The valve element assembly comprises a main valve element assembly, an auxiliary valve element assembly and a first sealing piece, the main valve element assembly and the auxiliary valve element assembly tightly press the first sealing piece in the radial direction of the valve element assembly, the main valve element assembly comprises a first part and a second part which are arranged in a split mode, and the second part is provided with an auxiliary valve port; the first part and the second part form at least part of the wall of the first groove, at least part of the first sealing piece is located in the first groove, the second part abuts against the first step portion of the first part in the axial direction of the valve element assembly, and the second part makes contact with the first sealing piece or is arranged in a clearance mode. Compared with a pressing sleeve and a small valve needle which press the first sealing piece in the axial direction of the valve needle assembly, the first sealing piece is located in the first groove, in the axial direction of the valve element assembly, the second part abuts against the first step portion of the first part, the second part makes contact with the first sealing piece or is arranged in a clearance mode, and the risk that the first sealing piece falls off is reduced advantageously; and the sealing effect is improved.
一种阀芯组件及阀装置,包括主阀芯组件、副阀芯组件和第一密封件,沿阀芯组件的径向,主阀芯组件与副阀芯组件压紧第一密封件,主阀芯组件包括分体设置的第一部分和第二部分,第二部分具有副阀口,第一部分和第二部分形成第一槽的至少部分壁,第一密封件的至少部分位于第一槽,沿阀芯组件的轴向,第二部分与第一部分的第一台阶部抵接,第二部分与第一密封件接触或间隙设置,相较于压套和小阀针沿阀针组件的轴向压紧第一密封件,第一密封件位于第一槽,沿阀芯组件的轴向,第二部分与第一部分的第一台阶部抵接,第二部分与第一密封件接触或间隙设置,有利于降低第一密封件脱落的风险,有利于提高密封效果。
Valve element assembly and valve device
一种阀芯组件及阀装置
2024-03-01
Patent
Electronic Resource
Chinese
IPC: | F16K VALVES , Ventile / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS |
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