Thrust producing apparatus

An apparatus for producing thrust, comprising in combination:

• a chamber;
• sound reflecting means in the chamber for reflecting sound waves;
• sound emitter means cooperating with the sound reflecting means for propagating a compression standing sound wave in the chamber having at least one low pressure node and at least one high pressure peak, the sound reflecting means and the sound emitter means producing in the chamber a higher pressure at the high pressure peak than at the low pressure node;
• intake means including at least one intake port extending into the chamber adjacent to the low pressure node for drawing air into the chamber;
• and
• discharge means including at least one discharge port extending into the chamber at a point for discharging air in a direction perpendicular to a line normal to the sound reflecting means, the discharge port being located adjacent the high pressure peak for creating thrust to move the chamber.

An apparatus for producing thrust, comprising in combination:

• a cylindrical chamber having a cylindrical sidewall and two ends mounted perpendicular to a longitudinal axis of the sidewall;
• sound emitter means located at one of the ends for emitting a sound wave in the chamber;
• sound reflecting means located at the other end of the chamber for reflecting the sound wave back to the sound emitter means so as to create a compression standing sound wave which propagates along the longitudinal axis of the chamber having at least one low pressure node and at least one high pressure peak, the sound emitter means and the sound reflecting means producing in the chamber a higher pressure at the high pressure peak than at the low pressure node;
• intake means including at least one intake port extending through the sidewall of the chamber and located at a point adjacent the low pressure node for drawing in a fluid;
• and
• discharge means including at least one discharge port extending through the chamber adjacent the high pressure peak for discharging air so as to create thrust.

An aircraft comprising in combination:

• a chamber having the configuration of a circular hollow disk with a central axis, a circumferential rim, an upper wall, and a lower wall spaced below the upper wall;
• a sound emitter positioned in the chamber on the central axis for emitting a sound wave in the chamber at a selected frequency;
• a reflecting wall located in the chamber at the rim for reflecting the sound wave back to the sound emitter so as to create in cooperation with the sound emitter a compression standing sound wave propagating in a 360 degree direction from the sound emitter, the compression standing sound wave having at least one low pressure node and at least two high pressure peaks, the sound emitter and reflecting wall producing in the chamber a higher pressure at the high pressure peaks than at the low pressure node;
• intake means including a plurality of intake ports positioned circumferentially around the central axis in the upper wall for drawing in air, the intake ports being located at the low pressure node;
• and
• discharge means including a plurality of discharge ports positioned circumferentially around the central axis through the lower wall of the chamber for discharging air, each of the discharge ports being located adjacent one of the high pressure peaks for discharging air so as to create an upward thrust to cause the aircraft to fly.

An aircraft, comprising in combination:

• a circular, hollow chamber having a central hole along a central axis, a circumferential rim, an upper wall, and a lower wall spaced below the upper wall;
• a jet engine mounted to the chamber at the upper wall, the jet engine being adapted to discharge an exhaust plume through the central hole of the chamber;
• modulating means for modulating the sound produced by the exhaust plume to create sound waves in the chamber having a selected frequency;
• a cylindrical sound reflecting means located at the rim of the chamber for reflecting back sound waves emanating from the exhaust plume to create areas of high and low pressure within the chamber, the areas of high pressure being of a higher pressure than the areas of low pressure;
• intake means including a plurality of intake ports located in the upper wall of the chamber and positioned adjacent the areas of low pressure within the chamber for drawing in air;
• and
• discharge means including a plurality of discharge ports located in the lower wall of the chamber and positioned adjacent the areas of high pressure within the chamber for discharging air from the chamber, the discharge creating a thrust to assist in lifting the aircraft to cause the aircraft to fly.

A method for producing thrust, comprising:

• providing a chamber;
• propagating a compression standing sound wave in the chamber so as to create at least one low pressure node and at least one high pressure peak within the chamber, with the pressure in the chamber at the high pressure peak being greater than the pressure at the low pressure node;
• providing an intake port extending into the chamber at a point adjacent the low pressure node, and drawing fluid in through the intake port due to the low pressure node;
• and
• providing a discharge port extending into the chamber adjacent the high pressure peak, and discharging air from the chamber through the discharge port as a result of the high pressure peak so as to create thrust.