Abstract: The present invention relates to an air compressor configured to deliver compressed air to a fuel cell system, and more particularly, to a technology related to an air compressor in which a part of sucked air is used as cooling air for cooling a bearing and a motor, and a flow path for the cooling air is disposed adjacent to a coolant flow path, thereby improving cooling performance of the cooling air.

Abstract: A heat exchanger comprising a plurality of first plates and a plurality of second plates disposed between two end plates. The first plates and the second plates are alternatingly arranged in a stacked relationship. When in the stacked relationship, the first and second plates form at least a first flow path for a first fluid/medium, a second flow path for a second fluid/medium, and a third flow path for a third fluid/medium.

Abstract: The present invention describes a pipe connector that includes a female connector, male connectors which are coupled to both sides of the female connector, respectively, each having beads protruding from the outer surface thereof, and locking members which, when the male connectors are coupled thereto in a state where the locking members are temporarily coupled to chamber portions formed at both sides of the female connector, each move on the chamber portion with the beads locked onto surface thereof. The locking members are made of a synthetic resin material, and a reinforcement plate made of a metal material is coupled to the one surface of each of the locking members, onto which the beads are locked.

Abstract: A plate heat exchanger for a refrigerant circuit, specifically for a refrigerant circuit in a vehicle, having channel plates with channel-forming cut-outs, of which at least two channel plates are in each case arranged into channel plate stacks, forming at least one channel, wherein first channel plate stacks for a first fluid and second channel plate stacks for a second fluid are stacked alternatingly between two cover plates with separating plates arranged therebetween to separate opposing channels, at least one of which cover plates has fluid connections for the first and/or the second fluid, wherein the channel-forming cut-out of in each case at least one channel plate of the first and second channel plate stacks has at least one stabilizing bridge oriented transversely to the channel.

Abstract: The present invention relates to an electrification unit of an electrostatic precipitator, and more particularly, to an electrification unit having a discharge electrode, which connects a plurality of unit discharge electrodes in a row by means of a connecting terminal, and a groove-shaped fixing structure provided in a casing so that the connecting terminal and a connection part of the unit discharge electrode can be simply fixedly inserted into the corresponding groove, thereby providing excellent assemblability and electrical insulation and improving manufacturability and electrical stability.

Abstract: Disclosed are a vehicle air conditioner and a control method therefor, the air conditioner masking the initial operating noise of an electric compressor with the operating sound of a BLDC blower motor, thereby reducing the noise heard by a user. The vehicle air conditioner cools and heats the interior space of a vehicle by using a refrigerant line including a compressor, an outdoor heat exchanger, an expansion means, and an evaporator, includes a blower wheel for blowing air into the interior space of the vehicle and a blower motor for rotating the blower wheel, and has a control unit for operating the compressor after delaying same until the blower motor reaches a minimum RPM, if the compressor is in a driving condition while the blower motor is turned on.

Abstract: Heat pump system for a vehicle comprising a refrigerant line circulating through a compressor, an outdoor heat exchanger, an expansion means, and an indoor heat exchanger, in which a refrigerant circulating through the indoor heat exchanger exchanges heat with air discharged to the interior; a first coolant line which circulates through an engine and a heater core in which a coolant circulating through the heater core exchanges heat with the air discharged to the interior; and a second coolant line which circulates through an electric components and an electric radiator, a water-cooled condenser which exchanges heat between engine heat of the first coolant line and the refrigerant; and a chiller provided upstream of the compressor in the refrigerant flow direction which exchanges heat between electric heat of the second coolant line and the refrigerant, wherein the water-cooled condenser is provided downstream of the compressor in the refrigerant flow direction.

Abstract: The present invention provides a manifold refrigerant module comprising: a manifold plate having a plurality of refrigerant flow paths formed therein; and a plurality of heat exchangers arranged on the manifold plate, wherein the plurality of heat exchangers are arranged in the left-right direction or the up-down direction.

Abstract: A fluid-controlling valve assembly according to an embodiment includes a housing and a rotor installed inside the housing to be rotatable in accordance with air-conditioning modes, and the rotor is stacked in two stages along the axial direction such that fluid channels enabling fluid to flow may be formed in each of the first stage and the second stage.

Abstract: The present invention relates to a valve assembly for controlling fluid. The valve assembly for controlling fluid, according to one embodiment of the present invention, comprises: a housing; an actuator coupled to one side of the housing so as to provide power; a rotor which can rotate inside the housing and which receives power from the actuator; and a port unit which is coupled to one side of the housing, and to which a fluid hose is connected, wherein the rotor can be divided such that at least two multi-way valves can be controlled.

Abstract: The present invention relates to a toroidal motor in which a coil is wound around a yoke, and more particularly, to a toroidal motor in which a process of winding a coil starts from an inside of a yoke to ensure a sufficient insulation distance from a rotor side housing, a busbar assembly is disposed on an upper portion of the yoke to make it easy to connect a busbar and the coil, and the busbar is configured so as not to cover a slot, through which cooling air flows, to ensure cooling performance and simplify an entire structure of the motor.

Abstract: A device for reducing the noise of motor vehicle air conditioning units, having at least one air flow limiting element which projects laterally on an outer circumference of an axial air inlet opening vertically out of an air inlet opening plane and has a surface which limits or blocks a flow path next to the axial air inlet opening, at least two plate-shaped air guiding elements, which are arranged on an inside of a recirculation air flap in mutually spaced parallel planes at right angles to an axis of rotation of the recirculation air flap, and an air flow guiding element which is arranged on a fan tongue and extends radially from the fan tongue at a distance from a fan wheel into a spiral flow channel.

Abstract: The present invention relates to a heat exchanger, particularly, a two-row heat exchanger. Accordingly, the present invention has been made in an effort to solve the above-mentioned problem in the related art, and an object of the present invention is to provide a heat exchanger, i.e., a two-row heat exchanger in which coolants in different cooling cycles flow in respective rows, and a tube width in a first row is larger than a tube width in a second row in order to solve a problem in which heat exchange performance deteriorates in case that temperatures of the coolants flowing in the first and second rows are greatly different in accordance with modes for cooling and heating an interior.

Abstract: The present disclosure relates to a reservoir tank and a coolant module including the same, and the reservoir tank in the embodiment may include a tank body configured to store a coolant, an inlet through which the coolant is introduced into the tank body, an outlet through which the coolant is discharged from the tank body, a first flow path extending in a horizontal direction from the inlet, and second and third flow paths branching off from the first flow path, in which a lower flow in the first flow path is introduced into the second flow path, and an upper flow in the first flow path is introduced into the third flow path.

Abstract: The present disclosure relates to a multi-way valve and a thermal management system including the same, and the multi-way valve in the embodiment may include a body, a plurality of ports formed in an outer peripheral surface of the body, a plurality of flow paths configured to selectively connect the plurality of ports, a separation wall configured to divide the inside of the body into a plurality of chambers, and a communication flow path formed between at least any one of the plurality of chambers and another chamber and configured to allow the two chambers to fluidly communicate with each other.

Abstract: The present invention relates to a coolant module configured to be applied to a vehicle, and to a coolant module in which a coolant manifold and components may be integrated, thereby implementing miniaturization and weight reduction and reducing the number of components and the number of assembling processes. In addition, the present invention relates to a coolant module in which a through-hole is formed in a coolant manifold to prevent a vacant space excluding a coolant channel from being sealed, such that foreign substances or moisture may be discharged through the through-hole, damage caused by thermal expansion may be prevented, and whether a coolant leaks may be identified.

Abstract: The present invention relates to a cooling module including a first radiator, and a second radiator stacked and disposed at an upstream side of the first radiator based on a flow direction of cooling air, in which the first radiator includes a main inlet port connected to an engine so that a coolant is introduced through the main inlet port, a main discharge port through which the coolant is discharged, an auxiliary discharge port connected to a third radiator, which is installed at a position that does not overlap the first radiator and the second radiator in the flow direction of the cooling air, so that the coolant is discharged through the auxiliary discharge port, and an auxiliary inlet port through which the coolant is introduced, such that the first radiator may be easily connected to the third radiator, which may improve cooling performance.

Abstract: A drive circuit and control system are provided for operating a three-phase motor and a heater separately or concurrently using shared switching resources. The circuit includes a first switching unit coupled to a power supply and to respective first terminals of the motor and a heating unit, a second switching unit coupled to second terminals of the motor, and a third switching unit coupled to second terminals of the heating unit. A control unit drives the motor by turning on switches of the first and second switching units and applying space-vector PWM. For heater operation, the control unit sets a power control output value and modulates the third switching unit, and turns on the first switching unit when PWM duty matches the output value. During concurrent operation, PWM duties of the first switching unit are compared and a corresponding switch of the third switching unit is turned on.

Abstract: The present invention relates to a BLDC motor controller for controlling a BLDC motor, and more particularly, to a BLDC motor controller that separates the ground of a battery power input line and the ground of an emergency operation signal line for an operation in an emergency operation mode, thereby preventing an abnormal operation in the emergency operation mode caused by noise.

Abstract: An arrangement for guiding electrical connections through an opening of a housing for a device for driving a compressor, having a connection arrangement with at least one holding element and at least one electrically conductive connection element, is based on the object of indicating a solution which enables a simple and secure guiding of electrical connections through a housing, wherein the effort for the production and the assembly and the costs connected thereto are to be minimized and at the same time, the preciseness during assembly and thus the quality are to be improved. This object is achieved in that the holding element has one positioning means each on two opposite sides.