Propulsion assembly for an aircraft, comprising an intermediate cowl of the stationary, removable type, mounted on a hinge system

A propulsion unit for an aircraft, comprising:

• a turbojet engine comprising a fan and a fan casing surrounding the fan;
• and
• a nacelle surrounding the turbojet engine and comprising a fan compartment delimited internally by the fan casing;
• wherein the nacelle comprises, from upstream to downstream along an axis of the propulsion unit:
• a front cowling forming an air inlet;
• and
• an intermediate section having at least one intermediate cowling of fixed and removable type, externally delimiting the fan compartment, and attached to at least one other structure of the propulsion unit by removable through fasteners, said at least one other structure comprising at least one of the front cowling, a rear partition rigidly supported by the fan casing, and another cowling of the intermediate section;
• wherein said at least one intermediate cowling is connected to another element of the propulsion unit by means of a hinge system which, as a result of removing said removable through fasteners, is designed to allow the intermediate cowling to be moved between a closed position, in which the intermediate cowling extends continuously with the front cowling, and an open position, in which the intermediate cowling is shifted upstream or downstream relative to its location in the closed position so as to open the fan compartment;
• and
• wherein said at least one intermediate cowling comprises a lower cowling extending at least in a lower angular portion of the propulsion unit, for which said removable through fasteners comprise at least first removable through fasteners by which said lower cowling is attached to said other structure of the propulsion unit, for which said other element of the propulsion unit is the turbojet engine, and for which the open position is a position in which said lower cowling is transversely spread, by means of a circumferential bending deformation of said lower cowling, and axially offset, relative to its location in the closed position.