Aircraft propulsion unit comprising at least one pressure relief device and aircraft having at least one such propulsion unit

An aircraft propulsion unit comprising:

• a motor,
• a fuel supplying system configured to supply fuel to the motor,
• a fairing that separates an inner zone and an outer zone, the motor and at least part of the fuel supplying system being positioned in the inner zone, and
• a pressure relief device configured to assume an inactivated state when the inner zone exhibits a pressure lower than a given threshold, in which the pressure relief device forms a leaktight barrier between the inner zone and the outer zone, and an activated state when the inner zone exhibits a pressure greater than or equal to the given threshold, in which the pressure relief device is configured to establish communication between the inner zone and the outer zone,
• wherein the pressure relief device comprises at least one opening passing through the fairing to establish communication between the inner zone and the outer zone and, for each of the at least one opening, at least one door configured to assume a closed position, corresponding to the inactivated state of the pressure relief device, in which the at least one door closes off the at least one opening, and an open position, corresponding to the activated state of the pressure relief device, in which the at least one door at least partially uncovers the at least one opening,
• wherein the fairing comprises a first lateral wall, a second lateral wall, and a trailing edge at which the first and second lateral walls meet,
• wherein the at least one opening of the pressure relief device is positioned in either the first lateral wall, the second lateral wall, or both, and wherein the at least one opening of the pressure relief device extends to the trailing edge, and
• wherein the first lateral wall and the second lateral wall form, in a transverse plane, an approximate V-shape, such that the trailing edge forms an end point of the approximate V-shape, and the trailing edge extends to a central part of the fairing.