A system for feeding water to at least one combustion chamber in an internal combustion engine having: a tank designed to contain a quantity of water; a feeding duct; a pump designed to draw water from the tank and to pump pressurised water into the feeding duct; and at least one silver-containing body which is contained in the tank in contact with the water.

A fuel supply system for the active purging of at least one antechamber of a spark-ignition internal combustion engine, using a gaseous fuel, the internal combustion engine comprising at least one main combustion chamber, which is connected to the at least one antechamber at least on the fuel side. An evaporator is disposed upstream from the at least one antechamber.

A vehicle thermal management system (VTMS) includes: an Integrated Thermal Management Valve (ITM) for receiving coolant through a coolant inlet connected to an engine coolant outlet of an engine, and for distributing the coolant flowing out toward a radiator through a coolant outlet flow path connected to a heat exchange system. The heat exchanger system includes at least one among a heater core, an oil warmer, and an Auto Transmission Fluid (ATF) warmer and the radiator. The VTMS also includes: a water pump positioned at the front end of an engine coolant inlet of the engine; a coolant branch flow path branched from the front end of the engine coolant inlet to be connected to an Exhaust Gas Recirculation (EGR) cooler together with the coolant outlet flow path; and a Smart Single Valve (SSV) for adjusting a coolant flow in a coolant outlet flow path direction and an EGR cooler flow path direction on the coolant branch flow path.

A system for diagnosing lack of coolant of a vehicle to which an integrated thermal management valve is applied according to the present disclosure includes an integrated thermal management valve including a plurality of valves which are openable and closable, and configured to selectively distribute coolant introduced from a head of an engine to front ends of a radiator, a heater, and an oil cooler, a coolant temperature sensor installed on each of a coolant inlet, a coolant outlet, and a block of the engine and configured to measure a temperature of the coolant, and a control unit configured to determine whether the coolant is insufficient by monitoring a decrease amount of a coolant temperature difference measured from the block and the coolant outlet, and finally determine whether the coolant is insufficient by accumulating an increase amount of a temperature difference between the coolant outlet and the coolant inlet.

A hybrid heat transfer assembly includes operating equipment having a coolant loop including a cooling fluid inlet and a cooling fluid outlet. A radiator has a radiator inlet connected to the cooling fluid outlet, and a radiator outlet connected to the cooling fluid inlet. A radiator fan proximate the radiator directs air across the radiator. A chiller includes an evaporator having an evaporator inlet connected to the cooling fluid outlet, and an evaporator outlet connected to the cooling fluid inlet. A compressor is connected to the evaporator, a condenser is connected to the compressor, and an expansion valve is connected to the condenser and evaporator. A refrigerant loop connects the evaporator and compressor, the condenser and compressor, and the expansion valve to the condenser and the evaporator. A condenser fan proximate the condenser directs air across the condenser.

A pneumatic system installed on a vehicle and method of using the system to preheat compressor oil and/or components of the system to promote operation in cold weather conditions. The pneumatic system includes a compressor that generates compressed air in which oil is entrained, a separation tank that separates the oil from the air prior to the oil being returned to the compressor, and a heating element located within the separation tank and contacting the oil within the separation tank. Engine coolant of an engine cooling system of the vehicle flows through the heating element and the heating element transferring heat from the engine coolant to the oil within the separation tank to increase the temperature of the oil.

A cooling circuit for a vehicle may include a plurality of cylinder heads into which cooling water is continuously introduced from a plurality of cylinder blocks oppositely disposed parallel with each other, wherein a flow control valve may include a head port, through which the cooling water discharged from the plurality of cylinder heads is joined and the joined cooling water is introduced into the flow control valve, and wherein the flow control valve also may include a set of ports including a radiator port, a heat exchanger port, and a heater core port, through which the cooling water introduced into the flow control valve is discharged towards a radiator, an oil heat exchanger, and a heater core, respectively.

A system and method of recovering waste heat from an engine when the engine is not operating, which includes connecting a heater core to source of fluid heated due to operation of the engine with fluid lines, the flow of fluid from the source of heated fluid controlled by one or more pump, and operating the pumps when the engine is not operating to circulate the fluid from the source of heated fluid through the heater core. A second aspect includes a portable heat recovery system.

The integrated flow control valve according to the present disclosure is a cam-lift type integrated flow control valve, and an additional valve is integrally formed with at least one of a plurality of valves, this additional valve is configured to be moved upward and downward in response to vertical movement of the corresponding valve to open and close an additional outlet except for a plurality of outlets which are opened and closed by the plurality of valves. In an engine system according to the present disclosure, a flow of coolant flowing into a heater, an oil cooler, a radiator and an exhaust gas heat exchanger in the engine system is integratedly controlled through control of the above described integrated control valve, so that it is possible to effectively control a flow rate of coolant as well as a temperature of coolant.

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.