Temperature regulating valve
AssigneeZhejiang Sanhua Automotive Components Co., Ltd.
InventorsHaoming Qiu, Xiaodan Lv, Tao Pan, Yongjin Luo
Life of this patent
Estimating the term…
Abstract
A thermostatic valve, including: a pressure relief ring capable of moving up and down and disposed in a valve body cavity. In normal conditions, the pressure relief ring is abutted against the outer edge of a first valve seat via a spring. An internal channel capable of being opened or closed via up and down movement of the pressure relief ring is further provided in the valve body cavity; when the pressure of a fluid in the thermostatic valve is excessive, the fluid can drive the pressure relief ring to compress the spring, such that the internal channel is in communication with a third interface to realize simultaneous communication with a first flow channel and a third flow channel.
Claims11
A thermostatic valve, comprising a valve body in which a chamber is provided, and a thermal actuator and a first spring mounted in the chamber, wherein
- one end of the chamber is open, one end of the thermal actuator abuts against the first spring, and the valve body is provided with at least three ports which comprise a first port, a second port and a third port, and wherein
- a valve seat assembly is further provided in the chamber, the valve seat assembly comprises a first valve seat, the first valve seat is provided with a first valve port extending through the first valve seat, and the thermostatic valve opens or closes the first valve port through cooperation between the thermal actuator and the first spring, an outer diameter of the first valve seat is less than an inner diameter of a portion of the chamber corresponding to the first valve seat, and an inner passage is formed between an outer wall of the first valve seat and an inner wall of the chamber;
- a pressure relief ring and a second spring are further provided in the chamber, one end of the second spring abuts against the pressure relief ring, the second spring is in a compressed state, the pressure relief ring is provided with a second valve port extending through the pressure relief ring, and an inner diameter of the second valve port is less than an outer diameter of the first valve seat and greater than an inner diameter of the first valve port;
- and
- the thermostatic valve opens and closes the inner passage with the pressure relief ring, and when the inner passage is unblocked, the first port is in communication with the third port through the inner passage and a first flow passage is formed in the thermostatic valve, wherein the first flow passage comprises the first port, the inner passage and the third port;
- and wherein
- the chamber comprises a first chamber, the first valve seat is located in the first chamber, and the inner passage is formed between the outer wall of the first valve seat and an inner wall of the first chamber;
- the valve seat assembly further comprises a connecting column, one end of the connecting column is connected to the first valve seat, the first valve seat is formed with an outer extension relative to the connecting column, and when the inner passage is blocked, the pressure relief ring abuts against the outer extension.
Dependencies are inferred from the claim text.