Patents by Inventor Leping Zhang
Leping Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11204359Abstract: A sample rack moving mechanism is provided for removing a sample rack loaded with one or more sample containers from a temporary storing section, and returning the sample rack loaded with the sample containers holding the tested sample to the temporary storing section. The sample rack moving mechanism may include a drive element, a cam driven by the drive element to rotate and having a curve contour, a cam follower moving following the outer contour of the cam, a guide groove corresponding to the temporary storing section, having a bottom plane of the same height as a support plane of the temporary storing section for supporting the sample rack, and capable of moving the sample rack, and a support element driven by the cam follower to move upward and downward and driving the sample rack to horizontally move between the temporary storing section and the guide groove.Type: GrantFiled: April 1, 2019Date of Patent: December 21, 2021Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventors: Fating She, Leping Zhang
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Patent number: 10739327Abstract: Provided is a monitoring apparatus used to monitor lubricating oil inside a compressor. The monitoring apparatus comprises a first capacitance detector (100), a calculation unit, and a determining unit. The first capacitance detector (100) is disposed in a compressor (10) and is completely immersed in lubricating oil (20) inside the compressor (10), and is used to detect a first capacitance value (Cn). The calculation unit calculates a relative dielectric constant of the lubricating oil inside the compressor according to the first capacitance value (Cn) detected by the first capacitance detector (100). The determining unit monitors, according to the calculated relative dielectric constant, whether quality of the lubricating oil (20) inside the compressor (10) encounters an exception. Further provided are a method for monitoring quality of lubricating oil inside a compressor and an apparatus and a method for monitoring a fluid level of lubricating oil inside a compressor.Type: GrantFiled: May 5, 2016Date of Patent: August 11, 2020Assignee: DANFOSS (TIANJIN) LTD.Inventors: Yingke Sun, Dongdong Wang, Leping Zhang, Jingyuan Li, Pierre Ginies, Philippe Dewitte, Liang Fan
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Patent number: 10557651Abstract: An oil-gas balancing apparatus includes: a body, a gas balancing opening and at least one oil balancing hole. The body has a first end and a second end opposite to the first end, and the first end can be fixedly connected to a shell of a compressor and in communication with an oil sump of the compressor and a chamber of the oil sump. The gas balancing opening is disposed on a first portion of an end surface of the second end. The at least one oil balancing hole is disposed on a second portion of the end surface of the second end. The second portion and the first portion are oppositely disposed. A compressor system can include the oil-gas balancing apparatus.Type: GrantFiled: October 17, 2016Date of Patent: February 11, 2020Assignee: Danfoss (Tianjin) Ltd.Inventors: Liang Fan, Leping Zhang, Serdar Suindykov
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Publication number: 20190227089Abstract: A sample rack moving mechanism is provided for removing a sample rack loaded with one or more sample containers from a temporary storing section, and returning the sample rack loaded with the sample containers holding the tested sample to the temporary storing section. The sample rack moving mechanism may include a drive element, a cam driven by the drive element to rotate and having a curve contour, a cam follower moving following the outer contour of the cam, a guide groove corresponding to the temporary storing section, having a bottom plane of the same height as a support plane of the temporary storing section for supporting the sample rack, and capable of moving the sample rack, and a support element driven by the cam follower to move upward and downward and driving the sample rack to horizontally move between the temporary storing section and the guide groove.Type: ApplicationFiled: April 1, 2019Publication date: July 25, 2019Inventors: Fating SHE, Leping ZHANG
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Patent number: 10309978Abstract: A sample rack moving mechanism is provided for removing a sample rack loaded with one or more sample containers from a temporary storing section, and returning the sample rack loaded with the sample containers holding the tested sample to the temporary storing section. The sample rack moving mechanism may include a drive element, a cam driven by the drive element to rotate and having a curve contour, a cam follower moving following the outer contour of the cam, a guide groove corresponding to the temporary storing section, having a bottom plane of the same height as a support plane of the temporary storing section for supporting the sample rack, and capable of moving the sample rack, and a support element driven by the cam follower to move upward and downward and driving the sample rack to horizontally move between the temporary storing section and the guide groove.Type: GrantFiled: October 17, 2016Date of Patent: June 4, 2019Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventors: Fating She, Leping Zhang
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Patent number: 10030898Abstract: An oil balancing apparatus is for use with a first compressor and at least two second compressors. Suction pipes of the first compressor and the second compressors are connected in parallel to a suction main pipe and discharge pipes of the first compressor and the second compressors are connected in parallel to a discharge main pipe. The first compressor is in an operating state, and the second compressors are operated intermittently. The oil balancing apparatus includes a first oil balancing pipe connecting oil sumps of the second compressors in series, and a second oil balancing pipe connecting an oil sump of the first compressor to a bottom of the first oil balancing pipe. A refrigeration system is also disclosed.Type: GrantFiled: December 19, 2013Date of Patent: July 24, 2018Assignee: DANFOSS (TIANJIN) LTD.Inventors: Leping Zhang, Patrice Bonnefoi, Serdar Suindykov
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Publication number: 20180202989Abstract: Provided is a monitoring apparatus used to monitor lubricating oil inside a compressor. The monitoring apparatus comprises a first capacitance detector (100), a calculation unit, and a determining unit. The first capacitance detector (100) is disposed in a compressor (10) and is completely immersed in lubricating oil (20) inside the compressor (10), and is used to detect a first capacitance value (Cn). The calculation unit calculates a relative dielectric constant of the lubricating oil inside the compressor according to the first capacitance value (Cn) detected by the first capacitance detector (100). The determining unit monitors, according to the calculated relative dielectric constant, whether quality of the lubricating oil (20) inside the compressor (10) encounters an exception. Further provided are a method for monitoring quality of lubricating oil inside a compressor and an apparatus and a method for monitoring a fluid level of lubricating oil inside a compressor.Type: ApplicationFiled: May 5, 2016Publication date: July 19, 2018Inventors: Yingke Sun, Dongdong Wang, Leping Zhang, Jingyuan Li, Pierre Ginies, Philippe Dewitte, Liang Fan
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Patent number: 9657975Abstract: Embodiments of the present invention provides an oil balancing apparatus, applied to at least three compressors connected in parallel. The oil balancing apparatus includes a first oil balancing pipe and a second oil balancing pipe. The first oil balancing pipe connects oil sumps of all the compressors, and the second oil balancing pipe only connects oil sumps of oil-rich compressors but not an oil sump of an oil-starved compressor.Type: GrantFiled: November 22, 2013Date of Patent: May 23, 2017Assignee: Danfoss (Tianjin) Ltd.Inventors: Hongling Xu, Leping Zhang, Kongkham Lovan
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Publication number: 20170108255Abstract: An oil-gas balancing apparatus includes: a body, a gas balancing opening and at least one oil balancing hole. The body has a first end and a second end opposite to the first end, and the first end can be fixedly connected to a shell of a compressor and in communication with an oil sump of the compressor and a chamber of the oil sump. The gas balancing opening is disposed on a first portion of an end surface of the second end. The at least one oil balancing hole is disposed on a second portion of the end surface of the second end. The second portion and the first portion are oppositely disposed. A compressor system can include the oil-gas balancing apparatus.Type: ApplicationFiled: October 17, 2016Publication date: April 20, 2017Inventors: Liang Fan, Leping Zhang, Serdar Suindykov
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Publication number: 20170030938Abstract: A sample rack moving mechanism is provided for removing a sample rack loaded with one or more sample containers from a temporary storing section, and returning the sample rack loaded with the sample containers holding the tested sample to the temporary storing section. The sample rack moving mechanism may include a drive element, a cam driven by the drive element to rotate and having a curve contour, a cam follower moving following the outer contour of the cam, a guide groove corresponding to the temporary storing section, having a bottom plane of the same height as a support plane of the temporary storing section for supporting the sample rack, and capable of moving the sample rack, and a support element driven by the cam follower to move upward and downward and driving the sample rack to horizontally move between the temporary storing section and the guide groove.Type: ApplicationFiled: October 17, 2016Publication date: February 2, 2017Inventors: Fating SHE, Leping ZHANG
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Patent number: 9117389Abstract: The present invention discloses a spherical-screen device, a spherical-screen playing system and an image generating method for image rectification. The method includes the steps of: equally dividing an arc curve of a spherical screen, which corresponds to a radian of 90°, into a plurality of segments; equally dividing a straight line of a planar image corresponding to the arc curve into a plurality of segments, the number of the segments of the straight line being equal to the number of the segments of the arc curve; assigning an image parameter of a first point in the planar image to a third point in a planar image; and connecting a sphere center with a second point of a to-be-displayed image position on the arc curve that corresponds to the first point, a point falling in the planar image being the third point.Type: GrantFiled: October 17, 2012Date of Patent: August 25, 2015Inventors: Leping Zhang, Bing Yang, Yong Pan
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Patent number: 9018938Abstract: An integrated device suspended at a high voltage potential for the metering and protection of a distribution network comprises a measurement current transformer (CT), a protective CT and a voltage sensor. The voltage signal is output from the voltage sensor to an electric energy metering module and first and second electric signal acquiring modules. The current signal acquired by the measurement CT is output to the electric energy metering module. The current signal acquired by the protective CT is output to the first and second electric signal acquiring modules. The electric energy metering module processes the current and voltage signals and sends the processed data to a comprehensive control module. The first and second electric signal acquiring modules send the voltage and current data to the comprehensive control module. The comprehensive control module comprehensively calculates the received data and sends the result to a low voltage terminal.Type: GrantFiled: April 25, 2011Date of Patent: April 28, 2015Assignee: Wuhan Guoce Science & Technology Co., Ltd.Inventors: Tiexin Hou, Zhengliang Bu, Shun Hu, Zhigui Xu, Youyi Li, Zhengtao Zhao, Leping Zhang
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Publication number: 20150044070Abstract: An oil balancing apparatus is for use with a first compressor and at least two second compressors. Suction pipes of the first compressor and the second compressors are connected in parallel to a suction main pipe and discharge pipes of the first compressor and the second compressors are connected in parallel to a discharge main pipe. The first compressor is in an operating state, and the second compressors are operated intermittently. The oil balancing apparatus includes a first oil balancing pipe connecting oil sumps of the second compressors in series, and a second oil balancing pipe connecting an oil sump of the first compressor to a bottom of the first oil balancing pipe. A refrigeration system is also disclosed.Type: ApplicationFiled: December 19, 2013Publication date: February 12, 2015Applicant: Danfoss (Tianjin) Ltd.Inventors: Leping Zhang, Patrice Bonnefoi, Serdar Suindykov
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Publication number: 20140154105Abstract: Embodiments of the present invention provides an oil balancing apparatus, applied to at least three compressors connected in parallel. The oil balancing apparatus includes a first oil balancing pipe and a second oil balancing pipe. The first oil balancing pipe connects oil sumps of all the compressors, and the second oil balancing pipe only connects oil sumps of oil-rich compressors but not an oil sump of an oil-starved compressor.Type: ApplicationFiled: November 22, 2013Publication date: June 5, 2014Applicant: Danfoss (Tianjin) Ltd.Inventors: Hongling Xu, Leping Zhang, Kongkham Lovan
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Patent number: 8470243Abstract: A sample plate for a biochemical analyzer is provided, which includes a main shaft, an inner plate, an outer plate, a refrigeration bin, a tubing portion, a cooling fluid inlet and a cooling fluid outlet.Type: GrantFiled: March 18, 2011Date of Patent: June 25, 2013Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventors: Baozhen Nie, Zaixing Gao, Leping Zhang, Ping Tian
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Publication number: 20130057255Abstract: An integrated device suspended at a high voltage potential for the metering and protection of a distribution network comprises a measurement current transformer (CT), a protective CT and a voltage sensor. The voltage signal is output from the voltage sensor to an electric energy metering module and first and second electric signal acquiring modules. The current signal acquired by the measurement CT is output to the electric energy metering module. The current signal acquired by the protective CT is output to the first and second electric signal acquiring modules. The electric energy metering module processes the current and voltage signals and sends the processed data to a comprehensive control module. The first and second electric signal acquiring modules send the voltage and current data to the comprehensive control module. The comprehensive control module comprehensively calculates the received data and sends the result to a low voltage terminal.Type: ApplicationFiled: April 25, 2011Publication date: March 7, 2013Applicant: WUHAN GUOCE SCIENCE & TECHNOLOGY CO., LTD.Inventors: Tiexin Hou, Zhengliang Bu, Shun Hu, Zhigui Xu, Youyi Li, Zhengtao Zhao, Leping Zhang
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Publication number: 20110256023Abstract: A sample plate for a biochemical analyzer is provided, which includes a main shaft, an inner plate, an outer plate, a refrigeration bin, a tubing portion, a cooling fluid inlet and a cooling fluid outlet.Type: ApplicationFiled: March 18, 2011Publication date: October 20, 2011Applicant: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.Inventors: Baozhen Nie, Zaixing Gao, Leping Zhang, Ping Tian