Patents by Inventor Cheng-Chung Yen
Cheng-Chung Yen 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: 8734093Abstract: A mechanism modulates a fluid flow in a diffuser flow path of a compressor diffuser, including: a shroud disposed on the diffuser flow path and having a cam and a driving wheel fixed base; a diffuser vane having a diffuser guide vane disposed in the diffuser flow path and a diffuser vane shaft fixedly disposed on the diffuser vane that penetrates from the diffuser flow path through the shroud; a driving ring sleeved on the cam and having a moving bar; a sliding block having one end connected with one end the diffuser vane shaft that penetrates through the shroud, and the other end sleeved on a sliding groove formed on the moving bar; a driving wheel disposed in the driving wheel fixed base and having a driving shaft connected to an actuator outside of the compressor; and a driving cable connected to the driving wheel and the driving ring.Type: GrantFiled: December 27, 2010Date of Patent: May 27, 2014Assignee: Industrial Technology Research InstituteInventors: Cheng-Chung Yen, Chung-Ping Chiang, Ching-Fu Chen, Yung-Lo Chow
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Publication number: 20120134784Abstract: A mechanism modulates a fluid flow in a diffuser flow path of a compressor diffuser, including: a shroud disposed on the diffuser flow path and having a cam and a driving wheel fixed base; a diffuser vane having a diffuser guide vane disposed in the diffuser flow path and a diffuser vane shaft fixedly disposed on the diffuser vane that penetrates from the diffuser flow path through the shroud; a driving ring sleeved on the cam and having a moving bar; a sliding block having one end connected with one end the diffuser vane shaft that penetrates through the shroud, and the other end sleeved on a sliding groove formed on the moving bar; a driving wheel disposed in the driving wheel fixed base and having a driving shaft connected to an actuator outside of the compressor; and a driving cable connected to the driving wheel and the driving ring.Type: ApplicationFiled: December 27, 2010Publication date: May 31, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Cheng-Chung Yen, Chung-Ping Chiang, Ching-Fu Chen, Yung-Lo Chow
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Patent number: 8113799Abstract: A magnetic-gas bearing disposed in a compressor is provided. The magnetic-gas bearing includes an axis, multiple magnetic elements, multiple magnetic coils and a static pressure gas restrictor. The magnetic elements encircle the axis, and each magnetic element has two ends wound around by the magnetic coils respectively, such that the two ends of each magnetic element form a first magnetic pole and a second magnetic pole respectively. The static pressure gas restrictor encircles the axis and has a jet opening, such that the gas pass through the jet opening to form a gas-film between the static pressure gas restrictor and the axis. Besides, an oil-free centrifugal blade compressor including the magnetic-gas bearing mentioned above is also provided.Type: GrantFiled: April 17, 2009Date of Patent: February 14, 2012Assignee: Industrial Technology Research InstituteInventors: Teng-Yuan Wu, Cheng-Chung Yen, Chung-Ping Chiang, Jiing-Fu Chen
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Publication number: 20110194960Abstract: An oil-free lubrication centrifugal refrigerant compressor for compressing low-pressure refrigerant into high-pressure refrigerant, includes: a housing; a refrigerant pathway; a compression module; a radial bearing; a first conducting member, collecting troughs and a first exhaust member.Type: ApplicationFiled: August 19, 2010Publication date: August 11, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Teng-Yuan Wu, Cheng-Chung Yen, Ching-Fu Chen
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Patent number: 7789627Abstract: A centrifugal impeller employed in a centrifugal machine, includes a main body, the main body generally being conical and defining a shaft bore in a center portion thereof; and a plurality of blade groups evenly arranged surrounding the shaft bore in sequence, each of the blade groups having a plurality of blades wherein neighboring blades having an interval angle, and the number and corresponding interval angles of the blades of different blade groups are identical. The present impeller structure can be employed to distribute the concentrated energy of the discrete tones noise of the blades, which is generated by the high-speed rotation impeller, and further to reduce the operating tones noise.Type: GrantFiled: September 21, 2006Date of Patent: September 7, 2010Assignee: Industrial Technology Research InstituteInventors: Chung-Ping Chiang, Jiing Fu Chen, Yung-Lo Chow, Cheng-Chung Yen
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Patent number: 7789616Abstract: A rotor mechanism of a centrifugal compressor connectable to a power output device and configured to block leakage of lubricants and to recycle lubricants to an oil sump is provided, which includes a rotary shaft with a rolling bearing and a screw nut, a bearing housing for receiving the rolling bearing, and a bearing plate connected to the bearing housing. The screw nut has a surface provided with an oil throw seal, and the bearing housing. As the bearing plate is provided with an oil channel in contact with the oil-returning hole and either one of the bearing housing and the bearing plate is provided with a first labyrinth seal in contact with the screw nut, lubricants leaking out of the rolling bearing is allowed to go to the oil sump via the oil channel and oil-returning hole. The oil slinger thus blocks the lubricants from leaking out of the first labyrinth seal.Type: GrantFiled: July 30, 2007Date of Patent: September 7, 2010Assignee: Industrial Technology Research InstituteInventors: Cheng-Chung Yen, Chung-Ping Chiang, Jiing-Fu Chen, Yung-Lo Chow, Chun-Han Chen
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Publication number: 20100158718Abstract: A magnetic-gas bearing disposed in a compressor is provided. The magnetic-gas bearing includes an axis, multiple magnetic elements, multiple magnetic coils and a static pressure gas restrictor. The magnetic elements encircle the axis, and each magnetic element has two ends wound around by the magnetic coils respectively, such that the two ends of each magnetic element form a first magnetic pole and a second magnetic pole respectively. The static pressure gas restrictor encircles the axis and has a jet opening, such that the gas pass through the jet opening to form a gas-film between the static pressure gas restrictor and the axis. Besides, an oil-free centrifugal blade compressor including the magnetic-gas bearing mentioned above is also provided.Type: ApplicationFiled: April 17, 2009Publication date: June 24, 2010Applicant: Industrial Technology Research InstituteInventors: Teng-Yuan Wu, Cheng-Chung Yen, Chung-Ping Chiang, Jiing-Fu Chen
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Patent number: 7641439Abstract: A flow passage structure can be disposed in a multi-stage centrifugal refrigerant compressor having a deswirl vane and a return channel bend. The flow passage structure includes a two-way flow passage having a first outlet and a second outlet, for diverging externally injected refrigerant; a first side discharge flow passage connected to the first outlet of the two-way flow passage and having a first side outlet disposed below the deswirl vane, such that the diverged refrigerant can be discharged into the return channel bend and uniformly mixed with the refrigerant in the return channel bend; and a second side discharge flow passage connected to the second outlet of the two-way flow passage and having a second side outlet disposed below the deswirl, vane, such that the diverged refrigerant can be injected into the return channel bend and uniformly mixed with the refrigerant in the return channel bend.Type: GrantFiled: August 21, 2006Date of Patent: January 5, 2010Assignee: Industrial Technology Research InstituteInventors: Jiing Fu Chen, Chung-Ping Chiang, Yung-Lo Chow, Cheng-Chung Yen
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Publication number: 20080152478Abstract: A rotor mechanism of a centrifugal compressor connectable to a power output device and configured to block leakage of lubricants and to recycle lubricants to an oil sump is provided, which includes a rotary shaft with a rolling bearing and a screw nut, a bearing housing for receiving the rolling bearing, and a bearing plate connected to the bearing housing. The screw nut has a surface provided with an oil throw seal, and the bearing housing. As the bearing plate is provided with an oil channel in contact with the oil-returning hole and either one of the bearing housing and the bearing plate is provided with a first labyrinth seal in contact with the screw nut, lubricants leaking out of the rolling bearing is allowed to go to the oil sump via the oil channel and oil-returning hole. The oil slinger thus blocks the lubricants from leaking out of the first labyrinth seal.Type: ApplicationFiled: July 30, 2007Publication date: June 26, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Cheng-Chung Yen, Chung-Ping Chiang, Jiing-Fu Chen, Yung-Lo Chow, Chun-Han Chen
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Publication number: 20070140832Abstract: A centrifugal impeller employed in a centrifugal machine, includes a main body, the main body generally being conical and defining a shaft bore in a center portion thereof; and a plurality of blade groups evenly arranged surrounding the shaft bore in sequence, each of the blade groups having a plurality of blades wherein neighboring blades having an interval angle, and the number and corresponding interval angles of the blades of different blade groups are identical. The present impeller structure can be employed to distribute the concentrated energy of the discrete tones noise of the blades, which is generated by the high-speed rotation impeller, and further to reduce the operating tones noise.Type: ApplicationFiled: September 21, 2006Publication date: June 21, 2007Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chung-Ping Chiang, Jiing Fu Chen, Yung-Lo Chow, Cheng-Chung Yen
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Publication number: 20070140889Abstract: A flow passage structure can be disposed in a multi-stage centrifugal refrigerant compressor having a deswirl vane and a return channel bend. The flow passage structure includes a two-way flow passage having a first outlet and a second outlet, for diverging externally injected refrigerant; a first side discharge flow passage connected to the first outlet of the two-way flow passage and having a first side outlet disposed below the deswirl vane, such that the diverged refrigerant can be discharged into the return channel bend and uniformly mixed with the refrigerant in the return channel bend; and a second side discharge flow passage connected to the second outlet of the two-way flow passage and having a second side outlet disposed below the deswirl, vane, such that the diverged refrigerant tan be injected into the return channel bend and uniformly mixed with the refrigerant in the return channel bend.Type: ApplicationFiled: August 21, 2006Publication date: June 21, 2007Inventors: Jiing Fu Chen, Chung-Ping Chiang, Yung-Lo Chow, Cheng-Chung Yen
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Patent number: 6487936Abstract: An auxiliary-bicycle torsion sensing and large gear plate minimization apparatus, arranged in transmission apparatus of an auxiliary-bicycle, includes a sun gear, a unidirectional device, a planet gear set and a sensing device. The sun gear of planet gear set is connected to the crank axle of auxiliary-bicycle and driven directly with it. The stepping power of crank axle is output to the large gear plate of auxiliary-bicycle through the transmission of sun gear, planet gear and unidirectional device. Also, one side of swing arm, used for pivotally arranging sun gear and planet gear, is arranged with the sensing device. When crank axle is rotated by the stepping force of rider, the swing arm will generate a rotation torsion, and sensing device senses the torsion value to control the power output of driving motor.Type: GrantFiled: May 18, 2001Date of Patent: December 3, 2002Assignee: Industrial Technology Research InstituteInventors: Ching-Huei Wu, Ching-Wen Liu, Chung-Ping Chiang, Cheng-Chung Yen, Chih-Ming Liang
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Publication number: 20020173397Abstract: An auxiliary-bicycle torsion sensing and large gear plate minimization apparatus, arranged in transmission apparatus of an auxiliary-bicycle, includes a sun gear, a unidirectional device, a planet gear set and a sensing device. The sun gear of planet gear set is connected to the crank axle of auxiliary-bicycle and driven directly with it. The stepping power of crank axle is output to the large gear plate of auxiliary-bicycle through the transmission of sun gear, planet gear and unidirectional device. Also, one side of swing arm, used for pivotally arranging sun gear and planet gear, is arranged with the sensing device. When crank axle is rotated by the stepping force of rider, the swing arm will generate a rotation torsion, and sensing device senses the torsion value to control the power output of driving motor.Type: ApplicationFiled: May 18, 2001Publication date: November 21, 2002Applicant: Industrial Technology Research InstituteInventors: Ching-Huei Wu, Ching-Wen Liu, Chung-Ping Chiang, Cheng-Chung Yen, Chih-Ming Liang