Double-valve gas injection valve

• Main Authors: WANG LIFENG, WANG XIUQIANG, YI JINSHUI, SU MINGTAO, WU LONGLONG, WU PENGCHAO, WANG MENGXIAO, CONG TIANZENG
• Format: Patent
• Language: Chinese; English
• Published: 12.06.2018
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The invention discloses a double-valve gas injection valve. The double-valve gas injection valve comprises a valve body which is provided with a gas inlet and a gas outlet; a rear gas feeding cavity of the valve body is internally provided a partition wall and is divided into a high pressure cavity communicating with the gas inlet and a low pressure cavity communicating with the gas outlet or theatmosphere by the partition wall; the partition wall is provided a through hole, and the joint between a moving armature and the tail of a valve core penetrates through the through hole in the axial direction; and a shaft seal device is arranged in the through hole. The double-valve gas injection valve has the advantages that the structure is compact, the rigidity is good, the manufacturing technology is simple, and the valve sealing performance can be easily ensured, in addition, under the condition that the outer diameters of two valve blocks are different, resultant force, applied to the valve core, of gas tends to