CN216617704U - Exhaust gas recirculation EGR valve with sealing ring structure - Google Patents
Exhaust gas recirculation EGR valve with sealing ring structure Download PDFInfo
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- CN216617704U CN216617704U CN202123184431.2U CN202123184431U CN216617704U CN 216617704 U CN216617704 U CN 216617704U CN 202123184431 U CN202123184431 U CN 202123184431U CN 216617704 U CN216617704 U CN 216617704U
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Abstract
The utility model discloses an exhaust gas recirculation EGR valve with a sealing ring structure, which comprises: the valve body is vertically provided with an operating shaft assembly along the horizontal axis of the valve body, one end of an operating shaft of the operating shaft assembly is in contact with the through sleeve, and the operating shaft assembly is hermetically arranged at the inner hole of the through sleeve through a sealing ring; the middle part of an operating shaft of the operating shaft assembly is sleeved on the inner periphery of the valve plate; the other end of the operating shaft assembly is sleeved on the inner periphery of the blind sleeve; operating shaft and the logical cover of assembly on the valve body and blind set clearance fit, the during operation rotates in leading to the cover hole, and the sealing ring is in leading to cover hole interlude position, and the sealing ring excircle closely cooperates with the smooth interior pore wall of leading to the cover, handles the waste gas that flows through in the valve body, plays the sealed effect that prevents the internal waste gas of valve and leak, ensures EGR valve during operation, works all the time under normal operating mode. Compared with the original structure, the EGR valve has the advantages that the sealing effect is greatly improved, the sealing effect is good, the number of assembly parts is reduced, and the manufacturing cost of the EGR valve is reduced.
Description
Technical Field
The utility model relates to the technical field of automobile accessories, in particular to an exhaust gas recirculation EGR valve with a sealing ring structure.
Background
The EGR valve, also known as an exhaust gas recirculation system, is used to reduce the amount of nitrogen oxides in the exhaust gas discharged from a diesel engine, so that the amount of exhaust gas recirculation reaches an optimum condition at each operating point, thereby keeping the combustion process at an optimum condition all the time, and finally ensuring that the pollutant content in the exhaust gas is at a minimum to meet the emission standard.
Along with the implementation of the national six-emission standard of diesel engines, the application of the EGR technology is more and more extensive, in practical application, the performance of the EGR valve plays an important role in controlling the emission of the engine to reach the standard, wherein the external leakage amount of the EGR valve is an important technical parameter for measuring the performance of the EGR valve, and the exhaust gas recirculation EGR valve with the sealing ring structure can better avoid the large external leakage of the EGR valve and ensure that the external leakage value of the EGR valve is controlled within a controllable parameter.
The existing EGR valve for exhaust gas recirculation prevents the way of exhaust gas leakage, it adopts the method of sleeving a pressure spring and a plane sealing ring on the control shaft and sealing the end surface of the channel, the sealing effect is mainly guaranteed by the pressure of the pressure spring and the plane sealing ring to the end surface plane and the inner hole of the valve body outer sleeve, the sealing effect is poor, and it is easy to generate resistance to the rotation of the control shaft.
In the sealing structure for preventing the external leakage of the existing EGR valve, because certain acting force is applied to the control shaft assembly by the pressure spring and the sealing ring when sealing, larger friction force exists between the valve block and the valve body and between the valve block and the end face of the through sleeve, the rotating resistance of the control shaft assembly is increased, the valve block is easily clamped and stagnated in the rotating process, and meanwhile, the load of the motor driving the connecting rod to rotate is also increased, so that the working reliability of the EGR valve is influenced, and the normal work of the exhaust gas recirculation system is further influenced.
SUMMERY OF THE UTILITY MODEL
To overcome the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide an exhaust gas recirculation EGR valve of a sealing ring structure.
In order to realize the purpose of the utility model, the adopted technical scheme is as follows:
an Exhaust Gas Recirculation (EGR) valve of a sealing ring structure, comprising:
a valve body, a control shaft component is vertically arranged along the horizontal axis of the valve body,
one end of an operating shaft of the operating shaft assembly is in contact with the through sleeve and is hermetically sleeved at the inner hole of the through sleeve through a sealing ring;
the middle part of an operating shaft of the operating shaft assembly is sleeved on the inner periphery of the valve plate;
the other end of the operating shaft assembly is sleeved on the inner periphery of the blind sleeve;
operating shaft and the logical cover of assembly on the valve body and blind set clearance fit, the during operation rotates in leading to the cover hole, and the sealing ring is in leading to cover hole interlude position, and the sealing ring excircle closely cooperates with the smooth interior pore wall of leading to the cover, handles the waste gas that flows through in the valve body, plays the sealed effect that prevents the internal waste gas of valve and leak, ensures EGR valve during operation, works all the time under normal operating mode.
In a preferred embodiment of the present invention, the sealing rings are a first sealing ring and a second sealing ring which are matched up and down.
In a preferred embodiment of the present invention, the operating shaft is provided with a first seal groove and a second seal groove into which the first seal ring and the second seal ring are fitted.
In a preferred embodiment of the utility model, the middle part of the operating shaft is provided with a first pin and a second pin which are arranged up and down along the horizontal axis of the valve body.
In a preferred embodiment of the utility model, the valve plate is fixedly mounted on the steering shaft in the steering shaft assembly by the first pin and the second pin.
The utility model has the beneficial effects that:
1. compared with the original structure, the sealing ring type exhaust gas recirculation EGR valve structure provided by the utility model has the advantages that the sealing effect is greatly improved, and the sealing effect is good.
2. Compared with the original structure, the sealing ring type exhaust gas recirculation EGR valve structure provided by the utility model reduces the number of assembly parts, reduces the manufacturing cost of the EGR valve, and is beneficial to batch production.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the utility model and not to limit the scope of the utility model. Moreover, in the following structures, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description. And are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation and, therefore, should not be taken to be limiting of the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model discloses an exhaust gas recirculation EGR valve with a sealing ring structure, and relates to an exhaust gas recirculation EGR valve with a sealing ring structure, which is used for controlling the exhaust emission of an engine to exceed the standard in an automobile exhaust gas recirculation control system.
An EGR valve of a sealing ring structure shown in fig. 1 includes a valve body 1, and a control shaft assembly 2 vertically disposed along a horizontal axis of the valve body 1.
One end of an operating shaft 21 of the operating shaft component 2 is in contact with the through sleeve 4, and is specifically sleeved on an inner hole 41 of the through sleeve 4 in a sealing manner through a first sealing ring 31 and a second sealing ring 32 which are matched up and down.
A first seal groove 81 and a second seal groove 82 to which the first seal ring 31 and the second seal ring 32 are fitted are provided on the operating shaft 21.
The middle part of the operation shaft 21 of the operation shaft component 2 is sleeved on the inner periphery of the valve plate 6, and the other end of the operation shaft 21 of the operation shaft component 2 is sleeved on a groove 71 arranged on the inner periphery of the blind sleeve 7.
The operating shaft 21 of the operating shaft assembly 2 is in clearance fit with the through sleeve 4 and the blind sleeve 7 which are assembled on the valve plate 6, and rotates in an inner hole 41 of the through sleeve 4 during operation, and the first sealing ring 31 and the second sealing ring 32 are positioned in the middle position of the inner hole 41 of the through sleeve 4.
The middle part of the operating shaft 21 is provided with a first pin 51 and a second pin 52 up and down along the horizontal axis of the valve body 1.
The valve plate 6 is fixedly mounted on the operating shaft 21 of the operating shaft assembly 2 by a first pin 51 and a second pin 52.
The excircle of the first sealing ring 31 and the excircle of the second sealing ring 32 are tightly matched with the hole wall of the smooth inner hole 41 of the through sleeve 4, waste gas flowing through the valve body 1 is treated, the sealing effect of preventing the waste gas in the valve body 1 from leaking is achieved, and the EGR valve is ensured to work under normal working conditions all the time when working.
The operating shaft assembly 2 rotates in the through sleeve 4 and the blind sleeve 7 under the action of external force, and the operating shaft 21 drives the valve plate 6 fixed on the operating shaft assembly to flexibly rotate in inner holes of the through sleeve 4 and the blind sleeve 7, so that the whole structure is sealed to be opened and closed.
The basic principles and main features of the utility model and the advantages of the utility model have been shown and described above.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined by the appended claims and their equivalents.
Claims (5)
1. An Exhaust Gas Recirculation (EGR) valve of a sealing ring structure, comprising:
a valve body, a control shaft component is vertically arranged along the horizontal axis of the valve body,
one end of an operating shaft of the operating shaft assembly is in contact with the through sleeve and is hermetically sleeved at the inner hole of the through sleeve through a sealing ring;
the middle part of an operating shaft of the operating shaft assembly is sleeved on the inner periphery of the valve plate;
the other end of the operating shaft assembly is sleeved on the inner periphery of the blind sleeve;
operating shaft and the logical cover of assembly on the valve body and blind set clearance fit, the during operation rotates in leading to the cover hole, and the sealing ring is in leading to cover hole interlude position, and the sealing ring excircle closely cooperates with the smooth interior pore wall of leading to the cover, handles the waste gas that flows through in the valve body, plays the sealed effect that prevents the internal waste gas of valve and leak, ensures EGR valve during operation, works all the time under normal operating mode.
2. The EGR valve of claim 1, wherein the sealing ring is a first sealing ring and a second sealing ring which are engaged with each other.
3. The exhaust gas recirculation EGR valve of a seal ring structure according to claim 1, wherein the operating shaft is provided with a first seal groove and a second seal groove into which the first seal ring and the second seal ring are fitted.
4. The seal ring structured EGR valve in accordance with claim 1, wherein the operating shaft is provided with a first pin and a second pin at a middle portion thereof along an upper and lower horizontal axis of the valve body.
5. The exhaust gas recirculation EGR valve of a sealing ring structure in accordance with claim 1, wherein said valve plate is fixedly mounted on the steering shaft in the steering shaft assembly by means of a first pin and a second pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123184431.2U CN216617704U (en) | 2021-12-17 | 2021-12-17 | Exhaust gas recirculation EGR valve with sealing ring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123184431.2U CN216617704U (en) | 2021-12-17 | 2021-12-17 | Exhaust gas recirculation EGR valve with sealing ring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216617704U true CN216617704U (en) | 2022-05-27 |
Family
ID=81704364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123184431.2U Active CN216617704U (en) | 2021-12-17 | 2021-12-17 | Exhaust gas recirculation EGR valve with sealing ring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216617704U (en) |
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2021
- 2021-12-17 CN CN202123184431.2U patent/CN216617704U/en active Active
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