The utility model discloses the main body of the valve plate of the wastegate, which includes a pressing plate, the pressing plate includes a front pressing plate and a rear pressing plate, the rear pressing plate is provided with a connecting shaft, one end of the connecting shaft passes through the rear pressing plate and is provided with a mounting plate, an elastic part is arranged between the front pressing plate and the rear pressing plate, and a seal for filling the gap between the pressing plate and the pressure relief port is arranged on the outside of the elastic part, The valve disc main body of this wastegate is different from the prior art. Through the cooperative use of elastic parts and seals, when the valve disc is used to open and close the pressure relief port, the rear pressure plate is close to the pressure relief port and blocks it. At the same time, the front pressure plate constantly presses the spring, drives the front pressure plate to fit with the rear pressure plate, and makes the sealing ring squeeze and move to the side wall of the pressure relief port to fill the gap, so as to improve the air tightness. So as to improve the air tightness. So as to improve the air tightness< br/>
【技术实现步骤摘要】
废气旁通阀的阀片主体
[0001]本技术涉及废气旁通阀
,具体为废气旁通阀的阀片主体。
技术介绍
[0002]随着人们生活水平的提高,家用车辆得到了广泛普及,但是,这在一定程度上也使得环境污染日益严重,从而,现有的车辆大部分需要控制车辆的废气排放。在保证车辆动力性的前提下降低发动机排量是行之有效的节能减排方案之一,随着排量的降低,为了保证整车的动力性,涡轮增压器逐渐成为了发动机的标准配置,当涡轮增压器转速超速或增压比超过设计要求时,需要通过其它不经过废气涡轮的通道适时的将废气排出,为此,现有的蜗轮增压器通常设置有废气旁通阀,现有涡轮增压器废气旁通结构依靠压前与压后的增压压力差值,在不同的车辆行驶工况下通过ECU(车载电脑)来控制脉冲宽度调制(PWM)阀的开启角度实现废气旁通阀的开闭;
[0003]目前市场上增压器废气旁通结构均是通过阀盖在撑杆的控制下不断接触泄压口和远离泄压口进行开启与关闭,达到控制增压压力及转速的功能,而现有的旁通阀用于启闭泄压口,阀片侧壁与泄压口的端面抵接,当泄压口的压力超过设定值时,阀片远离泄压口,从而实现泄压口的开启,当阀片在泄压口处反复运动时,阀片的侧壁与泄压口的之间会有摩擦,碰撞时会造成阀片的侧壁磨损,导致阀片与泄压口抵接时侧壁会出现间隙,导致涡轮增压器整体的气密性变差,为此,我们提出废气旁通阀的阀片主体。
技术实现思路
[0004]本技术的目的在于提供废气旁通阀的阀片主体,以解决上述
技术介绍
中提出的问题。
[0005]为实现上述目的,本技术提供如下技术方 ...
【技术保护点】
【技术特征摘要】
1.废气旁通阀的阀片主体,包括压合片(1),其特征在于:所述压合片(1)包括前压片(11)和后压片(12),所述后压片(12)上设置有连接轴(2),所述连接轴(2)的一端穿过后压片(12)设置有安装板(3);所述前压片(11)和后压片(12)之间设置有的弹性件(4),所述弹性件(4)的外侧设置有用于填补压合片(1)和泄压口之间缝隙的密封件(5)。2.根据权利要求1所述的废气旁通阀的阀片主体,其特征在于:所述弹性件(4)包括设置在连接轴(2)外侧的弹簧(41),所述弹簧(41)的端分别与前压片(11)和后压片(12)连接,所述后压片(12)上设置有限位块(42)...
【专利技术属性】
技术研发人员:张勇,邵海波,李盛杰,
申请(专利权)人:余姚市纽吉尔汽车排放系统技术有限公司,
类型:新型
国别省市:
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