Bidirectional valve for lubricating oil system

• Main Authors: WANG DUANLIN, LI YUNLU, LI YUXUAN, YU HAO, JI JIAMING, LI WEN, ZHAO BO, LIU JUNTAO, DENG JIANGUO
• Format: Patent
• Language: Chinese; English
• Published: 02.05.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; LUBRICATING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model belongs to the technical field of aero-engine lubricating oil system design, and relates to a two-way valve for a lubricating oil system with a two-way conduction function. When the pressure is high and low, two one-way valves with opposite opening directions and two sets of connecting pipelines are needed, and the structure is relatively complex. The large valve seat is arranged in a shell in a sealing manner; an annular seat body with a valve seat through hole and a shaft hole is arranged in the large valve seat; the valve element is provided with a shaft rod part and a seat body part at the end, the seat body part is provided with a plurality of seat body through holes, and the shaft rod part penetrates through the small valve seat in the rear cavity and the shaft hole of the annular seat body and then is connected with the spring seat in the front cavity. A large spring is installed between the annular seat body and the spring seat in a pre-compression mode, and a small spring is install