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Recent Patents on Engineering

Author(s): Hongbo Liu*, Yunqi Zhao and Xiao Dong Yang

DOI: 10.2174/1872212117666230222114817

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Latest Patents on Buffers

Article ID: e220223213898 Pages: 15

  • * (Excluding Mailing and Handling)

Abstract

Background: When any equipment is running, the physical collision occurs in the machinery, which requires the hydraulic buffer devices to absorb and dissipate the impact energy in order to avoid the large vibration and even the damage to the structure caused by the impact load on the equipment. Therefore, the design of hydraulic buffers is very necessary.

Objective: Through the analysis of the research status of hydraulic buffers, some valuable conclusions are extracted from the representative and prospective results to predict the future research and development direction of hydraulic buffers.

Methods: The researches on hydraulic buffers are summarized and compared, and the characteristics of energy absorption and energy consumption of hydraulic buffers are expounded. Combined with the principle of hydraulic buffers, the related patents of hydraulic buffer are studied.

Results: By tracing the characteristics of different types of hydraulic buffers, the main problems existing in the development of hydraulic buffers are analyzed, such as short working life, low energy absorption efficiency, etc. Solving such problems as a prerequisite, the patents’ development of the structure and design method of hydraulic buffers is prospected.

Conclusion: The optimization and development of hydraulic buffers are conducive to improving the energy absorption efficiency and frequency of hydraulic buffers. This paper, thus, summarizes the advantages and disadvantages of different kinds of hydraulic buffers by tracing and summarizing the previous patents, learning that the most widely used buffer is the porous hydraulic buffer, but the cushioning performance of core rod buffer is more, which is the main development trend in the future.

Graphical Abstract

[1]
C.L. Wang, Y. Gao, and Q.L. Zeng, "Design and flow field analysis of a new type of axial hydraulic buffer", Pneumatics, vol. 45, no. 44, pp. 54-61, 2021.
[2]
Q.Q. Chen, X.M. You, and L. Meng, "Review on modeling and simulation of hydraulic buffer", Group Technol. Modernization Prod., vol. 38, no. 2, pp. 29-33, 2021.
[3]
Y.X. Liu, Design and simulation of a new spiral hydraulic buffer, M.S. thesis, Shandong University of Science and Technology, Shandong, China, 2020.
[4]
J.M. Lu, Study on buffer design and stability of small aircraft landing gear, M.S. thesis, Shanghai Institute of Technology, Shanghai, China, 2021.
[5]
F.H. Meng, Y.J. Xia, Y. Ma, and J.C. Wan, "Experimental analysis on energy absorption effect of energy absorption device for suspension span", J. Vibrat. Shock, vol. 41, no. 8, pp. 64-44, 2022.
[6]
C.L. Wang, Study on buffer mechanism of new hydraulic buffer, M.S. thesis, Wuhan, Wuhan University of Technology, Wuhan, China, 2014.
[7]
Y.S. Zhuo, Study on characteristics and detection method of hydraulic buffer, M.S. thesis, Zhejiang University, Zhejiang, China, 2006.
[8]
S. Sun, Simulation and optimization design of porous hydraulic buffer, M.S. thesis, Dalian University of Technology, Dalian, China, 2006.
[9]
W. Jia, Key structure design and experimental study of hydraulic buffer, M.S. thesis, Shenyang University of Technology, Shenyang, China, 2020.
[10]
Y.S. Fang, Q.J. Chen, Y.F. Zhang, and J.J. Dai, "Simulation analysis of damping and impact characteristics of hydraulic buffer", Kexue Jishu Yu Gongcheng, vol. 20, no. 19, pp. 7820-7825, 2020.
[11]
B.G. Hao, W.G. Sun, and X.B. Pan, "Study on buffer characteristics of hydraulic buffer for a gun", J. Weapon Equip. Eng., vol. 39, no. 9, pp. 54-58, 2018.
[12]
C.L. Wang, Y.X. Liu, G.Y. Miao, and Q.L. Zeng, "Design and simulation of a multi - head spiral hydraulic buffer", Pneumatics, no. 9, pp. 48-55, 2020.
[13]
Y.B. Yin, and H.L. Zhang, "Buffer principle and structure analysis of hydraulic buffer for elevator", Electromech. Eng. Technol., vol. 48, no. 10, pp. 112-115, 2019.
[14]
J. Lu, Study on structural design optimization and dynamic characteristics of gradient throttle hydraulic buffer, M.S. thesis, Shenyang Ligong University, Shen yang, Chain, 2016.
[15]
Z. Qi, G.J. Su, and B. Zhang, "Dynamic characteristic analysis and numerical simulation of hydraulic buffer", Electromech. Eng. Technol., vol. 46, no. 1, pp. 31-34, 2017.
[16]
P.C. Liu, C. Zhou, S.H. Fan, and J.Y. Liu, "Simulation analysis of buffer characteristics of hydraulic buffer", Mech. Eng., no. 3, pp. 91-93, 2018.
[17]
C. Zhou, S. Fu, and M. Xiang, "Study on buffer characteristics of elevator hydraulic buffer", Mach. Tool Hydraul., vol. 46, no. 13, pp. 148-151, 2018.
[18]
W.J. Jiang, Analysis of internal flow field in spring hydraulic buffer, M.S. thesis, North University of China, Shanxi, Chain, 2019.
[19]
J.S. Jiang, "Analysis and calculation of cylinder buffer mechanism", Building Machinery, vol. 8, no. 1, pp. 113-117, 2012.
[20]
T.J. Lei, New Manual of Hydraulic Design., Beijing Machinery Industry Publishing House: Beijing, 1990.
[21]
W.J. Tian, "Discussion on the design principle and method of porous gradient throttle hydraulic buffer", J. Gansu Univ. Technol., vol. 6, no. 2, pp. 74-84, 1980.
[22]
Z.H. Zhang, Study on seismic performance and test technology of an ultra - small oil - gas landing gear, M.S. thesis, Nanjing University of Aeronautics, Nanjing, Chain, 2019.
[23]
D. Ding, Study on nonlinear dynamic characteristics of core - rod hydraulic buffer, M.S. thesis, Hebei University of Science and Technology, Shijiazhuang, Chain, 2019.
[24]
M.Z. Li, Design and analysis of new type liquid gas buffer, M.S. thesis, Dalian Maritime University, Dalian, Chain, 2010.
[25]
W.C. Long, X.Q. Wei, X.T. Wang, and Q.L. Zeng, Design and optimization of a porous hydraulic buffer. Machine Tool Hydraulics, vol. 49. 2021, no. 16, pp. 82-86+97.
[26]
Y.X. Yuan, Simulation calculation and research on dynamic and static pressure curves of oil and gas buffer, M.S. thesis, Xi'an Technological University, Xi'an, Chain, 2015.
[27]
N. Zhang, Study on characteristics of throttle core shaft hydraulic gas buffer, M.S. thesis, Dalian University of Technology, Dalian, Chain, 2013.
[28]
F.J. Chang, "Introduction of adjustable hydraulic buffer", Hydraul. Pneumatic, no. 4, pp. 20-21, 1990.
[29]
H.H. Wang, "Floating buffer structure of hydraulic cylinder", Hydraul. Pneumatic, no. 2, pp. 24-25, 1995.
[30]
X. Meng, Research on the integration of digital design and manufacturing of buffer based on MBD, M.S. thesis, Nanjing University of Science & Technology, Nanjing, Chain, 2018.
[31]
S. Chen, "Buffer device of hydraulic cylinder", Constr. Mach, no. 10, pp. 4-5, 1996.
[32]
X.F. Wu, Analysis of compound buffer mechanism and buffer process of hydraulic cylinder, M.S. thesis, Taiyuan University of Technology, Taiyuan, Chain, 2013.
[33]
G.D. Wu, "Throttle buffer device of hydraulic cylinder", Constr. Mach. Maint, no. 3, pp. 74-75, 1999.
[34]
X. Meng, Z.G. Li, and C. Zhou, "Optimization design of throttle rod of hydraulic buffer", Mach. Tool Hydraul., vol. 46, no. 10, pp. 60-62, 2018.
[35]
Z. Ming, "A gas reset multi-stage hydraulic buffer with conical rod", C.N. Patent 207,379,856, 2018.
[36]
Z. Ming, and X. H. Ding, "Thin - wall hole multistage hydraulic buffer for gas reset", C.N. Patent 108,916,292A, 2018.
[37]
Y.J. Ye, H. Deng, T. F. Chen, and Z. Q. Xu, "A new type of elevator hydraulic buffer", C.N. Patent 109,319,626A, 2019.
[38]
H. Meng, H. L. Zou, and S. Liu, "A hydraulic buffer", C.N. Patent 108,006,141A, 2018.
[39]
F. Yang, "A hydraulic buffer", C.N. Patent 108,006,141B, 2020.
[40]
K. Zhao, G.J. Gang, and L.H. Tao, "Hydraulic buffer", C.N. Patent 106,763,438A, 2017.
[41]
Z. Yu, H.Y. Zhao, and W.H. Guo, "Hydraulic buffer with multistage damping throttle and hydraulic buffer method", C.N. Patent 105,673,761A, 2016.
[42]
X.Z. Zhao, K. Wang, and X. Xu, "Porous adjustable variable load hydraulic buffer", C.N. Patent 104,712,701B, 2017.
[43]
N.H. Lai, J.P. Xiao, and K.P. Wang, "A new type of micro hydraulic buffer", C.N. Patent 105,715,630B, 2018.
[44]
J.D. Yu, L. Liu, and F.S. Zhang, "A multi-stage pressure-limiting hydraulic buffer", C.N. Patent 104,455,172A, 2015.
[45]
A. Thomson, H. Hirata, and R. Kamakura, "Hydraulic buffer", C.N. Patent 105,593,564A, 2016.
[46]
X. L. Jing, and Y. Xu, "A hydraulic buffer with variable damping coefficient", C.N. Patent 104,695,791B, 2017.
[47]
K. Shibahara, "Hydraulic buffer", C.N. Patent 103,671,680A, 2014.
[48]
K. Shibahara, "Hydraulic buffer", C.N. Patent 101,718,323A, 2010.
[49]
H.Q. Shi, "Hydraulic buffer", C.N. Patent 102,635,661B, 2014.
[50]
T. Maeda, and R. Nakagawa, "Hydraulic buffer", C.N. Patent 101,240,830A, 2008.
[51]
X.B. Yan, H. He, and J. Yang, "Low speed bidirectional adjustable hydraulic buffer", C.N. Patent 101,737,376A, 2010.
[52]
H. Sugawara, "Hydraulic buffer", C.N. Patent 101,929,519B, 2018.
[53]
T. Tachibana, and S. Kogashi, "Multi-cylinder hydraulic buffer", C.N. Patent 102,388,233A, 2012.
[54]
R. Murakami, "Hydraulic buffer", C.N. Patent 102,483,120AC, 2011.
[55]
S.H. Zhi, S.H. Zhi, and S.D. Zhi, "A hydraulic buffer", C.N. Patent 101,968,093A, 2010.
[56]
S.H. Zhi, S.H. Zhi, and S.D. Zhi, "Bidirectional hydraulic buffer", C.N. Patent 102,562,908AIN, 2012.
[57]
J.C. Zou, and X.D.  , "Lang, Full-sealed hydraulic buffer", C.N. Patent 102,767,587A, 2012.
[58]
H. Q. Shi, "A top - pulling hydraulic buffer", C.N. Patent 102,635,662B, 2014.
[59]
H. B. Zhang, "Hydraulic buffer", C.N. Patent 113,309,925A, 2021.
[60]
C. Zhao, Y. L. Sun, and M. X. Lin, "Hydraulic buffer of coal gangue sorting device", C.N. Patent 113,090,699A, 2021.
[61]
Y.W. Wu, H. Cheng, and H.B. Bai, "Metal rubber hydraulic buffer", C.N. Patent 112,555,323A, 2021.
[62]
Z.L. Shao, X.P. Jin, and D.Y. Quan, "An intelligent hydraulic buffer and its buffering method", C.N. Patent 112,747,073A, 2021.
[63]
C.L. Wang, X.Q. Wei, and X.T. Wang, "A compound variable damping hydraulic buffer and its application", C.N. Patent 111,946,767A, 2020.
[64]
D.S. Xu, "A hydraulic buffer", C.N. Patent 111,594,565A, 2020.
[65]
G.Q. Chen, "An adaptive hydraulic buffer for shock absorber", C.N. Patent 111,457,048A, 2020.
[66]
L. Yu, "A point brake hydraulic buffer", C.N. Patent 110,921,458A, 2020.
[67]
D. Wang, and C.J. Yang, "A hydraulic buffer with elastic buffer component", C.N. Patent 113,896,073A, 2022.
[68]
T.J. Zhang, J.Y. Yang, and H.Z. Pan, "A single cylinder hydraulic buffer", C.N. Patent 109,538,681B, 2020.
[69]
Z.X. Tian, "A hydraulic buffer", C.N. Patent 108,488,296A, 2019.
[70]
X.F. Guang, "A new type of automatic hydraulic buffer", C.N. Patent 107,575,521A, 2018.
[71]
G.D. Cai, P.P. Zhang, and G.Q. He, "A hydraulic buffer", C.N. Patent 107,630,962A, 2018.
[72]
Y. Sun, "A single hole piston hydraulic buffer", C.N. Patent 107,461,443A, 2017.