Exhaust device and muffler system
By designing a muffler device with a plate-shaped base and edge in the exhaust system, the exhaust chamber is divided into multiple flow channels, which solves the shortcomings of noise reduction and airflow management in the prior art and achieves more efficient noise suppression and flow management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZF CV SYST EURO BV
- Filing Date
- 2025-12-12
- Publication Date
- 2026-06-16
Smart Images
Figure CN122211348A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an exhaust device for a pressure supply system in a vehicle, particularly an electromagnetically regulated ABS valve. Such an exhaust device includes a body having an exhaust inlet port and an exhaust line, the exhaust inlet port for receiving exhaust flow, the exhaust line being in fluid communication with the exhaust inlet port and terminating in the exhaust port for discharging the exhaust flow in an exhaust direction. The exhaust device also includes a muffler system disposed in the exhaust line for damping the exhaust flow, comprising a muffler assembly and a sealing gasket, the muffler assembly defining an exhaust chamber extending upstream relative to the exhaust direction, and the sealing gasket being disposed adjacent to the muffler assembly. The invention also relates to a muffler system for an exhaust device of the aforementioned type and a muffler for such a muffler system. Background Technology
[0002] In the field of automotive engineering, particularly in systems involving pressure supply devices and exhaust mechanisms for vehicles, challenges related to noise reduction and efficient airflow management are common. Known systems often involve exhaust devices (e.g., as electromagnetically controlled ABS valves or similar components) that are responsible for discharging exhaust streams while attempting to minimize the noise generated during this process.
[0003] Existing exhaust systems typically consist of basic muffler systems relying on simple configurations, such as straight-through designs or basic chamber layouts, which may be insufficient to address the complexities of aerodynamics and noise suppression. These conventional approaches can lead to suboptimal performance, where noise reduction is inadequate or airflow is excessively restricted, thus impacting the overall efficiency of the vehicle's pressure supply system.
[0004] Another muffler system employing a sealing gasket and muffler assembly is known from WO 2024 / 110030 A1. This muffler assembly is defined by an exhaust cap, which is arranged and adapted such that the space between the sealing gasket and the exhaust cap forms an intermediate exhaust chamber before the pressurized air exits via an exhaust gap forming the exhaust port. This muffler system allows for the reduction of noise generated by the rapid expulsion of air, but there is still room for improvement in achieving the optimal balance between effective noise reduction and maintaining the necessary airflow efficiency. This is particularly relevant in the field of electric drives, where there is no combustion engine to mask the noise generated from the exhaust process. Summary of the Invention
[0005] Despite substantial progress in the field of exhaust systems for vehicle pressure supply systems, further improvements are still needed in noise reduction and airflow management. Therefore, the technical problem of this invention is to provide an exhaust system that at least partially overcomes the shortcomings of known systems.
[0006] This is where the invention comes in, wherein the object of the invention is to provide an exhaust device, muffler system and muffler device that overcomes one or more disadvantages of known systems.
[0007] The present invention achieves the initially stated objective through an exhaust device according to claim 1. Specifically, with respect to an exhaust device of the above type, the present invention proposes: the muffler device has a plate-shaped base and an edge portion, the plate-shaped base having a plurality of flow ports, the edge portion protruding relative to the base into the exhaust chamber, wherein the edge portion is adapted to divide the flow chamber into at least a first chamber region and a second chamber region, wherein the first chamber region has a first plurality of flow ports and defines a first flow channel from a distal inlet portion of the edge portion to the first plurality of flow ports, and the second chamber region has a second plurality of flow ports and defines a second flow channel from a distal inlet portion of the edge portion to the second plurality of flow ports. In particular, the first flow channel and the second flow channel are each configured to guide the exhaust flow at least partially orthogonal to the exhaust direction. An advantage of the present invention is improved noise reduction due to the muffler device having an edge portion, which allows for efficient division of the exhaust chamber into at least two chamber regions. Because each of the at least two chamber regions has a corresponding plurality of flow ports, the exhaust flow is divided into separate flow channels in which the exhaust flow is not only guided in the exhaust direction but also deflected from it, thereby reducing the exhaust velocity through the plurality of first and second flow ports. In other words, the edge divides the exhaust chamber into two distinct regions providing corresponding first or second flow channels in which the exhaust flow is deflected from its linear exhaust direction. This design ensures that the exhaust flow is effectively damped, thereby reducing noise and improving the overall performance of the vehicle's pressure supply system.
[0008] In other words, the present invention relates to an exhaust device designed for a pressure supply system of a vehicle, and more particularly to an electromagnetically regulated ABS valve. The device includes a body having an exhaust inlet port and an exhaust line, the exhaust inlet port for receiving exhaust flow, the exhaust line being fluidly connected to the exhaust inlet port and terminating at the exhaust port for discharging the exhaust flow in a specified exhaust direction. A muffler system is integrated into the exhaust line to dampen the exhaust flow. The system includes: a muffler assembly defining an exhaust chamber extending upstream relative to the exhaust direction; a sealing gasket positioned adjacent to the muffler assembly; and a locking member configured to secure at least the sealing gasket within the exhaust line. The muffler assembly is characterized by: a plate-shaped base having a plurality of flow ports; and an edge portion protruding relative to the base into the exhaust chamber. This edge portion is designed to divide the flow chamber into at least two regions: a first chamber region and a second chamber region. The first chamber region includes a first set of flow ports and defines a first flow channel from a distal inlet at the edge to the first set of flow ports. Similarly, the second chamber region includes a second set of flow ports and defines a second flow channel from a distal inlet at the edge to the second set of flow ports. Preferably, the muffler system further includes a locking member configured to secure at least the sealing gasket in the exhaust line.
[0009] The terminology used in this manual includes "exhaust system," which refers to the entire device used to manage the exhaust flow. "Pressure supply device" indicates a system that provides pressurized air, and "electromagnetic regulating ABS valve" specifies the type of exhaust system used in anti-lock braking systems. "Body" refers to the main structure of the device, while "exhaust inlet port" and "exhaust port" are openings for receiving and discharging air, respectively. Such an exhaust inlet port can be provided by the supply port of an ABS regulating solenoid valve. However, an exhaust system with only an exhaust inlet port and an exhaust port is also possible. "Silencer system" and "silencer device" refer to components designed to reduce noise from the exhaust flow. "Sealing gasket" is a sealing component, and "locking member" is the part that secures the gasket. "Flow port" is an opening that allows air to pass through, and "edge" is a protruding portion that helps divide the exhaust chamber.
[0010] Further advantageous developments of the invention are found in the dependent claims, and detailed indications are given of the advantageous possibilities for realizing the above concepts within the scope of the object and with regard to further advantages.
[0011] Preferably, the muffler assembly extends coaxially with the sealing gasket along a longitudinal axis, wherein the plurality of flow ports extend in the exhaust direction and are parallel to the longitudinal axis. This coaxial arrangement means that the muffler assembly and the sealing gasket share a common central axis, which can promote streamlined airflow and potentially improve the efficiency of the exhaust process. Coaxial alignment ensures that the muffler assembly and the sealing gasket are positioned in a manner that promotes direct and efficient interaction with the exhaust flow. The alignment of the flow ports with the exhaust direction and longitudinal axis suggests a design that minimizes turbulence and drag, thereby allowing exhaust to flow more efficiently through the assembly.
[0012] More preferably, the first chamber region and the second chamber region are formed symmetrically with respect to the axial direction. This symmetry contributes to a balanced airflow distribution within the exhaust chamber (particularly within the first and second chamber regions), thereby reducing noise and vibration by ensuring uniform distribution of exhaust gas across these flow ports. The symmetrical design also enhances the structural integrity of the muffler assembly by uniformly distributing mechanical stress.
[0013] Further preferably, the total surface area of the first plurality of flow ports and the second plurality of flow ports is at least 50%, preferably at least 60%, of the cross-sectional area of the exhaust line at the location where it is received at the base of the muffler assembly. The flow ports are functionally integrated with the muffler assembly, as they facilitate exhaust flow through the muffler system. By specifying that the total surface area of these flow ports is a significant percentage of the cross-sectional area of the exhaust line, sufficient capacity is ensured for exhaust flow through the muffler assembly without causing excessive back pressure. This is crucial for maintaining the efficiency of the exhaust system and ensuring that the muffler assembly effectively dampens exhaust noise. In other words, by ensuring that the flow ports occupy a large portion of the cross-sectional area of the exhaust line, this design minimizes the risk of airflow limitation, which could otherwise lead to performance problems. Additionally, this feature contributes to the overall durability and reliability of the exhaust assembly by reducing the likelihood of pressure-related stresses on components.
[0014] In a preferred embodiment, the base and the edge are integrally formed. This integral formation enhances the structural integrity and durability of the muffler assembly, potentially reducing the risk of component failure due to separation or misalignment. Additionally, integral formation simplifies the manufacturing process by eliminating the need for additional assembly steps connecting the base and edge. This can lead to cost savings and improved consistency in exhaust device production. This new feature also ensures a seamless transition between the base and edge, which improves flow dynamics within the exhaust chamber. The continuous structure allows for more precise control of the flow path defined by the first and second chamber regions, potentially resulting in more effective damping of the exhaust flow. This can lead to quieter operation of the exhaust device, which is particularly beneficial in applications such as electromagnetically controlled ABS valves where noise reduction is crucial. Furthermore, the integral formation of the base and edge facilitates a more compact design for the muffler assembly, as no additional space is required to accommodate the connections between individual components.
[0015] In a preferred embodiment, the body includes a pin that extends into the flow chamber and engages with the muffler assembly. Furthermore, the muffler assembly preferably has an inner skirt formed by the edge portion, which circumferentially surrounds the pin. Additionally, the muffler assembly may include a protrusion extending radially inward from the base, resting on a stop shoulder provided by the pin. The pin extending into the flow chamber and engaging with the muffler assembly ensures a secure and stable connection, which is crucial for maintaining the alignment and positioning of the muffler assembly within the exhaust line. The inner skirt formed by the edge portion circumferentially surrounding the pin provides an additional stabilizing layer and ensures that the muffler assembly remains properly positioned and aligned during operation. The protrusion extending radially inward from the base and resting on the stop shoulder provided by the pin further secures the muffler assembly in place.
[0016] In another preferred embodiment, the inner skirt has several ribs that project radially inward and rest on the pin. The ribs on the inner skirt are designed to extend inward and contact the pin, thereby providing a structural interface between the two components. This interaction ensures proper alignment and stability of the inner skirt within the exhaust system. The ribs provide a means of distributing forces and maintaining the structural integrity of the inner skirt, which is crucial for the effective operation of the muffler system within the exhaust line. By incorporating these ribs, this design addresses potential problems associated with vibration and movement within the exhaust system, thereby improving the reliability and service life of the exhaust system.
[0017] In a preferred embodiment, the edge portion is configured to radially divide the exhaust chamber into a first chamber region and a second chamber region. In the context of the independent claim, the muffler device includes an edge portion that protrudes into the exhaust chamber and is adapted to divide the flow chamber into at least a first chamber region and a second chamber region. Radial division means that the edge portion extends outward from a central axis, thereby effectively dividing the chamber into different radial segments defining the at least one first chamber region and the second chamber region. Alternatively, the edge portion is configured to tangentially divide the exhaust chamber into the first chamber region and at least one second chamber region. Tangential division suggests that the edge portion is oriented in a manner that divides the chamber tangentially, thereby creating separate regions aligned with the tangential direction relative to the geometry of the chamber. By radially dividing the exhaust chamber, the exhaust device can manage the distribution of exhaust flow across the radial segments of the chamber, thereby optimizing the damping effect and noise reduction capability of the muffler system. On the other hand, tangential division allows for different flow patterns, which is also beneficial for guiding the exhaust flow in a manner that enhances muffler performance by controlling the deflection of the exhaust flow from the exhaust direction.
[0018] In a preferred embodiment, the edge portion has an outer skirt extending circumferentially coaxially with the longitudinal axis, the outer skirt being configured to divide the exhaust chamber such that the second chamber region defines an outer annular second chamber region surrounding the first chamber region. This configuration of the outer skirt divides the exhaust chamber in a manner that results in the formation of the outer annular second chamber region. This second chamber region surrounds the first chamber region, which is a distinct spatial arrangement. The introduction of the outer skirt and its coaxial extension provides a mechanism for dividing the exhaust chamber into concentric regions, wherein the second chamber region surrounds the first chamber region. By providing first and second flow channels, each defined by a corresponding concentric region, this structural arrangement can significantly influence the flow dynamics and acoustic characteristics of the exhaust device. By defining the outer annular second chamber region, the claims suggest the potential enhancement of exhaust flow distribution and management. The concentric division of the chamber regions promotes more controlled and efficient damping of the exhaust flow. Furthermore, the coaxial and circumferential nature of the extension of the outer skirt suggests a design that can be symmetrically and uniformly distributed about the longitudinal axis, which contributes to a balanced and uniform flow distribution.
[0019] In a preferred embodiment, the outer skirt is arranged coaxially with and radially offset from the inner skirt. This configuration means that the outer and inner skirts share a common central axis, ensuring alignment along the same longitudinal line. However, the radial offset indicates an intentional gap between the two skirts in the radial direction, meaning the outer skirt is positioned at a distance from the inner skirt, rather than directly contacting or overlapping it. This arrangement of the skirts can affect the flow dynamics within the exhaust chamber. By aligning the skirts coaxially, the exhaust flow can be distributed more evenly around the central axis, potentially reducing turbulence and enhancing the damping effect of the muffler system. The radial offset further ensures a defined gap between the skirts, creating a first chamber region.
[0020] Preferably, the muffler assembly is at least partially formed of a polymer material. Compared to conventional materials such as metals, the use of polymer materials in the construction of the muffler assembly provides excellent resistance to various chemicals and environmental factors. Additionally, the incorporation of polymer materials can contribute to a reduction in the overall weight of the exhaust system, which is beneficial for vehicle performance and fuel efficiency. Furthermore, the use of polymer materials can provide additional design flexibility, allowing for more complex shapes and configurations that can enhance silencing performance or facilitate easier integration into the exhaust piping.
[0021] In a preferred embodiment, the base rests securely on a sealing gasket. This interaction ensures a strong and airtight connection between the muffler assembly and the sealing gasket, which is crucial for maintaining the integrity of the exhaust system's silencing function. The sealing interaction prevents any potential leakage of the exhaust flow. Furthermore, securely resting the base on the sealing gasket contributes to the stability and durability of the exhaust system, as it minimizes the risk of muffler components shifting or becoming misaligned during operation.
[0022] Preferably, the base has a front side facing the sealing gasket, the front side having an axially projecting sealing line that rests securely on the sealing gasket. This interaction between the sealing line and the sealing gasket ensures a tight seal, which is necessary for the proper functioning of the exhaust device. The sealing line thus enhances the sealing capability of the exhaust device by providing a stronger and more effective seal between the base and the sealing gasket.
[0023] Further preferably, the muffler device is positioned upstream of the sealing gasket in the exhaust direction. The upstream location of the muffler device means that it encounters the exhaust flow before the sealing gasket does. This positioning allows the muffler device to perform its primary function of damping the exhaust flow before it reaches the sealing gasket. The sealing gasket is then positioned to further manage flow characteristics after initial damping has occurred. This sequence ensures that the exhaust flow first undergoes noise reduction and flow regulation provided by the muffler device, which includes a plate-shaped base with multiple flow ports and an edge protruding into the exhaust chamber. The edge divides the flow chamber into at least a first chamber region and a second chamber region, each with its corresponding multiple flow ports and flow channels. By arranging the muffler device upstream, the exhaust flow is effectively managed in stages, where the first stage involves the division and regulation of flow through the chamber regions and flow ports of the muffler device, while the second stage involves the sealing gasket, which can provide additional damping or sealing effects. This sequential arrangement enhances the overall noise reduction and flow management capabilities of the exhaust system, resulting in improved performance in reducing exhaust noise and more precise control of the exhaust flow. Preferably, a locking member is provided for securing at least the sealing gasket in the exhaust line to ensure that the components are held in their designated positions, thereby maintaining the structural and functional integrity of the exhaust device.
[0024] The invention addresses the initially stated objective in a second aspect by means of a muffler device according to claim 14. Specifically, according to the second aspect, the invention proposes that the muffler device be configured to be arranged in an exhaust line to dampen exhaust flow exiting in the exhaust direction. When the muffler device is arranged in the exhaust line, it defines an exhaust chamber extending upstream relative to the exhaust direction. The muffler device is characterized by: a plate-shaped base having a plurality of flow ports; and an edge portion protruding relative to the base into the exhaust chamber. The edge portion is adapted to divide the flow chamber into at least a first chamber region and a second chamber region. The first chamber region includes a first plurality of flow ports and defines a first flow passage from a distal inlet portion of the edge portion to the first plurality of flow ports. The second chamber region includes a second plurality of flow ports and defines a second flow passage from a distal inlet portion of the edge portion to the second plurality of flow ports. By providing a muffler device having an edge portion for dividing the exhaust chamber into at least different chamber regions having corresponding first plurality of flow ports and second plurality of flow ports, the muffler device has the same benefits as described with respect to the first aspect of the invention. Therefore, the benefits and preferred embodiments of the first aspect are also the benefits and preferred embodiments of the second aspect of the present invention.
[0025] The invention addresses the initially stated objective in a third aspect by means of a muffler system according to claim 15. Specifically, according to the third aspect, the invention proposes that the muffler device be specifically designed for a vehicle's exhaust system, the exhaust system being configured to be arranged in an exhaust line for the purpose of damping exhaust flow exiting in a specified exhaust direction. The muffler system includes a muffler device, a sealing gasket, and preferably includes a locking member. The muffler device is designed according to a second aspect of the invention. By having such a muffler device, the muffler system has the same benefits as those described with respect to the first and second aspects of the invention. Therefore, the benefits and preferred embodiments of the first and second aspects are also the benefits and preferred embodiments of the third aspect of the invention.
[0026] The invention, in its fourth aspect, addresses the initially stated objective through a vehicle (particularly a commercial vehicle) having a pressure supply device and an exhaust system (particularly an electromagnetically regulated ABS valve) according to the first aspect of the invention. By providing an exhaust system according to the first aspect of the invention, the vehicle possesses the same benefits as described with respect to the first aspect of the invention. Therefore, the benefits and preferred embodiments of the first aspect are simultaneously the benefits and preferred embodiments of the fourth aspect of the invention.
[0027] These and other aspects of the invention will be apparent from the embodiments described below and will be set forth with reference to the embodiments described below.
[0028] Embodiments of the invention are described below based on the accompanying drawings, in comparison with the state of the art, which is also partially illustrated. The latter is not necessarily intended to represent the embodiments to scale. For illustrative purposes, the drawings are shown schematically and / or with slight modifications. For additions of teachings readily identifiable from the drawings, refer to the relevant prior art. It should be remembered that many modifications and changes to the form and details of the embodiments are possible without departing from the general concept of the invention. The features of the invention disclosed in the specification, drawings, and claims may be necessary for further development of the invention (alone or in any combination). Furthermore, all combinations of at least two features disclosed in the specification, drawings, and / or claims fall within the scope of the invention.
[0029] The general concept of the present invention is not limited to: the exact form or details of the preferred embodiments shown and described below; or the subject matter that would be limited compared to the subject matter claimed in the claims.
[0030] For a given design range, the values within the specified limits of these ranges are also disclosed as limit values, and are therefore arbitrarily applicable and claimable. Attached Figure Description
[0031] The following figures illustrate:
[0032] Figure 1 : An example of a vehicle;
[0033] Figure 2 A cross-sectional view of an embodiment of an exhaust system for a vehicle, showing the arrangement of the main body, exhaust inlet port, exhaust line, muffler system, sealing gasket, locking member and other components;
[0034] Figure 3 :according to Figure 2 Detailed view of the exhaust system;
[0035] Figure 4a An embodiment of a silencer device having a plate-shaped base and multiple flow ports, shown in a front view;
[0036] Figure 4b According to the rear view Figure 4a Silencer device;
[0037] Figure 4c According to the perspective view viewed from the front side Figure 4a The silencer device; and
[0038] Figure 4d According to the perspective view Figure 4a The muffler device is shown at the distal end. Detailed Implementation
[0039] Figure 1 The vehicle V (particularly a commercial vehicle CV) is shown, which has a pressure supply device 3, which has an exhaust device (not shown), as described below. Figure 2 and Figure 3 As described.
[0040] Figure 2 Shown for use in vehicles (see) Figure 1 The pressure supply device includes an exhaust device 1. This exhaust device 1 can be configured as an electromagnetically controlled ABS valve 2. The exhaust device 1 includes a body 10 having: an exhaust inlet port 150 for receiving exhaust flow FE; and an exhaust line 120 in fluid communication with the exhaust inlet port 150. The exhaust line 120 terminates in an exhaust port 130 for discharging the exhaust flow FE in the exhaust direction E.
[0041] The exhaust device 1 preferably also has an inlet port 110 configured to be in fluid communication with a supply line (not shown), wherein the exhaust inlet port 150 is configured as a supply port 150' for supplying pressurized air to a pneumatic system (not shown). For the pneumatic system (not shown) to discharge, the supply port 150' receives exhaust flow FE directed to the exhaust line 120.
[0042] The electromagnetic regulating ABS valve 2 is designed to operate in three states:
[0043] In the pressure-filled state, the pneumatic system (not shown) is filled with pressurized air received via inlet tank 110 and directed to supply port 150. In the pressure-holding state, the flow from inlet tank 110 to supply port 150 is blocked. In the pressure-released state, the flow from inlet tank 110 to supply port 150 is blocked, and the flow from exhaust inlet port 150', which is designed as supply port 150, is directed to exhaust port 130.
[0044] The exhaust system 1 also includes a muffler system 20. The muffler system 20 is arranged within the exhaust line 120 to dampen the exhaust flow FE. The muffler system 20 includes a muffler assembly 210 defining an exhaust chamber 211 extending upstream relative to the exhaust direction E. A sealing gasket 220 of the muffler system 20 is arranged adjacent to the muffler assembly 210, and a locking member 230 is configured to secure at least the sealing gasket 220 within the exhaust line 120.
[0045] The muffler assembly 210 extends coaxially with the sealing gasket 220 along the longitudinal axis L, wherein the plurality of flow ports extend in the exhaust direction E and are parallel to the longitudinal axis L.
[0046] As in Figure 3 As specifically shown in the detailed view, the muffler device 210 has a plate-shaped base 212 and an edge portion 213. The plate-shaped base 212 has a plurality of flow ports, and the edge portion 213 protrudes relative to the base 212 into the exhaust chamber 211. The edge portion 213 divides the flow chamber into at least a first chamber region 215.1 and a second chamber region 215.2. The first chamber region 215.1 includes a first plurality of flow ports 214.1 and defines a first flow channel 216.1 from the distal inlet 217 of the edge portion 213 to the first plurality of flow ports 214.1. The second chamber region 215.2 includes a second plurality of flow ports 214.2 and defines a second flow channel 216.2 from the distal inlet 217 of the edge portion 213 to the second plurality of flow ports 214.2.
[0047] The first chamber region 215.1 and the second chamber region 215.2 are formed symmetrically with respect to the axial direction. The total surface area A of the first plurality of flow ports 214.1 and the second plurality of flow ports 214.2 is at least 50%, preferably at least 60%, of the cross-sectional area C of the exhaust line 120 at the receiving base 212.
[0048] The muffler assembly 210 is preferably constructed at least partially of a polymer material PM and is coaxially positioned along the longitudinal axis L. The flow port extends in the exhaust direction E and is parallel to the longitudinal axis L. The base 212 and the edge portion 213 are integrally formed, thereby enhancing the structural integrity of the muffler assembly 210.
[0049] The main body 10 includes a pin 140 that extends into the flow chamber and engages with a muffler device 210. The muffler device 210 is characterized by an inner skirt 218.1 and a protrusion 219. The inner skirt 218.1 is formed by an edge portion 213 that circumferentially surrounds the pin 140, and the protrusion 219 extends radially inward from a base 212, thereby resting on a stop shoulder 141 provided by the pin 140. The inner skirt 218.1 has several ribs 218.1a that project radially inward and rest on the pin 140.
[0050] Edge portion 213 is configured to radially divide exhaust chamber 211 into a first chamber region 215.1 and a second chamber region 215.2. Alternatively, edge portion 213 may tangentially divide exhaust chamber 211 into a first chamber region 215.1 and at least one second chamber region 215.2. Edge portion 213 includes an outer skirt portion 218.2 extending coaxially with longitudinal axis L in the circumferential direction, thereby dividing exhaust chamber 211 such that the second chamber region 215.2 forms an outer annular region surrounding the first chamber region 215.1. The outer skirt portion 218.2 is arranged coaxially with and radially offset from the inner skirt portion 218.1.
[0051] The base 212 rests securely on the sealing gasket 220. The base 212 has a front surface 212a facing the sealing gasket 220, which has an axially projecting sealing line 212b that rests securely on the sealing gasket 220. The muffler device 210 is arranged upstream of the sealing gasket 220 in the exhaust direction E.
[0052] In summary, the exhaust system 1 is designed to efficiently manage and dampen the exhaust flow FE in the vehicle's pressure supply system, thereby providing enhanced performance and noise reduction.
[0053] Figure 4aA top view of a muffler device 210 preferably formed of polymer material PM is shown. The muffler device 210 includes a base 212 having a front surface 212a and an annularly formed, axially projecting sealing line 212b. The base 212 includes a first plurality of flow ports 214.1 disposed in a first chamber region 215.1 and a second plurality of flow ports 214.2 disposed in a second chamber region 215.2. The first plurality of flow ports 214.1 and the second plurality of flow ports 214.2 are each uniformly distributed within their respective chamber regions 215.1 and 215.2. The first plurality of flow ports 214.1 are centrally located, while the second plurality of flow ports 214.2 are circumferentially arranged around the central flow port of the first plurality of flow ports 214.1. This arrangement of the flow ports facilitates exhaust flow through the muffler device 210.
[0054] Figure 4b A view of the muffler assembly 210 as seen from its distal inlet 217 is shown, providing a more detailed view of its internal structure. The muffler assembly 210 is characterized by an edge portion 213 that protrudes relative to the base 212 into the exhaust chamber (not shown). This edge portion 213 divides the exhaust chamber into a first chamber region 215.1 and a second chamber region 215.2. The first chamber region 215.1 is defined by an inner skirt portion 218.1, which is arranged coaxially with and radially offset from an outer skirt portion 218.2. The second chamber region 215.2 surrounds the first chamber region 215.1 and is defined by the outer skirt portion 218.2.
[0055] The inner skirt 218.1 has several radially inwardly projecting ribs 218.1a, which rest on a pin (not shown). The base 212 also includes a protrusion 219 extending radially inward from the base 212, which rests on a stop shoulder 141 provided by the pin 140 (not shown). This configuration ensures that the muffler assembly 210 is securely engaged with the pin 140, thereby maintaining its position within the exhaust line.
[0056] The flow ports 214.1 and 214.2 are arranged symmetrically with respect to the axial direction, thereby allowing efficient distribution of exhaust flow through the muffler device 210. A first flow passage 216.1 is defined from the distal inlet 217 of the edge portion 213 to the first plurality of flow ports 214.1, while a second flow passage 216.2 is defined from the distal inlet 217 of the edge portion 213 to the second plurality of flow ports 214.2. This arrangement facilitates the division of exhaust flow into separate paths, thereby enhancing the damping effect of the muffler device 210.
[0057] Figure 4cA perspective view of the muffler device 210 is shown, with the plate-shaped base 212 facing upwards. The base 212 has a front surface 212a with an axially projecting sealing line 212b configured to rest sealingly on a sealing gasket. An edge portion 213 protrudes relative to the base 212 and is integrally formed with the base 212.
[0058] Figure 4d Another perspective view of the muffler assembly 210 is shown, providing additional detail. The edge portion 213 is shown as comprising an inner skirt portion 218.1 and an outer skirt portion 218.2. The inner skirt portion 218.1 is formed by the edge portion 213 and circumferentially surrounds the pin 140 (not shown in this figure). The inner skirt portion 218.1 has several ribs 218.1a that project radially inward and rest on the pin 140. The outer skirt portion 218.2 extends coaxially with the longitudinal axis L in the circumferential direction and is configured to divide the exhaust chamber such that a second chamber region 215.2 defines an outer annular second chamber region surrounding the first chamber region 215.1.
[0059] In summary, the present invention relates to an exhaust device (particularly an electromagnetically controlled ABS valve) for a pressure supply device of a vehicle, comprising: a body having an exhaust line terminating in an exhaust port for discharging an exhaust flow; and a muffler system disposed in the exhaust line for damping the exhaust flow. The muffler system includes a muffler assembly and a sealing gasket defining an exhaust chamber extending upstream relative to the exhaust direction, the sealing gasket being disposed adjacent to the muffler assembly. The invention proposes that the muffler assembly has a plate-shaped base and an edge portion projecting from the plate-shaped base into the exhaust chamber, wherein the edge portion is adapted to divide the flow chamber into at least a first chamber region and a second chamber region, the first chamber region having a first plurality of flow ports, and the second chamber region having a second plurality of flow ports, each chamber region defining a flow passage from a distal inlet portion of the edge portion to a corresponding plurality of flow ports among the first or second plurality of flow ports.
[0060] By studying the accompanying drawings, the disclosure, and the appended claims, those skilled in the art will be able to understand and implement other variations of the disclosed embodiments in practicing the claimed invention.
[0061] In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality.
[0062] A single unit or device can perform the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used advantageously.
[0063] Any reference numerals in the claims should not be construed as limiting the scope.
[0064] List of reference numerals (part of the instruction manual)
[0065] 1. Exhaust device
[0066] 2 ABS valve
[0067] 3. Pressure supply device
[0068] 10 main body
[0069] 20. Silencer System
[0070] 110 Entry Port
[0071] 120 exhaust pipe
[0072] 130 Exhaust Port
[0073] 140 sales
[0074] 141. Stabilizing the shoulder.
[0075] 150 Exhaust Inlet Port
[0076] 150' supply port
[0077] 210 Silencer Device
[0078] 211 Exhaust Chamber
[0079] 212 Base
[0080] 212a Front
[0081] 212b Sealing Line
[0082] 213 Edge
[0083] 214.1 First Multiple Flow Ports
[0084] 214.2 Second Multiple Flow Ports
[0085] 215.1 First Room Area
[0086] 215.2 Second Room Area
[0087] 216.1 First Flow Channel
[0088] 216.2 Second Flow Channel
[0089] 217 Distant entrance
[0090] 218.1 Inner skirt
[0091] 218.2 Outer skirt
[0092] 218.1a Rib
[0093] 219 Protrusion
[0094] 220 sealing gasket
[0095] 230 Locking component
[0096] FE exhaust flow
[0097] V vehicle
[0098] CV Commercial Vehicles
[0099] E Exhaust direction
[0100] L longitudinal axis
[0101] A Total surface area
[0102] C Cross-sectional area
[0103] PM Polymer Materials
[0104] M Installation location.
Claims
1. An exhaust device (1) for a pressure supply device (3) of a vehicle (V), particularly an electromagnetically adjustable ABS valve (2), comprising: The main body (10) has an exhaust inlet port (150) and an exhaust line (120), the exhaust inlet port (150) being used to receive exhaust flow (FE), the exhaust line (120) being in fluid communication with the inlet port (150) and terminating in an exhaust port (130), the exhaust port (130) being used to discharge the exhaust flow (FE) in the exhaust direction (E); A muffler system (20), arranged in the exhaust line (120) for damping the exhaust flow (FE), includes a muffler assembly (210) and a sealing gasket (220), the muffler assembly (210) defining an exhaust chamber (211) extending upstream relative to the exhaust direction (E), and the sealing gasket (220) being arranged adjacent to the muffler assembly (210). The muffler device (210) is characterized in that it has a plate-shaped base (212) and an edge portion (213), the plate-shaped base (212) having a plurality of flow ports (214.1, 214.2), and the edge portion (213) protruding relative to the base (212) into the exhaust chamber (211), wherein the edge portion (213) is adapted to divide the flow chamber (211) into at least a first chamber region (215.1) and a second chamber region (215.2). The first chamber region (215.1) has a first plurality of flow ports (214.1) and defines a first flow channel (216.1) from the distal inlet (217) of the edge portion (213) to the first plurality of flow ports (214.1). The second chamber region (215.2) has a second plurality of flow ports (214.2) and defines a second flow channel (216.2) from the distal inlet (217) of the edge portion (213) to the second plurality of flow ports (214.2).
2. The exhaust device (1) according to claim 1, in, The muffler device (210) extends coaxially with the sealing gasket (220) along the longitudinal axis (L), wherein the plurality of flow ports (214.1, 214.2) extend in the exhaust direction (E) and parallel to the longitudinal axis (L).
3. The exhaust device (1) according to any one of the preceding claims, in, The total surface area (A) of the first plurality of flow ports (214.1) and the second plurality of flow ports (214.2) is at least 50%, particularly at least 60%, of the cross-sectional area (C) of the exhaust line (120) at the installation position (M), where the base (212) is received.
4. The exhaust device (1) according to any one of the preceding claims, in, The base (212) and the edge (213) are integrally formed.
5. The exhaust device (1) according to any one of the preceding claims, in, The body (10) includes a pin (140) that extends into the flow chamber and engages with the muffler device (210), wherein the muffler device (210) preferably has at least one of the following: Inner skirt (218.1), which is formed by the edge portion (213) and surrounds the pin (140) circumferentially; A protrusion (219) extends radially inward from the base (212) and rests on a stop shoulder (141) provided by the pin (140).
6. The exhaust device (1) according to claim 5, in, The inner skirt (218.1) has a number of ribs (218.1a) that project radially inward and rest on the pin (140).
7. The exhaust device (1) according to any one of the preceding claims, in, The edge portion (213) is configured to radially divide the exhaust chamber (211) into a first chamber region (215.1) and a second chamber region (215.2), or The edge portion (213) is configured to tangentially divide the exhaust chamber (211) into a first chamber region (215.1) and at least one second chamber region (215.2).
8. The exhaust device (1) according to any one of claims 1 to 6, in, The edge portion (213) has an outer skirt portion (218.2) that extends in the circumferential direction coaxial with the longitudinal axis (L), the outer skirt portion (218.2) being configured to divide the exhaust chamber (211) such that the second chamber region (215.2) defines an outer annular second chamber region (215.2) surrounding the first chamber region (215.1).
9. The exhaust device (1) according to claim 8, in, The outer skirt (218.2) is arranged coaxially with the inner skirt (218.1) and is radially offset from the inner skirt (218.1).
10. The exhaust device (1) according to any one of the preceding claims, in, The muffler device (210) is at least partially formed of a polymer material (PM).
11. The exhaust device (1) according to any one of the preceding claims, in, The base (212) rests securely on the sealing gasket (220).
12. The exhaust device (1) according to claim 11, in, The base (212) has a front side (212a) facing the sealing gasket (220), the front side (212a) having an axially protruding sealing line (212b) that is sealed on the sealing gasket (220).
13. The exhaust device (1) according to any one of the preceding claims, in, The muffler device (210) is arranged upstream of the sealing gasket (220) in the exhaust direction (E).
14. A muffler device (210) for an exhaust system (1) of a pressure supply device (3) for a vehicle (V), particularly for an electromagnetically adjustable ABS valve (2), said muffler device (210) being specifically used for an exhaust system (1) according to any one of claims 1 to 13, wherein, The muffler device (210) is configured to be arranged in the exhaust line (120) to dampen the exhaust flow (FE) discharged in the exhaust direction (E), and is configured to define an exhaust chamber (211) extending upstream relative to the exhaust direction (E) when arranged in the exhaust line (120). Its features are, The muffler device (210) has a plate-shaped base and an edge portion (213), the plate-shaped base having a plurality of flow ports, and the edge portion (213) protruding relative to the base (212) into the exhaust chamber (211), wherein the edge portion (213) is adapted to divide the flow chamber into at least a first chamber region (215.1) and a second chamber region (215.2). The first chamber region (215.1) has a first plurality of flow ports (214.1) and defines a first flow channel (216.1) from the distal inlet (217) of the edge portion (213) to the first plurality of flow ports. The second chamber region (215.2) has a second plurality of flow ports (214.2) and defines a second flow channel (216.2) from the distal inlet (217) of the edge portion (213) to the second plurality of flow ports.
15. A muffler system (20) for an exhaust system (1) of a vehicle (V), said muffler system (20) being configured to be arranged in an exhaust line (120) of said exhaust system (1) for damping exhaust flow (FE) discharged in the exhaust direction (E), The silencer system (20) includes: The silencer device (210) according to claim 14; and A sealing gasket (220) is arranged adjacent to the muffler device (210).