Patents by Inventor Kun-I Liang
Kun-I Liang 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: 7503755Abstract: A baffle plate assembly has a baffle plate comprising a back plate and a partition wall. The back plate has an inner space and is attached to the housing of the compressor. The partition wall is formed on the back plate to divide the inner space of the back plate into at least one upper guiding channel communicating with the compressing chamber in the compressor and at least one lower guiding channel communicating with the motor chamber of the compressor. Accordingly, the working fluid can be respectively led into the compressing chamber and the motor chamber of the compressor through the at least one upper guiding channel and the at least one lower guiding channel in a certain proportion. Consequently, the compressor will operate at an optimal condition.Type: GrantFiled: March 1, 2004Date of Patent: March 17, 2009Assignee: Industrial Technology Research InstituteInventors: Ching-Feng Lai, Yu-Choung Chang, Kun-I Liang, Ann Huang
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Patent number: 6913448Abstract: A load-regulating device for scroll type compressors comprising a compressor housing, a bracket body, a partition block, a gliding block, a pair of scrolls and a plurality of air chambers, wherein the gliding block being coupled with the pair of scrolls for defining a plurality of air chambers on the scrolls, the pressure variation in the air chambers is then utilized for causing the motion of the gliding block, enabling the compressor to cause the gliding block by means of the pressure variation to motion upwardly as the compressor is actuated, and preventing the fluid in the high-pressure chamber from leaking towards the low-pressure chamber, thus allowing the compressors to quickly build up the pressure; the gliding block is caused by the pressure variation to motion downwardly at times when the compression ratio is excessively high, so as to relieve part of the load, thus improving the performance and reliability of the compressors.Type: GrantFiled: December 30, 2002Date of Patent: July 5, 2005Assignee: Industrial Technology Research InstituteInventors: Kun-I Liang, Yu-Choung Chang, Ching-Feng Lai, Ann- Huang
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Publication number: 20040166008Abstract: A baffle plate assembly has a baffle plate comprising a back plate and a partition wall. The back plate has an inner space and is attached to the housing of the compressor. The partition wall is formed on the back plate to divide the inner space of the back plate into at least one upper guiding channel communicating with the compressing chamber in the compressor and at least one lower guiding channel communicating with the motor chamber of the compressor. Accordingly, the working fluid can be respectively led into the compressing chamber and the motor chamber of the compressor through the at least one upper guiding channel and the at least one lower guiding channel in a certain proportion. Consequently, the compressor will operate at an optimal condition.Type: ApplicationFiled: March 1, 2004Publication date: August 26, 2004Applicant: Industrial Technology Research InstituteInventors: Ching-Feng Lai, Yu-Choung Chang, Kun-I Liang, Ann Huang
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Publication number: 20040126246Abstract: A load-regulating device for scroll type compressors comprising a compressor housing, a bracket body, a partition block, a gliding block, a pair of scrolls and a plurality of air chambers, wherein the gliding block being coupled with the pair of scrolls for defining a plurality of air chambers on the scrolls, the pressure variation in the air chambers is then utilized for causing the motion of the gliding block, enabling the compressor to cause the gliding block by means of the pressure variation to motion upwardly as the compressor is actuated, and preventing the fluid in the high-pressure chamber from leaking towards the low-pressure chamber, thus allowing the compressors to quickly build up the pressure; the gliding block is caused by the pressure variation to motion downwardly at times when the compression ratio is excessively high, so as to relieve part of the load, thus improving the performance and reliability of the compressors.Type: ApplicationFiled: December 30, 2002Publication date: July 1, 2004Applicant: Industrial Technology Research InstituteInventors: Kun-I Liang, Yu-Choung Chang, Ching-Feng Lai, Ann-Huang
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Publication number: 20040126258Abstract: A baffle plate assembly has a baffle plate comprising a back plate and a partition wall. The back plate has an inner space and is attached to the housing of the compressor. The partition wall is formed on the back plate to divide the inner space of the back plate into at least one upper guiding channel communicating with the compressing chamber in the compressor and at least one lower guiding channel communicating with the motor chamber of the compressor. Accordingly, the working fluid can be respectively led into the compressing chamber and the motor chamber of the compressor through the at least one upper guiding channel and the at least one lower guiding channel in a certain proportion. Consequently, the compressor will operate at an optimal condition.Type: ApplicationFiled: December 30, 2002Publication date: July 1, 2004Applicant: Industrial Technology Research InstituteInventors: Ching-Feng Lai, Yu-Choung Chang, Kun-I Liang, Ann Huang
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Patent number: 6750580Abstract: The present invention relates to a permanent magnet rotor permanent magnet positioning and retaining device comprising a sleeve, a rotor iron core properly provided therein, a plurality of arc-shaped permanent magnets of alternation poles disposed between the sleeve and the rotor, a plurality of near triangle-shaped regions between two adjacent permanent magnets being formed by cutting off the outer perimeter corners of two adjacent permanent magnets, wherein said rotor iron core further comprises a plurality of circumferentially provided grooves for separating two arc-shaped permanent magnets of alternating poles and a plurality of dividers, each being provided between two arc-shaped permanent magnets of alternating poles; said divider, between the rotor iron core and the sleeve, further comprises a base being engaged with a groove so that the dividers are secured to the rotor iron core, a trunk capable of filling the gap between two adjacent permanent magnets to prevent said permanent magnets from moving inType: GrantFiled: December 26, 2000Date of Patent: June 15, 2004Assignee: Industrial Technology Research InstituteInventors: Ching-Feng Lai, Chun-Chung Yang, Tse-Liang Hsiao, Yu-Choung Chang, Kun-I Liang, Ann-Huang Dummy
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Patent number: 6512317Abstract: The present invention relates to a permanent magnet rotor comprising a rotary iron core formed by stacking a plurality of round steel plates, and a plurality of arc-shaped permanent magnets, wherein said individual arc-shaped permanent magnets of alternation poles are provided in the corresponding openings. In particular, the present invention discloses round-cornered permanent magnets by providing round instead of sharp comers at outer perimeter of two adjacent permanent magnets so as to form triangle-shaped regions. Moreover, to prevent said open areas from being filled up, portions of steel plates or holes through steel plates opposite said open areas are removed or created, respectively, so that magnetic flux leakage is minimized and motor performance is elevated.Type: GrantFiled: December 26, 2000Date of Patent: January 28, 2003Assignee: Industrial Technology Research InstituteInventors: Ching-Feng Lai, Yu-Choung Chang, Tse-Liang Hsiao, Chun-Chung Yang, Kun-I Liang, Ann Huang
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Publication number: 20020079770Abstract: The present invention relates to a permanent magnet rotor permanent magnet positioning and retaining device comprising a sleeve, a rotor iron core properly provided therein, a plurality of arc-shaped permanent magnets of alternation poles disposed between the sleeve and the rotor, a plurality of near triangle-shaped regions between two adjacent permanent magnets being formed by cutting off the outer perimeter corners of two adjacent permanent magnets, wherein said rotor iron core further comprises a plurality of circumferentially provided grooves for separating two arc-shaped permanent magnets of alternating poles and a plurality of dividers, each being provided between two arc-shaped permanent magnets of alternating poles; said divider, between the rotor iron core and the sleeve, further comprises a base being engaged with a groove so that the dividers are secured to the rotor iron core, a trunk capable of filling the gap between two adjacent permanent magnets to prevent said permanent magnets from moving inType: ApplicationFiled: December 26, 2000Publication date: June 27, 2002Applicant: Industrial Technology Research InstituteInventors: Ching-Feng Lai, Chun-Chung Yang, Tse-Liang Hsiao, Yu-Choung Chang, Kun-I Liang, Ann-Huang
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Publication number: 20020079768Abstract: The present invention relates to a permanent magnet rotor comprising a rotary iron core formed by stacking a plurality of round steel plates, and a plurality of arc-shaped permanent magnets, wherein said individual arc-shaped permanent magnets of alternation poles are provided in the corresponding openings. In particular, the present invention discloses round-cornered permanent magnets by providing round instead of sharp corners at outer perimeter of two adjacent permanent magnets so as to form triangle-shaped regions. Moreover, to prevent said open areas from being filled up, portions of steel plates or holes through steel plates opposite said open areas are removed or created, respectively, so that magnetic flux leakage is minimized and motor performance is elevated.Type: ApplicationFiled: December 26, 2000Publication date: June 27, 2002Applicant: Industrial Technology Research InstituteInventors: Ching-Feng Lai, Yu-Choung Chang, Tse-Liang Hsiao, Chun-Chung Yang, Kun-I Liang, Ann-Huang
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Patent number: 6368088Abstract: A back pressure regulation mechanism is incorporated in a scroll compressor. The compressor includes a fixed scroll and a spacing member fixed inside a casing to define a high pressure chamber behind the fixed scroll. The back pressure regulation mechanism includes a boss formed on the fixed scroll and extending through the spacing member into the high pressure chamber whereby a first force caused by pressure difference acts upon the boss and thus the fixed scroll, a plurality of bores defined in the spacing member, each bore being in communication with the high pressure chamber and the fixed scroll, and a back pressure regulation device accommodated in each bore and including a pin received in the bore and movable between upper and lower limit positions, a washer engaging the fixed scroll and a disk spring arranged between the pin and the washer. A second force caused by the pressure difference acts upon the pin and is transmitted to the fixed scroll via the disk spring and the washer.Type: GrantFiled: December 27, 2000Date of Patent: April 9, 2002Assignee: Industrial Technology Research InstituteInventors: Tse-Liang Hsiao, Ching-Feng Lai, Kun-I Liang, Yu-Choung Chang, Chun-Chung Yang
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Patent number: 6179588Abstract: A check valve device for a scroll machine is used to automatically maintain a unique flow direction of the working media. The check device is mounted on the neck of the non-orbiting scroll member of the scroll machine, in which the neck has an axle hole for defining a first passage for flowing the working media. The check valve includes a housing and a valve member. The housing has a through second passage, and couple with the neck in such a manner that a through passage is formed for connecting the first passage of the neck and the second passage of the housing. The valve member is located inside the second passage of the housing, and is formed as a plate with a pivot means to rotate along. While the scroll machine is in stop operation, the valve member is at a close position that the valve member can substantially block the flow of the working media inside the second passage.Type: GrantFiled: October 1, 1998Date of Patent: January 30, 2001Assignee: Industrial Technology Research InstituteInventors: Kun-I Liang, Ching-Feng Lai, Tse-Liang Hsiao, Ann Huang, Yu-Choung Chang, Chun-Chung Yang, Ching-Eeng Tsai
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Patent number: 6142754Abstract: A mounting mechanism for a scroll machine comprises a non-orbiting scroll member which further includes a top seal plate, a non-orbiting scroll wrap extruding downward from bottom surface of the top seal plate, and a first locating element located at rim of the top seal plate; an orbiting scroll member which further includes a bottom seal plate and an orbiting scroll wrap extruding upward from top surface of the bottom seal plate; a frame for bearing the orbiting scroll member to operate along a circular orbit with respect to the non-orbiting scroll member which further includes a second locating element. The present invention is characterized in that, while the scroll machine in assembling, precise mounting of the non-orbital scroll member upon the orbiting scroll member can be easily secured by aligning and engaging the second locating element with the first locating element.Type: GrantFiled: June 29, 1998Date of Patent: November 7, 2000Assignee: Industrial Technology Research InstituteInventors: Tse-Liang Hsiao, Yu-Choung Chang, Kun-I Liang, Chun-Chung Yang
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Patent number: 6048184Abstract: A back-pressure sealing system for a revolving compressor, comprising: a stator with an outlet on the upper side and a neck, surrounding the outlet; a separating part above the stator, separating a low-pressure zone around the stator from a high-pressure zone above the outlet and having a central opening around the neck; a connecting system between the upper and lower sides of the separating part; a first sealing device for sealing the neck of the stator against the central opening of the separating part; and a second sealing device for sealing the connecting system; wherein the back-pressure from the high-pressure zone is used to tighten the first and second sealing devices for a good sealing effect and thus good effectiveness of the compressor.Type: GrantFiled: November 26, 1997Date of Patent: April 11, 2000Assignee: Industrial Technology Research InstituteInventors: Yu-Choung Chang, Tse-Liang Hsiao, Su Tao, Kun-I Liang, Chun-Chung Yang, Ann Huang, Ching-Feng Lai
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Patent number: 5921762Abstract: An Oldham ring system for a rotary fluid compressor, comprising: a motor shaft; an eccentric shaft; a revolving part with two first gliding elements on its lower side; a stator; an Oldham ring, its upper side being provided with two second gliding elements fitting the two first gliding elements, and its lower side being provided with two third gliding elements for a perpendicular gliding movement; and a frame, on its perimeter being provided with two holders and with two fourth gliding elements in between that glide against said third gliding elements; wherein the characteristic is that the Oldham ring is, on the two opposite sides located next to the holders of the frame, provided with two straight shortcuts to reduce the width of the Oldham ring next to the holders; and wherein the first and second gliding elements as well as the third and fourth gliding elements each are provided with a groove in the gliding direction to provide for a flow path for lubricating oil.Type: GrantFiled: June 21, 1996Date of Patent: July 13, 1999Assignee: Industrial Technology Research InstituteInventors: Yu-Choung Chang, Chih-Cheng Yang, Tse-Liang Hsiao, Ching-Feng Lai, Kun-I Liang, Su Tao