Pump valve unit
The modular pump valve unit with integrally formed pump holders and cassette modules addresses the complexity and space issues of heat transport medium circuits by providing a compact, expandable, and contractible solution that enhances efficiency and flexibility.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SCHAEFFLER TECHNOLOGIES AG & CO KG
- Filing Date
- 2024-07-09
- Publication Date
- 2026-07-23
AI Technical Summary
Existing heat transport medium circuits in automobiles are complex and require significant installation space due to the integration of multiple components like pumps and valves, which are often bonded or welded, leading to tolerance deviations and inefficiencies.
A modular pump valve unit comprising cassette-shaped modules with integrally formed pump holders and multi-way valves, allowing for a compact, expandable, and contractible design that simplifies the system by minimizing installation space and reducing tolerance issues.
The modular design simplifies heat transport medium circuits by reducing installation space requirements and minimizing tolerance deviations, enabling efficient use of minimal space while maintaining flexibility and functionality.
Smart Images
Figure 2026524652000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates in particular to a modular pump valve unit for a heat transport medium circuit or heat transport medium circuit system in an automobile. [Background technology]
[0002] Such a heat transport medium circuit or heat transport medium circuit system having multiple heating and cooling circuits has a number of components in the form of pumps and valves connected to one another via lines. [Overview of the project] [Problems that the invention aims to solve]
[0003] The object of the present invention is to simplify this type of heat transport medium circuit or heat transport medium circuit system. [Means for solving the problem]
[0004] This objective is achieved by the modular pump valve unit proposed and protected as asserted in claim 1.
[0005] The pump valve unit is For example, at least one pump for dispensing a coolant in the form of a water-glycol mixture, • At least one multi-way valve for selectively connecting channels for guiding coolant within the housing, particularly across different heights of the multi-way valve, or along the longitudinal axis or longitudinal range of the multi-way valve, • Individual housing sections, in the form of cassette modules or substantially cassette-shaped modules, which form a housing and are formed in a complementary manner on mutually opposing and interconnected sides, and which form a channel, wherein the housing section has a plurality of inlet and outlet openings for coolant on the suction side and pressure side, It has been proposed with the following characteristics.
[0006] In this case, a multi-way valve is accepted and connected to at least a first or further cassette module, and together with the first or further cassette module, a central cassette module is provided which forms a first channel.
[0007] It is also proposed that at least one pump holder for receiving the pump may be attached to or provided on the central cassette module. The pump holder is preferably integrally formed on the central cassette module. By providing the pump holder only on the central cassette module, the problem of tolerance deviations that would occur if such a pump holder were integrally bonded or welded to more than one of these cassette modules as an alternative is advantageously avoided. This problem is further exacerbated as a result of reheating of cassette modules that are already integrally bonded to each other, for example, welded.
[0008] The pump holder is integrally formed or molded on the central cassette module, i.e., the central cassette module is formed or molded integrally with the pump holder or as a single part, so advantageously, further parts are omitted in the form of the pump holder.
[0009] The proposed pump-valve unit advantageously forms a unit consisting of at least one pump, at least one valve, and a channel or line in the smallest possible space, and is also expandable or contractible as required. This greatly contributes to the simplification of heat transport medium circuits or heat transport medium circuit systems, requiring only minimal installation space.
[0010] In one embodiment, the first cassette module is also connected to a second cassette module, and together with the second cassette module, forms a second channel that is fluidly connected to the first channel.
[0011] In a further embodiment, the central cassette module is also connected to a third cassette module and, together with the third cassette module, forms a third channel.
[0012] In a further embodiment, the third cassette module is also connected to a fourth cassette module and, together with the fourth cassette module, forms a fourth channel that is fluidly connected to the third channel.
[0013] In one embodiment, the proposed pump valve unit has at least two pumps and at least two multi-way valves, and at least two pump holders for receiving the pumps are also integrally formed on the central cassette module. The central cassette module has a channel section through which a pump can suck up coolant through either the first cassette module or the second cassette module and send it to the third cassette module and the fourth cassette module, or the pump can suck up coolant through the third cassette module and the fourth cassette module and send it to the first cassette module and the second cassette module.
[0014] As an alternative thereto, at least one pump can suck up coolant through the first cassette module and the second cassette module via an associated channel section of the central cassette module and send it to the third cassette module and the fourth cassette module, and at least one further pump can suck up coolant through the third cassette module and the fourth cassette module and send it to the first cassette module and the second cassette module.
[0015] The second cassette module and the fourth cassette module each have a plurality or a large number of inlet openings and outlet openings through which individual coolant circuits can be connected to each other.
[0016] Therefore, the second cassette module and the fourth cassette module can form the suction side and / or the pressure side of the proposed pump valve unit, or at least one suction side housing section and / or at least one pressure side housing section, depending on the use of the pump.
[0017] It is proposed that the housing section of the pump is integrally formed or molded on the pump holder. The housing section may be in the form of a spiral housing.
[0018] The present invention will be explained in detail below with reference to examples in the drawings. Further advantageous developments of the present invention will become apparent from the following description of the dependent claims and the preferred embodiments.
Brief Description of the Drawings
[0019] [Figure 1] A side view of the proposed pump valve unit is shown. [Figure 2] A plan view of the pump valve unit shown in FIG. 1 is shown. [Figure 3] An exploded view of the pump valve unit shown in FIG. 1 is shown. [Figure 4] A first perspective view of the proposed central housing part is shown. [Figure 5] A second perspective view of the housing part shown in FIG. 4 is shown.
Embodiments for Carrying out the Invention
[0020] A modularly configured pump valve unit PVE is proposed, especially for an automotive heat transfer medium circuit or a heat transfer medium circuit system. The pump valve unit PVE has a box-shaped housing composed of individual housing parts G [Figure 3] , G1, G2, G3, G4, and the individual housing parts G ZG, G1, G2, G3, and G4 are in the form of a cassette module or a substantially cassette-shaped module. The housing has a plurality of inlet openings and outlet openings on the suction side and the pressure side, through which individual coolant circuits (not shown here) can be connected to each other.
[0021] The individual housing parts or cassette modules G Z , G1, G2, G3, and G4 are formed from plastic, for example, glass fiber reinforced plastic.
[0022] The cassette module is formed in a complementary manner to each other on mutually facing and interconnected side surfaces, particularly with respect to mutually facing wall sections that contact or are joined to each other and form coolant guide channels. The cassette module G Z , G1, G2, G3, and G4 are integrally joined or welded together along wall sections that contact or are joined to each other.
[0023] A central cassette module G Z is provided, in which, for example, three multi-way valves are accommodated. The cassette module G Z has a number of cavities, most of which guide the coolant. Some of these cavities, on the one hand, do not guide the coolant but contribute to the weight reduction of the cassette module G Z .
[0024] The multi-way valve includes a substantially cylindrical valve actuator whose associated cylindrical cavities in the cassette module G Z are only shown in Figure 3 and can be actuated electrically or electromechanically by associated adjustment or stepping motors SM1, SM2, SM3 to selectively connect coolant guide channels at different heights inside the cassette module G Z .
[0025] Cassette module G ZIt also includes, for example, three pump holders PH1, PH2, and PH3 for receiving the associated pumps P1, P2, and P3. The housing sections of the associated pumps P1, P2, and P3 are integrally formed on the individual pump holders PH1, PH2, and PH3. The housing sections are, for example, in the form of spiral housings.
[0026] Cassette Module G Z It is connected to the first cassette module G1 on the first side or the suction side, and together with the cassette module G1, forms the first channel. The cassette module G1 is then connected to the second cassette module G2, and in particular to the cassette module G Z It is connected on the opposite side, spaced apart from the first channel, and together with the cassette module G2, forms a second channel that is fluidly connected to the first channel.
[0027] Cassette Module G Z It is also connected to the third cassette module G3 on the second side or pressure side, and together with the third cassette module G3, forms a third channel. Cassette module G3 is, in turn, connected to the fourth cassette module G4, and in particular to cassette module G Z It is connected on the opposite side, spaced apart from the third channel, and together with the cassette module G4, forms a fourth channel that is fluidly connected to the third channel.
[0028] Furthermore, with respect to cassette modules G1, G2, G3, and G4, each has multiple cavities or forms the same as the joined or combined cassette module, the majority of which guides the coolant. Some of these cavities, on the other hand, do not guide the coolant and contribute to the weight reduction of the proposed pump valve unit PVE.
[0029] The proposed pump valve unit PVE thus constitutes a cassette-like modular structure of a housing or housing embodiment or design having a coolant guide channel. ZIn addition to coolant guide channels that together form or constitute G1, G2, G3, and G4, a sandwich-like structure can also be referred to.
[0030] The proposed pump valve unit PVE has the advantage of housing G Z Within G1, G2, G3, and G4, and therefore in the narrowest spaces, units of valves, pumps, and channels or lines can be formed, and are also expandable or contractible as needed. This greatly contributes to the simplification of heat transport medium circuits or heat transport medium circuit systems, requiring only minimal installation space.
[0031] Cassette Module G Z The proposed modular system in the forms of G1, G2, G3, and G4 enables the proposed types of pump valve units PVE, and their housing shape or design, in addition to the coolant guide channels, clearly cannot be manufactured as a single piece or component by casting due to its underlying complexity.
[0032] Figure 4 also shows housing section G Z The individual suction side channel sections or channels or suction channels 2, 4, and 6 are shown, and through these, the coolant is supplied by the individual spiral pumps P1, P2, P3 through two housing sections G1 and G2 to housing section G Z These channels 2, 4, and 6 allow the coolant to enter the associated spiral pumps P1, P2, and P3 axially, or to be drawn in axially by the associated spiral pumps P1, P2, and P3, into the housing G Z It leads to the associated axial channel sections 8, 10, and 12.
[0033] Figure 5 shows, on the other hand, housing section G Z The individual pressure-side channel sections or channels or outlet channels 14, 16, 18 are shown, through which the coolant is delivered or pushed into, for example, the associated multi-way valves, and the cassette module GZ Figure 5 shows only the associated cylindrical cavities, and it should be imagined that they contain substantially cylindrical valve actuators that can be operated electrically or motorically.
[0034] The two arrows shown in Figure 3 indicate radial discharge of (cooling) liquid into housing sections G3 and G4. The coolant can also be drawn up, for example, through associated multi-way valves and accordingly delivered or pressed radially into housing sections G3 and G4.
[0035] As an alternative to this, for example, spiral pumps P1 and P2 can be used in the housing section G Z Through the associated channel section, through the two housing sections G1 and G2, housing section G Z The coolant is drawn up and sent to two housing sections G3 and G4, and the spiral pump P3 is used to send the same coolant to the housing section G Z Through the associated channel section, through the two housing sections G3 and G4, housing section G Z It is proposed to draw up the coolant and send the same coolant to two housing sections G1 and G2.
[0036] Therefore, housing sections G1, G2 and housing sections G3, G4 form the suction and / or pressure side housing sections of the proposed pump valve unit PVE, depending on the use of spiral pumps P1, P2, P3. Housing sections G2 and G4 each include multiple or numerous openings or inlet and / or outlet openings through which individual coolant circuits can be connected to each other. The inlet and / or outlet openings are formed or molded between housing sections G1 and G2, and therefore housing section G Z , access to a second channel which is fluidly connected to a first channel formed or molded between G1, and formed or molded between housing parts G3, G4, for this reason housing part G ZThis allows access to a fourth channel that is fluidly connected to a third channel formed or molded between G3.
[0037] The modularity of the proposed pump valve unit PVE, as illustrated and proposed in Figures 1-3, consists of numerous individual housing parts G in the form of a cassette module or a substantially cassette-shaped module. Z The box-shaped housing, composed of G1, G2, G3, and G4, is advantageously expandable or contractible as desired. This includes pumps such as spiral pumps, valves, pump holders, and the central housing section G Z This means that the number of complementary housing units can be expanded as needed, or depending on the circumstances, as desired.
[0038] While exemplary embodiments have been described above, it should be noted that numerous modifications are possible. It should also be noted that the exemplary embodiments are merely examples and are not intended to limit the scope, applications, and structure. Instead, the above description provides guidelines to those skilled in the art for implementing at least one exemplary embodiment, and various modifications are possible with respect to the function and arrangement of the described component parts, in particular, without departing from the scope, as is evident from the claims and the combination of similar features.
Claims
1. A pump valve unit (PVE), At least one pump (P) for dispensing coolant １ , P ２ , P ３ )and, A multiway valve for selectively connecting channels that guide the coolant across different heights of the multiway valve inside the housing, The individual housing parts (G Ｚ , G １ , G ２ , G ３ , G ４ ) that form the housing and are formed in a complementary manner to each other on opposite and interconnected side surfaces, in the form of a cassette module that forms the channel, wherein the housing has a plurality of inlet openings and outlet openings on the suction side and the pressure side, housing parts (G Ｚ , G １ , G ２ , G ３ , G ４ ), and It has, The multi-way valve is accepted, and at least the first cassette module (G １ ) is connected to the first cassette module (G １ ) together with the central cassette module (G) that forms the first channel Ｚ ) is established, Pump valve unit.
2. The aforementioned pump (P １ , P ２ , P ３ ) at least one pump holder (PH １ PH ２ PH ３ ) also includes the central cassette module (G Ｚ The pump valve unit according to claim 1, integrally formed on top of ).
3. The first cassette module (G １ ) also includes a second cassette module (G ２ It is also connected to the second cassette module (G ２ The pump valve unit according to claim 1 or 2, further comprising a second channel that is fluidly connected to the first channel, together with the first channel.
4. The aforementioned central cassette module (G Ｚ ) also includes a third cassette module (G ３ It is also connected to the third cassette module (G ３ The pump valve unit according to claim 3, which together with the above, forms a third channel.
5. The third cassette module (G ３ ) also includes a fourth cassette module (G ４ It is also connected to the fourth cassette module (G ４ The pump valve unit according to claim 4, further comprising the third channel and a fourth channel which is fluidly connected to the third channel.
6. It has at least two pumps and at least two multi-way valves, and at least two pump holders for receiving the pumps also have the central cassette module (G Ｚ ) integrally formed on the central cassette module (G Ｚ ) The associated pump is the first cassette module (G １ ) and the second cassette module (G ２ The coolant is drawn up via the third cassette module (G ３ ) and the fourth cassette module (G ４ ) to and / or the third cassette module (G ３ ) and the fourth cassette module (G ４ The coolant is drawn up via the first cassette module (G １ ) and the second cassette module (G ２ The pump valve unit according to claim 5, having channel sections (2, 4, 6, 8, 10, 12, 14, 16, 18) that deliver to ).
7. The aforementioned pump (P １ , P ２ , P ３ The housing section of the pump holder (PH １ PH ２ PH ３ A pump valve unit according to any one of claims 1 to 6, integrally formed on top of ).
8. The pump valve unit according to claim 7, wherein the housing section is in the form of a spiral housing.