the ball moves away from the inlet / outlet port 202 toward the mechanical reservoir port 204, establishing a substantial fluid seal and preventing fluid from flowing into the reservoir of machine 102 (Figure 1) through the mechanical reservoir port 204. Instead, a fluid communication is established between the inlet / outlet port 202 and the filter port 206, facilitating fluid flow through one or more mechanical filters connected to the filter port 206. Thus, during a fluid replenishment operation, clean or new fluid can be supplied to the filter of machine 102 (Figure 1) from the inlet / outlet port 202 through the filter port 206 using the pump 104 (Figure 1) and / or fluid component 108 (Figure 1).

[0040] Referring to Figure 3, a side view of another valve assembly 300, including the pressure relief system 218 of Figure 2, is shown according to at least one non-limiting aspect of the present disclosure. According to the non-limiting aspect of Figure 3, a side view of the valve assembly 300 including the inlet / outlet port 202 is shown. The mechanical reservoir port 204 is not visible in the side view of Figure 3. However, the break line AA of the cross-sectional view of Figure 4 is drawn on the side view of Figure 3.

[0041] Referring to Figure 4, a cross-sectional view of the valve assembly 300 broken along line AA shown in the side view of Figure 3, the pressure relief system 208 is in the closed position. According to an unrestricted embodiment of Figure 4, the pressure relief system 208 of the valve assembly 300 may include a housing 212. A poppet 214 is located within the housing and is configured to transition between a closed position within the housing 212 and an open position where the poppet 214 protrudes from the housing 212. According to Figure 4, the poppet 214 is in the closed position. The poppet 214 may include, for example, an opening 216 defined therein, which can establish fluid communication between the internal cavity defined by the valve assembly 300 and the mechanical reservoir port 204. Furthermore, a first spring 222 may be located within the housing and positioned around the poppet 214. The first spring 222 may have a first spring constant configured to bias the poppet 214 to the closed position, as shown in Figure 4.

[0042] In a non-limiting embodiment of Figure 4, the valve assembly 300 may further include an operating mechanism similar to that described in U.S. Patent No. 9,523,296, issued December 20, 2016, entitled “VALVE ASSEMBLY FOR MACHINE FLUID OPERATIONS” (the entire disclosure of which is incorporated herein by reference). For example, the housing 212 may be spherical in shape and seat in the seat of a valve connected to the internal cavity of the valve assembly 300 and the mechanical reservoir port 204. The housing 212 may include a polymer such as polypropylene and / or another suitable material. The operating mechanism may further include a strut assembly 218 fixed in the internal cavity defined by the valve assembly 300, around which a second spring 220 may be positioned. The second spring 220 may have a second spring constant configured to bias the housing 212 to the closed position, as shown in Figure 4. Specifically, Figure 4 shows the housing 212 in a seated, and therefore closed, position. However, the operating mechanism may be configured to respond to pressure changes within the valve assembly 300. In response to such pressure changes (e.g., during the exhaust process), the housing 212 may move from the closed position, as shown in Figure 5, to an open position, where the housing 212 moves toward the inlet / outlet port 202, thereby establishing fluid communication from the mechanical fluid reservoir port 204 to the inlet / outlet port 202. According to some non-limiting embodiments, such pressure may occur when one or more types of couplings, such as a quick-disconnect device, are mechanically connected to one or more of the various ports 202, 204, and 206.

[0043] Referring to Figure 5, a perspective cross-sectional view of the valve assembly 300 of Figure 3 is shown, with the pressure relief system 208 in the open position. In a non-limiting embodiment of Figure 5, when the pressure in the mechanical reservoir port 204 of the valve assembly 300 becomes stronger than the force generated by the biasing of a first spring constant and / or the force generated by the biasing of a second spring constant, the poppet 214 moves from the closed position shown in Figure 4 to the open position shown in Figure 5. In the open position, the poppet 214, more specifically the opening 216, protrudes from the housing 212. Thus, the opening 216 establishes fluid communication between the internal cavity defined by the valve assembly 300 and the mechanical reservoir port 204, allowing fluid to exit the internal cavity defined by the valve assembly 300 and enter a mechanical reservoir (e.g., the crankcase of an engine) through the mechanical reservoir port 204. It will be understood that the pressure required to move the poppet 214 from the closed position to the open position is generated by a restriction either within or upstream of the valve assembly 300, resulting in excessive pressure in or around the mechanical reservoir port 204 and / or being supplied through the inlet / outlet ports 202 of the valve assembly 300.

[0044] In other words, when the opening 216 protrudes from the housing 212, excess pressure accumulating within the valve assembly 300 is relieved by allowing fluid access to the mechanical reservoir port 204 and providing an outlet that complements the filter port 206. Thus, the pressure relief system 208 of the valve assembly 300 can prevent damage to the machine due to excess pressure and / or fluid, and can realize the benefits associated with the use of the valve assembly 300 while protecting the machine from excess pressure in the mechanical reservoir (e.g., engine crankcase).

[0045] Referring to Figure 6, a side view of another valve assembly 600 including the pressure regulating system 210 of Figure 2, according to at least one non-limiting aspect of the present disclosure. In the non-limiting aspect of Figure 6, a side view of the valve assembly 600 including the inlet / outlet port 202 is shown. Thus, the mechanical reservoir port 204 is not visible in the side view of Figure 6. However, a line BB is drawn in the side view of Figure 6, and the cross-sectional view of Figure 7 is broken along this line.

[0046] Referring to Figure 7, a cross-sectional view of the valve assembly 600 of Figure 6, fractured along the fracture line BB, with the pressure regulating system 210 in the open position. According to a non-limiting embodiment of Figure 7, the pressure regulating system 210 includes a plunger head 230 mechanically coupled to a first base 228 fixed to a plunger base 232 via a shaft 224. The plunger base 232 may be mechanically coupled to a third spring 226 having a third spring constant. The plunger head 230 is configured to seat on a plunger head seat 234, but as shown in Figure 7, the third spring constant is set to bias the plunger head 230 to the open position. Nevertheless, the plunger head 230 is configured to move between the open position in Figure 7 and the closed position as shown in Figure 8 in response to pressure changes in the internal cavity defined by the valve assembly 600.

[0047] For example, according to a non-limiting embodiment of Figure 7, pressure may build up inside the machine 102 during fluid operations (e.g., filling, purging, etc.). This pressure may pass through the filter port 206 of the valve assembly 600 and begin to interact with the plunger head 230. When the pressure exceeds the biasing force of the third spring constant, the plunger head 230 begins to move from the open position shown in Figure 7 to the closed position shown in Figure 8. In the open position, the plunger head 230 is not seated, so the fluid can flow between the plunger head seat 234 and the plunger head 230 and enter the filter of the machine 102 (Figure 1) through the filter port 206. However, when the pressure builds up and the biasing force of the third spring constant is overcome, the open space between the plunger head seat 234 and the plunger head 230 begins to decrease, thereby restricting the flow and regulating the amount of fluid that can enter the filter port 206. This helps to manage and control the pressure inside the machine 102 (Figure 1). Once the biasing force provided by the spring constant of the third spring 226 is completely overcome, the plunger head 230 moves to a closed position where the plunger head 230 is fully seated on the plunger head seat 234, establishing a fluid seal and preventing the fluid flow from passing through the filter port 206. The closed position of the pressure regulating system 210 is shown in Figure 8.

[0048] Continuing to refer to Figure 7, the third spring 226 may be mechanically coupled to the spring base 228, which may be mechanically coupled to the set screw 222. It should be understood that by rotating the set screw 222, the spring base 228 can be moved closer to and / or away from the plunger base 232, depending on the direction of rotation of the set screw 222. As the spring base 228 moves closer to the plunger base 232 in response to the rotation of the set screw 222, the spring constant of the third spring 226 increases. The higher the spring constant of the third spring 226, the higher the pressure required to overcome the biasing force provided by the third spring 225. This means that the pressure regulating system 210 becomes less sensitive to the pressure within the machine 102 introduced through the filter port 206, etc. Conversely, the lower the spring constant of the third spring 226, the less pressure is required to overcome the biasing force provided by the third spring 225. This means that the pressure regulating system 210 becomes more sensitive to the pressure within the machine 102 introduced through the filter port 206, etc. Thus, the sensitivity of the valve assembly 600, and in particular the pressure regulating system 210, can be customized according to the user's specific preferences and / or requirements.

[0049] Referring to Figure 8, which is a perspective cross-sectional view of the valve assembly of Figure 6 broken along line BB, the pressure regulating system 210 is in the closed position. As previously mentioned, the pressure in machine 102 (Figure 1) exceeds and is overcome by the threshold defined by the force resulting from the biasing of the third spring constant. Accordingly, the pressure causes the plunger head 230 to reach its closed position, and the plunger head 230 properly seats in the plunger head seat 234 and is sealed to the plunger head seat 234. Thus, there is no more empty space between the plunger head seat 234 and the plunger head, through which fluid can flow through the filter port 206, which helps to manage and control the pressure in machine 102 (Figure 1). When the fluid in machine 102 (Figure 1) is placed in a machine reservoir (e.g., a sump) or outside machine 102 (Figure 1), the pressure begins to decrease. As a result, the biasing force provided via the third spring 226 moves the plunger head 230 again from the closed position in Figure 8 to the open position in Figure 7.

[0050] In other words, the pressure regulating system 210 in Figures 6-8 regulates the pressure accumulating within the machine 102 (Figure 1) by restricting fluid access to the filter port 206 in proportion to the pressure generated within the machine 102 (Figure 1). Thus, the pressure regulating system 210 of the valve assembly 600 enables the benefits of using the valve assembly 600 while protecting the machine from excessive pressure in the machine reservoir (e.g., the engine crankcase).

[0051] As previously stated, this disclosure envisions a non-limiting embodiment (e.g., valve assembly 106 in Figure 2) in which the pressure relief system 208 in Figures 3-5 and the pressure regulating system 210 in Figures 6-8 are used simultaneously. According to such a non-limiting embodiment, the pressure regulating system 210 can dynamically regulate the pressure and eventually open again when the pressure in the machine 102 (Figure 1) decreases. However, as long as the pressure regulating system 210 is in the closed position, the pressure in the internal cavity defined by the valve assembly 106 (Figure 2) can be relieved via the pressure relief system 208 (Figures 3-5). In other words, when the pressure in the machine 102 (Figure 1) moves the pressure regulating system 210 from the open position to the closed position, the pressure in the internal cavity defined by the valve assembly 106 (Figure 2) can increase. This is especially true when the fluid is still being supplied through the inlet / outlet ports 202. Consequently, the biasing force provided by the first spring constant is overcome, and the poppet 214 moves from the closed position (Figure 4) to the open position (Figure 5), thereby relieving the pressure in the internal cavity defined by the valve assembly 106 (Figure 2). However, as the pressure in the machine 102 (Figure 1) is regulated by the pressure regulating system 210 and begins to weaken, the biasing force provided by the first spring constant moves the poppet 214 from the open position (Figure 5) to the closed position (Figure 4). With the pressure relief system 208 closed and the pressure regulating system 210 open, the fluid process (e.g., filling process, purging process, etc.) can resume normal operation.

[0052] Furthermore, this disclosure envisions embodiments in which the aforementioned springs are manufactured from piezoelectric material so that the biasing force can be electrically customized. Accordingly, valve assemblies including the pressure relief and adjustment system disclosed herein can be implemented in various machines 102 (Figure 1), each potentially having different pressure sensitivities. This customization can be automated, eliminating the need for additional setup time and costs. Accordingly, it will be understood that the valve assemblies disclosed herein may be communicably connected to a control circuit (e.g., wired and / or wirelessly) and capable of remote and / or autonomous operation.

[0053] Referring to Figure 9, a method 900 for controlling pressure within a valve assembly is shown according to at least one non-limiting aspect of this disclosure. It should be understood that the method 900 of Figure 9 can be carried out via any of the valve assemblies, pressure relief systems, and / or pressure regulating systems disclosed herein. Furthermore, it should be understood that, according to several non-limiting aspects, any step of the method 900 of Figure 9 can be carried out independently of other steps. Furthermore, according to other non-limiting aspects, the steps of the method 900 of Figure 9 may be supplemented by other steps based on the functions described with reference to the valve assemblies, pressure relief systems, and / or pressure regulating systems disclosed herein. According to several non-limiting aspects, one or more steps of the method 900 of Figure 9 may be carried out autonomously via a control circuit communicatively connected to the valve assemblies, pressure relief systems, and / or pressure regulating systems disclosed herein.

[0054] According to an unspecified embodiment of Figure 9, method 900 may include initiating a fluid process in a machine via a valve assembly 902. For example, the fluid process may include filling, purging, and / or discharge processes in which a fluid (e.g., air, oil, purging agent, etc.) is introduced into or removed from a filter and / or reservoir of machine 102 (Figure 1). Method 900 may further include regulating the pressure within the machine during the fluid process via a pressure regulating system 904. Regulating 904 may include generating sufficient pressure within the machine to overcome the biasing force of the spring in the pressure regulating system, thereby moving the pressure regulating system from an open position to a closed position.

[0055] Referring further to Figure 9, method 900 may further include relieving the pressure in the valve assembly during the fluid process via a pressure relief system 906. Adjustment 904 may include generating sufficient pressure in the valve assembly to overcome the spring biasing force of the pressure relief system, thereby moving the pressure relief system from the closed position to the open position. Method 900 may further include completing the fluid process in the machine 908.

[0056] Various aspects of the subject matter described herein are described in the following numbered sections.

[0057] Item 1: A valve assembly configured to perform a fluid service of a machine, the valve assembly comprising: an inlet / outlet port that fluidly connects a fluid component to an internal cavity defined by the valve assembly; a filter port that fluidly connects the internal cavity to a filter of the machine; and a pressure regulating system, the pressure regulating system comprising: a plunger head configured to move between an open position and a closed position; a plunger head seat, the plunger head and the plunger head seat configured as a whole to define an opening between the internal cavity and the filter port in the open position, and the plunger head and the plunger head seat configured as a whole to establish a fluid seal between the internal cavity and the filter port in the closed position; and a spring having a spring constant, the spring constant being set to be overcome in response to a predetermined pressure in the machine.

[0058] Item 2: The valve assembly according to Item 1, wherein the plunger head is mechanically coupled to the plunger base, and the spring is mounted on a spring base and positioned between the spring base and the plunger base.

[0059] Item 3: A valve assembly according to either Item 1 or 2, further comprising a set screw, the set screw being configured to rotate, the rotation of the set screw being configured to change the spring constant of the spring, the changed spring constant being configured to overcome in accordance with a second predetermined pressure in the machine.

[0060] Item 4: A valve assembly according to any of items 1 to 3, wherein the modified spring constant is greater than the aforementioned spring constant, and the second predetermined pressure is higher than the aforementioned predetermined pressure.

[0061] Item 5: A valve assembly according to any of Items 1 to 4, wherein the modified spring constant is smaller than the aforementioned spring constant, and the second predetermined pressure is lower than the aforementioned predetermined pressure.

[0062] Item 6: A valve assembly according to any one of items 1 to 5, configured to change the distance between the plunger base and the spring base by rotating the set screw.

[0063] Item 7: A valve assembly according to any one of items 1 to 6, wherein the plunger head is mechanically coupled to the plunger base via a shaft.

[0064] Item 8: A valve assembly according to items 1-7, further comprising a pressure relief system, the pressure relief system comprising a housing; a poppet defining an opening, the poppet being configured to move between a closed position in which the opening is housed within the housing and unable to transport fluid from the internal cavity to the mechanical reservoir port and an open position in which the opening protrudes beyond the housing and can transport fluid from the internal cavity to the mechanical reservoir port; and a spring having a spring constant, configured to bias the poppet to the closed position, the spring constant being set to be overcome in response to a predetermined pressure within the valve assembly.

[0065] Item 9: A valve assembly according to any one of items 1 to 8, further comprising an operating mechanism configured to move from a closed position to an open position in response to a third predetermined pressure in the internal cavity generated by a second fluid service performed by the machine.

[0066] Item 10: The valve assembly according to any one of items 1 to 9, wherein the housing is a component of the actuation mechanism and is configured to move from a closed position to an open position of the actuation mechanism in response to a third predetermined pressure generated by the second fluid service performed by the machine.

[0067] Item 11: The valve assembly described in any of items 1 to 10, wherein the housing has a spherical structure.

[0068] Item 12: A valve assembly according to any one of items 1 to 11, wherein the spring comprises a piezoelectric material, and an electrical stimulus of the piezoelectric material changes the spring constant.

[0069] Item 13: A valve assembly configured to perform a fluid service of a machine, the valve assembly comprising: an inlet / outlet port that fluidly connects a fluid component to an internal cavity defined by the valve assembly; a mechanical reservoir port that fluidly connects the internal cavity to a mechanical reservoir of the machine; and a pressure relief system, the pressure relief system comprising: a housing; a poppet defining an opening, the poppet being configured to transition between a closed position in which the opening is housed within the housing and unable to carry fluid from the internal cavity to the mechanical reservoir port and an open position in which the opening protrudes beyond the housing and can carry fluid from the internal cavity to the mechanical reservoir port; and a spring having a spring constant, the spring constant being set to be overcome in response to a predetermined pressure within the valve assembly.

[0070] Item 14: The valve assembly according to Item 13, further comprising an actuation mechanism configured to move from a closed position to an open position in response to a third predetermined pressure in the internal cavity generated by a second fluid service performed by the machine.

[0071] Item 15: The valve assembly according to either Item 13 or 14, wherein the housing is a component of an operating mechanism and is configured to move from a closed position to an open position of the operating mechanism in response to a third predetermined pressure generated by the second fluid service performed by the machine.

[0072] Item 16: A valve assembly according to any of items 13 to 15, wherein the housing has a spherical structure.

[0073] Item 17: A valve assembly according to any one of items 13 to 16, wherein the spring contains a piezoelectric material, and an electrical stimulus of the piezoelectric material changes the spring constant.

[0074] Item 18: A method for controlling pressure within a valve assembly, comprising: initiating a fluid process of a machine through the valve assembly; regulating a first pressure within the machine during the fluid process via a pressure regulating system; relieving a second pressure within the valve assembly during the fluid process via a pressure relief system; and completing the fluid process of the machine.

[0075] Item 19: The method of Item 18, wherein adjusting the first pressure in the machine involves overcoming the first biasing force of the first spring of the pressure regulating system to move the pressure regulating system from an open position to a closed position.

[0076] Item 20: The method according to either Item 18 or 19, wherein relieving the second pressure in the valve assembly includes overcoming the second biasing force of the second spring of the pressure relief system to move the pressure relief system from a closed position to an open position.

[0077] All patents, patent applications, publications, or other disclosures referenced herein are incorporated herein by reference in whole, as if each individual reference were explicitly incorporated by reference. All references and materials incorporated herein by reference, or any part thereof, are incorporated herein by reference only to the extent that the incorporated material does not conflict with existing definitions, descriptions, or other disclosures contained herein. To that extent, disclosures contained herein take precedence over conflicting materials incorporated herein by reference, and disclosures explicitly contained herein take precedence.

[0078] The present invention has been described in light of various exemplary and descriptive embodiments. The embodiments described herein are understood to provide exemplary features of various details of the various embodiments of the disclosed invention. Accordingly, unless otherwise specified, it is understood that, to the extent possible, one or more features, elements, components, parts, structures, modules, and / or embodiments of the disclosed embodiments may be combined with, separated, replaced, and / or rearranged with other features, elements, components, parts, structures, modules, and / or embodiments of one or more of the disclosed embodiments without departing from the scope of the disclosed invention. Accordingly, it will be recognized by those skilled in the art that any of the exemplary embodiments may be subjected to various substitutions, modifications, or combinations without departing from the scope of the invention. Furthermore, by examining this specification, those skilled in the art will recognize or, without going beyond ordinary trial and error, many equivalents of the various embodiments of the invention described herein. Accordingly, the present invention is not limited by the descriptions of various embodiments, but rather by the claims.

[0079] Those skilled in the art will generally recognize that the terms used herein, and in particular in the appended claims (e.g., the body of the appended claims), are generally intended to be “open” terms (for example, the term “includes” should be interpreted as “includes but not limited,” the term “has” should be interpreted as “at least has,” and the term “includes” should be interpreted as “includes but not limited,” etc.). If a particular number of descriptions are intended in an introduced claim, such an intention is explicitly stated in the claim, and if such a statement is not made, such an intention does not exist, as will be understood by those skilled in the art. For example, to aid understanding, the following appended claims may use the introductory phrases “at least one” and “one or more” to introduce the description of the claims. However, even if a claim includes an introductory phrase such as "one or more" or "at least one" and an indefinite article ("a" or "an"), the use of such a phrase should not be interpreted as meaning that the introduction of the claim by the indefinite article ("a" or "an") limits a particular claim containing such an introduction to a claim containing only one such introduction (for example, "a" and / or "an" should generally be interpreted as meaning "at least one" or "one or more"). The same applies to definite articles used to introduce claims.

[0080] Furthermore, even if a specific number of claims introduced is explicitly stated, a person skilled in the art will recognize that such a statement should generally be interpreted as meaning at least the number stated (for example, the unarticle statement “two statements” without other modifiers usually means at least two statements, or two or more statements). Moreover, when a notation similar to “at least one of A, B, and C, etc.” is used, such a construction is generally intended to mean that a person skilled in the art will understand this notation (for example, “a system having at least one of A, B, and C” includes, but is not limited to, a system having only A, only B, only C, A and B, A and C, B and C, and / or a system having A, B, and C, etc.). Where a notation similar to “at least one of A, B, or C” is used, it is generally intended that such a notation will be understood by those skilled in the art (for example, “a system having at least one of A, B, or C” includes, but is not limited to, systems having only A, only B, only C, A and B, A and C, B and C, and / or A, B, and C, etc.). As will be further understood by those skilled in the art, in the specification, claims, or drawings, separate words and / or phrases presenting two or more alternative terms should typically be understood to include the possibility of including one of the terms, either of the terms, or both, unless otherwise required by the context. For example, the expression “A or B” is usually understood to include the possibility of “A” or “B,” or “A and B.”

[0081] Those skilled in the art will understand that, with respect to the attached claims, the operations described herein may generally be performed in any order. Furthermore, while the claims are presented in order, it should be understood that various operations may be performed in any order other than those described, or simultaneously. Examples of such alternative orders include, unless otherwise indicated by the context, repetition, interleaving, interruption, reordering, incremental, preparation, supplementation, simultaneous, reverse, or other variant orders. Moreover, terms such as past tense adjectives like "corresponding to" or "related to" are generally not intended to exclude such variants unless otherwise indicated by the context.

[0082] It should be noted that any reference to “one aspect,” “a certain aspect,” “a certain example,” or “a certain example” means that the specific features, structures, or characteristics described in relation to that aspect are included in at least one aspect. Therefore, although the expressions “in one aspect,” “a certain aspect,” “a certain example,” and “a certain example” appear in various places throughout this specification, they do not necessarily all refer to the same aspect. Furthermore, specific features, structures, or characteristics can be combined in any suitable way in one or more aspects.

[0083] As used herein, the singular form includes the plural form unless otherwise clearly indicated by the context.

[0084] The directional terms used herein, for example, but not limited to, up, bottom, left, right, down, top, front, back, and their variations, relate to the orientation of the elements shown in the accompanying drawings and do not limit the scope of the claims unless otherwise expressly stated.

[0085] As used in this disclosure, the terms “about” or “approximately” mean, unless otherwise specified, an acceptable error to a particular value as determined by a person skilled in the art, which depends in part on how the value is measured or determined. In certain embodiments, the terms “about” or “approximately” mean within 1, 2, 3, or 4 standard deviations. In certain embodiments, the terms “about” or “approximately” mean within 50%, 200%, 105%, 100%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, or 0.05% of a given value or range.

[0086] In this specification, unless otherwise specified, all numerical parameters are understood to be preceded and modified in all cases by the term “approximately.” In this case, the numerical parameters have inherent variability specific to the underlying measurement techniques used to determine the numerical value of the parameters. At least, not as an attempt to limit the application of the doctrine of equivalents to the claims, each numerical parameter described herein should be interpreted by applying ordinary rounding techniques, at least in light of the number of significant figures reported.

[0087] Numerical ranges referred to herein include all subranges encompassed within the referred range. For example, the range "1 to 100" includes all subranges between (and including) the implicit minimum value of 1 and the implicit maximum value of 100, i.e., all subranges having a minimum value of 1 or more and a maximum value of 100 or less. Furthermore, all ranges referred to herein include the endpoints of the referred range. For example, the range "1 to 100" includes endpoints 1 and 100. The maximum numerical limit described herein is intended to include all subranges encompassed therein, and the minimum numerical limit described herein is intended to include all higher numerical limits encompassed therein. Accordingly, the applicant reserves the right to modify this specification, including the claims, to expressly describe any subranges encompassed within the expressly described ranges. All such ranges are essentially described herein.

[0088] Any patent applications, patents, non-patent publications, or other disclosures referenced herein and / or included in application data sheets are incorporated herein by reference, provided that the incorporated material does not conflict with this specification. To the extent necessary, disclosures expressly stated herein take precedence over any conflicting material incorporated herein by reference. Any material or any part thereof that is to be incorporated herein by reference that conflicts with existing definitions, descriptions, or other disclosures contained herein is incorporated only to the extent that it does not create a conflict between the incorporated material and the existing disclosures.

[0089] "Comprise" (and any form of "comprise," such as "comprises" or "comprising"), "have" (and any form of "have," such as "has" or "having"), "include" (and any form of "include," such as "includes" or "including"), and "contain" (and any form of "contains" or "containing") are open-ended linking verbs. As a result, a system that "comprises," "has," "includes," or "contains" one or more elements possesses one or more of those elements, but is not limited to possessing only one or more of them. Similarly, an element of a system, device, or apparatus that "comprises," "has," "includes," or "contains" one or more features possesses one or more of those features, but is not limited to possessing only one or more of them.

[0090] Instructions used to program logic to perform the various embodiments disclosed may be stored in system memory such as dynamic random access memory (DRAM), cache, flash memory, or other storage. Furthermore, instructions may be distributed over a network or by other computer-readable media. Thus, machine-readable media may include any mechanism for storing or transmitting information in a form readable by a machine (e.g., a computer). This includes, but is not limited to, floppy disks, optical disks, compact disks, read-only memory (CD-ROM), magneto-optical disks, read-only memory (ROM), random access memory (RAM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic or optical cards, flash memory, or tangible machine-readable storage (e.g., carrier waves, infrared signals, digital signals, etc.) used for transmitting information over the Internet via electrically, optical, acoustic, or other forms of propagated signals. Therefore, non-transient computer-readable media include all types of tangible machine-readable media suitable for storing or transmitting electronic instructions or information in a form readable by a machine (e.g., a computer).

[0091] Where used in any aspect of this specification, the term “control circuit” may mean, for example, hardwired circuits, programmable circuits (e.g., computer processors, processing units, processors, microcontrollers, microcontroller units, controllers, digital signal processors (DSPs), programmable logic devices (PLDs), programmable logic arrays (PLAs), or field-programmable gate arrays (FPGAs) including one or more individual instruction processing cores), state machine circuits, firmware that stores instructions executed by programmable circuits, and any combination thereof. Control circuits may be embodied collectively or individually as circuits that form part of a larger system, such as an integrated circuit (IC), an application-specific integrated circuit (ASIC), a system-on-a-chip (SoC), a desktop computer, a laptop computer, a tablet computer, a server, a smartphone, etc. Accordingly, the term "control circuit" as used herein includes, but is not limited to, an electrical circuit having at least one discrete electrical circuit, an electrical circuit having at least one integrated circuit, an electrical circuit having at least one application-specific integrated circuit, an electrical circuit forming a general-purpose computing device configured by a computer program (e.g., a general-purpose computer configured by a computer program that at least partially executes the processes and / or devices described herein, or a microcontroller configured by a computer program that at least partially executes the processes and / or devices described herein), an electrical circuit forming a memory device (e.g., in the form of random-access memory), and / or an electrical communication device (e.g., a modem, a communication switch, or an optical-electrical device). Those skilled in the art will recognize that the subject matter described herein can be implemented in analog or digital manner, or in any combination thereof.

[0092] As used in any aspect of this specification, the term “logic” may refer to an app, software, firmware, and / or circuit configured to perform any of the operations described above. Software may be embodied as software packages, code, instructions, instruction sets, and / or data recorded on a non-transient computer-readable storage medium. Firmware may be embodied as code, instructions, instruction sets, and / or data hardcoded (e.g., non-volatile) on a memory device.

[0093] As used in any aspect of this specification, terms such as “component,” “system,” and “module” may refer to any computer-related entity of hardware, a combination of hardware and software, software, or software in operation.

[0094] As used in any aspect of this specification, “algorithm” means a self-consistent set of steps that lead to a desired result, and “step” means an operation of physical quantities and / or logical states that can take the form of electrical or magnetic signals that are, though not necessarily, memorable as used in any aspect of this specification, “algorithm” means a self-consistent set of steps that lead to a desired result, and “step” means an operation of physical quantities and / or logical states that can take the form of electrical or magnetic signals that are memorable, memorable, memorable, memorable, as is not necessarily required.

[0095] The network may include a packet-switched network. Communication devices may communicate with each other using a selected packet-switched network communication protocol. One example of a communication protocol may include the Ethernet communication protocol, which may allow communication using the Transmission Control Protocol / Internet Protocol (TCP / IP). The Ethernet protocol conforms to or is compatible with the Ethernet standard, and / or later versions thereof, published by the Institute of Electrical and Electronics Engineers (IEEE) in December 2008 and titled "IEEE 802.3 Standard". Alternatively or additionally, communication devices may communicate with each other using the X.25 communication protocol. The X.25 communication protocol conforms to or is compatible with standards published by the International Telecommunication Union Telecommunication Standardization Sector (ITU-T). Alternatively or additionally, communication devices may communicate with each other using the Frame Relay communication protocol. The Frame Relay communication protocol conforms to or is compatible with standards published by the International Telecommunication Consultative Committee (CCITT) and / or the American National Standards Institute (ANSI). Alternatively, or additionally, transceivers can communicate with each other using the Asynchronous Transfer Mode (ATM) communication protocol. The ATM communication protocol conforms to or is compatible with the ATM standard titled "ATM-MPLS Network Interworking 2.0," published by the ATM Forum in August 2001, and / or later versions of this standard. Of course, different and / or later developed connection-oriented network communication protocols are also assumed herein.

[0096] As is evident from the foregoing disclosures, unless otherwise stated, discussions using terms such as “processing,” “calculating,” “computing,” “determining,” and “displaying” throughout the foregoing disclosures are understood to refer to the operation and processes of a computer system, or similar electronic computing devices that manipulate and convert data represented as physical (electronic) quantities in the registers or memory of a computer system, into other data similarly represented as physical quantities in the memory or registers of a computer system, or other such information storage, transmission, or display devices.

[0097] One or more components may be referred to herein as “configured to do so,” “configurable to do so,” “operable to do so,” “adapted to do so,” “capable to do so,” “compliant to do so,” etc. A person skilled in the art will recognize that, unless otherwise required by the context, “configured to do so” generally includes components in an operational state and / or in an inactive state and / or a standby state.

[0098] The terms “proximal” and “distal” are used herein in relation to the clinician operating the handle portion of a surgical instrument. “Proximal” refers to the portion closest to the clinician, and “distal” refers to the portion further away from the clinician. It will be further understood herein that, for convenience and clarity, spatial terms such as “vertical,” “horizontal,” “up,” and “down” may be used in reference to drawings. However, surgical instruments are used in many orientations and positions, and these terms are not intended to be restrictive and / or absolute.

Claims

1. In a valve assembly configured to perform a fluid service by machine, the valve assembly is: The valve assembly comprises inlet / outlet ports for fluidically connecting fluid components to an internal cavity defined by the valve assembly, The filter of the machine has a filter port that fluidly connects the internal cavity, Pressure regulation system, It is equipped with, The aforementioned pressure regulation system is A plunger head configured to move between an open position and a closed position, A plunger head seat, wherein the plunger head and the plunger head seat are configured as a whole to define an opening between the internal cavity and the filter port in the open position, and the plunger head and the plunger head seat are configured as a whole to establish a fluid seal between the internal cavity and the filter port in the closed position, A spring having a spring constant configured to bias the plunger head to the open position, wherein the spring constant is overcome in response to a predetermined pressure within the machine to move the plunger head from the open position to the closed position, A valve assembly equipped with this feature.

2. The valve assembly according to claim 1, wherein the plunger head is mechanically coupled to the plunger base, and the spring is attached to the spring base and positioned between the spring base and the plunger base.

3. The valve assembly according to claim 2, further comprising a set screw, the set screw being configured to rotate, the rotation of the set screw being configured to change the spring constant of the spring, the changed spring constant being configured to be overcome in accordance with a second predetermined pressure in the machine.

4. The valve assembly according to claim 3, wherein the modified spring constant is greater than the spring constant, and the second predetermined pressure is greater than the predetermined pressure.

5. The valve assembly according to claim 3, wherein the modified spring constant is smaller than the spring constant, and the second predetermined pressure is lower than the predetermined pressure.

6. The valve assembly according to claim 3, wherein the rotation of the set screw is configured to change the distance between the plunger base and the spring base.

7. The valve assembly according to claim 2, wherein the plunger head is mechanically coupled to the plunger base via a shaft.

8. It further includes a pressure relief system, and the pressure relief system is Housing and A poppet defining an opening, configured to transition between a closed position in which the opening is housed within the housing and cannot transport fluid from the internal cavity to the mechanical reservoir port, and an open position in which the opening protrudes beyond the housing and can transport fluid from the internal cavity to the mechanical reservoir port. The valve assembly according to claim 1, wherein a spring having a spring constant is configured to bias the poppet to the closed position, and the spring constant is configured to be overcome in response to a predetermined pressure within the valve assembly.

9. The valve assembly according to claim 8, further comprising an operating mechanism configured to move from a closed position to an open position in response to a third predetermined pressure in the internal cavity generated by a second fluid service performed by the machine.

10. The valve assembly according to claim 9, wherein the housing is a component of the operating mechanism and is configured to move from the closed position to the open position of the operating mechanism in response to a third predetermined pressure generated by the second fluid service performed by the machine.

11. The valve assembly according to claim 10, wherein the housing has a spherical structure.

12. The valve assembly according to claim 1, wherein the spring contains a piezoelectric material, and the spring constant is changed by electrical stimulation of the piezoelectric material.

13. In a valve assembly configured to perform a fluid service by machine, the valve assembly is: The valve assembly comprises inlet / outlet ports for fluidically connecting fluid components to an internal cavity defined by the valve assembly, A mechanical reservoir port is provided to fluidly connect the internal cavity to the mechanical reservoir of the machine, Pressure relief system, The pressure relief system is equipped with, Housing and A poppet defining an opening, wherein the poppet is configured to transition between a closed position in which the opening is housed within the housing and fluid cannot be transported from the internal cavity to the mechanical reservoir port, and an open position in which the opening protrudes beyond the housing and fluid can be transported from the internal cavity to the mechanical reservoir port. A spring configured to bias the poppet to the closed position, the spring having a spring constant, the spring constant being set to be overcome in accordance with a predetermined pressure in the valve assembly, A valve assembly equipped with this feature.

14. The valve assembly according to claim 13, further comprising an operating mechanism configured to move from a closed position to an open position in response to a third predetermined pressure in the internal cavity generated by a second fluid service performed by the machine.

15. The valve assembly according to claim 14, wherein the housing is a component of the operating mechanism and is configured to move from the closed position to the open position of the operating mechanism in response to a third predetermined pressure generated by the second fluid service performed by the machine.

16. The valve assembly according to claim 15, wherein the housing has a spherical structure.

17. The valve assembly according to claim 13, wherein the spring includes a piezoelectric material, and the spring constant is changed by electrical stimulation of the piezoelectric material.

18. A method for managing the pressure within a valve assembly, Initiating a fluid process in the machine via the aforementioned valve assembly, The first pressure within the machine during the fluid process is adjusted via a pressure adjustment system, The second pressure within the valve assembly during the fluid process is relieved via a pressure relief system, To complete the aforementioned fluid process in the machine, Methods that include...

19. The method according to claim 18, wherein the adjustment of the first pressure in the machine includes overcoming the first biasing force of the first spring of the pressure adjustment system to move the pressure adjustment system from an open position to a closed position.

20. The method according to claim 18, wherein the relief of the second pressure in the valve assembly includes overcoming the second biasing force of the second spring of the pressure relief system to move the pressure relief system from a closed position to an open position.

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