JPS61277826A - Suction-port protecting cover for aeroplane jet engine - Google Patents

Abstract

PURPOSE:To prevent the suction of foreign materials by installing a spindle- shaped protecting cover onto the outer periphery of the suction port of a jet engine. CONSTITUTION:A spindle-shaped protecting cover 3 is made from a net or net-shaped material. A protecting-cover installing ring 4 is installed onto the outer periphery of the suction port of a jet engine 1. The projecting cover 3 is installed onto the protecting-cover installing ring 4 by bolts 7. Therefore, the suction of foreign material into the jet engine is prevented.

Description

[Detailed Description of the Invention] The present invention attaches a net-like protective cover to the intake port of an aircraft jet engine to prevent birds and foreign objects from flying into the jet engine during takeoff and landing or low-altitude flight, thereby enabling safe flight. It is something.

To explain the structure of the present invention with reference to the drawings, FIG. 1 shows a spindle-shaped protective cover 3 made of a net or net-like material, and the protective cover 3 is detachably attached to the outer periphery of the intake port 2 of the jet engine 1. The protective cover 3 may be attached in one layer or in multiple layers.

In FIG. 2, an outer protective cover 6 is attached to the outer side of the inner protective cover 5 with a gap between them, and the gap is gradually widened toward the rear, and the mesh size of the inner protective cover 5 is larger than that of the outer protective cover 6. It is a smaller version.

FIG. 4 shows a case in which the front part of the protective cover attachment ring 4 is formed into a trumpet shape and a protective cover 3' is attached to it, and FIG. ' with a protective cover 3'' attached to it.

In the present invention, in order to make it easier to attach the protective cover, the outer periphery of the protective cover attachment ring 4 and the intake ports 2, 2' may be formed into a tapered shape.

In the present invention, the protective cover is formed into a spindle shape as described above, so even if a bird or foreign object tries to fly into the jet engine 1 and hits the protective cover during takeoff and landing or low-altitude flight of the aircraft, it is lightly parried backwards and the jet engine Prevent jumping.

In the case of Fig. 2, the inner protective cover 5 and the outer protective cover 6 are installed in two layers, so even if a small blade comes off when it hits the outer protective cover 6 or a small object gets inside, the inner protective cover The cover 5 receives the flow backward from the opening 8 and prevents it from jumping into the jet engine 1.

Although the amount of intake air in a jet engine is slightly reduced by attaching a protective cover, since the front part of the protective cover attachment ring 4 in Figure 4 and the intake port 2' of the jet engine in Figure 5 have been enlarged, The same amount of air can be taken in as before, and there is no problem in flight.

Also, if the protective cover is installed in a tapered manner, it can be installed stably without play. In addition, since the protective cover is detachably attached, it can be conveniently removed when servicing the jet engine or as needed.

Conventionally, when jet aircraft take off and land or fly at low altitudes, birds or other foreign objects may fly into the jet engine, threatening the safety of the flight, which is very dangerous. For this reason, various methods are used to drive away the birds, but there is always a danger that they will return if you are not careful.

It is also dangerous when foreign objects are blown up by the wind or an engine.

In the present invention, a protective cover is attached to the jet engine, so there is no possibility of birds or foreign objects flying in, and safe flight can be achieved. Further, the structure of the present invention is extremely simple and has various features such as being able to be installed not only in newly manufactured aircraft but also in existing aircraft.

[Brief explanation of drawings]

1 is a front view of the present invention, FIG. 2 is a front view showing the first embodiment, FIG. 3 is a right side view of FIG. 2, FIG. 4 is a front view showing the second embodiment, and FIG. The figure is a front view showing the third embodiment. 1---Jet engine, 2, 2'---Intake port, 3
, 3', 3''---Protective cover, 4---Protective cover mounting ring, 5---Inner protective cover, 6---Outer protective cover, 7---Mounting bolt, 8---Opening Department.

Claims (1)

[Claims] 1. A spindle-shaped protective cover 3 is formed of a net or net-like material, and the protective cover 3 is attached to the intake port 2 of the jet engine 1.
This air intake port protective cover for an aircraft jet engine is detachably attached to the outer periphery, and the protective cover 3 is attached in one layer or in multiple layers. 2. When installing two layers of protective covers, install the outer protective cover 6 on the outside of the inner protective cover 5 with a gap between them.
2. The air intake port protective cover for an aircraft jet engine according to claim 1, wherein the interval is gradually widened toward the rear, and the mesh size of the inner protective cover 5 is smaller than that of the outer protective cover 6. 3. The air intake port protective cover for an aircraft jet engine according to claims 1 and 2, wherein the front portion of the protective cover attachment ring 4 is formed into a trumpet shape and a protective cover 3' is attached thereto. 4. An air intake port protective cover for an aircraft jet engine according to claims 1 and 2, in which a protective cover 3'' is attached to an intake port 2' of the jet engine. 5. Protective cover attachment ring 4 and intake ports 2, 2. 'An air intake port protective cover for an aircraft jet engine according to any one of claims 1 to 4, wherein the outer periphery is formed into a tapered shape and attached.