US 2024/0409129 A1Published application

Operation method and operation system for upper and lower double-duct jet-propelled pipeline ultra-high speed flying vehicle

AssigneeNorth University of China

InventorsTiehua MA, Kun ZHANG, Yaoyan WU, Changxin CHEN, Lei FENG

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Abstract

A head propeller of the flying vehicle compresses incoming flow at a vehicle head inside an upper duct to a lower duct through an air suction channel. A portion of airflow is compressed to the lower duct through the air suction channel under an action of a guide plate and a vehicle body propeller. A bottom propeller of the flying vehicle compresses an airflow into pressure bins of the lower duct at a lower portion through the air suction channel. A sealing state of the pressure bins of the lower duct is destroyed. High-pressure airflow inside the lower duct is jetted out from an air outlet channel to the upper duct. A tail propeller guides the airflow to the tail portion of the vehicle body. The upper duct and the lower duct are constructed inside the pipeline, so a running resistance of the flying vehicle is reduced.

Claims10

Dependent claims

An operation method for an upper and lower double-duct jet-propelled pipeline ultra-high speed flying vehicle, characterized in that,

S1:
a space inside a pipeline (1) is divided into an upper duct and a lower duct by a bottom plate (101) in the pipeline (1), and the lower duct below the bottom plate (101) is divided into a plurality of pressure bins by a partition plate (102);
a flying vehicle (2) runs in the upper duct, and an air suction channel and an air outlet channel which communicate the pressure bins with the upper duct are disposed in the bottom plate (101) along a running direction;
S2:
the operation method comprises air sucking, compressing, and air jetting;
during the air sucking, a head propeller (202) of the flying vehicle (2) compresses most of incoming flow at a vehicle head inside the upper duct to the lower duct through the air suction channel;
a small portion of airflow at the vehicle head is compressed to the lower duct through the air suction channel under an action of a guide plate (203) and a vehicle body propeller (204) at a vehicle body of the flying vehicle (2);
and an airflow in a gap between a top of the flying vehicle (2) and the pipeline (1) is restrained by the gap and is always in a laminar flow state;
during the compressing, a bottom propeller (205) of the flying vehicle (2) compresses an airflow into the pressure bins of the lower duct at a lower portion of the flying vehicle (2) through the air suction channel, and a power provided by the bottom propeller (205) supplements energy loss in a flowing of the airflow and enables the pressure bins of the lower duct to be in a dynamic sealing state;
during the air jetting, the dynamic sealing state of the pressure bins of the lower duct located at a tail portion of the flying vehicle (2) is destroyed, high-pressure airflow inside the lower duct is jetted out from the air outlet channel to the upper duct along the tail portion of the flying vehicle (2), and a tail propeller (206) of the flying vehicle (2) guides the airflow to the tail portion of the vehicle body, achieving a running of the flying vehicle (2) at an ultra-high speed in the pipeline (1).

7 more elements

An operation system for an upper and lower double-duct jet-propelled pipeline ultra-high speed flying vehicle, characterized in that the operation system comprises a pipeline (1) and a flying vehicle (2);

the pipeline (1) comprises a bottom plate (101) which is disposed inside a pipeline body and divides a space inside the pipeline (1) into an upper duct and a lower duct, the lower duct below the bottom plate (101) is divided into a plurality of pressure bins by a partition plate (102), an edge of the bottom plate (101) is in sealing connection with the pipeline body of the pipeline (1), and a first opening (103) allowing airflow to come in and go out is disposed in a middle of the bottom plate (101) along a running direction, the first opening (103) being used as both an air suction channel and an air outlet channel which communicate the pressure bins with the upper duct;
the flying vehicle (2) comprises a vehicle body (201) with a side view projection being similar to a parallelogram and a front view projection being semicircular, a head tip of the vehicle body (201) gradually increases in width and transits to the vehicle body when seen from a top view direction, a tail of the vehicle body (201) gradually reduces in width from the vehicle body, the head tip of the vehicle body (201) is located at a lower portion of the vehicle body (201), two head propellers (202) are symmetrically disposed side by side in the middle of a head of the vehicle body (201), two tail propellers (206) are symmetrically disposed side by side in the middle of a tail of the vehicle body (201), a plurality of guide plates (203) are disposed side by side at a side edge of the vehicle body (201) along front-rear direction, a guide gap is formed between a plate body of the guide plates (203) and a vehicle body surface of the vehicle body (201), a joint between the plate body of the guide plates (203) and the vehicle body surface of the vehicle body (201) is gradually inclined towards the tail from up to down, the plate body of the guide plates (203) gradually increases in width from up to down, an airflow inlet of the guide gap faces a head of the vehicle body (201), the guide gap gradually increases in width from up to down;
at least two vehicle body propellers (204) are disposed inside the guide gap, two rows of bottom propellers (205) are disposed side by side at a bottom of the vehicle body (201) along the front-rear direction, and a width of the vehicle body (201) occupied by the two rows of bottom propellers (205) together is matched with the first opening (103).

the pipeline (1) comprises a bottom plate (101) which is disposed inside a pipeline body and divides a space inside the pipeline (1) into an upper duct and a lower duct, the lower duct below the bottom plate (101) is divided into a plurality of pressure bins by a partition plate (102), a spacing between an edge of the bottom plate (101) and the pipeline body of the pipeline (1) forms an air suction channel which communicates the pressure bins with the upper duct, and a second opening (104) allowing airflow to flow out from the pressure bins to the upper duct is disposed in a middle of the bottom plate (101) along a running direction, the second opening (104) being used as an air outlet channel which communicates the pressure bins with the upper duct;
the flying vehicle (2) comprises a vehicle body (201) with a side view projection being similar to a parallelogram and a front view projection being semicircular, a head tip of the vehicle body (201) gradually increases in width and transits to the vehicle body when seen from a top view direction, a tail of the vehicle body (201) gradually reduces in width from the vehicle body, the head tip of the vehicle body (201) is located at a lower portion of the vehicle body (201), two head propellers (202) are symmetrically disposed side by side in the middle of a head of the vehicle body (201), two tail propellers (206) are symmetrically disposed side by side in the middle of a tail of the vehicle body (201), a plurality of guide plates (203) are disposed side by side at a side edge of the vehicle body (201) along front-rear direction, a joint between a plate body of the guide plates (203) and a vehicle body surface of the vehicle body (201) is gradually inclined towards the tail from up to down, the joint between the plate body of the guide plates (203) and the vehicle body surface of the vehicle body (201) gradually reduces in width from up to down, a guide plane that the plate body of the guide plates (203) forms gradually increases from up to down, at least one vehicle body propeller (204) is disposed in front of the vehicle body (201) corresponding to the guide plates (203), a row of bottom propellers (205) is separately disposed at a bottom of the vehicle body (201) outside both sides of the vehicle body (201) along the front-rear direction, and the two rows of bottom propellers (205) are respectively located corresponding to the air suction channel.

Dependencies are inferred from the claim text.