Abstract: An air-conditioning device includes: a compressor; an outdoor heat exchanger; an evaporating unit configured to evaporate refrigerant a heater unit configured to heat the air by using the heat of the refrigerant a liquid receiver arranged at the downstream side of the outdoor heat exchanger and a restrictor mechanism provided between the heater unit and the outdoor heat exchanger, wherein, in an operation state in which the flow of the refrigerant is restricted by the restrictor mechanism and heat is released in the heater unit, a first operation mode and a second operation mode are switched, the first operation mode being set such that the liquid-phase refrigerant is stored in the liquid receiver and the gaseous-phase refrigerant is guided to the compressor and the second operation mode being set such that the liquid-phase refrigerant stored in the liquid receiver is guided to the evaporating unit.
Abstract: This gas-liquid separator is provided with: a tank part which stores and separates a refrigerant; and a pipe connection part forming outlet/inlet ports for the refrigerant from the tank part. The pipe connection part has: a first connection part having a first connection pipe which guides the refrigerant to an expansion valve; a second connection part having a second connection pipe through which the cooled refrigerant returns; a third connection part having a third connection pipe which guides the refrigerant to a compressor; a fourth connection part having a fourth connection pipe which guides the refrigerant into the tank part from an outdoor heat exchanger; and a first flow path switching valve which allows the inside of the tank part to communicate with the third connection pipe during heating operations, and allows the second connection pipe to communicate with the third connection pipe during cooling operations.
Abstract: A present disclosure relates to a vehicle air conditioner including a blower. At least the blower is disposed within an engine compartment. The blower includes a motor that is configured to rotate a fan. A rotating shaft of the motor is diagonally arranged with an inclination angle that is greater than 0 degree and less than 90 degrees with respect to a vertical direction. An attachable/detachable direction of the motor with respect to the blower-is an upper side thereof.
March 25, 2019
July 8, 2021
Marelli Cabin Comfort Japan Corporation
Abstract: The casting mold is provided with: the molding wall portion forming the internal space; and the filling ports that open to the molding wall portion and that allow the molten metal to flow into the internal space. In this configuration the channel center lines of the filling ports intersect the surface of the heater at the non-perpendicular contact angle.
Abstract: In a method of manufacturing a fin-assembled tube by arranging a helical fin in an interior of a tube, a plate-shaped fin material is inserted into the interior of the tube and the helical fin is formed by twisting the fin material in the interior of the tube.
Abstract: A vehicle air-conditioning device is a heat pump type vehicle air-conditioning device including an external heat exchanger that performs heat exchange between refrigerant flowing the inside thereof and outside air. With the vehicle air-conditioning device, a controller functions as a temperature-difference calculation unit that calculates the temperature difference ?T between the refrigerant in a refrigerant flow path on the exit side of the external heat exchanger and the outside air, and in addition, the controller functions as a frost formation determination unit that determines that frost formation is caused on the external heat exchanger on the basis of the elapsed time to of a state in which the temperature difference ?T is equal to or larger than a frost-formation temperature difference at which the frost formation may be caused on the external heat exchanger.
Abstract: An air conditioning device for a vehicle includes a first flow path through which air subject to dehumidification flows, a second flow path through which air for recovery flows, a desiccant part and a controller. The desiccant part is fluidly communicated with the first and second flow paths, and configured to adsorb moisture contained in the air subject to dehumidification, and to discharge the moisture to the air for recovery. The controller is configured to control an air volume of the air subject to dehumidification and an air volume of the air for recovery so that the air volume of the air for recovery is less than the air volume of the air subject to dehumidification, after the air volume of the air for recovery reaches a prescribed air volume for achieving a target dehumidification amount of the air subject to dehumidification.
Abstract: The casting mold is provided with: the molding wall portion forming the internal space; the supporting portion supports the heater to the molding wall portion; and the filling port allows the molten metal to flow into the internal space. The heater has: the end portion (the fixed portion) supported by supporting portion; and the extending portion extended from the end portion. The internal space has: the supporting region accommodating the end portion; and the extending region accommodating the extending portion. The filling ports respectively open to the portions of the molding wall portion facing the supporting regions.
Abstract: The heater (structure) has the gaps facing the molding wall portion of the casting mold. The casting mold is provided with: the molding wall portion forming the internal space; and the gap-portion filling ports (filling ports) that open to portions of the molding wall portion facing the gaps of the heater and that allow the molten metal to flow into the internal space.
Abstract: A fin-assembled tube includes a helical fin arranged in an interior of a tube, wherein the tube has: a straight tube portion the center line of which extends in a substantially straight line; and a bent portion the center line of which is curved, and the helical fin is formed such that a helical pitch in an axial direction is longer in a portion positioned in the bent portion relative to the helical pitch in a portion positioned in the straight tube portion, the helical pitch being a pitch of a plate-shaped fin material twisted by a certain angle about the center line.
Abstract: An evaporator with a cold storage function includes: a plurality of refrigerant tubes which have refrigerant flow paths and which are disposed in parallel with an interval therebetween; and a cold storage material container sandwiched and bonded between adjacent refrigerant tubes among a plurality of the refrigerant tubes and to be filled with a cold storage material, wherein the cold storage material container is formed by superimposing a pair of cold storage plates, each of which includes accommodating concavities to be filled with the cold storage material, and a plurality of convexities are formed with an interval therebetween in standing walls of the accommodating concavities of each of the cold storage plates.