Lubricant pump

Abstract

A housing (2) for a lubricant supply device (1) for supplying a consumer with a viscous medium, in particular a lubricant, is disclosed, wherein the housing (2) is configured to form at least one storage space (8) for the viscous medium and to receive a delivery pump for pumping the viscous medium from the storage space (8) to a medium outlet, wherein the housing (2) comprises at least one storage space side wall (12a), a storage space bottom wall (30a) and a storage space cover wall (28a) defining the storage space (8) for the medium, and at least partially comprises an outer wall (14a) surrounding the storage space side wall (12a) spaced therefrom and forming a first intermediate space (26a) such that the housing (2) at least partially forms a double wall, and at least one opening (24) is further provided in the storage space side wall (12a) fluidly connecting the storage space (8) of the housing (2) to the intermediate space (26a), and a lubricant supply device (1) comprising such a housing (2) is disclosed.

Description

Technical Field

[0001] The present invention relates to the housing of a supply device for supplying viscous media to consumers, particularly the housing of a lubricant supply device, and such a lubricant supply device. Background Technology

[0002] In existing lubricant pumps that include a lubricant reservoir, a vent element is typically provided to connect the lubricant reservoir to the external environment to prevent negative or overpressure from forming during emptying or filling of the reservoir. Typically, such vent elements are fixedly attached to the container, and they are usually implemented with a labyrinthine design to prevent external foreign matter or moisture from entering the container.

[0003] However, a major drawback of these solutions is the difficulty in cleaning the maze or removing foreign objects (such as insects; insects can nest in the venting element, especially when used outdoors), which poses a significant challenge. Furthermore, the venting element, externally attached to the container, creates a spatial structure on the container, which can obstruct the installation of the lubricant pump and lead to damage or harm. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide a lubricant pump that includes a venting device to improve the above-mentioned disadvantages.

[0005] This objective is achieved by the housing for the lubricant supply device according to claim 1 and the lubricant supply device according to claim 16.

[0006] Below, a housing for a supply device for supplying viscous media, particularly lubricants, to a consumer is proposed. The supply device is configured to form at least one storage space for the viscous media and to receive a delivery pump to pump the viscous media from the storage space to a media outlet.

[0007] Since this supply device is primarily used for dispensing lubricants as viscous media, the term "lubricant" will be used in the following text as if it were "viscous media." Of course, other viscous media may also be used.

[0008] To provide a ventilator that will not be structurally damaged, it is proposed that the housing includes at least one storage space sidewall, a storage space bottom wall, and a storage space cover wall defining a storage space for a medium, and at least partially includes a storage space outer wall spaced relative to the storage space sidewall, surrounding the storage space sidewall, and forming a first intermediate space. The housing is thus at least partially constructed as a double-walled structure.

[0009] Furthermore, at least one first opening is provided in the side wall of the storage space, which fluidly connects the storage space of the housing to the first intermediate space. This opening allows for some air exchange within the storage space itself, enabling ventilation to prevent negative or overpressure within the storage space.

[0010] This is particularly necessary in supply systems where lubricant is pumped under pressure from a closed storage space, the amount of lubricant decreasing during pump operation. Since the storage space is closed, or the pump includes a so-called follower plate that separates the lubricant area from the air area in the storage space, this space must be vented above the lubricant level and inside the storage space, or above the follower plate. Otherwise, as the pump operates and the lubricant level decreases, a negative pressure will form, which will adversely affect the pumping function. This also applies during the filling or refilling of the storage space, where air must escape to ensure thorough filling. Furthermore, a venting device can prevent the housing from bursting in the event of overfilling, as lubricant can escape from the storage space. Moreover, the double-walled nature of the housing ensures that the venting device, and therefore the housing, will not be damaged.

[0011] According to a further preferred exemplary embodiment, the first intermediate space is at least partially enclosed by a covering wall and / or a bottom wall, wherein preferably, the storage space covering wall and / or the storage space bottom wall at least partially encloses the first intermediate space. This ensures that contaminants do not enter the intermediate space.

[0012] Such housings for lubricant pumps are typically manufactured as injection-molded components, which in one-piece manufacturing include all or more of the walls described in this context.

[0013] According to another advantageous exemplary embodiment, the housing further includes a pump space sidewall, a pump space bottom wall, and a pump space cover wall defining a pump receiving space for receiving a delivery pump, and also includes at least partially a pump space outer wall spaced relative to the pump space sidewall, surrounding the pump space sidewall, and forming a second intermediate space, wherein the pump receiving space and the storage space are preferably disposed relative to each other such that the first and second intermediate spaces form a continuous intermediate space. This provides a housing that appears to be a one-piece assembly, which can exist as a prefabricated component.

[0014] In most lubricant pumps, the housing consists of two parts: the pump space and the storage space. Therefore, pump components can be installed and maintained without having to empty or remove the entire housing.

[0015] The second intermediate space is preferably also at least partially enclosed by a cover wall and / or a bottom wall, wherein the pump space cover wall and / or pump space bottom wall preferably at least partially enclose the second intermediate space. Similarly, as with the storage space, the integral design using the pump space bottom wall or pump space cover wall offers the advantage of ease of housing manufacture.

[0016] According to another exemplary embodiment, the pump space sidewall and the storage space sidewall are integrally formed, and the storage space outer wall and the pump space outer wall are integrally formed, such that the first and second intermediate spaces form a continuous intermediate space. Furthermore, the bottom wall of the storage space preferably forms a pump space covering wall. Thus, a housing comprising as few individual components as possible is provided.

[0017] According to another exemplary embodiment, the continuous intermediate space is also at least partially enclosed by a cover wall and / or a bottom wall, wherein the storage space cover wall and / or the pump space bottom wall preferably at least partially enclose the continuous intermediate space.

[0018] According to another exemplary embodiment, the housing includes at least one additional opening that fluidly connects the first, second, or consecutive intermediate spaces to the external environment, thereby providing a venting device via the intermediate spaces through which the storage space exchanges air with the external environment. Furthermore, if the intermediate spaces are covered by a cover wall or bottom wall as described above, it can also ensure that the intermediate spaces are protected from the entry of foreign objects, while air exchange with the external environment can occur simultaneously, allowing the storage space to maintain pressure compensation.

[0019] A particular advantage here is that at least one of the additional openings is formed in the bottom wall of the housing, which at least partially encloses the first, second, or continuous intermediate spaces. Due to the design of the openings in the lower region, particularly in the bottom wall region, it can be further ensured that lubricant that may enter the intermediate spaces during overfilling of the storage container can be drained from the intermediate spaces without the need for costly cleaning. The additional openings in the bottom wall allow lubricant to easily flow out of the intermediate spaces. Furthermore, the downward-opening venting effectively prevents contamination.

[0020] To keep the intermediate space as free of lubricant as possible, even in the event of overfilling of the storage space (i.e., when lubricant escapes from the storage space into the intermediate space), it is further preferred to introduce a tubular (preferably replaceable) element into the intermediate space, which fluidly connects the first opening to another opening formed in the bottom wall. Due to this tubular element, lubricant entering the intermediate space during overfilling can be guided away from the intermediate space, preventing lubricant contamination of the intermediate space walls. Since the tubular element is preferably replaceable, it also ensures the provision of a hygienic housing. The accumulation of old lubricant (e.g., due to overfilling) can be prevented by removing and cleaning or replacing the tubular element.

[0021] Here, it is preferable to introduce the tubular element into the intermediate space via a separate opening formed in the bottom wall, wherein, in particular, the opening in the bottom wall is equipped with an attachment structure, such as a threaded or bayonet coupling, which interacts with a complementary attachment structure, particularly a complementary threaded or bayonet coupling, formed on the tubular element to retain the tubular element in the intermediate space. Thus, on the one hand, the tubular element is ensured to be held in the intermediate space and on the housing, and on the other hand, it is positioned in its place, thereby ensuring fluid connection between the first opening and the tubular element even when the lubricant pump is subjected to mechanical loads (e.g., impact or tilting).

[0022] According to another advantageous exemplary embodiment, at least one of the additional openings in the outer wall is preferably formed opposite to the first opening, such that the first and second openings in the outer wall form through openings through the outer wall and sidewalls of the storage space. This is particularly advantageous for injection-molded housings, as tool-specific openings can be easily formed in the sidewalls of the storage space through the through openings.

[0023] To prevent foreign objects from unintentionally entering through a second opening in the outer wall, a sealing element that can be inserted into the opening is also provided. This sealing element is configured to close the opening in the outer wall, but at the same time leave the opening leading to the side wall of the storage space open.

[0024] Here, an exemplary embodiment is particularly preferred, wherein the sealing element is configured to close the through openings passing through the outer wall and side walls of the storage space, and is configured as a closed hollow body, preferably a hollow cylinder, comprising first and second sealing element openings, wherein the first sealing element opening is fluid-oriented toward the first opening, and the second sealing element opening interacts fluidly with the intermediate space (particularly a tubular element), such that the sealing element is also configured to form a fluid connection between the first opening and the intermediate space or tubular element. This ensures that lubricant is guided directly from the first opening into the tubular element or intermediate space without flowing down onto the side walls of the intermediate space. This also contributes to the hygienic basic design of the housing.

[0025] Instead of another element, the tubular element could also be specified to have an elbow-shaped design at one end, which interacts with the first opening. For example, the aforementioned bayonet connector could also additionally allow the tubular element to be oriented toward the first opening. Of course, other designs are also possible, such as markings between the tubular element and the housing indicating that the tubular element is positioned correctly for fluid connection.

[0026] According to another advantageous exemplary embodiment, the closure element is further rotatably and / or releasably attached to the outer wall. Alternatively or additionally, the closure element may also be inserted into the opening in multiple defined positions. Particularly preferred here is that the closure element can be moved from a first position to a second position, in which a fluid connection can be established between the first opening and the intermediate space or tubular element, and in the second position, where a fluid connection is prevented between the first opening and the intermediate space or tubular element. Here, the attachment itself can be achieved, for example, by screwing or also by a pressure seat. Furthermore, markings or corresponding latching positions (e.g., by bayonet couplings) may be provided in sequence, defining the corresponding orientation of the closure element in the through-opening.

[0027] Another aspect of the invention relates to a lubricant supply device including such a housing.

[0028] Further advantages and advantageous embodiments are described in detail in the specification, drawings, and claims. Here, specifically, the combinations of features specified in the specification and drawings are merely exemplary, and thus these features may also exist individually or in other combinations.

[0029] The invention will now be described in more detail using exemplary embodiments depicted in the accompanying drawings. Here, the exemplary embodiments and combinations shown are purely illustrative and are not intended to limit the scope of the invention. The scope is defined only by the pending claims. Attached Figure Description

[0030] Figure 1 A schematic bottom view of a first exemplary embodiment of a housing for a lubricant supply device is shown;

[0031] Figure 2 The first state is shown. Figure 1 A cross-sectional view of the shell shown;

[0032] Figure 3 It shows the second state. Figure 1 A cross-sectional view of the shell shown;

[0033] Figure 4 A bottom view of an exemplary embodiment of the housing is shown;

[0034] Figure 5 The first filling state is shown. Figure 4 A cross-sectional view of the shell; and

[0035] Figure 6 It shows the second filling state. Figure 4 A cross-sectional view of the shell.

[0036] In the following text, identical or functionally equivalent elements are indicated by the same reference numerals. Detailed Implementation

[0037] Figures 1 to 3 A first exemplary embodiment of the preferred housing 2 of the lubricant pump 1 is shown. Here, Figure 1 A bottom view of lubricant pump 1 is shown, while Figure 2 and 3 Cross-sectional views are shown. The lubricant pump 1 includes a housing 2, which is laterally fitted with a flange element 4, for example, the housing 2 can be attached to a wall using the flange element 4. Furthermore, Figure 1 And better Figure 2 and 3 The housing 2 depicted herein, showing the lubricant pump 1, is the housing of the lubricant pump including an internal motor. For this purpose, the housing includes a region 6 in which the motor (not shown) that operates the lubricant pump is housed, and this region is separated from the lubricant receiving and storage space 8 by a wall 16. Figures 2 to 3 It can be seen that the storage space 8 is closed from the outside through the storage space side wall 12a, the storage space covering wall 28a and the storage space bottom wall 30a.

[0038] also, Figure 2 , 3 The housing 2 is shown to include a pump receiving space 18 located below the storage space 8, which is configured to receive, for example, a pump drive component and a pump element (not shown). Other pump elements are not depicted in the figures. The pump receiving space 18 is also enclosed by a pump space sidewall 12b, a pump space cover wall 28b, and a storage space bottom wall 30b. In the exemplary embodiment described herein, the pump space cover wall 28b is formed by the storage space bottom wall 30a. Furthermore, the sidewalls 12a and 12b may be constructed integrally and are hereinafter referred to as sidewall 12.

[0039] from Figure 1 It can be seen from this that, Figure 2 and 3 As can be seen more precisely, the housing 2 is at least partially constructed as a double-walled structure, and specifically includes an outer wall 14a for the storage space or an outer wall 14b for the pump space, which may also be constructed integrally and are referred to hereinafter as outer wall 14. Specifically from... Figure 2 , 3 As can be seen, the sidewall 12 and the outer wall 14 are spaced apart from each other to form an intermediate space 26. In the two-part design of the housing, the intermediate space 26 is divided into a first intermediate space 26a associated with the storage space and a second intermediate space 26b associated with the pump space. However, the two housing parts are arranged relative to each other such that the first and second intermediate spaces 26a and 26b form a continuous intermediate space 26.

[0040] In addition, from Figure 2, 3 It can be seen that the storage space covering wall 28a is configured such that it also encloses the intermediate space 26 relative to the external environment, and in the bottom region, the pump space bottom wall 30b at least partially encloses the intermediate space relative to the external environment. Therefore, the storage space covering wall 28a is also the covering wall 28 of the housing, and the pump space bottom wall 30b is the bottom wall 30 of the housing.

[0041] exist Figures 1 to 3 In the exemplary embodiment shown, the housing or storage space is filled with lubricant via a nozzle 20 formed in the storage space covering wall 28a. This occurs, for example, by pumping the lubricant under pressure into the connecting nozzle 20. To allow pressure compensation in the storage space 8 without stopping the filling process, a venting device 22 is also provided in the container 2, which, in the illustrated case, is provided through an opening 24 in the side wall 12. This first opening 24 in the side wall 12 is formed in a region where the lubricant container 2 is configured as a double-walled space, such that the opening 24 fluidly connects the storage space 8 to the intermediate space 26.

[0042] In addition, Figure 2 , 3 As can be seen, the covering wall 28 of the housing 2 extends above and closes the intermediate space 26 from above. The bottom wall 30 also extends above the intermediate space 26 and at least partially closes it relative to the external environment. However, in order to enable ventilation through the intermediate space, an opening 32 is also provided in the illustrated exemplary embodiment, which fluidly connects the intermediate space 26 to the external environment.

[0043] also, Figure 2 , 3 An additional opening 34 formed in the outer wall 14 is shown, configured to align with opening 24 as a through-hole. Since this housing 2 is typically manufactured as a one-piece component by injection molding or by injection molding methods, openings through the outer wall 14 and side walls 12 are necessary to form opening 24. Even though ventilation through this opening 34 is directly possible, it is preferable to close it with a sealing element 36, thereby enabling fluid connection between the storage space 8 and the intermediate space 26, while sealing off the external environment relative to the intermediate space 26. Direct ventilation through opening 34 would make it very easy for insects to enter the storage space, allowing them, for example, pests, to directly access it.

[0044] The closure element 36 itself can be configured, for example, as a cylinder, and includes a first closure element opening 38 and a second closure element opening 40, wherein the first closure element opening 38 interacts with the first opening 24, while the second closure element opening 40 provides a fluid transition between the intermediate space 26 and the storage space 8. For this purpose, the closure element 36 can be rotated or accordingly inserted into a first position (see...). Figure 2 The opening 40 and the intermediate space 26 can be fluidly connected, or allow access to... Figure 3 The closed position is shown, where fluid connection between the storage space 8 and the intermediate space 26 is prevented by the wall element 42 (outer surface). Therefore, the closing element 36 can be rotated or correspondingly inserted into the first position during filling (see...). Figure 2 The storage space 8 and the intermediate space 26 can be fluidly connected through the first opening 24, the first closed opening 38, and the second closed opening 40. Excess air or excess lubricant is then directed from the storage space 8 through the opening 24 and the intermediate space 26 to the opening 32 present in the base plate. This prevents overpressure or overfilling.

[0045] During operation, the closing element 36 can then be rotated to... Figure 3 The position shown prevents lubricant from accidentally escaping through opening 24 and intermediate space 26. To avoid the accumulation of negative pressure in storage space 8, air is typically supplied through filling nozzle 20. Alternatively, ventilation can, of course, be performed during operation through intermediate space 26. In this case, sealing element 36 is not rotated to the second position ( Figure 3 ), but kept at Figure 2 The first position is shown. This is especially advantageous when the filling nozzle 20 is closed in an airtight manner using a covering element after filling.

[0046] In the case of filling, even during the filling process, such as during the injection of lubricant, air can still be supplied (ventilated) through the filling nozzle 20, and the sealing element can of course remain closed even during the filling process. Figure 3 The closed position is shown. If needed (e.g., to hermetically close the filling nozzle 20 via the cap element after filling), the closing element 36 can also be rotated to the closed position after filling. Figure 2 The open position shown allows for ventilation through the intermediate space 26 during subsequent operation.

[0047] To provide particularly hygienic conditions and to prevent lubricant (e.g., lubricant that may escape from storage space 8 and enter intermediate space 26 during overfilling) from accumulating in intermediate space 26 and aging or contaminating the housing there, it is also preferable to insert a tubular element 44 into intermediate space 26, which guides excess lubricant or air toward opening 32. The tubular element 44 is preferably releasably disposed in intermediate space 26 and oriented toward second closure element opening 40 during filling. The spatial orientation of closure element 36 can be achieved by corresponding markings on the housing or latch position.

[0048] To hold and secure the tubular element 44 in space within the intermediate space, an attachment structure 46 is provided in the opening 32 of the bottom element 30. This attachment structure 46 interacts with the attachment structures on the tubular element 44. For example, the attachment structures 46, 48 can be configured as follows: Figure 2 , 3 The thread is shown. The tubular element 44 can therefore be easily screwed into the intermediate space 26. Of course, other attachment elements are also possible for both the tubular element 44 and the closing element 36. Therefore, for example, a bayonet connector or a simple press seat can also be used. Alternatively, the tubular element itself may not include an attachment structure and may be held in the intermediate space using a separate threaded element that interacts with the attachment structure 46. In this case, the threaded element includes a through opening, allowing for ventilation.

[0049] Figures 4 to 6 Different types of lubricant pumps are shown, with the following discussion focusing primarily on those related to... Figures 1 to 3 The differences in the casing shown. Here, regarding... Figures 1 to 3 All the features described also apply to the lubricant supply device in this exemplary embodiment.

[0050] and Figures 1 to 3 Compared to the shell shown, in Figures 4 to 6 In the housing 2 shown, filling is not performed from above, but from below via filling nozzles 20 disposed in the bottom wall 30 (see also...). Figure 2 , 3 (And arrows in 5 and 6). The schematic depiction does not show the fluid connection to the storage space 8. Furthermore, this type of lubricant pump includes a so-called follower plate 50, which separates the lubricant storage space 8 from the air space 52 disposed thereon. The follower plate 50 rests on the lubricant contained in the lubricant storage space 8 and follows the surface of the lubricant. This is especially true in… Figure 5 and 6 As shown in the figure, Figure 5 A fully filled lubricant pump is shown, while Figure 6 This shows that a certain proportion of lubricant has been pumped out.

[0051] also, Figures 4 to 6 A double-walled structure consisting of sidewalls 12 and an outer wall 14 is shown in sequence, both also equipped with a venting device 22, wherein a first opening 24 fluidly connects the intermediate space 26 to the storage space 8. Similarly, Figures 4 to 6In the exemplary embodiment shown, the venting device 22 provides a dual function during filling; on the one hand, it allows air to escape from the air space 52, thereby preventing overpressure in the container; on the other hand, it makes it possible for lubricant to escape in the event of overfilling. For this purpose, an opening 24 is provided on the container such that at the highest position of the follower plate 50, a seal 54 disposed on the edge of the follower plate 50 exposes the first opening 24, thereby fluidly connecting the intermediate space 26 to the lubricant storage space 8 via the first opening 24. Thus, lubricant can be transferred from the lubricant storage space 8 and the opening 24 into the intermediate space 26, thereby preventing overfilling.

[0052] Conversely, in normal operation (see...) Figure 6 The ventilation device makes it possible for air to flow into the air space 52 through the intermediate space 26. Therefore, with Figure 2 , 3 On the contrary, Figure 5 and 6 In the exemplary embodiment shown, in all operating states, a fluid connection is provided through a closure element 36 between the second closure element opening 40 and the intermediate space 24, wherein the closure element 36 is substantially held in a position that allows the second closure element opening 40 to fluidly connect to the intermediate space 26.

[0053] Regarding the other components shown in the figure, refer to... Figures 1 to 3 The description.

[0054] In summary, the lubricant pump described here can be used to provide venting or overfill protection. This pump is simple in construction, does not damage, and is not installed externally.

[0055] List of reference numerals

[0056] 1. Lubricant supply device

[0057] 2. Shell

[0058] 4 flanges

[0059] 6. Motor receiving space

[0060] 8. Lubricant storage space

[0061] 12a, b sidewalls

[0062] 14a, 14b outer wall

[0063] 16 Motor Space Separation

[0064] 18 Pump Space

[0065] 20 Filling nozzle

[0066] 22 Ventilation device

[0067] 24 First Opening

[0068] 26a, b Intermediate space

[0069] 28a, b Covering walls

[0070] 30a, b Bottom wall

[0071] 32. Openings in the bottom wall

[0072] 34. Openings in the outer wall

[0073] 36 Enclosed Components

[0074] 38 First closing element opening

[0075] 40 Second closing element opening

[0076] 42 Enclosed component wall

[0077] 44 Tubular elements

[0078] 46. ​​Attachment Structure

[0079] 48. Attachment Structure

[0080] 50 Follower Board

[0081] 52 Air Space

[0082] 54 Seals

Claims

1. A housing (2) for a lubricant supply device (1) for supplying a viscous medium to a consumer, wherein the housing (2) is configured to form at least one storage space (8) for the viscous medium and receive a delivery pump for pumping the viscous medium from the storage space (8) to a medium outlet, characterized in that, The housing (2) includes at least one storage space sidewall (12a), a storage space bottom wall (30a), and a storage space cover wall (28a) defining a storage space (8) for a medium, and includes a storage space outer wall (14a) that at least partially surrounds, is spaced apart from, and forms an intermediate space (26a) such that the housing (2) is at least partially configured as a double wall, and at least one first opening (24) is further provided in the storage space sidewall (12a) that fluidly connects the storage space (8) of the housing (2) to the first intermediate space (26).

2. The housing (2) according to claim 1, wherein, The first intermediate space (26a) is at least partially enclosed by a cover wall and / or a bottom wall.

3. The housing according to claim 1, wherein, The housing (2) further includes a pump space sidewall (12b), a pump space bottom wall (30b), and a pump space cover wall (28b) defining a pump receiving space (18) for receiving the delivery pump, and also includes a pump space outer wall (14b) that at least partially surrounds, is spaced apart from, and forms a second intermediate space (26b) around the pump space sidewall (12b).

4. The housing (2) according to claim 3, wherein, The second intermediate space (26b) is at least partially enclosed by a cover wall and / or a bottom wall.

5. The housing according to claim 3 or 4, wherein, The storage space sidewall (12a) and the pump space sidewall (12b) are constructed as one unit, and the storage space outer wall (12a) and the pump space outer wall (14b) are constructed as one unit, such that the first and second intermediate spaces (26a, 26b) form a continuous intermediate space (26).

6. The housing according to claim 3 or 4, wherein, The bottom wall (28a) of the storage space forms the covering wall (30b) of the pump space.

7. The housing according to claim 5, wherein, The continuous intermediate space (26) is at least partially enclosed by the covering wall and / or the bottom wall.

8. The housing (2) according to claim 5, wherein, The housing (2) includes at least one additional opening (32; 34) that fluidly connects the first, second, or consecutive intermediate spaces (26a; 26b; 26) to the external environment, thereby providing a ventilation device (22) via the first, second, or consecutive intermediate spaces (26a; 26b; 26) through which the storage space (8) exchanges air with the external environment.

9. The housing (2) according to claim 8, wherein, At least one of the at least one additional opening (32) is formed in the bottom wall (30a; 30b; 30) that at least partially closes the first, second, or continuous intermediate space (26a; 26b; 26).

10. The housing (2) according to claim 9, wherein, A tubular element (44) is introduced into the first, second, or consecutive intermediate space (26), which fluidly connects the first opening (24) to another opening formed in the bottom wall that at least partially closes the intermediate space (26).

11. The housing (2) according to claim 10, wherein, An opening (21) in the bottom wall (30a; 30b; 30) that at least partially closes the first, second, or continuous intermediate spaces (26a; 26b; 26) is equipped with an attachment structure (46) that interacts with a complementary attachment structure (48) formed on the tubular element (44).

12. The housing (2) according to claim 1, wherein, At least one of the at least one additional opening (34) is formed in the outer wall of the storage space and / or the outer wall of the pump space, wherein the first opening (24) and the opening (34) in the outer wall of the storage space (14a) form through openings (24, 34) through the outer wall of the storage space (14a) and the side wall of the storage space (12a).

13. The housing (2) according to claim 12, wherein, A sealing element (36) is inserted into the opening (34), the sealing element (36) being configured to close the opening (34) in the outer wall (14a) of the storage space and / or the outer wall (14b) of the pump space.

14. The housing (2) according to claim 13, wherein, The closure element (36) is formed to include through openings (24; 34) through the outer wall (14a) and side wall (12a) of the storage space, and is configured as a closed hollow body, and includes first and second closure element openings (38, 40), wherein the first closure element opening (38) is fluidly connected to the first opening (24), and the second closure element opening (40) is fluidly connected to the intermediate space (26), such that the closure element (36) is also configured to provide a fluid connection between the first opening (24) and the intermediate space (26).

15. The housing (2) according to any one of claims 13 to 14, wherein, The closure element (36) is insertable and / or rotatable and / or releasable attached to the through openings (32, 34) in multiple locations.

16. The housing (2) according to claim 2, wherein, The storage space covering wall (28a) and / or the storage space bottom wall (30a) at least partially enclose the first intermediate space (26a).

17. The housing (2) according to claim 3, wherein the pump receiving space and the storage space (8) are configured relative to each other such that the first intermediate space (26a) and the second intermediate space (26b) form a continuous intermediate space (26).

18. The housing (2) according to claim 4, wherein, The pump space covering wall (28b) and / or the pump space bottom wall (30b) at least partially enclose the second intermediate space (26b).

19. The housing (2) according to claim 7, wherein, The storage space covering wall (28a) and / or the pump space bottom wall (30b) at least partially enclose the continuous intermediate space (26).

20. The housing (2) according to claim 12, wherein, The at least one additional opening (34) is formed in the outer wall of the storage space opposite to the first opening (24).

21. The housing (2) according to claim 14, wherein, The second closure element opening (40) is fluidly connected to the tubular element (44) inserted into the intermediate space (26), such that the closure element (36) is also configured to provide a fluid connection between the first opening (24) and the tubular element (44).

22. A lubricant supply device (1) for supplying a viscous medium to a consumer, comprising a housing (2) according to any of the preceding claims.

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