Abstract: A heat exchange ventilator includes a window frame, a lighting section inside the window frame; and a heat exchange element superimposed on the lighting section. The window frame includes an exhaust flow inlet, an exhaust flow outlet, an air supply flow inlet, an air supply flow outlet, an exhaust blower, and an air supply blower. The heat exchange element includes multiple heat transfer plates defining multiple air passages. Each heat transfer plate separates two air passages among the multiple air passages. Heat exchange plates are optically transparent and exchange sensible heat or total heat. The air passages include air supply passages and exhaust passages. Each air supply passage is between the air supply flow inlet and the air supply flow outlet. Each exhaust passage is between the exhaust flow inlet and the exhaust flow outlet. The air supply passages and the exhaust passages are alternatively arranged one by one.

Abstract: A heat exchange type ventilation device includes an supply air blower, a discharge air blower, a heat exchange element, and a pressure regulator. The supply air blower supplies outdoor air to an indoor space. The discharge air blower discharges indoor air to an outdoor space. The heat exchange element includes a heat exchanger plate. The heat exchanger plate separates an air supply path through which a supply air flow generated by the supply air blower flows, from an air discharge path through which a discharge air flow generated by discharge air blower flows, and allows sensible heat or total heat to be exchanged between the air supply path and the air discharge path (20). The pressure regulator is positioned upstream of the heat exchange element in the air supply path, and regulates pressure of the supply air flow.

Abstract: Partitioning member (1) for total heat exchange element includes porous base material (2), and porous base material (2) is filled with hydrophilic polymer compound (3) at a surface and an inside thereof. Hydrophilic polymer compound (3) is formed by polymerizing a low-molecular-weight organic compound having a quaternary ammonium group and an amide group, and represented by chemical formula (1): wherein A is a linear or branched alkylene group having 1 to 10 carbon atoms; R1, R2 and R3 are linear or branched alkyl groups each independently having 1 to 8 carbon atoms; and Y has a polymerizable functional group, and is polymerized to form a main chain of the hydrophilic polymer compound.

Abstract: A partition member for total heat exchange element (14) includes an ultrafine fiber portion (17) on a porous sheet (18). The ultrafine fiber portion (17) is impregnated with or coated with a moisture permeable substance (21), and water-insolubilized.

Abstract: A partition member for total heat exchange element (14) includes an ultrafine fiber portion (17) on a porous sheet (18). The ultrafine fiber portion (17) is impregnated with or coated with a moisture permeable substance (21), and water-insolubilized.

Abstract: Partitioning member (1) for total heat exchange element includes porous base material (2), and porous base material (2) is filled with hydrophilic polymer compound (3) at a surface and an inside thereof. Hydrophilic polymer compound (3) is formed by polymerizing a low-molecular-weight organic compound having a quaternary ammonium group and an amide group, and represented by chemical formula (1): wherein A is a linear or branched alkylene group having 1 to 10 carbon atoms; R1, R2 and R3 are linear or branched alkyl groups each independently having 1 to 8 carbon atoms; and Y has a polymerizable functional group, and is polymerized to form a main chain of the hydrophilic polymer compound.

Abstract: An automobile differential gear system capable of establishing an appropriate differential motion between the right and left driving axles of an automobile so that the automobile is able to run smoothly along a curve where the right and left driving axles are required to be driven at different revolving rates respectively. The system comprises a differential gear, a steering angle detecting unit for detecting a steering angle, a driving speed detecting unit for detecting the speed of the differential gear case, a pinion speed control unit which provides a control signal for controlling the differential motion of the right and left driving axles of the automobile, and a pinion driving unit for rotating the pinions to control the respective revolving rates of the right and left driving axles according to the control signal so that correct and quick response of the movement of the automobile to steering operation is achieved.