A valve core, control valve, thermal management system and vehicle
By designing the guide surface and throttling surface of the valve core to abut against the inner wall of the valve seat, the problem of valve core vibration in throttling valves is solved, achieving stable flow control and extending service life.
CN119860443BActive Publication Date: 2026-08-04BYD CO LTD
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Patent Information
- Application Number
- CN202411897804.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2044-12-19
AI Technical Summary
Technical Problem
The valve core of the existing throttle valve vibrates severely under throttling conditions, which affects the reliability of flow control and shortens its service life.
Method used
A valve core was designed, including a guide surface and a throttling surface. The guide surface abuts against the inner wall of the valve seat to provide support, and the throttling surface surrounds the inner wall of the valve seat to form a fluid channel, avoiding high-frequency vibration, and achieving a sealing effect through the limiting part.
Benefits of technology
It improves the stability and structural strength of the valve core under throttling conditions, extends its service life, and ensures the stability of flow regulation and sealing effect.
✦ Generated by Eureka AI based on patent content.
Abstract
This application provides a valve core, a control valve, a thermal management system, and a vehicle. The valve core includes a valve stem, which comprises a main body and an adjusting portion arranged axially. The adjusting portion extends at least partially into the valve port, allowing the control valve to have a closed state and a throttling state. The adjusting portion includes a guide surface and a throttling surface. In the throttling state, the guide surface abuts against the inner wall of the valve seat, and the throttling surface and the inner wall of the valve seat form a fluid channel for fluid passage. Because the guide surface abuts against the inner wall of the valve seat, the inner wall of the valve seat can provide support for the valve stem of the valve core, preventing the valve stem from high-frequency vibration caused by high-speed scouring from the fluid. This improves the overall stability of the valve core in the throttling state, ensures stable flow regulation function of the control valve, and extends the service life of the valve core and the control valve.
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