Thermostatic expansion valve and cooling system with the same

• Main Authors: YIN BIN, ZHENG ZHENGSONG, WANG HUI
• Format: Patent
• Language: Chinese; English
• Published: 13.08.2014
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

The utility model discloses a thermostatic expansion valve which comprises a valve body, a pressure transmission rod and a ball body. The pressure transmission rod and the ball body are arranged in the valve body. The valve body comprises an inlet end opening, a valve chamber and an outlet end opening. High-pressure cooling agents are guided in through the inlet end opening. The valve chamber is communicated with the inlet end opening. The cooling agents are guided out through the outlet end opening. Connecting holes connected with the inlet end opening and the outlet end opening are formed in the valve chamber. The connecting holes comprise a cylinder hole close to the pressure transmission rod and a cone hole close to the ball body. A groove which protrudes outwards and extends vertically is formed in the side wall of the cylinder hole. The groove and the cone hole form a through channel which is communicated with the inlet end opening and the outlet end opening. According to the structure, when a valve ope