一种超低温电动针阀
By designing an ultra-low temperature electric needle valve, using a servo motor and gear assembly to drive the needle valve assembly, and combining PTFE material and rubber sealing rings, the problems of slow response and reduced sealing performance of mechanical valves and solenoid valves at low temperatures are solved, achieving high-precision and reliable hydraulic control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN YUNSHUO TECH CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing mechanical valves and solenoid valves suffer from slow response, poor control accuracy, reduced sealing performance, high energy consumption, and insufficient reliability in low-temperature environments, which affects the performance of automotive automatic transmissions and the driving experience.
The system employs an ultra-low temperature electric needle valve, which includes a valve body, a needle valve assembly, an electric actuator, and a gear assembly. A servo motor drives the gear assembly to operate the needle valve assembly. Combined with PTFE material and rubber sealing rings, it achieves multi-stage adjustment and high torque output, ensuring stable opening and closing at extremely low temperatures.
It significantly improves sealing performance and structural stability in environments up to -40℃, avoids jamming and leakage, ensures operational accuracy and reliability, and solves the problems of unstable control and slow response of traditional valves at low temperatures.
Smart Images
Figure CN224515977U_ABST
Abstract
Claims
1. A cryogenic electric needle valve, characterized in that: The valve body is provided with a communicating internal channel and an internal flow channel; A needle valve assembly, wherein the needle valve assembly is disposed in the internal channel; The needle valve assembly includes a needle rod and a sealing plug; An electric actuator is used to drive the sealing plug into the internal channel so that the needle bar blocks the internal flow channel; It also includes a gearbox housing; the gearbox housing is located between the valve body and the electric actuator; a gear assembly is provided inside the gearbox housing; the electric actuator drives the needle valve assembly to work through the gear assembly; The internal channel also includes a guide hole that penetrates the internal flow channel; the needle rod is disposed in the guide hole and blocks the internal flow channel.
2. The cryogenic electric needle valve according to claim 1, characterized in that: The electric actuator includes a motor and a first gear; the motor is located on the side of the gearbox housing opposite to the valve body; the first gear is located on the power end of the motor; the motor drives the gear assembly to work through the first gear, thereby driving the needle valve assembly to work.
3. An ultralow temperature electrically powered needle valve according to claim 2, wherein: The gear assembly is rotatably disposed within the gearbox housing; the gear assembly includes a first double-layer gear, a second double-layer gear, and a second gear; the second gear passes through the gearbox housing via a connector and is detachably connected to the sealing plug; wherein the first gear, the first double-layer gear, the second double-layer gear, and the second gear mesh sequentially.
4. An ultralow temperature electrically powered needle valve according to claim 3, wherein: The gearbox housing has a linkage hole coaxial with the internal channel; the connector includes a connecting block and a connecting groove; the connecting block is located at the bottom of the second gear; the connecting groove is located on the side of the sealing plug away from the needle rod.
5. An ultralow temperature electrically powered needle valve according to claim 1 wherein: The sealing plug has threaded surfaces on its periphery and the inner wall of the channel; the sealing plug is threadedly connected to the inner channel.
6. An ultralow temperature electrically powered needle valve according to claim 5, wherein: The sealing plug is provided with a rubber sealing ring on its threaded surface.