Hydraulic supply system to aircraft hydraulic brake comprises single circuit connecting principal source to brake and includes emergency source formed by local pump and hydraulic tank

摘要

The supply system to an aircraft hydraulic brake (10) comprises a single hydraulic circuit connecting a principal source (12) to the brake. The circuit includes a local emergency source (14) formed by a local pump (18) and a local hydraulic tank (40). The pump is connected in parallel to a high pressure principal pipe (16) by means of a high pressure emergency pipe (22). A needle valve (32) normally lead the hydraulic fluid to the principal source. In emergency conditions the valve leads the fluid to the tank.