The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 08, 2020

Filed:

May. 16, 2018
Applicant:

Northeastern University, Shenyang, CN;

Inventors:

Xiating Feng, Shenyang, CN;

Gaoming Lu, Shenyang, CN;

Yuanhui Li, Shenyang, CN;

Xiwei Zhang, Shenyang, CN;

Jianhua Wen, Shenyang, CN;

Tianyang Tong, Shenyang, CN;

Yanhua Gong, Shenyang, CN;

Assignee:

NORTHEASTERN UNIVERSITY, Shenyang, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 36/04 (2006.01); E21B 43/26 (2006.01); E21B 43/285 (2006.01);
U.S. Cl.
CPC ...
E21B 36/04 (2013.01); E21B 43/26 (2013.01); E21B 43/285 (2013.01);
Abstract

A high-power microwave borehole fracturing device for an engineering rock mass includes a high-power microwave generator, a high-power microwave coaxial heater, a high-power low-loss microwave coaxial transmission line, and a microwave power adaptive regulation and control system. The high-power microwave generator includes a continuous wave magnetron, a permanent magnet, a waveguide excitation chamber, a coaxial circulator, a coaxial matching load, a coaxial coupling converter, a waveguide coaxial converter, and an output waveguide. The high-power microwave coaxial heater includes a microwave transmission inner conductor, a microwave transmission outer conductor, a microwave input connector, a microwave short circuit cap, and a conductor supporting cylinder. The high-power low-loss microwave coaxial transmission line includes an input end coaxial line, middle section coaxial lines, and an output end coaxial line. The microwave power adaptive regulation and control system includes an impedance matching regulator, a microwave power controller, and a temperature sensor.


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