Abstract: A heat exchange apparatus comprises an evaporation unit 1 for exchanging heat between a working fluid and a high-temperature fluid to thereby evaporate the working fluid, a condenser unit for exchanging heat between the working fluid and a low-temperature fluid to thereby condense the working fluid, an evaporation-side communication unit 5a for leading the working fluid evaporated in the evaporation unit 1 to the condenser unit 2, and a condenser-side communication unit 5b for leading the working fluid condensed in the condenser unit 2 to the evaporation unit 1. The high-temperature fluid is prevented by condenser-side shield plates 101, 102 from flowing to the condenser-side communication unit 5b. As a result, the heating and evaporation of the working fluid in the condenser-side communication unit 5b by the high-temperature fluid is prevented or reduced thereby preventing a dry-out phenomenon.

Abstract: A heat exchanger includes an evaporation side heat pipe in which a working fluid flowing therein is heat exchanged with a high-temperature fluid to be evaporated, a condensation side heat pipe in which the working fluid flowing therein is heat exchanged with a low-temperature fluid to be condensed, and an inner fin located at least in the evaporation side heat pipe to increase a heat transmission area of the evaporation side heat pipe with the working fluid. The evaporation side heat pipe and the condensation side heat pipe are connected to form a closed cycle, and the evaporation side heat pipe is arranged such that the working fluid flows in the evaporation side heat pipe in a direction different from a horizontal direction. Furthermore, the inner fin has a bottom end that is positioned above a top surface of the working fluid at least in a liquid state.

Abstract: An exhaust heat recovery device able to secure heat exchange performance even when tilted, provided with an evaporator exchanging heat between an exhaust gas and an evaporable and condensable working fluid sealed inside it and thereby evaporating the working fluid and a condenser exchanging heat between the working fluid evaporated by the evaporator and the cooling water and thereby condensing the working fluid, wherein the evaporator and condenser are arranged in a closed loop channel through which the working fluid circulates, the evaporator and condenser are arranged adjoining each other in the substantially horizontal direction, the evaporator is provided with a plurality of evaporation side heat pipes arranged in parallel and is provided with a first evaporation side header communicating one ends of the plurality of evaporation side heat pipe and a second evaporation side header communicating the other ends, and, when mounted in a vehicle in a horizontal state, the second evaporation side header arranged

Abstract: A loop type heat pipe includes an evaporator located to evaporate a refrigerant by heat-exchanging with a first fluid as a heat source, and a condenser located to liquefy and condense the evaporated vapor refrigerant by heat-exchanging with a second fluid to be heated. The condenser has a refrigerant condensation side on which the condensed liquid refrigerant flows, and a refrigerant un-condensation side on which the vapor refrigerant before being condensed flows. In addition, the loop type heat pipe is provided with a flow limitation portion for flowing the second fluid from the refrigerant condensation side toward the refrigerant un-condensation side. For example, the loop type heat pipe is suitably used for a waste heat recovery device.

Abstract: A waste heat recovery device includes a heat pipe in which a working fluid for transporting heat is enclosed, and a mode-switching valve for switching a heat recovery mode and a heat insulation mode. The heat pipe has a heating part for heating and evaporating the working fluid and a cooling part for cooling and condensing the evaporated working fluid. The heating part is made of a steel through which hydrogen gas permeates about at 500° C. and higher. In the heat recovery mode, the waste heat recovery device recovers heat of exhaust gas by using the heat pipe. Furthermore, in the heat insulation mode, a heat transport from the heating part to the cooling part is stopped.

Abstract: A dispersible colorant is provided which comprises a colorant and a chargeable resin pseudo fine particle of a size smaller than the size of the colorant being fixed or fused to the colorant, wherein the colorant itself has a surface charge. Thereby, it becomes possible to process a surface of the colorant while exploiting both the characteristic of a resin adhered and fixed to the surface of the colorant and the characteristic of the surface of the colorant, so that it is possible to provide a dispersible colorant that has sufficiently high dispersibility and a simple and easy method of producing the colorant, by use of a colorant that is essentially water-insoluble.

Abstract: An aqueous ink is provided which comprises a dispersible colorant comprising a colorant and chargeable resin pseudo fine particles smaller than the colorant, the colorant and the chargeable resin pseudo fine particles fixing to each other; and at least one of a water-soluble nonionic resin and an emulsion particle. As a result, it becomes possible to provide an aqueous ink suitable for ink jet recording which has high dispersion stability, is excellent in long-term dispersion stability, and is capable of providing an image excellent in fastness such as rubfastness, especially a highly glossy image. Further, there can also be provided an ink tank, an ink jet recording apparatus, an ink jet recording method, and an ink jet recorded image each using such aqueous ink.

Abstract: An evaporator has tubes, and evaporates working fluid therein by heat of exhaust gas. A condenser emits heat of the working fluid toward coolant so as to condense the working fluid, and returns the condensed working fluid to the evaporator. A fin for increasing an area for transmitting heat is disposed between the tubes, and is connected to the tubes. The fin has an operation force reducing part for reducing an operation force applied to the fin in accordance with a thermal expansion difference between the tubes. The operation force reducing part is disposed at a midpoint of the fin between the tubes.

Abstract: A heat recovery apparatus has an evaporating part for evaporating an internal fluid and a condensing part for condensing the internal fluid evaporated in the evaporating part. The evaporating part and the condensing part are in communication with each other through a looped passage for circulating the internal fluid therethrough. The evaporating part has evaporating heat pipes and evaporating fins. Each evaporating heat pipes has flange portions at longitudinal ends thereof. The flange portions project in a direction perpendicular to a longitudinal direction of the evaporating heat pipe and have a tubular shape. The evaporating heat pipes and the evaporating fins are alternately stacked and brazed, and the flange portions of the adjacent evaporating heat pipes are coupled to and brazed to each other such that communication portions are provided by the coupled flange portions and longitudinal ends of the evaporating heat pipes.

Abstract: A waste heat collecting apparatus has a loop-type heat pipe, which has a vaporizing portion arranged in an area for exhaust gas passage and a condensing portion provided in a water tank, through which coolant foran engine flows. Working fluid is circulated from the vaporizing portion to the condensing portion and back to the vaporizing portion. A valve device is provided at a downstream side of the condensing portion, wherein the valve device is operated to open or close a fluid passage for the working fluid depending on an inner pressure of the heat pipe.

Abstract: A dispersible colorant suitable for ink-jet recording ink is manufactured by a method using aqueous precipitation polymerization. The ink has high dispersion stability and can form a high-quality image excellent in fastness properties. The method includes at least a dispersing step of dispersing a colorant into an aqueous solution by means of a dispersant, an aqueous precipitation polymerization step of adding a resin monomer and a radical polymerization initiator to the solution into which the colorant is dispersed to manufacture a dispersible colorant having a chargeable resin pseudo-fine particle, fixing thereon by means of aqueous precipitation polymerization, and an ultrafiltration step of subjecting the aqueous solution containing the dispersible colorant to ultrafiltration to obtain the dispersible colorant.

Abstract: An aqueous ink is provided which comprises a dispersible colorant comprising a colorant and chargeable resin pseudo fine particles smaller than the colorant, the colorant and the chargeable resin pseudo fine particles fixing to each other; and at least one of a water-soluble nonionic resin and an emulsion particle. As a result, it becomes possible to provide an aqueous ink suitable for ink jet recording which has high dispersion stability, is excellent in long-term dispersion stability, and is capable of providing an image excellent in fastness such as rubfastness, especially a highly glossy image. Further, there can also be provided an ink tank, an ink jet recording apparatus, an ink jet recording method, and an ink jet recorded image each using such aqueous ink.

Abstract: A dispersible colorant, including a colorant and a chargeable resin pseudo fine particle having a sulfonic group, which is smaller than the colorant, in which the sulfonic group of the dispersible colorant has a surface functional group density of 100 ?mol/g or more, is provided. The dispersible colorant has sufficiently high dispersion stability without causing detachment of the resin component from the colorant, while retaining long-term stability. The use of the dispersible colorant allows an aqueous ink-jet recording ink, which is excellent in discharge stability, an ink tank, an ink-jet recording apparatus, an ink-jet recording method, and an ink-jet recording image to be provided.

Abstract: A colorant having self-dispersibility is disclosed. This colorant are composed of colorant particles and flat chargeable resin pseudo fine particles smaller than the colorant particles, and the colorant particles and the flat chargeable resin pseudo fine particles are fused together.

Abstract: Provided are an aqueous ink containing: water; multiple water-soluble organic solvents; and a dispersible colorant, the aqueous ink containing a good medium with respect to the dispersible colorant and a bad medium with respect to the dispersible colorant as the water-soluble organic solvents, in which: the dispersible colorant is a dispersible colorant having a colorant and chargeable resin pseudo fine particles each of which is smaller than the colorant in which the colorant and the chargeable resin pseudo fine particles fix to each other; and when a total amount of the good medium in the ink (mass %) is denoted by A and a total amount of the bad medium in the ink (mass %) is denoted by B, A:B is in the range of 10:5 to 10:30.

Abstract: A liquid ejection head has an element substrate on which a plurality of heaters for generating energy for ejecting liquid droplets are disposed, a nozzle forming member laminated on the main surface of the element substrate and including a plurality of nozzles each having an ejection port for ejecting liquid droplets, a bubble forming chamber in which bubbles are formed by a heater, and a supply path for supplying liquid from a supply chamber to the bubble forming chamber. The nozzle forming member has a portion located in the vicinity of the heaters on the supply path side where the height of the nozzles is reduced, whereby the height of the nozzles changes toward the supply chamber.

Abstract: A dispersible colorant is provided which comprises a colorant and a chargeable resin pseudo fine particle of a size smaller than the size of the colorant being fixed or fused to the colorant, wherein the colorant itself has a surface charge. Thereby, it becomes possible to process a surface of the colorant while exploiting both the characteristic of a resin adhered and fixed to the surface of the colorant and the characteristic of the surface of the colorant, so that it is possible to provide a dispersible colorant that has sufficiently high dispersibility and a simple and easy method of producing the colorant, by use of a colorant that is essentially water-insoluble.

Abstract: A liquid jet recording head comprises a constituting member formed from a cured product of a resin composition comprising (1) a curable epoxy compound, (2) a compound having a functional group reactive to the curable epoxy compound and a fluorocarbon moiety, and (3) a curing agent.

Abstract: A liquid ejection head has an element substrate on which a plurality of heaters for generating energy for ejecting liquid droplets are disposed, a nozzle forming member laminated on the main surface of the element substrate and including a plurality of nozzles each having an ejection port for ejecting liquid droplets, a bubble forming chamber in which bubbles are formed by a heater, and a supply path for supplying liquid from a supply chamber to the bubble forming chamber. The nozzle forming member has a portion located in the vicinity of the heaters on the supply path side where the height of the nozzles is reduced, whereby the height of the nozzles changes toward the supply chamber.

Abstract: The aqueous ink of the present invention includes: a coloring material, wherein the coloring material is a dispersible colorant comprising a colorant and chargeable resin pseudo fine particles smaller in size than the colorant, and the chargeable resin pseudo fine particles are fixed to the colorant; water; and at least one kind of salt selected from the group consisting of (M1)2SO4, CH3COO(M1), Ph-COO(M1), (M1)NO3, (M1)Cl, (M1)Br, (M1)I, (M1)2SO3, and (M1)CO3, wherein M1 represents an alkali metal, ammonia, or organic ammonium and Ph represents a phenyl group.