Industrial Technology Research Institute

Chun-Chung Yang

Yu-Choung Chang

Ching-Feng Lai

Tse-Liang Hsiao

Kun-I Liang

Kun-Yi Liang

Shu-Er Huang

Ann Huang

Hung-Chi Chen

Yueh-Ju Tang

Su Tao

Shou-Long Yu

Chi-Hsing Chen

Ching-Eeng Tsai

Yang-Kuang Liu

Bo-Chin Wang

Ann-Huang Dummy

A segmented magneto-conductive structure applied in rotating machines comprises a rotor assembly and a stator assembly. The rotor assembly includes a rotor yoke component and a plurality of rotor teeth components. The rotor yoke component is made of non-oriented silicon steel. The rotor teeth components are made of grain-oriented silicon steel. The stator assembly includes a plurality of stator yoke components and a plurality of stator teeth components. The stator yoke components and the stator teeth components are made of grain-oriented silicon steel. Thereby, an operational efficiency of a motor applying the segmented magneto-conductive structure is enhanced.

Segmented magneto-conductive structure applied in rotating machines

An improved floating apparatus for scroll compressors is disclosed, which is a multi-function device integrating a temperature protection mechanism, a pressure protection mechanism and a backflow-proof mechanism and therefore substantially is a floating seal member with overheating protection, high pressure protection and backflow-proof capabilities. In detail, the present disclosure provides a floating apparatus for scroll compressors that not only can be manufactured easily, but also capable of distributing the acting force resulting from the gliding block for providing better sealing effect while preventing the scroll compressors from being damaged by high temperature and high pressure.

Floating apparatus for scroll compressors

A scroll compressor including a block, a fixed scroll, an orbiting scroll, a crankshaft, an Oldham ring and an oil passage is provided, wherein the fixed scroll is fixed on the block, and the orbiting scroll, the crankshaft and the Oldham ring are disposed on the block. The fixed scroll and the orbiting scroll form a gas-in area, a compressing area and a gas-out area which are connected in a series. The orbiting scroll is eccentric connected with the crankshaft to orbit over the fixed scroll and drive the Oldham ring moving. A reciprocating motion area on the block is formed via the reciprocating motion between the block and the Oldham ring, wherein the block has an oil opening in the reciprocating motion area. Besides, one terminal of the oil passage is connected to the oil opening, and another terminal of the oil passage is connected to the gas-in area and the compressing area.

Structure for controlling lubricant's flow rate in scroll compressor

A scroll type compressor with an enhanced sealing arrangement includes two sealing rings, mounted one between a first part of a gliding block and a first chamber of a fixed scroll and another one between a second part of the gliding block and a second chamber of the fixed scroll, respectively. The sealing ring has a U-shape cross section characterized in having a center depth smaller than half of a total height of the cross section. By providing such sealing rings, damage in mounting the sealing rings can be reduced to a minimum, possible leakage from the damage can be avoided, the assembly process in producing the compressor can be improved, and the compressor can be successfully merchandized.

Scroll type compressor with an enhanced sealing arrangement

A scroll apparatus with an axial gap control function is described. The scroll apparatus is capable of controlling the axial gap between its fixed scroll and orbiting scroll. The scroll apparatus has a frame with a pair of indentations installed in the casing of the scroll apparatus, a pair of flexible elements installed at the lateral side top of the frame and spanning the pair of indentations for defining a suspended flexible segment at the span, a sidewall having a positioning ring with a downward protruding body corresponding to the indentation, in which the protruding body of the positioning ring is fixed to the flexible segment of the flexible element, a fixed scroll suspended at the positioning ring, and an orbiting scroll for orbiting into the fixed scroll.

Scroll apparatus with an axial gap control function

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 in circumferential direction, and a near triangle-shaped rim capable of forming tight engagement with said cut-off area so as to prevent permanent magnets from moving in radial direction.

Permanent magnet rotor having magnet positioning and retaining means

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.

Motor using permanent magnet rotor

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. The second force is proportional to the pressure difference when the pin is moving from the upper limit position to the lower limit position and the second force becomes a constant when the pin reaches the lower limit position. The first and second forces together provide a back pressure to the fixed scroll.

Scroll compressor with back pressure regulation mechanism

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. While the scroll machine is in compression operation, the valve member is at an oblique open position for allowing the working media flowing through the through passage.

Check valve device for a scroll machine

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.

Growing community of inventors

Hsinchu, Taiwan

Chun-Chung Yang