公开(公告)号：US20240182137A1

公开(公告)日：2024-06-06

申请号：US18552022

申请日：2022-10-27

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Tiezhi SUN ,  Yao LI ,  Zhi ZONG ,  Bohan XIE

IPC: B63B1/38

CPC classification number: B63B1/38 ,  B63B2001/382

Abstract: A combined disc-type cavitation structure for underwater navigation of an underwater vehicle has an underwater vehicle and a fairing. A plurality of cavitators having sequentially increased outer diameters are sequentially arranged in the fairing. A cavitator receiving groove matched with the cavitator located on the front side is arranged in the center of the front surface of the cavitator located on the rear side in every two adjacent cavitators. The plurality of cavitators can be integrated into a whole by means of the cavitator receiving groove. The cavitator located at the front-most end is a first cavitator, and the remaining cavitators are second cavitators. The first cavitator is connected to the underwater vehicle by means of a buffer. Each second cavitator is respectively connected to the underwater vehicle by means of a driving device configured to axially move the corresponding second cavitator.

公开(公告)号：US20240149980A1

公开(公告)日：2024-05-09

申请号：US18550559

申请日：2022-10-27

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Tiezhi SUN ,  Yao LI ,  Zhi ZONG

IPC: B63B1/38

CPC classification number: B63B1/38 ,  B63B2001/382

Abstract: An adjustable cavitator structure has a cavitator disposed at a head end of the underwater vehicle. The cavitator has a cavitator body, a center of which is connected to the head center of the underwater vehicle through a damper. The front end of the cavitator body is detachably connected with a head fairing device. The cavitator body is of a double-layer structure including a first layer and a second layer. A plurality of cavitator disc face retractable sheets are installed on the first layer and the second layer and are evenly distributed around the axis of the cavitator body, and are slidably connected with the corresponding first layer or second layer. A buffer driving mechanism for driving the cavitator disc face retractable sheets to slide in a radial direction of the cavitator body is installed at the head end of the underwater vehicle.

公开(公告)号：US20240246637A1

公开(公告)日：2024-07-25

申请号：US18560453

申请日：2022-10-27

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yao LI ,  Tiezhi SUN ,  Zhi ZONG

IPC: B63B1/36

CPC classification number: B63B1/36

Abstract: A cavitation load-reduction device for an underwater vehicle has adjustable water-entry angles. It contains a cavitator disposed at a head end of an underwater vehicle, a front end of the cavitator being detachably connected to a head fairing device that is coaxially arranged with the cavitator. The head fairing device comprises a head fairing, a plurality of notches are arranged in a rear end of a side wall of the head fairing around an axis of the head fairing, fairing tiles hinged to the notches are arranged at the notches, and the fairing tiles are matched with the notches. Each fairing tile retractable arm is separately hinged to the fairing tile and the cavitator, and the fairing tile retractable arms are used to drive the fairing tiles to rotate around a hinge point of the fairing tiles and the head fairing.

公开(公告)号：US20240034437A1

公开(公告)日：2024-02-01

申请号：US18258370

申请日：2022-10-27

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Tiezhi SUN ,  Yao LI ,  Zhi ZONG ,  Di ZHANG ,  Shisheng WANG

IPC: B63B1/38 ,  B63G8/00

CPC classification number: B63B1/38 ,  B63G8/001 ,  B63B2001/382

Abstract: A jet-propelled water-entry composite buffer device for multi-channel gas recycling includes a head fairing, an underwater vehicle, a buffer, a cavitator and a side fairing. The side fairing is internally provided with a fairing body and a sealing choke plate, and a high-pressure gas cavity, a transition cavity and a sub-high-pressure gas cavity are formed by the fairing body and the sealing choke plate from front to back; a quota air pressure valve is disposed on the sealing choke plate; the fairing body is provided with pressure reducing holes; the high-pressure gas cavity, the transition cavity and the sub-high-pressure gas cavity form an gas cushion buffer. Gas acceleration holes communicated with the high-pressure gas cavity are further provided in the outer wall of the side fairing, so that a supercavity can be more favorably formed after the underwater vehicle enters water.