Patent application number | Description | Published |
20080247691 | BEARING DEVICE - A bearing assembly comprises a bearing ( | 10-09-2008 |
20090263267 | METHOD FOR MANUFACTURING A POROUS OIL-IMPREGNATED REVOLVING SHAFT ASSEMBLY - A method for manufacturing a porous oil-impregnated revolving shaft assembly includes following steps: 1) offering an amount of metal powder, a particle diameter of the metal powder ranging from 1 μm to 150 μm; 2) offering a mold cavity and filling the metal powder in the mold cavity to form a green piece, a plurality of pores being defined between the metal powder of the green piece; 3) heating the green piece at a high temperature to sinter the metal powder to obtain a sintered product, a volume ratio of pores of the sintered product ranging from 12% and 20%; 4) dipping the sintered product into oil to make the oil enter the pores of the sintered product to thereby obtain a final desired product for forming the porous oil-impregnated revolving shaft assembly. | 10-22-2009 |
20100019418 | METHOD FOR MANUFACTURING A REVOLVING SHAFT ASSEMBLY - A method for manufacturing a revolving shaft assembly includes the steps of: 1) offering a plurality of first nonmetallic powder; 2) offering a plurality of second nonmetallic powder; 3) offering a mold cavity and filling the first and second nonmetallic powder in the mold cavity to form a green piece, wherein a plurality of pores is defined in the green piece; 4) heating the green piece at a temperature between 1100° C. and 1550° C. to sinter the nonmetallic powder to obtain a sintered product; 5) dipping the sintered product in lubricant oil to make the lubricant oil enter the pores of the sintered product to thereby obtain a final desired product. | 01-28-2010 |
20100028192 | METHOD FOR MANUFACTURING A PLATE-TYPE HEAT PIPE - A method for manufacturing a plate-type heat pipe includes filling a cavity of a mold with a core, and filling first and second metal powders into the injection systems of a double-mode injection molder with opposite injection directions. The first and second metal powders are injected into the cavity, and the first metal powder adheres to the core and the second metal powder adheres to the first metal powder. The resulting green piece is removed from the mold and the core removed therefrom by thermal or chemical reaction, resulting in a chamber in the green piece. The green piece is heated to obtain a sintered product with a tight outer wall constituting the sintered second metal powder and a wick structure constituting the sintered first powder. Finally a working fluid is injected into the chamber, and the sintered workpiece is evacuated by vacuum and sealed. | 02-04-2010 |
20100071879 | METHOD FOR MANUFACTURING A PLATE-TYPE HEAT PIPE AND A PLATE-TYPE HEAT PIPE OBTAINED THEREBY - A method for manufacturing a plate-type heat pipe includes providing an elongated engaging plate and a base plate. A plurality of supporting members is secured on a top surface of the base plate. A second and third metal powders are filled onto the base plate, surrounding lower ends of the supporting members. The second and third metal powders are heated to obtain a first wick structure and a second wick structure. The first wick structure adheres to the top surface of the base plate and the second wick structure adheres to the top surface of the first wick structure. The base plate and the supporting members are secured to a bottom surface of the engaging plate to obtain a workpiece. A working fluid is injected into the workpiece and the workpiece is vacuumed to obtain the plate-type heat pipe. | 03-25-2010 |
20100077614 | METHOD FOR MANUFACTURING A WICK STRUCTURE OF A PLATE-TYPE HEAT PIPE - A method for manufacturing a wick structure of a plate-type heat pipe involves providing a base plate with a heat absorbing plate and two extending plates extending from opposite ends, providing a mold covering the base plate and with a first engaging portion corresponding to the heat absorbing plate and two second engaging portions corresponding to the extending plates, and filling metal powder into a gap between the mold and the base plate. The metal powder is heated to obtain a wick structure having one part adhered to a top surface of the heat absorbing plate and two other parts adhered to top surfaces of the extending plates of the base plate. The part of the wick structure adhered to a top surface of the heat absorbing plate has a thickness smaller than that of the other parts. | 04-01-2010 |
20100077615 | METHOD FOR MANUFACTURING A PLATE-TYPE HEAT PIPE - A method for manufacturing a plate-type heat pipe includes the steps of: offering a top plate, a base plate, a wick structure adhered to the base plate; securing the top plate onto the base plate to make the top plate contact with the base plate; offering a microwave oven which includes a cover and a heating member located at a center portion of the cover, the cover defining an opening at a side thereof to allow microwave to enter the cover, the heating member defining a chamber; putting the secured top and base plates into the chamber of the heating member and turning on the microwave oven to make the microwave produced by the microwave oven enter the cover, the heating member absorbing the microwave and transforming the microwave to heat energy to heat the plate-type heat pipe, whereby the base and top plates are heated and hermetically assembled together. | 04-01-2010 |
20100101761 | METHOD FOR MANUFACTURING A PLATE-TYPE HEAT PIPE - A method for manufacturing a plate-type heat pipe including providing a mold including a first cavity and a plurality of second cavities located above and communicating with the first cavity and depositing cores into the first cavity. First and second metal powder are injected into the mold by using a double-mode injection molder. The first metal powder securely adheres to the cores, and the second metal powder fills up the first and second cavities except the first metal powder located, thereby forming a green piece. The cores are removed from the green piece to define chambers in the green piece. The green piece is heated to obtain a sintered product with an outer wall, fins extending from the outer wall and a wick structure adhering inner surfaces of the outer wall. | 04-29-2010 |
20100126701 | PLATE-TYPE HEAT PIPE AND METHOD FOR MANUFACTURING THE SAME - A plate-type heat pipe includes a base plate having a first wick structure secured thereon and a covering plate mounted on the base plate. The base plate includes a central heat-absorbing plate and a pair of extending plates angling upwardly from opposite ends of the heat absorbing plate. The first wick structure includes a first adhering portion securely fixed to a top surface of a central portion of the heat absorbing plate, two second adhering portions angling upwardly from opposite ends of the first adhering portion and securely fixed to the top surface of lateral portions of the heat absorbing plate and top surfaces of the extending plates. The first adhering portion is thinner than the second adhering portion, and the second adhering portion thins from a central portion to opposite ends thereof. | 05-27-2010 |
20100326631 | PLATE-TYPE HEAT PIPE - An exemplary plate-type heat pipe includes a top plate, a bowl-shaped base plate, a wick structure arranged on inner surfaces of the top and base plates and a working liquid filled therein. The base plate engages and cooperates with the base plate to defining a sealed chamber between the base plate and top plate. The working liquid is contained in the sealed chamber. The base plate defines a heat absorbing portion at a central part thereof for contacting a heat generating component. Pits are defined in the inner surface of the heat absorbing portion. | 12-30-2010 |
20110000646 | LOOP HEAT PIPE - A loop heat pipe includes an evaporator and a tube hermetically connecting with the evaporator. The evaporator includes a metallic container and a wick structure disposed in an inner surface of the container. The wick structure includes a first wick portion thermally contacting the whole inner surface of the container and a second wick portion enclosed by the first wick structure and contacting with the first wick portion. A number of channels are defined between the first and second wick portions for receiving vaporized working medium. The tube communicates with the channels of the evaporator so that the vaporized working medium can flow from the channels into the tube. | 01-06-2011 |
20110000647 | LOOP HEAT PIPE - A loop heat pipe includes an evaporator and a tube hermetically connecting with the evaporator. The evaporator includes a metallic container and a first wick structure disposed on an inner surface of the container. The container defines a vapor outlet and a liquid inlet. The tube includes a vapor line connecting with the vapor outlet and a liquid line connecting with the liquid inlet of the evaporator. The vapor line and the liquid line of the tube communicate with each other. A second wick structure is adhered on a part of an inner surface of a wall of the tube and connects and communicates with the first wick structure at two opposite ends of the evaporator. | 01-06-2011 |
20110005725 | PLATE TYPE HEAT PIPE AND HEAT SINK USING THE SAME - A heat sink includes a fin assembly including a plurality of fins and a plate type heat pipe attached to the fin assembly. The plate type heat pipe includes a sealed shell in which a working fluid is filled, a wick layer formed on an inner face of the shell and a supporting member disposed in the shell. The supporting member includes a plurality of supporting portions and a plurality of bodies connecting the supporting portions. Each supporting portion includes a plurality of convex portions contacting a top of the wick layer and a plurality of concave portions contacting a bottom of the wick layer. The convex portions and the concave portions of each supporting portion are alternately arranged. Each convex portion and an adjacent concave portion cooperatively enclose a first through hole for the working fluid flowing therethrough. | 01-13-2011 |
20110008198 | METHOD FOR MANUFACTURING A PLATE-TYPE HEAT PIPE - A method for manufacturing a plate-type heat pipe includes providing a mold including a first cavity and a plurality of second cavities and depositing cores into the mold. Each core has a first portion in the first cavity and a second portion in a corresponding second cavity. First and second metal powder are filled into the mold. The cores are then removed from the mold to form a green piece by the first and second metal powder, which has first and second chambers therein. The green piece is sintered, whereby the first metal powder forms an outer wall of the heat pipe and the second metal powder forms a wick structure. The heat pipe has a heat absorbing portion having the first chambers and fins having the second chambers communicating with the first chambers. | 01-13-2011 |
20110011565 | PLATE-TYPE HEAT PIPE - A plate-type heat pipe includes a container, a wick structure and a plurality of supporting plates. The wick structure is adhered to an inner surface of the container. The supporting plates are received in the container and abut against opposite sidewalls of the container. Each of the supporting plates includes a connecting plate and a plurality of protruded portions extending from the connecting portion. A number of through holes are defined in the protruded portion. The supporting plates are arranged in tiers in a manner such that the protrude portions of a lower supporting plate abut against the connecting portion of an upper supporting plate, and the through holes of the supporting plates communicate with each other. | 01-20-2011 |
20110042044 | PLATE-TYPE HEAT PIPE - A plate-type heat pipe includes a top cover, a bottom cover, a first wick structure and a second wick structure. The bottom cover hermetically contacts with the top cover to form a container. A plurality of working fluid is contained in the container. The bottom cover has a heat absorbing plate. The first wick structure is adhered to inner surfaces of the top and bottom covers. The second wick structure is sandwiched between the top and bottom covers. Top and bottom ends of the second wick structure abut against the inner surface of the top cover and a central portion of the heat absorbing plate of the bottom cover. An area of the bottom end is smaller than that of the heat absorbing plate. | 02-24-2011 |
20110088875 | LOOP HEAT PIPE - An exemplary loop heat pipe includes a plate-type evaporator, a pipe, a condenser thermally connected with the pipe and a working medium contained in the closed loop. The plate-type evaporator defines an exit for vapor in a lateral portion thereof and an entrance for liquid in a top portion thereof. The pipe connects the exit and the entrance to form a closed loop. A first wick structure has a lower end thereof attached to a bottom portion of the evaporator and has an upper end thereof attached to the top portion of the evaporator. The entrance for liquid corresponds to the upper end of the wick structure. | 04-21-2011 |
20110088876 | PLATE-TYPE HEAT PIPE - A plate-type heat pipe includes a condensing plate, an evaporating plate and a first wick member. The evaporating plate cooperates with the condensing plate to define a hermetic container. Working fluid is contained in the container. The first wick member is formed on an inner surface of the condensing plate. The first wick member defines a plurality of through holes therein. | 04-21-2011 |
20110094712 | PLATE-TYPE HEAT PIPE - An exemplary plate-type heat pipe includes a condensing plate, an evaporating plate and a first wick portion. The evaporating plate cooperates with the condensing plate to define a hermetic container. Working fluid is contained in the container. The first wick portion is formed on an inner surface of the evaporating plate. The first wick portion defines through holes therein. | 04-28-2011 |
20110108243 | PLATE-TYPE HEAT PIPE - An exemplary plate-type heat pipe includes a hermetic container, working fluid contained in the container, a first wick portion and two second wick portions formed on inner surfaces of the container. The container includes an evaporating plate and a condensing plate facing each other. The evaporating plate includes a heat absorbing portion, two transition portions extending outwardly and upwardly from opposite ends of the heat absorbing portion, respectively, and two extending portions extending outwardly from outer ends of the transition portions, respectively. The first wick portion is formed on an inner surface of the heat absorbing portion. The second wick portions are formed on inner surfaces of the transition portions, respectively. The third wick portions are formed on inner surfaces of the extending portions, respectively. The third wick portions define capillary pores and a plurality of holes therein. | 05-12-2011 |
20120043059 | LOOP HEAT PIPE - A loop heat pipe includes an evaporator, a condenser, and a vapor line and a liquid line each connecting the evaporator with the condenser to form a closed loop. A predetermined quantity of bi-phase working medium is contained in the closed loop. A separator connects the liquid line. A cross section of the separator is larger than a cross section of the liquid line. The separator separates the liquid state working medium from the vapor state working medium when the working medium flows therethrough. | 02-23-2012 |
20120307452 | PORTABLE ELECTRONIC DEVICE WITH HEAT PIPE - An exemplary portable electronic device includes a printed circuit board, a heat generating electronic component mounted on the printed circuit board, a shell housing the printed circuit board, the heat generating electronic component and a heat pipe therein. The heat pipe includes an evaporating side and a condensing side. The evaporating side thermally contacts the heat generating electronic component, and the condensing side thermally contacts the shell. | 12-06-2012 |
20120307453 | ELECTRONIC DEVICE WITH HEAT PIPE CHAMBER COVER FOR DISSIPATING HEAT - An exemplary electronic device includes a base, a cover, side plates, a heat conduct plate, a wick structure, a working medium and at least one electronic element. The cover and the base cooperatively define a cavity. The at least one side plate extends from the cover and receives in the cavity. The heat conduct plate and the at least side plate and the cover cooperatively defines a sealed chamber. The wick structure is attached to an inner surface of the sealed chamber. The working medium is received in the wick structure. The at least one electronic element is received in the cavity and thermally connected to the heat conduct plate. | 12-06-2012 |