Valve head assembly of aviation electromagnetic valve and aviation electromagnetic valve

• Main Authors: LI XIANGYANG, ZHANG QINGYANG, HE XUEGONG, TAO JIAXIN
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2022
• Subjects: ACTUATING-FLOATS; AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COCKS; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GAS-TURBINE PLANTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TAPS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VALVES; WEAPONS

The invention relates to the technical field of aviation power systems, and discloses a valve head assembly of an aviation electromagnetic valve and the aviation electromagnetic valve.The valve head assembly comprises a base, a valve body, a valve element, a sealing sleeve and a filter screen, the base is provided with a longitudinal first flow channel, the side wall of the first flow channel is provided with a first matching face, and the periphery of the base is sleeved with the valve body; the lower portion of the valve body is provided with a second flow channel aligned with the first flow channel, a control hole is formed in the first side face of the valve body, an oil return hole is formed in the second side face of the valve body, the control hole and the oil return hole both communicate with the second flow channel, the oil return hole is located above the control hole, and the side wall of the second flow channel is provided with a second matching face; the valve element is movably connected into th