Pump assembly

Abstract

The techniques described herein generally relate to pump assemblies. The pump assembly can include a housing, a pump, a suction flow path, a pressure flow path, and a bleed valve. The pump can include a suction port and a pressure port. The suction flow path is configured to fluidly connect a suction output of the pump assembly to the suction port. The pressure flow path is configured to fluidly connect a pressure output of the pump assembly to the pressure port. The pressure flow path can include a reservoir, a first conduit fluidly connecting the pressure port to the interior volume via a first opening of the reservoir, a filter, and a second conduit fluidly connecting the interior volume to the pressure output via a second opening of the reservoir. The bleed valve can be configured to exhaust gas and moisture from the interior volume via the third opening of the reservoir.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Provisional Application No. 63 / 376,240, filed on September 19, 2022, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to pump assemblies for generating pressure and vacuum. In particular, the present disclosure relates to diaphragm pump assemblies capable of reducing moisture accumulation. Background Art

[0004] Pump assemblies currently used in high humidity environments can experience humidity or moisture accumulation, which can damage electronic components within the assembly. Pump assemblies such as diaphragm pumps, progressive cavity pumps, peristaltic pumps, gear pumps and other similar pumps are often used in systems that also contain sensitive electronic components. Electronic components are susceptible to damage if exposed to liquids such as water. Current pump assemblies may cause undesirable condensation levels, which can potentially damage electronic components when they are used in medium to high humidity environments. Current pump assemblies are typically not configured to remove or reduce condensation and / or moisture levels to prevent damage. Summary of the invention

[0005] In a first aspect of the present disclosure, a pump assembly includes: a housing; a pressure output; a suction output; a pump, which is at least partially disposed within the housing and includes a pressure port in fluid communication with the pressure output and a suction port in fluid communication with the suction output; a reservoir; and a manifold, which is at least partially disposed between the pump and the reservoir within the housing. The manifold includes: a reservoir connection point, which is configured to couple the reservoir to a side of the manifold facing the reservoir, the reservoir connection point including a first through hole, the interior of the reservoir being in fluid communication with the pressure port of the pump through the first through hole; a second through hole, which connects a relief valve to the interior of the reservoir, the relief valve being positioned on the side of the manifold facing the pump; and a pressure outlet extending through the manifold, the pressure outlet connecting the interior of the reservoir to the pressure output fluid via a moisture control conduit that is permeable to water vapor.

[0006] In some embodiments, the pump assembly further comprises a splash plate positioned between the relief valve and the pump. In some embodiments, the splash plate is bent at an angle.

[0007] In some embodiments, the moisture control conduit is secured away from the pump to prevent the moisture control conduit from contacting the pump.

[0008] In some embodiments, the pump assembly can be positioned in a vertical configuration or a horizontal configuration. In some embodiments, in both the vertical configuration and the horizontal configuration, the relief valve is at a lower position in the reservoir than the pressure outlet. In some embodiments, the manifold is arranged parallel to the direction of gravity in the horizontal configuration, and wherein the manifold is arranged perpendicular to the direction of gravity in the vertical configuration.

[0009] In some embodiments, the pump assembly further comprises a filter positioned within the reservoir and configured to remove moisture from air passing through the filter. In some embodiments, the filter is positioned adjacent to the first through hole so that fluid entering the reservoir through the first through hole passes through the filter. In some embodiments, the filter is positioned at or near the center of the reservoir connection point.

[0010] In some embodiments, the reservoir connection point includes internal threads configured to engage external threads of the reservoir to couple the reservoir to the manifold.

[0011] In a second aspect of the present disclosure, a pump assembly includes: a housing; a pump including a suction port and a pressure port; a suction flow path connecting a suction output fluid of the pump assembly to the suction port; and a pressure flow path connecting a pressure output fluid of the pump assembly to the pressure port. The pressure flow path includes: a reservoir surrounding an internal volume; a first conduit connecting the pressure port fluid to the internal volume via a first opening of the reservoir; a filter configured to remove moisture from a gas that enters the internal volume from the first conduit; and a second conduit connecting the internal volume fluid to the pressure output via a second opening of the reservoir. The pump assembly also includes a discharge valve configured to discharge gas and moisture from the internal volume via a third opening of the reservoir, wherein the third opening is at least lower than the second opening when the pump assembly is mounted in a horizontal configuration and when the pump assembly is mounted in a vertical configuration.

[0012] In some embodiments, the second conduit comprises a moisture control tube that is permeable to water vapor.

[0013] In some embodiments, the pump assembly further comprises a manifold mechanically fixed relative to the pump, wherein the reservoir is coupled to the manifold. In some embodiments, the first opening, the second opening, and the third opening of the reservoir comprise through holes extending through the manifold. In some embodiments, the thickness of the manifold at the second opening is greater than the thickness of the manifold at the third opening. In some embodiments, the manifold is arranged parallel to the direction of gravity in a horizontal configuration, and wherein the manifold is arranged perpendicular to the direction of gravity in a vertical configuration.

[0014] In some embodiments, the pump assembly further comprises a splash plate positioned between the relief valve and the pump. In some embodiments, the splash plate is bent at an angle.

[0015] In some embodiments, the first conduit and the second conduit are secured away from the pump to prevent the conduits from contacting the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above aspects of the present disclosure and other features, aspects and advantages of the embodiments will now be described in conjunction with various embodiments with reference to the accompanying drawings. The embodiments shown are merely examples and are not intended to be limiting. Throughout the drawings, similar symbols generally identify similar components unless the context otherwise dictates.

[0017] Figure 1 is a perspective view of an example pump assembly according to the present disclosure.

[0018] Figure 2A-2B yes Figure 1 Top view of the pump assembly.

[0019] Figure 3-Figure 4 yes Figure 1 Side view of the pump assembly.

[0020] Figure 5 yes Figure 1 Front view of the pump assembly.

[0021] Figure 6 yes Figure 1 A rear view of the pump assembly with the pump hidden to show the manifold component of the pump assembly.

[0022] Figure 7-Figure 8 yes Figure 1 The pump components are located around Figure 2A A cross-sectional side view taken in the opposite direction of the central axis L.

[0023] Fig. 9 yes Figure 1 Rear cutaway view of the pump assembly, showing the flow path.

[0024] Fig.10 Shown is installed in a horizontal configuration within the system Figure 1 Pump components.

[0025] Fig.11 Shown is installed in a vertical configuration within the system Figure 1 Pump components. DETAILED DESCRIPTION

[0026] Pumps can be used in various types of systems, a non-limiting example being a liquid dispensing system. For example, liquid dispensing systems are often implemented in automated sample preparation and sample testing systems. Pumps can create both pressure and vacuum. Depending on the intended application of the system, the pump can be configured to supply positive and / or negative pressure. In the context of the present disclosure, pressure can refer to positive pressure and vacuum can refer to negative pressure. In addition, as used in the present disclosure, the term "vacuum" does not necessarily imply or require the generation of a true vacuum. On the contrary, for example, "vacuum" in the context of the present disclosure can correspond to the generation of a pressure that is suctioned or lower than ambient air pressure.

[0027] Embodiments of the present disclosure relate to pump assemblies for generating pressure and vacuum. In particular, the present disclosure relates to pump assemblies capable of reducing moisture accumulation in the pump assembly and surrounding components. The assembly can include a single pump capable of creating both pressure and vacuum. The use of a single pump can allow additional space (e.g., when implemented in a pump assembly of a predetermined external size or dimension) that is used to help reduce or eliminate additional components required for moisture from the pump assembly.

[0028] To avoid damage to equipment due to condensation or moisture, it may not be necessary to remove all or substantially all of the moisture. In many cases, a partial reduction in the overall percentage of moisture or humidity is sufficient. For example, the pump assembly of the present disclosure can be configured to reduce humidity to a level that does not damage electronic devices, with significantly less complexity and cost than would be required to remove substantially all of the moisture from the air. For example, in some cases, relative humidity can be reduced to a value of around 45% or less, although the actual value may depend on local environmental conditions.

[0029] Furthermore, in many cases, removing all or substantially all of the moisture from a volume of air may actually be problematic because it may create other problems within the system using the pressure and / or vacuum created at the pump assembly. For example, while the air supplied in the pressure line will be substantially free of moisture, removing all or substantially all of the moisture from the pressurized air may create drainage problems when attempting to remove liquid from the system. This in turn may cause damage to other sensitive or electronic components used in the system, or may require the installation of additional liquid management components (e.g., drain lines, etc.), which may add further time and cost, and may not even be feasible due to space or access constraints when installing the dehumidification pump assembly in a predefined space within an existing piece of equipment.

[0030] By removing an intermediate amount of moisture or liquid from the air within the pump assembly, condensation within the system can be avoided while also avoiding the need to properly drain excess liquid when all or substantially all of the liquid is removed (otherwise the liquid will accumulate). Thus, embodiments of the pump assembly of the present disclosure are configured to remove sufficient moisture from the air output as pressurized air to prevent damage to downstream electronic components, while also removing an amount of moisture that is small enough to be handled internally (e.g., contained, dispersed, and / or evaporated) within the pump assembly housing without the need for additional liquid management components, such as drain lines or the like.

[0031] Figure 1-Figure 4 An example pump assembly 100 according to the present disclosure is shown. The pump assembly 100 can include a pump 102, a manifold 104, and a reservoir 106. The pump 102 can be at least partially disposed within a housing 108. The manifold 104 can be at least partially disposed within the housing 108 and between the pump 102 and the reservoir 106. The pump 102, the manifold 104, and the reservoir 106 can be aligned along a central axis L. In alternative embodiments, the pump 102, the manifold 104, and / or the reservoir 106 may not be aligned with the central axis L.

[0032] The manifold 104 can be mechanically fixed to the housing 108. The housing 108 can have one or more brackets 111 to attach the manifold 104 to the housing 108. The one or more brackets 111 can be attached to a side of the manifold 104 facing the reservoir. Alternatively, the one or more brackets 111 can be attached to a side of the manifold 104 facing the pump, or the manifold 104 can be attached to the housing 108 by any other suitable mechanical connection. The one or more brackets 111 extend perpendicular to the walls of the housing 108. The walls of the housing 108 can extend parallel to the central axis L. Reference will be made below to Figure 5-Figure 6 Describe the manifold in more detail.

[0033] The pump 102 can be a diaphragm pump or other suitable type of pump, and can be configured to create both pressure and vacuum. The pump 102 can have a pressure port 110 and a suction port 112. The pressure port 110 can be in fluid communication with a pressure output 114. The pressure port 110 can be coupled to the pump 102 via a conduit 115. The suction port 112 can be in fluid communication with a suction output 116. The suction port 112 can be coupled to the pump 102 via a conduit or tubing 117. The pump can operate by delivering a fluid such as air from the suction port 112 to the pressure port 110, so that a positive pressure is created at the pressure port 110, and a negative pressure is created at the suction port 112.

[0034] In some embodiments, the pump 102 can have a second pressure port 110a and a second suction port 112a. The second pressure port 110a and the second suction port 112a can each be coupled to the manifold 104 and a corresponding muffler 113 via respective conduits 115a, 117a. The muffler 113 can be positioned on a side of the manifold 104 facing the reservoir and extend in a direction parallel to the central axis L. The muffler 113 can reduce noise in the system by dampening vibrations created by the operation of the pump 102. In addition, the muffler 113 can be used as a filter to prevent at least some particulate matter and / or debris from entering the pump 102.

[0035] In some embodiments, the conduits 115, 115a, 117, 117a can be coupled or secured to the housing 108 to prevent the conduits 115, 115a, 117, 117a from contacting the pump 102. This can prevent wear on the conduits 115, 115a, 117, 117a. For example, if the conduits 115, 115a, 117, 117a can contact the pump 102, the wear may be caused by vibrations of the pump, friction between the pump 102 and the conduits 115, 115a, 117, 117a, and / or heat generated by the pump 102.

[0036] The housing 108 can have one or more coupling features (e.g., slots 109) that facilitate installation of the pump assembly 100. The one or more slots 109 can be configured to connect the pump assembly 100 to an instrument, such as by inserting a mechanical fastener (e.g., a bolt, a screw, or the like) through the one or more slots 109. The one or more slots 109 can be positioned around the base of the housing 108. For example, the pump assembly 100 can have four slots 109 positioned in each corner of the base of the housing 108. However, the slots 109 can be positioned anywhere on the housing 108, and any number of slots 109 can be used. In some embodiments, the slots 109 can have an elongated shape to allow flexibility in positioning the pump assembly 100.

[0037] The reservoir 106 can enclose or surround the interior volume. The interior of the reservoir 106 can be in fluid communication with the pressure port 110 of the pump 102 through the first through hole 122. The conduit 115 can fluidly connect the pressure port 110 to the interior volume of the reservoir 106 via the first through hole or opening 122.

[0038] The pump assembly 100 can further include a filter 118. The filter 118 can be positioned within the reservoir 106. The filter 118 can be aligned with the first through hole 122 and the pressure port 110. The filter 118 can be configured to remove at least some moisture from air passing through the filter as the air travels from the pump 102 into the reservoir 106.

[0039] Figure 5 is a front view of the manifold 104 . Figure 6 1 is a rear view of the pump assembly 100, wherein the pump is hidden to show pump-facing features of the manifold 104. The manifold 104 can include a reservoir connection point 120. The reservoir connection point 120 can be located in the center of the manifold 104, or can be located offset from the center of the manifold 104. The reservoir connection point 120 can be circular, or can be any other suitable shape corresponding to the shape of a connection portion of a reservoir used with the manifold 104. The reservoir connection point 120 can be configured to couple the reservoir 106 to the reservoir-facing side of the manifold 104. In some embodiments, the exterior of the connection portion of the reservoir 106 (see, e.g., Fig. 9 ) can be threaded, and the interior of the reservoir connection point 120 can be threaded such that the reservoir 106 can be coupled to the manifold 104 by rotationally engaging corresponding threads of the reservoir 106 and the reservoir connection point 120. The reservoir connection point 120 can include a first through-hole 122 extending from a reservoir-facing side of the manifold 104 to a pump-facing side of the manifold 104.

[0040] Manifold 104 can include a second through hole 124 and a pressure outlet 128, and the second through hole 124 connects a relief valve 126 to the interior of the reservoir 106. The relief valve 126 can be positioned on the side of the manifold 104 facing the pump, and can discharge gas and / or liquid into the interior of the pump assembly 100. In some embodiments, the configuration including the relief valve 126 can desirably allow the pump assembly 100 to operate continuously when it is installed in an apparatus that only occasionally uses pressurized air, rather than opening and closing the pump assembly 100 each time pressurized air is needed. In this case, excess air and / or moisture that may accumulate in the reservoir 106 when the pump assembly 100 is operating and the apparatus does not use pressurized air can be discharged through the pressure relief valve. The pressure outlet 128 can be directly or indirectly connected to the pressure output 114, as described in more detail elsewhere herein.

[0041] Advantageously, when the pump assembly 100 is mounted in a vertical configuration or a horizontal configuration, the manifold 104 can be configured such that the second through hole 124 leading to the relief valve 126 is positioned lower in the reservoir 106 than the pressure outlet 128. In a horizontal configuration, such as Fig.10As shown, the second through hole 124 and the relief valve 126 are positioned below the pressure outlet 128. For example, using Fig.10 The coordinate axes shown, the second through hole 124 and the relief valve 126 are positioned below the pressure outlet 128 on the Z axis. In the vertical configuration, as shown Fig.11 As shown, the second through hole 124 and the relief valve 126 are still positioned below the pressure outlet 128. For example, the second through hole 124 and the relief valve 126 can be at a lower position in the vertical configuration because the manifold 104 is thinner at the portion where the second through hole 124 and the relief valve 126 are located compared to the thickness of the portion where the pressure outlet 128 is located. In the vertical configuration, any pooling or accumulation of liquid can escape through the relief valve 126 before it reaches the level of the pressure outlet 128. The pump assembly 100 can operate equally well for moisture management in either the vertical configuration and the horizontal configuration, which can eliminate the need for multiple designs of pump assemblies for various systems.

[0042] The pressure outlet 128 can extend through the manifold 104 from the side facing the reservoir to the side facing the pump. Fig. 9 As shown, pressure outlet 128 can fluidly connect the interior of reservoir 106 with pressure output 114 via conduit 130. In some embodiments, conduit 130 can be formed via two segments and coupled together to form a ring. In some embodiments, conduit 130 can be a single, integral piece of conduit.

[0043] The pipe 130 can be a moisture control pipe. The moisture control pipe can be configured to balance the humidity inside the pipe and the humidity outside the pipe, and / or allow moisture to flow from the high pressure side of the pipe to the low pressure side. The pipe 130 can be permeable to water vapor. For example, if the humidity inside the pipe 130 is different from the humidity outside the pipe 130, the pipe 130 can allow water vapor from the higher humidity side to penetrate the pipe 130 to travel to the lower humidity side. In addition, since the air in the pipe 130 can be under pressure, moisture can travel from the high pressure inside the pipe 130 to the low pressure outside the pipe 130, thereby allowing the relative humidity in the pressurized air in the pipe 130 to be reduced to a level lower than the ambient relative humidity. In this way, moisture in the air can be removed when it travels through the pipe 130. The pipe 130 can be coupled or fixed to the housing 108 to prevent the pipe 130 from contacting the pump 102. This can prevent wear on the pipe 130, such as due to vibration of the pump 102.

[0044] Figure 7 and Figure 8 2 is a cross-sectional side view of the pump assembly 100 taken along the central axis L shown in FIG. Figure 7 and Figure 8As shown, the pump assembly 100 can include a splash plate 132. The splash plate 132 can be configured to prevent moisture leaving the discharge valve 126 from contacting the pump 102 or any electronic device in the pump assembly. In some embodiments, the splash plate 132 can be bent at a certain angle or otherwise positioned to deflect moisture leaving the discharge valve 126. The splash plate 132 can be bent at an angle of about 40 degrees, about 50 degrees, about 60 degrees, about 70 degrees, or any value therebetween. Any moisture leaving the discharge valve 126 can then leave the pump assembly 100 by evaporating into the surrounding environment. The use of the discharge valve 126 can prevent moisture accumulation within the reservoir 106, which can eliminate the need for conventional service to empty the reservoir 106.

[0045] like Figure 7 and Figure 8 As shown, the pressure outlet 128 can be positioned at a higher point on the vertical axis A1 relative to the first through hole 122 and the second through hole 124. The pressure outlet 128 can be positioned off-center relative to the central axis A2 extending through the reservoir 106. The pressure outlet 128 can be positioned in a plane that extends vertically through the central axis A2 of the reservoir 106. The pressure outlet 128 can extend partially through the width of the manifold 104. A portion of the pressure outlet 128 can extend a portion of the length of the manifold 104, as shown in FIG. Fig. 9 and pressure outlet passage 128a are described in more detail.

[0046] The first through hole 122 can be positioned along the vertical axis A1 between the pressure outlet 128 and the second through hole 124. The first through hole 122 can be positioned on the central axis A2 of the reservoir 106. The first through hole 122 can be positioned at the intersection of the central axis A2 and the vertical axis A1. The first through hole 122 can extend through the width of the manifold 104.

[0047] The second through hole 124 can be positioned at a lower point on the vertical axis A1 relative to the first through hole 122 and the pressure outlet 128. The second through hole 124 can extend through the width of the manifold 104. The second through hole 124 can be positioned off-center relative to a central axis A2 extending through the reservoir 106. The second through hole 124 can be positioned in a plane extending vertically through the central axis A2 of the reservoir 106.

[0048] like Figure 7-Figure 8 As shown, the pump 102 can be mechanically fixed to the base of the housing 108. The pump 102 can be positioned a distance from the base of the housing 108. For example, Figure 7-Figure 8 The pump 102 can be positioned on top of one or more mounts 121. The height of the mounts 121 can determine the distance that the pump 102 is positioned above the base of the housing 108.

[0049] Fig. 9 is a cross-sectional view of the pump assembly 100 illustrating the fluid flow path of the pump assembly 100 in operation. Fig. 9 The arrows in FIG. 1 represent an example flow path from the pump 102 through the manifold and pump assembly 100. Positive pressure air from the pressure output of the pump can be supplied from the pressure port 110 of the pump 102 (at Fig. 9 1 (hidden in FIG. 1 ) flows through the first through hole and into the reservoir 106 through the filter 118. Moisture can be collected within the reservoir 106, and excess pressure and / or moisture within the reservoir 106 can exit the reservoir 106 through the relief valve 126. Pressurized air with reduced moisture content can exit the reservoir 106 through the pressure outlet 128. The pressure outlet 128 can extend through the manifold 104 to the conduit 130 via the pressure outlet passage 128a. The fluid can travel to the pressure output 114 through the conduit 130. The conduit 130 can be configured to reduce the relative humidity (RH) by, for example, about 10% to about 20%.

[0050] Fig.10 and Fig.11 An example installation configuration of a pump assembly 100 according to the present disclosure within an example device environment is shown. However, without departing from the scope of the present disclosure, the pump assembly 100 can also be installed in various other systems or devices. As described above, the pump assembly 100 can be operably positioned in a vertical configuration or a horizontal configuration. In both the vertical configuration and the horizontal configuration, the second through hole 124 and the discharge valve 126 are positioned below the pressure outlet 128. Therefore, in both configurations, the pump assembly 100 removes moisture and manages flow to prevent damage to sensitive electronic equipment 190 positioned nearby and / or damage to the electronic equipment of the pump 102. In many cases, the electronic device 190 may need to be positioned near the pump assembly 100; therefore, the moisture control features described herein can prevent the occurrence of damage, such as by removing moisture from the pressurized air provided to the device 190, and by providing controlled and managed evaporation of the dehumidified air in the pump assembly 100.

[0051] Fig.10 Several pump assemblies 100 are shown positioned in a horizontal configuration with various electronics 190 positioned nearby. In this non-limiting example, the pump assembly 100 generates pressure and vacuum in a liquid dispensing system of an automated sample preparation and testing device. This is an example system in which the pump assembly of the present disclosure may be used. The manifold 104 can be arranged parallel to the direction of gravity in the horizontal configuration. When positioned in the horizontal configuration, the pump 102, manifold 104, and reservoir 106 can be positioned on a line parallel to the plane formed by the X and Y axes, such as Fig.10When positioned in the horizontal configuration, the pump 102, manifold 104, and reservoir 106 can be positioned in a line parallel to the ground. As described herein, when in the horizontal configuration, the pump assembly 100 can manage moisture accumulated in the pump assembly to prevent damage to the electronics 190 and the pump 102.

[0052] Fig.11 The pump assembly 100 is shown positioned in a vertical configuration with the electronic device 190 positioned nearby. This is another example system in which the pump assembly of the present disclosure may be used. The manifold 104 can be arranged perpendicular to the direction of gravity in the vertical configuration. When positioned in the vertical configuration, the pump 102, the manifold 104, and the reservoir 106 can be positioned on a line parallel to the Z axis, such as Fig.11 When positioned in the vertical configuration, the pump 102, manifold 104, and reservoir 106 can be positioned in a line perpendicular to the ground. As described herein, when in the vertical configuration, the pump assembly 100 can manage moisture accumulated in the pump assembly to prevent damage to the electronics 190 and the pump 102. While the pump assemblies of the present disclosure can be used in any environment, they are particularly useful in medium to high humidity environments.

[0053] Although the above detailed description has shown, described and pointed out novel features, it is understood that various omissions, substitutions and changes can be made to the form and details of the apparatus, system and method without departing from the spirit of the present disclosure. As can be appreciated, some parts of the description herein can be embodied in a form that does not provide all of the features and benefits set forth herein, because some features can be used or practiced separately from other features. Therefore, the present disclosure is not intended to be limited to the specific embodiments disclosed herein, but rather covers all modifications and substitutions within the true scope and spirit of the present disclosure as embodied in the appended claims.

Claims

1. A pump assembly, characterized in that: include: case; Pressure output; Suction output; a pump disposed at least partially within the housing and including a pressure port in fluid communication with the pressure output and a suction port in fluid communication with the suction output; Storage container; and a manifold disposed at least partially within the housing and between the pump and the reservoir, the manifold comprising: a reservoir connection point configured to couple the reservoir to a reservoir-facing side of the manifold, the reservoir connection point comprising a first through-hole through which an interior of the reservoir is in fluid communication with the pressure port of the pump; a second through hole connecting a discharge valve to the interior of the reservoir, the discharge valve being positioned on a side of the manifold facing the pump; and A pressure outlet extends through the manifold, the pressure outlet fluidly connecting the interior of the reservoir with the pressure output via a moisture control conduit that is permeable to water vapor.

2. The pump assembly of claim 1 further comprising a splash plate positioned between the relief valve and the pump.

3. The pump assembly of claim 2, wherein the splash plate is bent at an angle.

4. The pump assembly of claim 1, wherein the moisture control conduit is secured away from the pump to prevent the moisture control conduit from contacting the pump.

5. The pump assembly of claim 1, wherein the pump assembly is positionable in a vertical configuration or a horizontal configuration.

6. The pump assembly of claim 5, wherein in both the vertical configuration and the horizontal configuration, the relief valve is at a lower position in the reservoir than the pressure outlet.

7. The pump assembly of claim 5, wherein the manifold is disposed parallel to a direction of gravity in the horizontal configuration, and wherein the manifold is disposed perpendicular to the direction of gravity in the vertical configuration.

8. The pump assembly of claim 1, further comprising a filter positioned within the reservoir and configured to remove moisture from air passing through the filter.

9. The pump assembly of claim 8, wherein the filter is disposed adjacent the first through-hole such that fluid entering the reservoir through the first through-hole passes through the filter.

10. The pump assembly of claim 8, wherein the filter is positioned at or near the center of the reservoir connection point.

11. The pump assembly of claim 1 , wherein the reservoir connection point comprises internal threads configured to engage external threads of the reservoir to couple the reservoir to the manifold.

12. A pump assembly comprising: case; a pump including a suction port and a pressure port; a suction flow path fluidly connecting a suction output of the pump assembly to the suction port; a pressure flow path fluidly connecting a pressure output of the pump assembly to the pressure port, the pressure flow path comprising: a reservoir surrounding the interior volume; a first conduit fluidly connecting the pressure port to the interior volume via a first opening of the reservoir; a filter configured to remove moisture from gas entering the interior volume from the first conduit; and a second conduit fluidly connecting the interior volume to the pressure output via a second opening of the reservoir; and A drain valve is configured to exhaust gas and moisture from the interior volume via a third opening of the reservoir, wherein the third opening is at least lower than the second opening when the pump assembly is mounted in a horizontal configuration and when the pump assembly is mounted in a vertical configuration.

13. The pump assembly of claim 12, wherein the second conduit comprises a moisture control tube that is permeable to water vapor.

14. The pump assembly of claim 12, further comprising a manifold mechanically fixed relative to the pump, wherein the reservoir is coupled to the manifold.

15. The pump assembly of claim 14, wherein the first opening, the second opening, and the third opening of the reservoir comprise through-holes extending through the manifold.

16. The pump assembly of claim 15, wherein a thickness of the manifold at the second opening is greater than a thickness of the manifold at the third opening.

17. The pump assembly of claim 14, wherein the manifold is disposed parallel to a direction of gravity in the horizontal configuration, and wherein the manifold is disposed perpendicular to the direction of gravity in the vertical configuration.

18. The pump assembly of claim 12, further comprising a splash plate positioned between the relief valve and the pump.

19. The pump assembly of claim 18, wherein the splash plate is bent at an angle.

20. The pump assembly of claim 12, wherein the first conduit and the second conduit are secured away from the pump to prevent the conduits from contacting the pump.

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