Recirculation valve in an aeronautical engine

摘要

The installation has a supply pipe for supplying oil to an auxiliary pump (8). The pump is mounted in parallel on a main supply pipe (6) and connected to an auxiliary supply pump (1A). The auxiliary supply pump supplies an oil flow into a secondary discharge pipe (8A) of the auxiliary pump. The secondary pipe is connected to a check valve (4A) and a recirculation valve (5) by a three-way circuit for deflecting the flow of the auxiliary supply pump directly towards an oil tank (3). The check valve is directed towards a main discharge pipe (7). An independent claim is also included for a method for lubricating and cooling an equipment of an aeronautical engine.