Abstract: A centrifugal multiblade blower includes a first counter-flow prevention means that prevents part of air flowing through a scroll chamber from flowing through a first aperture defined between a multiblade fan and a suction-side case plate of a scroll casing back to a suction port, and a second counter-flow prevention means that prevents part of air flowing through the scroll chamber from flowing through a second aperture defined between the multiblade fan and a motor-side case plate of the scroll casing back to the upstream side of the scroll chamber. A length L1 of the scroll chamber measured in the motor-shaft axial direction is dimensioned to be longer than a length L2 of the multiblade fan measured in the motor-shaft axial direction. Additionally the scroll chamber is gradually enlarged toward a discharge port of the casing.

Abstract: An air conditioner unit comprises a case having a plurality of air passages defined therein; two pivotal mode doors pivotally arranged in the case to provide various operation modes of the air conditioner unit when assuming given angular positions, each of the mode doors having a pivot shaft of which leading end is exposed to the outside from a wall of the case; and a mode door actuating mechanism attached to an outer surface of the wall of the case to actuate the two pivotal mode doors.

Abstract: A heating, ventilation and air conditioning system including a casing with a vent outlet, a blower chamber within the casing, a wall cooperating with the casing to form a descending air passage permitting a downward flow of air discharged from the blower chamber and an ascending air passage permitting an upward flow of air passing through the descending air passage toward the vent outlet. A heating heat-exchanger is substantially horizontally disposed within the ascending air passage and arranged adjacent to a recessed portion of the wall and at least partially overlapping in the vertical direction with a cooling heat-exchanger disposed between the blower chamber and the heating heat-exchanger. A bypass air passage bypassing the heating heat-exchanger is substantially linearly aligned with the vent outlet via the ascending air passage. A foot vent passage is disposed above the heating heat-exchanger and between the blower chamber and the ascending air passage.

Abstract: A damper door controller is provided for remotely controlling damper doors of a cooler/heater unit of an automotive air conditioner. The controller comprises a knob holder; at least one rotary knob rotatably connected to the knob holder; a pinion coaxially connected to the rotary knob to rotate therewith; an elongate guide slot formed in the knob holder; a rack member slidably received in the guide slot, the rack member being operatively meshed with the pinion; a cable assembly including a control cable and a sleeve in which the control cable slides, the control cable having a leading end fixed to a leading end of the rack member; and a clamp member provided by the knob holder and extending across a generally middle portion of the guide slot to clamp a leading end of the sleeve.

Abstract: This invention provides an ethylene-vinyl alcohol copolymer composition having specific flow characteristics in the relationship between the heating time and the extrusion rate measured with a capillary rheometer (Koka Flow Tester), and a multilayered structure utilizing the same.From the EVOH composition according to the present invention, can be obtained a molded article, particularly a multilayered structure, having an excellent appearance; more particularly, in a continuous melt molding operation over a long period, a molded article, particularly a multilayered structure, having an excellent appearance can always be obtained without worsening the appearance with running time.

Abstract: This invention provides an ethylene-vinyl alcohol copolymer composition having specific flow characteristics in the relationship between the heating time and the extrusion rate measured with a capillary rheometer (Koka Flow Tester), and a multilayered structure utilizing the same.From the EVOH composition according to the present invention, can be obtained a molded article, particularly a multilayered structure, having an excellent appearance; more particularly, in a continuous melt molding operation over a long period, a molded article, particularly a multilayered structure, having an excellent appearance can always be obtained without worsening the appearance with running time.