Patent ID: 9436189
Filing Date: 2016-09-06
CPC Classification: F01P,G05D

Claim Text:
1. A thermoregulator, comprising: a shell having an inner cavity therein; a pushrod disposed in the shell; a heat-sensitive element disposed in the shell and adapted to move the pushrod according to temperature, inner and outer valve bodies disposed in the shell; a sealing member mounted on the outer valve body and having an inner ring surface and an outer ring surface, and an elastic member disposed between the shell and the inner valve body, wherein the sealing member and the outer valve body encircle the inner valve body, wherein the sealing member and the inner valve body divide the inner cavity of the shell into a first cavity and a second cavity, and the elastic member normally pushes the inner valve body in a first direction from the first cavity toward the second cavity, wherein the inner ring surface of the sealing member is adapted to contact with the inner valve body, and the outer ring surface of the sealing member is adapted to contact with the shell such that a liquid in the inner cavity is prevented from flowing between the first cavity and the second cavity, wherein when a temperature of the liquid in the second cavity is higher than a first predetermined temperature and is lower than a second predetermined temperature, the heat-sensitive element expands to push the pushrod and thus the inner valve body to move in a second direction opposed to the first direction such that the inner ring surface is separated from the inner valve body and the outer ring surface of the sealing member is in contact with the shell; and wherein when the temperature of the liquid in the second cavity is equal to or higher than the second predetermined temperature, the inner valve body is in contact with the outer valve body to move the outer valve body in the second direction such that the outer ring surface is separated from the shell.