The invention provides a pressure maintaining device of an automobile vacuum braking system. The pressure maintaining device comprises a one-way valve, a main body and a pressure sensor, wherein an air outlet of the one-way valve is used for being connected with an external vacuum pump; a cavity is formed in the main body, and the main body is respectively provided with a one-way valve connecting port, a sensor connecting port and a booster connecting port; the one-way valve connector, the sensor connector and the booster connector are respectively communicated with the cavity, an air inlet of the one-way valve is connected with the one-way valve connector, and the booster connector is used for being connected with an external vacuum booster; the pressure sensor is provided with a detection head, the pressure sensor is fixed to the body, and the detection head is connected with the sensor connector in a sealed mode. The one-way valve and the pressure sensor are integrated on the main body, so the structure of the pressure maintaining device is more compact, the space occupied by the pressure maintaining device is saved, and leakage points of the device are also reduced.
本发明提供一种汽车真空制动系统压力保持装置,其包括有:单向阀、主体和压力传感器。所述单向阀的出气口用于连接外部的真空泵。所述主体内具有空腔,所述主体分别具有单向阀连接口、传感器连接口和助力器连接口。所述单向阀连接口、所述传感器连接口和所述助力器连接口分别与所述空腔相连通,所述单向阀的进气口与所述单向阀连接口相连接,所述助力器连接口用于连接外部的真空助力器。所述压力传感器具有检测头,所述压力传感器固定于所述主体,所述检测头与所述传感器连接口密封连接。通过将单向阀与压力传感器集成至主体上能够使压力保持装置的结构更为紧凑,节省了压力保持装置所占用的空间,也减少了装置的泄漏点。
Pressure maintaining device of automobile vacuum braking system
汽车真空制动系统压力保持装置
29.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Automobile vacuum booster automatic emergency braking system
Europäisches Patentamt | 2015
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