US1823655A

US1823655A - Aeroplane

Info

Publication number: US1823655A
Application number: US246936A
Authority: US
Inventors: Edmund A Huseby
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-01-16
Filing date: 1928-01-16
Publication date: 1931-09-15
Anticipated expiration: 1948-09-15

Description

P 1931- E. A. HUSEBY 1,823,655

AEROPLANE Filed Jan. 16, 1928 2 Sheets-Sheet l Sept. 15, 1931. E. A. HUSEBY AEROPLANE Filed Jan. 16, 1928 2 Sheets-Sheet 2 Patented Sept. 15, 1931 PATENT OFFICE EDMUND A. HUSEBY, OF CHICAGO, ILLINOIS AEROPLANE Application filed January 16, 1928. Serial No. 246,936.

This invention relates to aeroplanes, and has reference more particularly to improved means for increasing the vacuum effect on the top side of the plane or planes of the machine, soas to give the latter greater buoyancy in the air. It is Well known that the upward and forward inclination of the plane relatively to the direction of travel creates a less than atmospheric pressure, or a slight suction lifting effect, on the upper surface of the plane; and the object of my present invention is to provide an improved means for increasing this suction lift on the plane, said means being preferably operated directly or indirectly by the aeroplane motor. To this end, my invention, in one practical embodiment thereof, takes the form of a tube on or embedded in the upper side of either the trailing or forward beam of the top plane of a biplane or the single plane of a monoplane, said tube being closed at its ends and formed with perforations in its upper side opening through the top surface of the plane, and a pipe connecting said tube 2 with the air intake of the aeroplane motor, whereby the air suction effect of the motor is distributed through said tube and its perforations to the body of air directly above the plane, thereby lowering the pressure of said air body, or, in other words, exerting an upward suction or lifting effect on the plane.

My invention, its operative principle, and its practical advantages, will be readily un derstood by persons skilled in the art of aeronautics from the following detailed description, taken in connection with the accompanying drawings showing a simple embodiment thereof, in which Fig. l is a top plan view of an aeroplane of the biplane type, equipped with the invention;

Fig. 2 is a side elevation thereof;

Fig. 3 is a fore and aft section through the plane, on an enlarged scale;

Fig. 4 is a sectional detail of a vent valve in the air suction pipe;

Referring to the drawings, 10 designates the body or fuselage of a biplane, 11 and 12 the upper and lower planes or wings conuected by the struts 13 and brace wires 14, 15

the propeller, 16 the rudder, and 17 the landing wheels, all as usual in biplanes of this type. In such machines the plane itself usually comprises a light wood skeleton frame comprising front and trailing longi- "1'.

tudinal I-beams 18 and 19 respectively, transverse connecting and spacing strips 20, and a thin shell forming the transversely convex upper surface 21 and the substantially flat or slightly concave under surface 22 of the plane.

In carrying out the invention, one of the beams 18 and 19 (preferably the trailing beam 19) is channeled in and lengthwise of its top surface to receive a tube 23. The ends of this tube are closed and the top portion thereof lies in and fits a slot 24 in the top wall 21 of the plane, and the exposed top portion of the tube is formed with a row of holes 25, which preferably are graduated as to size, being largest at the outer ends of the tube and decreasing in size toward the middle. The tube 23 is conveniently made in two sections, the inner ends of which are fitted into the head of a T-coupling 26, and the stem of said coupling is connected by a pipe 27 and branch pipes 28 with the air intake manifolds 29 of the aeroplane motor. Since in a multiple cylinder motor the inflow of air through the manifolds 29 is practically continuous, it follows that there is a practically continuous suction through the holes 25 of the tube 23 whereby the air above the plane, and par ticularly in the region above the tube 23, is rarefied, thus producing a suction lifting effect on the plane.

The arrangement shown and described im poses no additional load on the aeroplane motor. A plurality of such tubes might, of course, be employed; and; in lieu of a tube, a hollow member of a different form might be employed having holes open above the upper surface of the plane.

When descending for the purpose of landing or seeking a lower altitude, it is desirable to intermit the partial vacuum above the plane, and for this purpose the air suction pipe 27 may be equipped with a vent valve 30, such as is illustrated in Fig. 4, by a quarter turn of which the connection of pipe 27 to the tube 23 is'cut ofi' and said pipe is vented laterally to the atmosphere.

I claim 1. The combination with an aeroplane, of

- a hollow member mounted on a plane thereof formed with holes open above the top surface of the plane, and a pipe connecting said hollow member with the air intake manifold o the aeroplane motor. s

2. The combination with an aeroplane, of a tube mounted on a plane thereof, said tube being closed at its ends and formed in its upper side with holes open above the top surface of the plane, and a pipe connecting said tube with the air intake manifold of the aeroplane motor.

3. The combination with an aeroplane, of a tube mounted on and lengthwise of a plane thereof, said tube bein closed at its ends and having in its upper si e a row of holes open above the top surface of the plane and of increasing size from the center to the ends thereof, and a pipe connecting the central portion of said tube with the air intake manifold of the aeroplane motor.

4. The combination with an aeroplane having a frame formed with a longitudinal beam channeled in its upper side and a top wall formed with a slot registering with said channel, of a tube seated in said channel with its upper side filling said slot, the ends of said tube being closed and its upper side having a row of holes, and a pipe connectingsaid tube with the air intake manifold of the aeroplane motor.

5. The combination with an aeroplane, of a hollow member mounted on a plane thereof formed with holes open above the top surface of the plane, a pipe connecting said hollow member with the air intake manifold of the aeroplane motor, and a valve in said pipe whereby the communication of said hollow member with said pipe may be cut off and said pipe vented directly to the atmosphere.

EDMOND A. HUSEBY.