Abstract: The present disclosure relates to an air supply valve having a backflow prevention function and a valve module, for preventing backflow of air or gas through an outlet. The air supply valve includes a housing that includes a motor mounted therein and in which a supply flow path and an outlet of air are formed, a driver including a gear part for transmitting driving force of the motor and a converter for converting rotation of the gear part to linear motion, and a valve module that is coupled to an end of the converter and is opened while being spaced apart from the outlet of the housing to be connected to the supply flow path or is closed while being in contact with the outlet.

Abstract: The present disclosure relates to an air supply valve having a backflow prevention function and a valve module, for preventing backflow of air or gas through an outlet. The air supply valve includes a housing that includes a motor mounted therein and in which a supply flow path and an outlet of air are formed, a driver including a gear part for transmitting driving force of the motor and a converter for converting rotation of the gear part to linear motion, and a valve module that is coupled to an end of the converter and is opened while being spaced apart from the outlet of the housing to be connected to the supply flow path or is closed while being in contact with the outlet.

Abstract: Disclosed is an exhaust gas recirculation (EGR) valve for a vehicle which achieves regulation of the flow rate of exhaust gas introduced into an engine and the flow rate of fresh air. The EGR valve includes a fresh air flow channel, an EGR flow channel connected to the fresh air flow channel and a valve unit configured to open or close the EGR flow channel and to selectively block the fresh air flow channel according to an opened/closed state of the EGR flow channel. The valve unit includes a first valve to open or close the EGR flow channel and a second valve arranged at one side of the first valve at a different angle from an arrangement angle of the first valve. The second valve is moved along with the first valve to selectively interfere with a flow stream of fresh air in the fresh air flow channel.

Abstract: The present invention relates to a water pump in a vehicle. The water pump in a vehicle includes a pump cover which forms an upper side exterior appearance of the pump for housing an impeller to be rotated, a hollow rotor coupled on the same axis with the impeller to rotate altogether, and a housing coupled to the pump cover to house the rotor and a stator therein, wherein the pump cover includes a first rotation shaft extended toward the hollow in the rotor passed through the impeller, the housing includes a second rotation shaft extended toward the hollow in the rotor, the first rotation shaft has a communication hole formed therein to be in communication with the hollow, and the rotor has a communication passage recessed in a lower end portion thereof to a predetermined depth.

Abstract: Disclosed is a vacuum pump for vehicles which reduces noise of exhaust air generated during operation of the vacuum pump.

Abstract: An exhaust gas recirculation (EGR) valve with improved space efficiency, improved stability, and maximized driving force and a method of manufacturing cam thereof. The EGR includes a housing, a drive motor, and a power transmission unit connected to the drive motor to transmit power generated by the drive motor. The power transmission unit includes gears, a rotary shaft connected to one of the gears constituting the power transmission unit, an actuating cam connected to the rotary shaft to move in a rotational direction thereof, the actuating cam having a guide groove formed therein, and a valve member operatively connected to the actuating cam to selectively open and close an exhaust gas flow channel in the housing according to operation of the actuating cam. One end of the valve member contacts a top of the guide groove such that the valve member is operated simultaneously when the actuating cam rotates.

Abstract: The present invention relates to a water pump in a vehicle. The water pump in a vehicle includes a pump cover which forms an upper side exterior appearance of the pump for housing an impeller to be rotated, a hollow rotor coupled on the same axis with the impeller to rotate altogether, and a housing coupled to the pump cover to house the rotor and a stator therein, wherein the pump cover includes a first rotation shaft extended toward the hollow in the rotor passed through the impeller, the housing includes a second rotation shaft extended toward the hollow in the rotor, the first rotation shaft has a communication hole formed therein to be in communication with the hollow, and the rotor has a communication passage recessed in a lower end portion thereof to a predetermined depth.

Abstract: Actuator in a turbocharger of a vehicle and method for controlling the same is disclosed, in which a position of a vane is followed up in controlling a PWM signal to be applied to a motor according to time for preventing an overcurrent from flowing to the motor connected to the vane of the turbocharger.

Abstract: An actuator for a vehicle capable of selectively opening and closing a waste gate valve provided in a turbocharger is disclosed. The actuator includes a driving motor having a motor shaft, a gear assembly comprising a plurality of gears engaging with each other and with the motor shaft, a connecting unit connected with the gear assembly to move along the operation of the gear assembly, wherein the connecting unit is connected with a waste gate valve provided in a turbocharger housing.

Abstract: An exhaust gas recirculation valve in a vehicle has two valves that are controlled individually by using one driving source. The exhaust gas recirculation valve enables secure operation of a vehicle even if the driving source is out of order. The exhaust gas recirculation EGR valve includes a driving unit having a driving motor for rotating a motor shaft and an interlocking unit for receiving rotational force from the motor shaft. A rod portion moves upon reception of the rotational force. A valve unit at an end portion of the rod portion controls a flow rate of the exhaust gas. A valve housing is coupled to the driving unit as one unit and has an EGR port and a bypass port. The interlocking unit includes a valve return member for rotating the motor shaft forcibly to make the valve unit to move to an initial position.

Abstract: An exhaust gas recirculation valve in a vehicle has two valves that are controlled individually by using one driving source. The exhaust gas recirculation valve enables secure operation of a vehicle even if the driving source is out of order. The exhaust gas recirculation EGR valve includes a driving unit having a driving motor for rotating a motor shaft and an interlocking unit for receiving rotational force from the motor shaft. A rod portion moves upon reception of the rotational force. A valve unit at an end portion of the rod portion controls a flow rate of the exhaust gas. A valve housing is coupled to the driving unit as one unit and has an EGR port and a bypass port. The interlocking unit includes a valve return member for rotating the motor shaft forcibly to make the valve unit to move to an initial position.

Abstract: The present invention relates to an exhaust gas recirculation (EGR) valve for a vehicle. The EGR valve includes a valve housing connected to an exhaust line for discharging exhaust gas therethrough, having a flow line with an inside area divided for taking and re-circulating a portion of the exhaust gas to a suction manifold, a driving unit on one side of the valve housing, and a valve unit mounted in a flow line of the valve housing for receiving driving force from the driving unit directly to control flows of the exhaust gas flowing through the flow line at the same time individually, thereby making stable control of the exhaust gas flowing through the EGR valve, preventing damage caused by the high temperature exhaust gas, and preventing the exhaust gas from leaking to an outside of the EGR valve.

Abstract: Disclosed is a vacuum pump for vehicles which reduces noise of exhaust air generated during operation of the vacuum pump.

Abstract: Actuator in a turbocharger of a vehicle and method for controlling the same is disclosed, in which a position of a vane is followed up in controlling a PWM signal to be applied to a motor according to time for preventing an overcurrent from flowing to the motor connected to the vane of the turbocharger.

Abstract: The present invention relates to an exhaust gas recirculation (EGR) valve for a vehicle. The EGR valve includes a valve housing connected to an exhaust line for discharging exhaust gas therethrough, having a flow line with an inside area divided for taking and re-circulating a portion of the exhaust gas to a suction manifold, a driving unit on one side of the valve housing, and a valve unit mounted in a flow line of the valve housing for receiving driving force from the driving unit directly to control flows of the exhaust gas flowing through the flow line at the same time individually, thereby making stable control of the exhaust gas flowing through the EGR valve, preventing damage caused by the high temperature exhaust gas, and preventing the exhaust gas from leaking to an outside of the EGR valve.