Patents by Inventor Yan-Sin Liao
Yan-Sin Liao 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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Publication number: 20220161453Abstract: An ultrasonic cutter includes a tool holder and an ultrasonic oscillator. The tool holder has a lower circular air-out aisle defined by sleeving an inner ring and an outer ring. The inner ring has oppositely a first surface and a second surface, and the outer ring has oppositely a third surface and a fourth surface. A gap spacing the first surface from the third surface has an upper air inlet and a lower air outlet. The second surface has a lower inner inclined surface forming a first angle with the first surface. The fourth surface has an outer inclined surface forming a second angle with the third surface. The ultrasonic oscillator, disposed in a chamber of the tool holder spatially connected with the gap, is used for providing ultrasonic oscillation to a cutter. In addition, a cooling and chip diversion system for the ultrasonic cutter is also provided.Type: ApplicationFiled: March 16, 2021Publication date: May 26, 2022Inventors: YAN-SIN LIAO, YU-SHIANG HUANG, YUNG-CHAO CHAN, SHIH-CHIEH LO,, SZU-CHIA LIN, CHIU-HUNG LI
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Patent number: 11052504Abstract: A temperature regulation system and a temperature regulation method are applicable to a machine tool. The temperature regulation system includes a cooling fluid storage tank, a heating fluid storage tank, an internal circulation subsystem, an external circulation subsystem and a computing unit. The internal circulation subsystem includes a first valve. The external circulation subsystem includes a plurality of flow channels and a second valve and a third valve disposed on the plurality of the flow channels. The computing unit controls the first valve, the second valve and the third valve to switch flow directions of the plurality of the flow channels among the cooling fluid storage tank, the heating fluid storage tank and machine tool. Therefore, a thermal balance of the machine tool can be effectively maintained.Type: GrantFiled: February 10, 2020Date of Patent: July 6, 2021Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shi-Jie Luo, Hsi-Hung Hsiao, Kun-Ying Li, Shih-Jie Wei, Yan-Sin Liao, Szu-Chia Lin, Yu-Hsuan Wu
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Patent number: 10688615Abstract: This disclosure relates to a temperature control system that may be applied to a machine tool. The system includes a cooling circulation and a controller. The cooling circulation comprises a pump, a cooler and a solenoid valve. The pump may be driven by a variable frequency motor so as to flow through the spindle of the machine tool. The cooler is serially connected with the liquid pump, and may cool the liquid coolant. The solenoid valve connects to inlet and outlet of the cooler, and may prevent the liquid coolant flows through the spindle from flowing back to the cooler. The controller is electrically connected with the variable frequency motor, the cooler and the solenoid valve. Further, the controller is connected to the machine tool to detect several parameters, so as to control the variable frequency motor, the cooler and the solenoid valve.Type: GrantFiled: October 25, 2018Date of Patent: June 23, 2020Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shih-Jie Wei, Kun-Ying Li, Yan-sin Liao, Shi-Jie Luo, Hsi-Hung Hsiao, Szu-Chia Lin
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Patent number: 10596670Abstract: The disclosure is a thermal stability control system and a control method thereof for a machine tool. The control system mainly consists of a machine cooling sub-system composed of a pump, at least a cooling loop and a tank for storing cooling fluid, a cooling fluid cooling and heating sub-system, a heater and a micro controller. The cooling fluid cooling and heating sub-system further consists of a condenser, an evaporator, a directional valve, an expansion valve and a compressor. The micro controller dominates corresponding operation combinations of turning on/off the heater, enabling/disenabling the cooling fluid cooling and heating sub-system as a heat pump or a cooler by activating/releasing the directional vale, and adjusting upward/downward the driving frequency of an inverter duty motor to drive the pump to change the flow rate of cooling fluid through the cooling loop according the real time load of the machine tool.Type: GrantFiled: September 12, 2017Date of Patent: March 24, 2020Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yan-Sin Liao, Shih-Jie Wei, Kun-Ying Li, Shi-Jie Luo, Hsi-Hung Hsiao
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Publication number: 20200055158Abstract: This disclosure relates to a temperature control system that may be applied to a machine tool. The system includes a cooling circulation and a controller. The cooling circulation comprises a pump, a cooler and a solenoid valve. The pump may be driven by a variable frequency motor so as to flow through the spindle of the machine tool. The cooler is serially connected with the liquid pump, and may cool the liquid coolant. The solenoid valve connects to inlet and outlet of the cooler, and may prevent the liquid coolant flows through the spindle from flowing back to the cooler. The controller is electrically connected with the variable frequency motor, the cooler and the solenoid valve. Further, the controller is connected to the machine tool to detect several parameters, so as to control the variable frequency motor, the cooler and the solenoid valve.Type: ApplicationFiled: October 25, 2018Publication date: February 20, 2020Inventors: Shih-Jie WEI, Kun-Ying Li, Yan-sin Liao, Shi-Jie Luo, Hsi-Hung Hsiao, Szu-Chia Lin
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Publication number: 20190047104Abstract: The disclosure is a thermal stability control system and a control method thereof for a machine tool. The control system mainly consists of a machine cooling sub-system composed of a pump, at least a cooling loop and a tank for storing cooling fluid, a cooling fluid cooling and heating sub-system, a heater and a micro controller. The cooling fluid cooling and heating sub-system further consists of a condenser, an evaporator, a directional valve, an expansion valve and a compressor. The micro controller dominates corresponding operation combinations of turning on/off the heater, enabling/disenabling the cooling fluid cooling and heating sub-system as a heat pump or a cooler by activating/releasing the directional vale, and adjusting upward/downward the driving frequency of an inverter duty motor to drive the pump to change the flow rate of cooling fluid through the cooling loop according the real time load of the machine tool.Type: ApplicationFiled: September 12, 2017Publication date: February 14, 2019Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yan-Sin LIAO, Shih-Jie WEI, Kun-Ying LI, Shi-Jie LUO, Hsi-Hung HSIAO
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Patent number: 9194425Abstract: A device of the axial-directional oil chamber of hydrostatic spindle comprises integrated oil seal structures at both the axial direction and the radial direction. The oil seal structures increase the work area of the oil chamber by extending and thus connecting an axial-directional oil seal edge to a radial-directional oil seal edge. Then, the rigidity of the axial hydrostatic bearing can be increased, and thus the application capability of the hydrostatic spindle can be upgraded to perform the multi-task machining from the mono-task machining.Type: GrantFiled: January 21, 2014Date of Patent: November 24, 2015Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shang-Te Chen, Hsin-Chuan Su, Yan-Sin Liao, Hsi-Hung Hsiao
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Publication number: 20150117802Abstract: A device of the axial-directional oil chamber of hydrostatic spindle comprises integrated oil seal structures at both the axial direction and the radial direction. The oil seal structures increase the work area of the oil chamber by extending and thus connecting an axial-directional oil seal edge to a radial-directional oil seal edge. Then, the rigidity of the axial hydrostatic bearing can be increased, and thus the application capability of the hydrostatic spindle can be upgraded to perform the multi-task machining from the mono-task machining.Type: ApplicationFiled: January 21, 2014Publication date: April 30, 2015Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: SHANG-TE CHEN, HSIN-CHUAN SU, YAN-SIN LIAO, HSI-HUNG HSIAO
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Patent number: 8839935Abstract: A transmission device includes a mounting frame having an abutting member, a driving sleeve sleeved fixedly on a drive shaft extending through the base plate, a transmission wheel sleeved rotatably on the driving sleeve, and a connecting post extending through a radially extending through hole in the transmission wheel and into a spiral first guiding groove in the driving sleeve having opposite first and second ends. A position-limiting member is disposed rotatably on a side surface of the transmission wheel. A ball is disposed in a ball-receiving hole in the position-limiting member and is movable in a curved second guiding groove in the side surface of the transmission wheel having a shallower first end and a deeper second end. When the drive shaft rotates regularly and reversely, the ball is spaced apart from the abutting member.Type: GrantFiled: December 24, 2009Date of Patent: September 23, 2014Assignee: Automotive Research & Testing CenterInventors: Yan-Sin Liao, Chien-Tzu Chen, Chien-Tai Huang, Bo-Ruei Chen, Fu-Yen Huang, Shou-Ti Cheng
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Patent number: 8672085Abstract: A variable ratio transmission mechanism is used in an automobile. The automobile includes first and second steering shafts extending along a first direction. The variable ratio transmission mechanism includes a securing unit connected to the first steering shaft, a connecting unit connected to the second steering shaft, a motor connected to the securing unit and including a revolving shaft that extends rotatably along a second direction different from the first direction, and a transmitting unit including a worm gear that is provided on the connecting unit and a worm that is provided on the revolving shaft and that engages and is angularly-slidable relative to the worm gear.Type: GrantFiled: December 23, 2011Date of Patent: March 18, 2014Assignee: Automotive Research & Testing CenterInventors: Chien-Tai Huang, Yan-Sin Liao, Tsung-Hsien Hu
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Patent number: 8672420Abstract: A system for evacuating gas from a brake booster of a motor vehicle includes: a first conduit adapted to be connected fluidly to the brake booster; an electric pump connected fluidly to the first conduit, and controllable to evacuate gas from the brake booster via the first conduit; a second conduit; an electric valve fluidly connecting the first and second conduits to each other; a mechanical pump connected fluidly to the second conduit, and adapted to be driven by a vehicle drive unit of the motor vehicle to evacuate gas from the brake booster via the first conduit, the electric valve, and the second conduit; and a control unit operatively associated with the electric pump and the electric valve, and configured to control operations of the electric pump and the electric valve according to a working state of the mechanical pump.Type: GrantFiled: November 9, 2011Date of Patent: March 18, 2014Assignee: Automotive Research & Testing CenterInventors: Jiun-Jie Chen, Shih-Chieh Huang, Chien-Tzu Chen, Yan-Sin Liao
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Publication number: 20130161115Abstract: A variable ratio transmission mechanism is used in an automobile. The automobile includes first and second steering shafts extending along a first direction. The variable ratio transmission mechanism includes a securing unit connected to the first steering shaft, a connecting unit connected to the second steering shaft, a motor connected to the securing unit and including a revolving shaft that extends rotatably along a second direction different from the first direction, and a transmitting unit including a worm gear that is provided on the connecting unit and a worm that is provided on the revolving shaft and that engages and is angularly-slidable relative to the worm gear.Type: ApplicationFiled: December 23, 2011Publication date: June 27, 2013Applicant: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Chien-Tai HUANG, Yan-Sin LIAO, Tsung-Hsien HU
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Publication number: 20130081705Abstract: A system for evacuating gas from a brake booster of a motor vehicle includes: a first conduit adapted to be connected fluidly to the brake booster; an electric pump connected fluidly to the first conduit, and controllable to evacuate gas from the brake booster via the first conduit; a second conduit; an electric valve fluidly connecting the first and second conduits to each other; a mechanical pump connected fluidly to the second conduit, and adapted to be driven by a vehicle drive unit of the motor vehicle to evacuate gas from the brake booster via the first conduit, the electric valve, and the second conduit; and a control unit operatively associated with the electric pump and the electric valve, and configured to control operations of the electric pump and the electric valve according to a working state of the mechanical pump.Type: ApplicationFiled: November 9, 2011Publication date: April 4, 2013Applicant: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Jiun- Jie CHEN, Shih-Chieh HUANG, Chien-Tzu CHEN, Yan-Sin LIAO
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Publication number: 20110094836Abstract: A transmission device includes a mounting frame having an abutting member, a driving sleeve sleeved fixedly on a drive shaft extending through the base plate, a transmission wheel sleeved rotatably on the driving sleeve, and a connecting post extending through a radially extending through hole in the transmission wheel and into a spiral first guiding groove in the driving sleeve having opposite first and second ends. A position-limiting member is disposed rotatably on a side surface of the transmission wheel. A ball is disposed in a ball-receiving hole in the position-limiting member and is movable in a curved second guiding groove in the side surface of the transmission wheel having a shallower first end and a deeper second end. When the drive shaft rotates regularly and reversely, the ball is spaced apart from the abutting member.Type: ApplicationFiled: December 24, 2009Publication date: April 28, 2011Applicant: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Yan-Sin Liao, Chien-Tzu Chen, Chien-Tai Huang, Bo-Ruei Chen, Fu-Yen Huang, Shou-Ti Cheng