WO2018228082A1 - 用于汽车排气系统中的阀 - Google Patents

用于汽车排气系统中的阀 Download PDF

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Publication number
WO2018228082A1
WO2018228082A1 PCT/CN2018/085779 CN2018085779W WO2018228082A1 WO 2018228082 A1 WO2018228082 A1 WO 2018228082A1 CN 2018085779 W CN2018085779 W CN 2018085779W WO 2018228082 A1 WO2018228082 A1 WO 2018228082A1
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Prior art keywords
valve
valve cover
elastic member
flap
cover
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PCT/CN2018/085779
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English (en)
French (fr)
Inventor
刘健
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天纳克（苏州）排放系统有限公司
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Publication of WO2018228082A1 publication Critical patent/WO2018228082A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/12—Covers for housings

Definitions

  • the invention relates to a valve used in an exhaust system of an automobile, and is in the technical field of exhaust gas aftertreatment.
  • No. 5,971,098 discloses a valve for use in an exhaust system of an automobile, wherein the valve includes a base, a valve cover, and a torsion spring that presses against the base and the valve cover.
  • this design has a relatively high requirement for the torsion spring.
  • the structure of such a valve is relatively complicated, which is not conducive to improving assembly efficiency.
  • a valve for use in an exhaust system of an automobile including a valve seat and a valve cover assembly cooperating with the valve seat, the valve seat being provided with a row An air opening, the bonnet assembly is rotatable relative to the vent opening between a covered position and an open position, the bonnet assembly being rotated by way of snapping.
  • the valve cover assembly includes a valve cover and a blocking piece fixed to the valve seat at least at one end, the valve cover being capable of being in the covering position relative to the exhaust opening Rotating between the open positions, the flap is provided with a catching portion for holding the valve cover and an elastic member for pressing the valve cover;
  • the elastic member applies a holding force to the valve cover such that the valve cover covers the exhaust opening;
  • the bonnet is opened to a certain angle to the open position when the exhaust pressure exceeds the retaining force of the resilient member.
  • one end of the elastic member is fixed on the valve cover, and the other end of the elastic member is fixed on the blocking piece or slidable relative to the blocking piece.
  • the elastic member is integrally stamped from the baffle.
  • the blocking piece is further provided with a limiting portion that presses the valve cover at the open position to limit the valve cover.
  • the limiting portion is integrally stamped from the blocking piece.
  • the latching portion and the valve cover are snapped together by a movable manner.
  • the blocking piece is provided with a flat plate portion fixed on the valve seat and an inclined portion extending from the flat plate portion, and the valve cover is inclined in the plane in which it is located The Ministry is under pressure.
  • one end of the valve cover is provided with a convex portion extending to both sides, the convex portion is provided with a front end surface and a rear end surface, wherein the rear end surface abuts against the tilt a plurality of extending portions extending downwardly from the extending portion and a hook portion bent inwardly from the extending portion, wherein the extending portion abuts against the front end surface, the hook portion A gasket is placed under the valve cover, and the valve cover is restrained between the hook portions.
  • extension portion and the hook portion are combined into an L shape.
  • the extension portion and the hook portion are formed by punching and bending from both sides of the flap.
  • the bonnet assembly includes a valve cover and an elastic member that cooperates with the valve cover to provide a retaining force, and one end of the valve cover is snap-fitted to the valve seat by a movable manner. Having the valve cover rotatable relative to the exhaust opening between the covered position and the open position, wherein:
  • the elastic member applies a holding force to the valve cover such that the valve cover covers the exhaust opening;
  • valve cover When the exhaust pressure exceeds the retaining force of the elastic member, the valve cover is opened to a certain angle to the open position.
  • the invention has a simple structure by providing a holding structure, and can be realized by simple mechanical assembly, which greatly reduces the cost.
  • Figure 1 is a perspective view of a valve for use in an exhaust system of an automobile of the present invention, wherein the valve cover is in a covering position.
  • Figure 2 is a perspective view of another angle of Figure 1.
  • Fig. 3 is a front view of Fig. 1.
  • Figure 4 is an exploded view of Figure 3.
  • Figure 5 is a perspective view of Figure 1 with the valve cover in an open position.
  • Fig. 6 is a front view of Fig. 5;
  • Figure 7 is a perspective view of the valve cover of Figure 1.
  • Figure 8 is a perspective view of the valve cover and the flap of Figure 1 assembled together.
  • the present invention discloses a valve 100 for use in an automotive exhaust system that includes a valve seat 1 and a valve cover assembly that mates with the valve seat 1.
  • the bonnet assembly includes a valve cover 2 that mates with the valve seat 1 and a flap 3 that is at least one end secured to the valve seat 1.
  • the valve seat 1 is provided with an exhaust opening 11 (shown in Figure 5).
  • the bonnet assembly is rotated by means of a snap.
  • the bonnet assembly in the illustrated embodiment of the invention, is in particular a bonnet 2 that can be in a covering position (for example Figure 1) and an open position relative to the venting opening 11 ( For example, Figure 5) rotates between.
  • One end of the flap 3 is provided with a flat plate portion 31 fixed to the valve seat 1 and an inclined portion 32 extending from the flat plate portion 31.
  • the inclined portion 32 is provided with a holding portion 33 adjacent to the flat plate portion 31 for holding the valve cover 2 .
  • the flap 3 is further provided with a limiting portion 34 that presses the valve cover 2 in the open position to limit the valve cover 2.
  • the limiting portion 34 is integrally stamped from the flap 3.
  • the limiting portion 34 can also be made separately from the flap 3 and then fixed together.
  • the valve cover 2 is pressed against the inclined portion 32 in the plane in which it is located, that is, in the horizontal plane shown in FIG. 1, the valve cover 2 is pressed against the inclined portion 32.
  • the flap 3 is further provided with a resilient member 35 for pressing against the valve cover 2.
  • One end 351 of the elastic member 35 is fixed to the valve cover 2, and the other end 352 of the elastic member 35 is fixed to the flap 3 or slidable relative to the flap 3.
  • the elastic member 35 is integrally stamped from the flap 3.
  • the elastic member 35 applies a holding force to the valve cover 2 such that the valve cover 2 covers the exhaust opening 11; on the other hand, when the exhaust pressure exceeds When the retaining force of the elastic member 35 is maintained, the valve cover 2 is opened to a certain angle to the open position.
  • the limiting portion 34 can limit the rotation angle of the valve cover 2 .
  • one end of the valve cover 2 is provided with a convex portion 21 extending to both sides, and the convex portion 21 is provided with a front end surface 211 and a rear end surface 212, wherein the rear end surface 212 abuts against the inclined portion 32.
  • the holding portion 33 includes an extending portion 331 extending downward from the two sides of the blocking piece 3 and a hook portion 332 bent inwardly from the extending portion 331 , wherein the extending portion 331 is resisted by the hook portion 332
  • the hook portion 332 is cushioned under the valve cover 2, and the valve cover 2 is restrained between the hook portions 332.
  • the extension portion 331 and the hook portion 332 are combined in an L shape.
  • the extending portion 331 and the hook portion 332 are formed by punching and bending from both sides of the flap 3 .
  • the catch portion 33 is snap-fitted with the valve cover 2 in a movable manner to facilitate assembly.
  • the “activity mode” described herein means that mechanical fixing methods such as welding and riveting are not used.
  • the bonnet assembly includes a valve cover 2 and an elastic member (not shown) that cooperates with the valve cover 2 to provide a retaining force.
  • One end of the valve cover 2 is snap-fitted to the valve seat 1 in a movable manner such that the valve cover 2 is rotatable relative to the exhaust opening 11 between the covering position and the open position.
  • a through hole may be disposed in the valve seat 1 , and the valve cover 2 is provided with a pivoting portion that is retained in the through hole to achieve a snap connection.
  • the elastic member may be a tension spring connected between the valve cover 2 of the valve seat. among them:
  • the elastic member applies a holding force to the valve cover 2 such that the valve cover 2 covers the exhaust opening 11;
  • valve cover 2 When the exhaust pressure exceeds the retaining force of the elastic member, the valve cover 2 is opened to a certain angle to the open position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lift Valve (AREA)

Abstract

一种用于汽车排气系统中的阀（100），该阀（100）包括阀座（1）以及与阀座（1）相配合的阀盖组件；阀座（1）设有排气开口（11），阀盖组件能够相对于排气开口（11）在覆盖位置与打开位置之间转动，其中阀盖组件通过卡持的方式实现转动。通过这样的设置，阀结构简单且易于装配。

Description

用于汽车排气系统中的阀
本申请要求了申请日为2017年6月14日、申请号为201710446380.5、发明名称为“用于汽车排气系统中的阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种用于汽车排气系统中的阀，处于尾气后处理技术领域。
背景技术
US 5,971,098揭示了一种应用于汽车排气系统中的阀，其中所述阀包括基座、阀盖以及抵压在所述基座与所述阀盖上的扭簧。然而，由于汽车排气系统中的热环境与振动环境等非常复杂，这种设计对扭簧的要求比较高。另外，这种阀的结构相对比较复杂，不利于提高装配效率。
因此，有必要设计出一种新型的阀，以解决上述技术问题。
发明内容
本发明的目的在于提供一种结构简单且易于装配的用于汽车排气系统中的阀。
为实现上述目的，本发明采用如下技术方案：一种用于汽车排气系统中的阀，所述阀包括阀座以及与所述阀座相配合的阀盖组件，所述阀座设有排气开口，所述阀盖组件能够相对于所述排气开口在覆盖位置与打开位置之间转动，所述阀盖组件通过卡持的方式实现转动。
作为本发明进一步改进的技术方案，所述阀盖组件包括阀盖以及至少一端固定在所述阀座上的挡片，所述阀盖能够相对于所述排气开口在所述覆盖位置与所述打开位置之间转动，所述挡片设有卡持所述阀盖的卡持部以及用以抵压所述阀盖的弹性元件；其中：
在所述覆盖位置处，所述弹性元件对所述阀盖施加保持力使得所述阀盖覆盖所述排气开口；
当排气压力超过所述弹性元件的保持力时，所述阀盖被打开一定的角度至所述打开位置。
作为本发明进一步改进的技术方案，所述弹性元件的一端固定在所述阀盖上，所述弹性元件的另一端固定在所述挡片上或者可相对于所述挡片滑动。
作为本发明进一步改进的技术方案，所述弹性元件是自所述挡片一体冲压而成。
作为本发明进一步改进的技术方案，所述挡片还设有在所述打开位置处抵压所述阀盖以对所述阀盖进行限位的限位部。
作为本发明进一步改进的技术方案，所述限位部是自所述挡片一体冲压而成。
作为本发明进一步改进的技术方案，所述卡持部与所述阀盖通过活动方式卡扣在一起。
作为本发明进一步改进的技术方案，所述挡片设有固定在所述阀座上的平板部以及自所述平板部延伸的倾斜部，所述阀盖在其所在的平面内与所述倾斜部相抵压。
作为本发明进一步改进的技术方案，所述阀盖的一端设有向两侧延伸的凸起部，所述凸起部设有前端面以及后端面，其中所述后端面抵靠在所述倾斜部上；所述挡片的两侧分别设有向下延伸的延伸部以及自所述延伸部向内弯折的勾部，其中所述延伸部抵挡在所述前端面上，所述勾部垫在所述阀盖的下方，所述阀盖被限制在所述勾部之间。
作为本发明进一步改进的技术方案，所述延伸部与所述勾部合起来呈L形。
作为本发明进一步改进的技术方案，所述延伸部与所述勾部是自所述挡片的两侧冲压、弯折形成的。
作为本发明进一步改进的技术方案，所述阀盖组件包括阀盖以及与所述阀盖相配合以提供保持力的弹性件，所述阀盖的一端通过活动方式卡扣在所述阀座，使得所述阀盖能够相对于所述排气开口在所述覆盖位置与所述打开位置之间转动，其中：
在所述覆盖位置处，所述弹性件对所述阀盖施加保持力使得所述阀盖覆盖所述排气开口；
当排气压力超过所述弹性件的保持力时，所述阀盖被打开一定的角度至所述打开位置。
本发明通过设置卡持结构，结构简单；且通过简单的机械装配就能实现，极大地降低了成本。
附图说明
图1是本发明用于汽车排气系统中的阀的立体图，其中阀盖处于覆盖位置。
图2是图1另一角度的立体图。
图3是图1的主视图。
图4是图3的分解图。
图5是图1的立体图，其中阀盖处于打开位置。
图6是图5的主视图。
图7是图1中阀盖的立体示意图。
图8是图1中阀盖与挡片装配在一起的立体示意图。
具体实施方式
请参图1至图8所示，本发明揭示了一种用于汽车排气系统中的阀100，所述阀100包括阀座1以及与所述阀座1相配合的阀盖组件。其本发明图示的实施方式中，所述阀盖组件包括与所述阀座1相配合的阀盖2以及至少一端固定在所述阀座1上的挡片3。所述阀座1设有排气开口11(如图5所示)。所述阀盖组件通过卡持的方式实现转动。根据排气压力的不同，所述阀盖组件，在本发明图示的实施方式中具体地为阀盖2，能够相对于所述排气开口11在覆盖位置(例如图1)与打开位置(例如图5)之间转动。
所述挡片3的一端设有固定于所述阀座1上平板部31以及自所述平板部31延伸的倾斜部32。所述倾斜部32设有靠近所述平板部31的卡持部33，所述卡持部33用以卡持所述阀盖2。所述挡片3还设有在所述打开位置处抵压所述阀盖2以对所述阀盖2进行限位的限位部34。在本发明图示的实施方式中，所述限位部34是自所述挡片3一体冲压而成。当然，在其他实施方式中，所述限位部34也可以与挡片3分开制作，然后再固定到一起。所述阀盖2在其所在的平面内与所述倾斜部32相抵压，即在图1所示的水平面内，所述阀盖2与倾斜部32相抵压。
所述挡片3还进一步设有用以抵压所述阀盖2的弹性元件35。所述弹性元件35的一端351固定在所述阀盖2上，所述弹性元件35的另一端352固定在所述挡片3上或者可相对于所述挡片3滑动。在本发明图示的实施方式中，所述弹性元件35是自所述挡片3一体冲压而成。
如此设置，一方面，在所述覆盖位置处，所述弹性元件35对所述阀盖2施加保持力使得所述阀盖2覆盖所述排气开口11；另一方面，当排气压力超过所述弹性元件35的保持力时，所述阀盖2被打开一定的角度至所述打开位置。所述限位部34能够对阀盖2的转动角度起到限位作用。在所述弹性元件35的另一端352固定在所述挡片3上时，随着阀盖2的转动，所述弹性元件35会发生变形。这种变形积蓄着当排气压力变小时用以复位所述阀盖2的力。另外，当所述弹性元件35可相对于所述挡片3滑动时，随着阀盖2的转动，所述弹性元件35会发生变形，所述弹性元件35的另一端352向图1中的右上角滑动。弹性元件35的这种变形同样积蓄着当排气压力变小时用以复位所述阀盖2的力。
在本发明图示的实施方式中，所述阀盖2的一端设有向两侧延伸的凸起部21，所述凸起部21设有前端面211以及后端面212，其中所述后端面212抵靠在所述倾斜部32上。所述卡持部33包括自所述挡片3的两侧分别向下延伸的延伸部331以及自所述延伸部331向内弯折的勾部332，其中所述延伸部331抵挡在所述前端面211上，所述勾部332垫在所述阀盖2的下方，所述阀盖2被限制在所述勾部332之间。在本发明图示的实施方式中，所述延伸部331与所述勾部332合起来呈L形。所述延伸部331与所述勾部332是自所述挡片3的两侧冲压、弯折形成的。
在本发明图示的实施方式中，所述卡持部33与所述阀盖2通过活动方式卡扣在一起，以便于装配。需要说明的是，这里所述的“活动方式”是指不采用焊接、铆接等机械固定方式。
另外，在其他实施方式中，所述阀盖组件包括阀盖2以及与所述阀盖2相配合以提供保持力的弹性件(未图示)。所述阀盖2的一端通过活动方式卡扣在所述阀座1，使得所述阀盖2能够相对于所述排气开口11在所述覆盖位置与所述打开位置之间转动。其中可以在所述阀座1上设有通孔，所述阀盖2设有卡持在所述通孔中的枢接部，以实现卡扣连接。所述弹性件可以为连接在所述阀座所述阀盖2之间的拉簧。其中：
在所述覆盖位置处，所述弹性件对所述阀盖2施加保持力使得所述阀盖2覆盖所述排气开口11；
当排气压力超过所述弹性件的保持力时，所述阀盖2被打开一定的角度至所述打开位置。
以上实施例仅用于说明本发明而并非限制本发明所描述的技术方案，对本说明书的理解应该以所属技术领域的技术人员为基础，尽管本说明书参照上述的实施例对本发明已进行了详细的说明，但是，本领域的普通技术人员应当理解，所属技术领域的技术人员仍然可以对本发明进行修改或者等同替换，而一切不脱离本发明的精神和范围的技术方案及其改进，均应涵盖在本发明的权利要求范围内。

Claims (12)

  1. 一种用于汽车排气系统中的阀，所述阀包括阀座以及与所述阀座相配合的阀盖组件，所述阀座设有排气开口，所述阀盖组件能够相对于所述排气开口在覆盖位置与打开位置之间转动，其特征在于：所述阀盖组件通过卡持的方式实现转动。
  2. 如权利要求1所述的阀，其特征在于：所述阀盖组件包括阀盖以及至少一端固定在所述阀座上的挡片，所述阀盖能够相对于所述排气开口在所述覆盖位置与所述打开位置之间转动，所述挡片设有卡持所述阀盖的卡持部以及用以抵压所述阀盖的弹性元件；其中：
    在所述覆盖位置处，所述弹性元件对所述阀盖施加保持力使得所述阀盖覆盖所述排气开口；
    当排气压力超过所述弹性元件的保持力时，所述阀盖被打开一定的角度至所述打开位置。
  3. 如权利要求2所述的阀，其特征在于：所述弹性元件的一端固定在所述阀盖上，所述弹性元件的另一端固定在所述挡片上或者可相对于所述挡片滑动。
  4. 如权利要求3所述的阀，其特征在于：所述弹性元件是自所述挡片一体冲压而成。
  5. 如权利要求2所述的阀，其特征在于：所述挡片还设有在所述打开位置处抵压所述阀盖以对所述阀盖进行限位的限位部。
  6. 如权利要求5所述的阀，其特征在于：所述限位部是自所述挡片一体冲压而成。
  7. 如权利要求1至6项中任意一项所述的阀，其特征在于：所述卡持部与所述阀盖通过活动方式卡扣在一起。
  8. 如权利要求7所述的阀，其特征在于：所述挡片设有固定在所述阀座上的平板部以及自所述平板部延伸的倾斜部，所述阀盖在其所在的平面内与所述倾斜部相抵压。
  9. 如权利要求8所述的阀，其特征在于：所述阀盖的一端设有向两侧延伸的凸起部，所述凸起部设有前端面以及后端面，其中所述后端面抵靠在所述倾斜部上；所述挡片的两侧分别设有向下延伸的延伸部以及自所述延伸部向内弯折的勾部，其中所述延伸部抵挡在所述前端面上，所述勾部垫在所述阀盖的下方，所述阀盖被限制在所述勾部之间。
  10. 如权利要求9所述的阀，其特征在于：所述延伸部与所述勾部合起来呈L形。
  11. 如权利要求10所述的阀，其特征在于：所述延伸部与所述勾部是自所述挡片的两侧冲压、弯折形成的。
  12. 如权利要求1所述的阀，其特征在于：所述阀盖组件包括阀盖以及与所述阀盖相配合以提供保持力的弹性件，所述阀盖的一端通过活动方式卡扣在所述阀座，使得所述阀盖能够相对于所述排气开口在所述覆盖位置与所述打开位置之间转动，其中：
    在所述覆盖位置处，所述弹性件对所述阀盖施加保持力使得所述阀盖覆盖所述排气开口；
    当排气压力超过所述弹性件的保持力时，所述阀盖被打开一定的角度至所述打开位置。
PCT/CN2018/085779 2017-06-14 2018-05-07 用于汽车排气系统中的阀 WO2018228082A1 (zh)

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CN111022711A (zh) * 2019-12-18 2020-04-17 天纳克（苏州）排放系统有限公司 排气阀

Citations (5)

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US5801343A (en) * 1993-11-09 1998-09-01 Futaba Industrial Co., Ltd. Muffler for internal combustion engine
CN201705474U (zh) * 2010-06-09 2011-01-12 上海天纳克排气系统有限公司 Scr催化转换器低温控制自适应阀门
CN103656902A (zh) * 2012-09-03 2014-03-26 上海港凯净化制品有限公司 一种呼吸阀结构
CN205479533U (zh) * 2016-01-27 2016-08-17 耿立根 一种防油烟倒灌止回阀
CN207093182U (zh) * 2017-06-14 2018-03-13 天纳克（苏州）排放系统有限公司 用于汽车排气系统中的阀

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Publication number Priority date Publication date Assignee Title
US5801343A (en) * 1993-11-09 1998-09-01 Futaba Industrial Co., Ltd. Muffler for internal combustion engine
CN201705474U (zh) * 2010-06-09 2011-01-12 上海天纳克排气系统有限公司 Scr催化转换器低温控制自适应阀门
CN103656902A (zh) * 2012-09-03 2014-03-26 上海港凯净化制品有限公司 一种呼吸阀结构
CN205479533U (zh) * 2016-01-27 2016-08-17 耿立根 一种防油烟倒灌止回阀
CN207093182U (zh) * 2017-06-14 2018-03-13 天纳克（苏州）排放系统有限公司 用于汽车排气系统中的阀

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