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1.发明公开公开(公告)号：US20240361294A1
公开(公告)日：2024-10-31
申请号：US18571358
申请日：2023-01-09
发明人： Chenglin TIAN , Qianting HU , Haitao SUN , Xusheng ZHAO
CPC分类号： G01N33/222 , G01N3/00 , G01N2203/0032
摘要： A method of analyzing influencing factors of a contribution rate of elastic energy of a top plate during catastrophe of a coal body; the specific steps are: obtaining coal seam gas pressure; according to a drilling histogram, obtaining coal seam thickness and top plate thickness; taking a core on site and processing the core into a standard test piece; obtaining, by means of an indoor mechanical test, elastic moduli of the top plate and of gas-containing coal, respectively; substituting the obtained elastic moduli and thicknesses of the top plate and of the gas-containing coal into a calculation formula so as to obtain the contribution rate of the elastic energy of the top plate; and analyzing the influence of the contribution rate of the elastic energy of the top plate in the two situations of configuring the same thickness ratio and a different elastic modulus ratio and the same elastic modulus ratio and a different thickness ratio. In the described method, the role of the elastic energy of the top plate in a coal-gas dynamic disaster is fully considered while the influencing factors of the contribution rate of the elastic energy are analyzed. The method has important theoretical significance and practical engineering value. Moreover, the method has positive significance for the prediction and prevention of mining-induced rock burst-coal and gas outburst and other complex dynamic mining disasters.
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公开(公告)号：US12091147B1
公开(公告)日：2024-09-17
申请号：US18739229
申请日：2024-06-10
发明人： Ziliang Zhao , Bin Guo , Yuhang Zhang , Zhangu Wang , Jitai Yu , Jun Zhao , Qinglin Zhu
IPC分类号： B63H21/20 , B63B17/00 , B63H21/14 , B63H21/17 , B63H21/21 , B63H23/30 , B63H23/34 , F01N3/02 , F02M31/20 , H01M8/04014 , H01M8/04082 , H01M8/04111 , H01M8/04119 , H01M8/0662 , H01M10/44 , H01M16/00 , H02K11/33
CPC分类号： B63H21/20 , B63B17/0027 , B63H21/14 , B63H21/17 , B63H21/21 , B63H23/30 , B63H23/34 , F01N3/0205 , F02M31/20 , H01M8/04014 , H01M8/04111 , H01M8/04126 , H01M8/04201 , H01M8/0662 , H01M10/44 , H01M16/006 , H02K11/33 , B63H2021/205 , H01M2220/20 , H01M2250/20
摘要： A ship hydrogen hybrid power propulsion system and a method thereof are provided. The ship hydrogen hybrid power propulsion system includes a motor, a propeller, a power battery, an external motor controller, an internal motor controller, a hydrogen fuel cell, a hydrogen internal combustion engine, and a hydrogen storage tank. It combine the hydrogen fuel cell with the hydrogen internal combustion engine, and the hydrogen fuel cell is combined with the power battery and dynamically coupled with the internal motor and the external motor. Only a single hydrogen energy is needed, which is conducive to the layout and integration of the power system and achieves zero carbon emissions. Compared to the current dual motor power system, it has high integration, simpler power coupling, and a wider range of power output, making it particularly suitable for the high load and high-power output requirements of heavy-duty ships.
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3.发明公开公开(公告)号：US20240280451A1
公开(公告)日：2024-08-22
申请号：US18409775
申请日：2024-01-10
申请人： FUJIAN UNIVERSITY OF TECHNOLOGY , SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY , FUZHOU UNIVERSITY
发明人： GANG WANG , PENGJU WANG , PENG HE , XUEZHEN WU , KERUI FAN , CHANGSHENG WANG , ZHIJIA YOU , NING YANG , MINGRUI CHEN , LIANG ZHANG , FAN LV
CPC分类号： G01N3/24 , G01N1/44 , G01N33/24 , G01N2203/0048
摘要： Disclosed are an underground engineering rock mass shear simulation test device, a test method and a test machine. The test method includes: setting different test conditions by a controller to perform cyclic shear test at high temperature, fracture shear seepage test, granite uniaxial compression test at high temperature and granite fracture shear test under constant normal stiffness boundary conditions at room temperature. The electric heating wire assembly, the fan assembly and the environmental box are combined to flexibly and uniformly heat the samples placed in the upper shear box and the lower shear box. In terms of shear-seepage test, this scheme proposes a second sample placing mechanism that realizes sealing through sealing capsule and sealing capsule pressing plate. It realizes stable sealing and facilitates monitoring and debugging of seepage parameters.
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4.发明公开公开(公告)号：US20240264059A1
公开(公告)日：2024-08-08
申请号：US18691990
申请日：2023-04-10
发明人： Weitao LIU , Haifeng WU , Xiangxi MENG , Jiyuan ZHAO , Yanhui DU , Lifu PANG , Mengke HAN , Yaohua LI , Weiguo SONG , Hao LI
IPC分类号： G01N3/56
CPC分类号： G01N3/565 , G01N2203/0226 , G01N2203/0242 , G01N2203/0284 , G01N2203/0676 , G01N2203/0694
摘要： The disclosure provides a rock stratum grouting water blocking test device and method under a mining coupling condition, and relates to the technical field of permeability testing. The device includes a solution box, a test box, a pressing plate replacement box, a grouting pump, a recovery pool and a water pump, the solution box is connected with the test box through a liquid injection pipe, the bottom of the test box is connected with the pressing plate replacement box, the pressing plate replacement box is connected with a bottom plate, and the bottom plate is connected with a control panel. The device can be used for testing the influence of the single-factor or multi-factor coupling action of temperature, water quality, water pressure, water flow and grouting pressure on the grouting effect.
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公开(公告)号：US20240263711A1
公开(公告)日：2024-08-08
申请号：US18566716
申请日：2021-12-28
发明人： Ziliang ZHAO , Zhenguo LU , Hongbin WANG , Qingliang ZENG , Changjiang LI , Long GAO , Hong SONG
CPC分类号： F16K11/22 , F16K31/041 , F16K31/535
摘要： A volume liquid fixed-ratio multi-batch mixing valve includes a valve body, including a first inlet liquid chamber, a second inlet liquid chamber and a mixing chamber; a first valve core, controlling liquid inflow into the first inlet liquid chamber; a second valve core, controlling liquid inflow into the second inlet liquid chamber; a liquid drainage valve core, controlling liquid drainage; a rotary shaft includes a first impeller and a second impeller. The first impeller and the second impeller alternately control flow to the first inlet liquid chamber and the second inlet liquid chamber and to the second inlet liquid chamber and the mixing chamber. The first impeller and the second impeller are symmetrically about the rotary shaft; when the first inlet liquid chamber and the second inlet liquid chamber are communicated, the second valve core closes the second inlet liquid chamber and the mixing chamber.
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公开(公告)号：US12055022B2
公开(公告)日：2024-08-06
申请号：US17219132
申请日：2021-03-31
发明人： Jian Hou , Kang Zhou , Qingjun Du , Yongge Liu , Yueliang Liu , Bei Wei , Dong Zhao , Zhibin An , Dejun Wu
摘要： A method for realizing balanced displacement of crude oil by injection and production optimization coordinated chemical flooding which comprises the following steps: determining the median size and elastic modulus of viscoelastic particles according to the average permeability of the reservoir; optimizing the concentration ratio of the total concentration of the chemical agent; the physical parameters of each layer are counted, and the hierarchical system is combined according to the entropy weight algorithm and the cluster analysis method based on the gravity center method; the optimal section slug volume ratio of the single well injected with two slugs under the heterogeneity of the permeability of the strata is calculated; and the objective function is established by combining the coefficient of variation of remaining oil saturation, the effect of chemical flooding and the cost, and the numerical simulator is used to optimize the objective function.
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公开(公告)号：US20240240646A1
公开(公告)日：2024-07-18
申请号：US18410173
申请日：2024-01-11
发明人： Weiwei CUI , Fei YAO , Xiaonan WANG , Changlong RUAN , Haobo CAO , Laishun YANG , Guozhang CHANG , Cuiping WANG , Guangxi YUE
CPC分类号： F04D29/284 , F04D17/10
摘要： A subsonic compressor, a rotor blade and a method for flow stability enhancement are provided. The subsonic compressor includes a hub and a casing, a tip clearance is formed between a tip of the rotor blade and an inner wall of the casing. The tip clearance is formed as a circumferential diverging leakage passage expanding from a pressure surface side of the rotor blade of the subsonic compressor at the tip to a suction surface side of the rotor blade at the tip.
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公开(公告)号：US12019170B1
公开(公告)日：2024-06-25
申请号：US18496789
申请日：2023-10-27
发明人： Ying Xu , Kun Wang , Jinjie Sun , Yuqing Feng
CPC分类号： G01S19/393 , G01S19/40 , G01S19/49 , G01S19/52
摘要： The present disclosure relates to the field of GNSS and INS integrated navigation technology, and specifically discloses a GNSS and INS integrated navigation positioning method and a system thereof. To addresses the technical problem of positioning error divergence in integrated navigation systems caused by insufficient satellite visibility or strong multipath effects in GNSS denial environments, a method combining motion constraint algorithm and neural network algorithm is proposed for robustness by the present disclosure. The motion constraint algorithm is very stable, but it cannot self-adaptively adjust the constraint threshold based on the vehicle motion state. The neural network algorithm has strong flexibility, but the obtained predicted values inevitably have outliers. The present disclosure combines motion constraints with the neural network algorithms, enabling these two algorithms to complement advantages of each other, thereby effectively improving the positioning accuracy and reliability of the integrated navigation system after GNSS losing lock.
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公开(公告)号：US12018534B1
公开(公告)日：2024-06-25
申请号：US18403435
申请日：2024-01-03
发明人： Weiyao Guo , Yueying Zhang , Yongqiang Zhao , Wenjing Guo , Chengguo Zhang , Xiangyu Wang , Tongbin Zhao , Yunliang Tan
CPC分类号： E21B19/081 , E21B3/02 , E21B21/011 , E21C37/00 , E21C41/18
摘要： A drilling device for coal mining is provided, including a placement board. The placement board is fixedly connected to a first support pillar and a second support pillar, and the first support pillar and the second support pillar are together fixedly connected to a transmission rod; the transmission rod is connected to support rods symmetrically distributed in a limited sliding manner, and the support rods symmetrically distributed are connected to a connecting rod in a sliding manner; the connecting rod is provided with grooves evenly distributed in a circumferential direction, the grooves are fixedly connected to pneumatic telescopic blocks, and the telescopic end of each pneumatic telescopic block is fixedly connected to an arc-shaped plate. The arc-shaped plate is extended in a circumferential direction to support the drilled hole close to the drill bit, preventing the collapse of the drilling wall close to the drill bit.
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公开(公告)号：US12012966B2
公开(公告)日：2024-06-18
申请号：US18065359
申请日：2022-12-13
发明人： Weiwei Cui , Kai Zhang , Fei Yao , Xinglu Wang , Cuiping Wang , Laishun Yang
CPC分类号： F04D19/024 , F04D29/324
摘要： A vaneless contra-rotating compressor with multiple contra-rotating interfaces and application of the vaneless contra-rotating compressor is provided, which includes at least two vaneless contra-rotating interfaces. For each of the at least two contra-rotating interfaces, the contra-rotating interface corresponds to two of vaneless contra-rotating rotors. A rotating direction of an upstream rotor of the two vaneless contra-rotating rotors and a rotating direction of a downstream rotor of the two vaneless contra-rotating rotors are opposite. Rectifier stator vanes are not provided among all the rotors to supply sufficient inlet negative pre-swirl for the downstream rotors through the upstream rotors. Only the outlet guide vanes of the last stage, of the vaneless contra-rotating rotors are provided. The number of stages and the number of vaneless contra-rotating interfaces may be set flexibly according to the actual pressurization requirements.
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