Hyundai Motor Company

Kia Motors Corporation

Gmb Korea Corp.

Ntm Co., Ltd.

Inzicontrols Co., Ltd.

Mvh Korea, Inc.

Kia Corporation

Cheol Soo Park

Jun Sik Park

Dong Suk Chae

Jea Woong Yi

Phil Gi Lee

Bong Sang Lee

Bonghoon Han

Seok Yoon Chang

Bong Hoon Han

Ho Young Jang

Jae Soo Jang

Tae Ho Han

Kwang Tai Kim

Philgi Lee

Kwang Sik Yang

Seong Kyu Park

Jeawoong Yi

Jae Sung Bae

Seo Kyu Kim

Jae Kyun Cho

In Hee Lee

Ju Bong Lee

A flow control valve apparatus is provided in which a main valve adjusts the flow rate of cooling water by operating a plurality of ports and a sub-valve that operates with the main valve adjusts the flow rates of the cooling water circulating through a cylinder block and a cylinder head. The flow rate of the cooling water is variously adjusted based on the operation conditions of a vehicle.

Flow control valve apparatus

A flow control valve apparatus switches a circulation direction of cooling medium according to a rotated position of a valve, and a disc provided in the valve controls the flow rate of the cooling medium flowing through a plurality of flow paths, so that the flow rate control of the cooling medium is diversified according to various conditions to improve cooling performance by efficiently circulating the cooling medium.

A flow control valve is provided to adjust the flow rate of coolant and a variable-separation-cooling process at the same time by adjusting the opening degree of the flow control valve. The ports are controlled simultaneously in a variable manner merely by the operation of the flow control valve and thus, a variable temperature control process for increasing the temperature of the entire engine, rapid engine warm-up, and a separated cooling process at the same time is realized.

Flow control valve

A flow control valve is arranged to simultaneously perform coolant flow control and variable split cooling, according to control of a path opening degree of the flow control valve. The flow control valve can perform four-port control for variably controlling four ports at once by operation of the flow control valve, and thus can implement variable temperature control for increasing a temperature of an engine, rapid warming-up of the engine, while performing split cooling at the same time.

The present invention relates to a technology that can simultaneously control the flow rate of a coolant and perform variable separate cooling by controlling the opening rate of a flow control valve. The flow control valve has an inlet port connected to a coolant outlet of a cylinder block and a plurality of outlet ports connected to a cooling inlet port of an engine such that the opening rate of a first outlet port is symmetrically changed in a first direction and a second direction from a mid-operation angle of the entire operation section of the flow control valve.

Flow control valve and method of controlling the same

A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.

Cooling system for vehicles and control method thereof

Disclosed is a coolant control valve unit having a sealing structure, the control valve unit including: a rotary valve provided with a valve coolant passage formed from an inner surface to an outer surface of the rotary valve; a valve housing in which the rotary valve is rotatably provided; a fitting coupled to the valve housing, and having a fitting coolant passage; and a sealing unit provided between a front surface of the fitting and the outer surface of the rotary valve, wherein the sealing unit includes: a sealing ring being in contact with the outer surface of the rotary valve; and a rubber ring provided on the front surface of the fitting, and bringing the sealing ring into contact with the outer surface of the rotary valve, wherein the rubber ring has an X-shaped cross-section, with a front groove, a rear groove, an inner groove, and an outer groove.

Coolant control valve unit having sealing structure

An engine cooling system having an EGR cooler is disclosed. The system includes a cylinder head provided on a cylinder block, a coolant pump that pumps a coolant to a coolant inlet side of the cylinder block, an EGR cooler that is branched from a coolant line between the coolant pump and the cylinder block, and is provided in a circulation line through which a coolant is recirculated to an inlet of the coolant pump, and a coolant control valve unit that is provided in a coolant output side of the cylinder head to receive a coolant exhausted from the cylinder head and a coolant exhausted from the cylinder block and controls coolants distributed to coolant parts.

Engine cooling system having EGR cooler

The present disclosure provides a method and system, for controlling a coolant circulating in an engine, including: selecting a reference inlet temperature for a coolant flowing through a coolant inlet of an engine; controlling an open rate of the coolant control valve unit based on the reference inlet temperature; sensing an actual inlet temperature of the coolant flowing through the coolant inlet of the engine; sensing an actual outlet temperature of a coolant flowing through a coolant outlet of the engine; calculating a difference value between the actual inlet temperature and the actual outlet temperature; and varying the reference inlet temperature according to the difference value.

Method and system for controlling coolant circulating in engine

A fail-safe control method for a vehicle cooling system, in which an engine and a vehicle can be properly operated even when a water temperature sensor malfunctions. When only one of two water temperature sensors malfunctions, control may be performed so that an engine and a vehicle can properly operate. When both the two water temperature sensors malfunction, the fail-safe function of the flow rate control valve can be enabled to entirely prevent cooling water from being overheated, thereby improving the reliability of the operation of the vehicle.

Fail-safe control method for vehicle cooling system

A cooling system for a vehicle and a control method thereof improves fuel efficiency through quick warm-up of an engine by controlling a flow rate of cooling water passing through an EGR cooler. In the cooling system and control method cooling water with an increased temperature through flow stagnation control is first supplied to an oil heat exchanger side. Heat energy generated from the engine is used to rapidly raise a cooling water temperature and an oil temperature. A warm-up characteristic is improved through the exhaust heat recovery function by heat exchange between exhaust gas and the cooling water in the EGR cooler.

Cooling system for a vehicle and a control method therefor

A water jacket for a cylinder block may include a first main body formed inside the cylinder block at a first side thereof, and a second main body formed at a second side thereof, and in which coolant flows, a first sub-body formed at an upper portion of the first main body, and a second sub-body formed at an upper portion of the second main body, each of the first and second sub-bodies being connected to an inside of a cylinder head to flow a coolant into an upper portion of the cylinder block and the cylinder head, a first insert member disposed between the first main body and the first sub-body to partition the first main body and the first sub-body, and a second insert member disposed between the second main body and the second sub-body to partition the second main body and the second sub-body.

Growing community of inventors

Suwon-si, South Korea

Cheol Soo Park