Variable compression ratio device and internal combustion engine including the same
    11.
    发明授权
    Variable compression ratio device and internal combustion engine including the same 有权
    可变压缩比装置和包括其的内燃机

    公开(公告)号:US09188067B2

    公开(公告)日:2015-11-17

    申请号:US14089134

    申请日:2013-11-25

    CPC classification number: F02D15/04

    Abstract: A variable compression ratio device may include a piston assembly having double pistons of which the volume may be varied, a lifter relatively moving one piston of the double pistons with respect to the other piston of the double pistons, a guide unit engaged with the piston assembly and guiding a movement of the one piston with respect to the other piston, and a locking unit selectively coupling the one piston to the other piston.

    Abstract translation: 可变压缩比装置可以包括具有双活塞的活塞组件,体积可以变化,升降器相对于双活塞的另一活塞相对移动双活塞的一个活塞,与活塞组件接合的引导单元 并且引导所述一个活塞相对于所述另一活塞的运动,以及锁定单元,其将所述一个活塞选择性地联接到所述另一个活塞。

    Cooling water flow control device of cooling system for vehicle

    公开(公告)号:US11236709B2

    公开(公告)日:2022-02-01

    申请号:US17029258

    申请日:2020-09-23

    Abstract: A cooling water flow control device of a cooling system for a vehicle can shorten a warm-up time of a cooling water being supplied to an exhaust gas recirculation (EGR) cooler. The cooling water flow control device includes: the EGR cooler that cools an exhaust gas supplied to an intake system of an engine using cooling water and includes an EGR cooler outlet through which the cooling water is discharged; a water pump to circulate the cooling water to the EGR cooler and the engine at an engine startup; and a direct flow path connected to a vent hole formed in the engine to guide the cooling water from the vent hole to a downstream side of an EGR cooler outlet.

    Control method of cooling system for vehicle

    公开(公告)号:US10890104B2

    公开(公告)日:2021-01-12

    申请号:US16167044

    申请日:2018-10-22

    Inventor: Han Sang Kim

    Abstract: A method for controlling a cooling system for a vehicle is provided. The system includes an engine, an EGR cooler, an oil cooler, a heater, a radiator, and a controller. The engine, the EGR cooler, the oil cooler, the heater, and the radiator are respectively connected through a coolant line and coolant circulates through the engine, the EGR cooler, the oil cooler, the heater, and the radiator by operation of a water pump. The controller receives the coolant from the engine and operates a control valve connected with the oil cooler, the heater, and the radiator. The method includes: sensing driving conditions and operating the control valve when a cooling mode is required to decrease the temperature within the vehicle based on the sensed driving conditions. The control valve is operated based on modes controlled depending on a coolant temperature, and among the plurality of modes, one is iteratively performed.

    WATER JACKET OF ENGINE
    14.
    发明申请

    公开(公告)号:US20210003063A1

    公开(公告)日:2021-01-07

    申请号:US16660314

    申请日:2019-10-22

    Inventor: Han Sang Kim

    Abstract: A water jacket of an engine is capable of implementing cooling water flows as both a cross flow and a parallel flow. The water jacket includes a head water jacket formed in a cylinder head of an engine; a block water jacket formed in a cylinder block of the engine; and a variable partition wall which is configured to induce a cross flow of cooling water in a space between positions of cylinders in the head water jacket, where the variable partition wall has a shape configured to be varied according to an engine operating condition, and the variable partition wall allows the cooling water to flow in a selected one of the cross flow and a parallel flow according to the shape which is varied in head water jacket.

    Engine system for exhausting condensate water and method of using the engine system

    公开(公告)号:US10100788B2

    公开(公告)日:2018-10-16

    申请号:US15260648

    申请日:2016-09-09

    Abstract: An engine system for exhausting condensate water includes an intake line into which fresh air flows, an engine including a plurality of cylinders for generating driving torque by burning fuel, an exhaust line in which exhaust gas exhausted from the cylinders flows, a low-pressure exhaust gas recirculation system (LP-EGR) through which the exhaust gas flowing through the exhaust line is resupplied to the cylinder, and a turbocharger including a turbine rotated by the exhaust gas exhausted from the cylinder, a compressor for compressing external air and exhaust gas recirculation (EGR) gas by being rotated together with the turbine, and an exhaust pipe for exhausting condensate water to the outside, wherein the condensate water generated by the external air flows through the intake line and the EGR gas is recirculated by the LP-EGR.

    Variable compression ratio device
    17.
    发明授权
    Variable compression ratio device 有权
    可变压缩比设备

    公开(公告)号:US09347385B2

    公开(公告)日:2016-05-24

    申请号:US14472033

    申请日:2014-08-28

    CPC classification number: F02D15/02 F02B75/044 Y02T10/12

    Abstract: Disclosed is a variable compression ratio device which changes a top dead center of a piston provided in an engine depending on a driving state of the engine. The variable compression ratio device may include: a lower piston reciprocally movable in a cylinder of the engine and connected with a connecting rod to rotate a crankshaft, an operation chamber, an upper piston disposed above the lower piston and partially inserted into the operation chamber, a push plate dividing the operation chamber into upper and lower spaces, a hydraulic pressure chamber which is the lower space, an elastic member provided in the upper space to push the push plate downward, a hydraulic pressure supply unit selectively supplying hydraulic pressure to the hydraulic pressure chamber, and a hydraulic pressure supply pathway connecting the hydraulic pressure supply unit and the hydraulic pressure chamber for supplying the hydraulic pressure.

    Abstract translation: 公开了一种可变压缩比装置,其根据发动机的驱动状态改变设置在发动机中的活塞的上止点。 可变压缩比装置可以包括:下活塞,其可在发动机的气缸中往复运动并与连杆相连以旋转曲轴,操作室,设置在下活塞上方并部分插入到操作室中的上活塞, 将操作室分隔成上部和下部空间的推板,作为下部空间的液压室,设置在上部空间中以将推板向下推动的弹性构件,选择性地向液压供给液压的液压供给单元 以及连接液压供给单元和用于供给液压的液压室的液压供给路径。

    CONTROL APPARATUS AND METHOD FOR PREVENTING BOILING OF EGR COOLER

    公开(公告)号:US20210156344A1

    公开(公告)日:2021-05-27

    申请号:US16898876

    申请日:2020-06-11

    Inventor: Han Sang Kim

    Abstract: The present disclosure relates to a control apparatus and method for preventing boiling of an exhaust gas recirculation (EGR) cooler, the apparatus including a coolant inflow passage configured to allow coolant to flow into the EGR cooler, a coolant discharge passage having one end connected to the EGR cooler to allow the coolant cooling EGR gas to be discharged, an EGR valve positioned adjacent to the EGR cooler to control a flow rate of gas flowing into the engine, and a control unit configured to determine the flow rate of the coolant flowing into the EGR cooler according to a number of revolutions of the engine, determine an opening amount of the EGR valve, determine whether the EGR cooler is in a micro-boiling condition, and perform compensation to perform boiling prevention when the EGR cooler satisfies the micro-boiling condition.

    Control method of cooling system for vehicle

    公开(公告)号:US10890103B2

    公开(公告)日:2021-01-12

    申请号:US16166986

    申请日:2018-10-22

    Abstract: A method for controlling a vehicle cooling system is provided. The system includes an engine, an EGR cooler, an oil cooler, a heater, a radiator, and a controller. The engine, the EGR cooler, the oil cooler, the heater, and the radiator are respectively connected through a coolant line and coolant circulates through the engine, the EGR cooler, the oil cooler, the heater, and the radiator by operation of a water pump. The controller receives the coolant from the engine and operates a control valve that is connected with the oil cooler, the heater, and the radiator. The method includes sensing driving conditions and operating the control valve when a warm mode is required to increase the temperature within the vehicle based on the sensed driving conditions. The control valve is operated based on first to third modes depending on a coolant temperature.

    Valve opening control apparatus and method of gasoline EGR system

    公开(公告)号:US10724453B2

    公开(公告)日:2020-07-28

    申请号:US16210577

    申请日:2018-12-05

    Inventor: Han Sang Kim

    Abstract: The present disclosure relates to a valve opening control apparatus and method of a gasoline EGR system. The valve opening control apparatus includes a gasoline engine generating driving power through combustion, an intake line through which an intake gas flows into a combustion chamber of the gasoline engine, an exhaust line through which an exhaust gas is discharged from the combustion chamber, a recirculation line branched off from the exhaust line and connected to the intake line, an EGR cooler, positioned in the recirculation line, cooling the exhaust gas flowing in the intake line, an EGR valve configured to control an amount of the exhaust gas flowing in the intake line, an emergency (EM) filter positioned in one end of the EGR valve, and a flow rate regulator configured to control an opening amount of the EGR valve according to a clogging state of the EM filter.

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