Entries |
Document | Title | Date |
20080302316 | Automatic by-pass safety cooling system for fire pump engines - In an internal combustion engine system where the heat in the engine jacket coolant is discharged in a water cooled heat exchanger, an independent and automatic by-pass safety cooling system responsive solely and directly to engine jacket coolant temperatures to ensure that cooling of the engine will continue without reliance upon any other control system or personnel. | 12-11-2008 |
20090000576 | COOLING CONTROL UNIT FOR WATER-COOLED MULTI-CYLINDER INTERNAL COMBUSTION ENGINE HAVING CYLINDER DEACTIVATION MECHANISM - A cooling control unit for a water-cooled multi-cylinder internal combustion engine having a cylinder deactivation mechanism for controlling the flow of coolant to prevent the internal combustion engine from being incompletely warmed up when the internal combustion engine returns to its operating condition with all of the cylinders being activated. A communicating passage communicates with a normally activated cylinder coolant jacket as a coolant passage formed for normally activated cylinders and a deactivation-programmed cylinder water jacket as a coolant passage formed for the deactivation-programmed cylinders to communicate with each other, and through which the coolant flows. A bypass passage diverges from the communicating passage and bypasses the deactivation-programmed cylinder coolant jacket. A diversion control valve is provided in a diversion section where the bypass passage diverges from the communication passage. A control member controls the diversion control valve in accordance with the operating state of the internal combustion engine. | 01-01-2009 |
20090038563 | Cooling Pump for Internal Combustion Engine and Cooling System Using the Cooling Pump - A cooling pump for an internal combustion engine and a cooling system including the pump. The pump is driven by an electrically-operated motor so as to rotate in a positive direction for supplying cooling water in a reservoir tank to the engine and in a reverse direction for returning the cooling water in the engine to the reservoir tank. The cooling system includes a controller that is coupled with the motor of the pump and generates a first control signal for operating the motor to rotate the pump in the reverse direction so as to return the cooling water in the engine to the reservoir tank and generates a second control signal for operating the motor to rotate the pump in the positive direction so as to supply the cooling water in the reservoir tank to the engine, on the basis of an operating condition of the engine. | 02-12-2009 |
20090078219 | SYSTEM AND METHOD FOR PROVIDING AN INTEGRATED COOLING SYSTEM USING AN INDEPENDENT MULTI-CONTROL SYSTEM - A system for cooling an engine on a vehicle without a coolant based intercooler and intermediate duct, the system including an air-to-oil radiator system configured to cool oil that flows through an engine, an air-to-air radiator system configured to cool air that flows through the engine and further configured to operate in conjunction with the air-to-oil radiator system to provide cool air for use with the air-to-oil radiator system, and a slow flow coolant radiator configured to cool a coolant provided to cool the engine and further provided to operate in conjunction with the air-to-oil radiator system. A method for cooling oil in an engine without a coolant based intercooler and intermediate duct is also disclosed. | 03-26-2009 |
20090145375 | Cooling system - A cooling system includes a first cooling system in which coolant is supplied from a radiator to a motor so as to cool the motor, and then the coolant is supplied to banks of an engine through a circulation passage and split flow passages so as to cool the engine; and a second cooling system in which the coolant delivered from the radiator through a branch passage is further cooled by a radiator, and the cooled coolant is supplied to a drive circuit so as to cool the drive circuit. With this configuration, it is possible to efficiently cool the motor, the engine, and the drive circuit whose suitable operating temperatures are different from each other, and to make the configuration of the cooling system simple. | 06-11-2009 |
20090183697 | EXHAUST HEAT RECOVERY SYSTEM - An exhaust heat recovery system ( | 07-23-2009 |
20090194044 | ELECTRIC SUPERCHARGER - An lubricating oil from an oil pump that is driven by rotation of an engine is supplied as a refrigerant to a rotor of an assist motor via a pressure valve. The pressure valve is configured to be closed when the pressure of the lubricating oil is less than a predetermined value, and to open when the pressure of the lubricating oil is greater than or equal to the predetermined value. As a result, when the rotor is in low need for cooling down because the temperature rise of the rotor is small although the rotation speed of the rotor rises, that is, when the engine is operating at a low rotation speed with a high load, the supply of lubricating oil to the rotor is reduced or stopped. | 08-06-2009 |
20090205588 | INTERNAL COMBUSTION ENGINE WITH VARIABLE SPEED COOLANT PUMP - An internal combustion engine has a variable speed coolant pump which is operated at a variable duty-cycle at lower coolant temperatures, while transitioning to a predetermined fixed speed during a final warmup period of operation, and finally to a select-speed operation at one of a selected number of steady state operating speeds selected as a function of at least engine load. | 08-20-2009 |
20100006044 | VARIABLE CAPACITY WATER PUMP VIA ELECTROMAGNETIC CONTROL - A variable flow coolant pump for an engine of a motor vehicle comprises a pump housing defining a fluid chamber. The fluid chamber includes a fluid inlet and a fluid outlet for providing flow of coolant through the housing. An impeller is rotationally supported in the fluid chamber between the inlet and the outlet for pumping coolant through the housing. An engine driven shaft is disposed within the housing for supporting the impeller and rotating the impeller about a longitudinal axis. An electromagnetic field generator selectively produces a magnetic field that moves the impeller axially along the shaft between a first position and a second position which selectively changes the amount of coolant flow through the housing between the fluid inlet and the fluid outlet. | 01-14-2010 |
20100037836 | GAS EXTRACTOR FOR AN ENGINE COOLANT SYSTEM - A system and method for removing gases from an engine coolant system. In one embodiment, the system includes a fluid system that is operable to collects gas, and a gas collection system coupled to the fluid system. The system also includes a venturi pump system coupled to the fluid system and to the collection system, where the venturi pump system is operable to extract the gas from the fluid system via the collection system. | 02-18-2010 |
20100043731 | Medium circulating apparatus for improving startability and warm up ability - A medium circulating apparatus of engine oil, which improves startability and warm up ability of an internal combustion engine, includes a microbubble generator that generates microbubbles and mixes the microbubbles into the circulating engine oil. Further, the medium circulating apparatus includes a medium temperature acquiring unit that acquires a temperature of the engine oil. The microbubbles are generated by the microbubble generator when the temperature of the engine oil is less than or equal to a predetermined value in order to decrease a viscosity, a heat conductivity, and a heat capacity of the engine oil in which the microbubbles are mixed. | 02-25-2010 |
20100071637 | Cooling apparatus - A cooling apparatus that cools with coolant a subject of cooling, which is a heat source. The cooling apparatus includes a cooling circuit, an electric pump, a switching section, and a control section. Through circulation of the coolant, air in the cooing circuit is caused to flow to an air bleeding portion and is discharged from the cooling circuit through the air bleeding portion. The switching section is capable of switching the operation mode of the electric pump between a normal mode and an air bleeding mode for collecting air in the cooling circuit to the air bleeding portion. During the air bleeding mode, the control section is capable of controlling the electric pump to change a coolant displacement from the electric pump according to a change pattern that allows stagnant air in sections of the cooling circuit to flow to the air bleeding portion. | 03-25-2010 |
20100095909 | ENGINE COOLING SYSTEM ONBOARD DIAGNOSTIC STRATEGY - An onboard cooling system diagnostic strategy utilizes at least one temperature sensor fluidly positioned between an electronically controlled engine and a thermostat. The diagnostic algorithm operates by monitoring coolant temperature during engine startup. By comparing the actual coolant temperature during engine start-up to a predicted coolant temperature that should occur if no cooling system error is present, a cooling system fault condition may be identified. If a cooling system fault is detected, the diagnostic logic may activate the engine cooling fan or intrusively open an electrically controlled thermostat while monitoring the coolant temperature response to the intrusive action. If there is a substantial change in coolant temperature responsive to the intrusive action, this phenomenon can be utilized to correctly distinguish between a thermostat failure and a vehicle configuration error corresponding to an overcooled vehicle. The present disclosure also can utilize a similar strategy to diagnose problems associated with other vehicle fluid coolers that exchange heat with ambient air moved by a circulation fan. | 04-22-2010 |
20100101512 | Control Appliance For Using In The Engine Compartment Or In The Transmission Of A Motor Vehicle And Cooling System For Such A Control Appliance - A control device for use in the engine compartment or in the transmission of a motor vehicle. The control device has a housing comprising a housing section for a control unit. The housing also has a line section for the motor or transmission fluid. The line section is thermally coupled to the housing section for the control unit. Such a control device and a cooling arrangement therefore ensure that the electronic components in the control device are cooled such that a pre-determined temperature limit for the electronic components is not exceeded. | 04-29-2010 |
20100107995 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - When knocking occurs, a control apparatus for an internal combustion engine increases the rotational speed of a pump to increase the flow rate of a coolant supplied to an area near a combustion chamber wall surface, and controls an actual mechanical compression ratio to a low mechanical compression ratio lower than a mechanical compression ratio set based on the load of the engine. Thus, the pressure of end gas is decreased, and occurrence of knocking is suppressed. Then, the actual mechanical compression ratio is returned to the mechanical compression ratio at a time point at which the temperature of the combustion chamber wall surface has been sufficiently decreased due to the increase in the rotational speed. Thus, occurrence of knocking is suppressed while avoiding the situation where the actual mechanical compression ratio continues to be controlled to the low mechanical compression ratio that is lower than the mechanical compression ratio. | 05-06-2010 |
20100139582 | Cooling System and Method for a Vehicle Engine - The present invention relates to a cooling system for an internal combustion engine. The cooling system can be used in a hybrid electric vehicle. The system includes electric pumps in fluid communication with the engine and a control unit that governs the pumps. The pumps can be configured to supply fluid to either a cylinder block or cylinder head and backflow fluid through either the cylinder block or cylinder heads. Various arrangements of electrical and mechanical pumps are disclosed to control fluid flow and pressure. | 06-10-2010 |
20100236502 | VEHICLE COOLING CONTROLLER AND COOLING CONTROL METHOD - A drive component for driving an electric water pump for causing engine coolant to flow is mounted in an engine compartment. When the ignition is off and the temperature of a exhaust heat recovery device is above a temperature, an ECU estimates a peak temperature in the engine compartment after the stop of the engine. When the peak temperature is above a temperature, the ECU stops the engine and drives the electric water pump and an electric fan for cooling the drive component for driving the electric water pump. | 09-23-2010 |
20100251979 | Fluid-Regulating Thermostat and Method of Manufacturing Such a Thermostat - This thermostat ( | 10-07-2010 |
20110000446 | ARRANGEMENT AT A SUPERCHARGED INTERNAL COMBUSTION ENGINE - An arrangement for a supercharged combustion engine for preventing ice formation in a cooler. A first cooling system with a circulating coolant. A second cooling system with a circulating coolant which during normal operation of the combustion engine is at a lower temperature than the coolant in the first cooling system. The cooler in which a gaseous medium for the engine and which contains water vapour is intended to be cooled by the coolant in the second cooling system. A heat exchanger. A valve which can be placed in a first position wherein coolant from at least one of the cooling systems is prevented from flowing through the heat exchanger and in a second position wherein coolant from both of the cooling systems flows through the heat exchanger so that the coolant in the second cooling system is warmed by the coolant in the first cooling system. | 01-06-2011 |
20110083621 | Apparatus, System, and Method for Reductant Line Heating Control - In one embodiment, an apparatus is disclosed for heating a reductant delivery line using coolant from an internal combustion engine where the reductant delivery line receives reductant from a reductant tank and a portion of a coolant line is positioned within the reductant tank. The apparatus includes a coolant temperature module that is configured to determine a reductant tank outlet coolant temperature target. Additionally, the apparatus includes a coolant flow rate module that is configured to generate a coolant valve flow rate command and transmit the command to a coolant valve. The coolant valve is controllable to regulate the flow rate of coolant through the coolant line. The coolant valve flow rate command is based on the reductant tank outlet coolant temperature target, a reductant tank inlet coolant temperature, and a reductant tank reductant temperature. | 04-14-2011 |
20110126784 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A vehicle control system | 06-02-2011 |
20110162596 | ARRANGEMENT IN A LOW-TEMPERATURE COOLING SYSTEM FOR A SUPERCHARGED COMBUSTION ENGINE - An arrangement for controlling cooling of a gaseous medium for a supercharged combustion engine ( | 07-07-2011 |
20110214627 | CONTROLLER FOR ENGINE COOLING SYSTEM - An internal combustion engine has a cylinder-head-passage through which an engine coolant flows toward a water jacket when a water pump is operated. The water pump is an electric water pump utilizing the electric power charged in the battery. A radiator is provided in the cylinder-head-passage. Even after the engine is shut off, the water pump is kept driven. | 09-08-2011 |
20110253075 | COOLING APPARATUS FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is to ensure appropriate cooling amounts for two exhaust ports, respectively, in an internal combustion engine in which an exhaust port that communicates with an inlet of a turbine of a turbocharger and an exhaust port that does not communicate with the inlet of the turbine are formed in a cylinder head. A cooling apparatus for an internal combustion engine of the present invention has a first exhaust port and a second exhaust port formed in a cylinder head of the internal combustion engine. The first exhaust port communicates with an inlet of a turbine of the turbocharger. The second exhaust port does not communicate with the inlet of the turbine. Each cylinder of the internal combustion engine includes a first exhaust valve that communicates with the first exhaust port and a second exhaust valve that communicates with the second exhaust port. A first cooling water passage through which cooling water that cools the first exhaust port passes and a second cooling water passage through which cooling water that cools the second exhaust port passes are formed in the cylinder head. | 10-20-2011 |
20120037100 | METHODS AND SYSTEMS FOR ADAPTIVELY COOLING COMBUSTION CHAMBERS IN ENGINES - The present disclosure is directed to various embodiments of systems and methods for cooling a combustion chamber of an engine. One method includes introducing fuel into the combustion chamber of an engine having an energy transfer device that moves through an intake stroke, a compression stroke, a power stroke, and an exhaust stroke. The method further includes monitoring a temperature of the combustion chamber. When the temperature reaches a predetermined value, the method also includes introducing coolant into the combustion chamber only during at least one of the power stroke and the exhaust stroke of the energy transfer device. | 02-16-2012 |
20120103283 | COOLING SYSTEM - A cooling system for an engine is provided. In one embodiment, an internal combustion engine comprises a cabin heat exchanger circuit including a connecting line opening on an inlet side into a cylinder block coolant jacket, a main coolant pump arranged in the cabin heat exchanger circuit, an auxiliary coolant pump arranged in the connecting line, and a check valve. In this way, additional cooling and/or heating may be provided to the engine and associated components by the auxiliary coolant pump. | 05-03-2012 |
20120118247 | COOLING SYSTEM FOR A COMBUSTION ENGINE, COMBUSTION ENGINE AND MOTOR VEHICLE WITH A COMBUSTION ENGINE - A cooling system is provided for a combustion engine having at least one pressure sensor and a diaphragm. The diaphragm is impermeable to a coolant of the cooling system and in contact with the coolant on a first side. A sensor device of the at least one pressure sensor is arranged separated from the coolant on a second side of the diaphragm located opposite the first side and configured to determine a pressure of the coolant. | 05-17-2012 |
20120132154 | CONTROL DEVICE FOR VARIABLE WATER PUMP - The ECU includes: a stop control portion controlling an electric water pump to stop, when an engine provided with the electric water pump pressure-feeding a coolant is warmed up; a first drive control portion controlling the electric water pump to drive for a predetermined period at least before the stop control portion performs a control, when a coolant temperature thw in starting the engine is equal to or higher than a predetermined value α. The electric water pump corresponds to a variable water pump capable of changing the flow rate of the coolant. | 05-31-2012 |
20120152185 | Two-cycle, opposed-piston internal combustion engine - In a two-cycle, opposed-piston internal combustion engine, opposed pistons disposed in a cylinder are coupled to a pair of side-mounted crankshafts by connecting rods that are subject to substantially tensile forces acting between the pistons and the crankshafts. This geometry reduces or eliminates side forces between the pistons and the bore of the cylinder. The cylinder and the pistons are independently cooled to reduce cylindrical deformation caused by thermal expansion during engine operation. | 06-21-2012 |
20120174880 | COOLING A ROTARY ENGINE - The present invention relates to a system for cooling a rotary engine, the system comprising a drive shaft having a bore hole and at least one of a coolant transmission hole in fluid communication with the bore hole. At least one of a coolant distribution channel is in fluid communication with the coolant transmission hole. A coolant fluid channel receives a coolant liquid from the coolant distribution channel, wherein the coolant liquid is circulated between the bore hole and the outer coolant fluid channel to cool the rotary engine. Other exemplary embodiments include a centripetal force pump formed by at least the rotation of the drive shaft, which circulates the coolant liquid between the drive shaft bore hole and the outer coolant fluid channel to cool the rotary engine, and adjusting the coolant liquid flow rate based, in part, on the RPM of the drive shaft. | 07-12-2012 |
20120192815 | Actuating Device Of A Recirculating Pump For A Cooling Circuit Of An Internal Combustion Engine - Actuating device for a recirculation pump of a cooling circuit of an internal combustion engine comprising a pulley suitable for being rotationally driven by the engine, a driven shaft for driving the pump and an electromagnetically controlled coupling interposed between the pulley and the driven shaft, in which the electromagnetic coupling comprises an electromagnet, coupling mechanism controlled by the electromagnet and mobile between an engagement position in which the pulley is connected to the driven shaft and a disengagement position, and an elastic member for maintaining an engagement member in the engaged position when the electromagnet is not energized. | 08-02-2012 |
20120216761 | COOLING DEVICE FOR ENGINE - A cooling apparatus includes an engine equipped with a cylinder block and a cylinder head, a flow rate control valve capable of suppressing a cooling capacity of the cylinder head without suppressing a cooling capacity of the cylinder block, and control means that performs a control to suppress the cooling capacity of the cylinder head by controlling the flow rate control valve. The flow rate control valve is cooling capacity control means that controls the cooling capacity of the cylinder head by controlling the flow rate of cooling water that flows through a head side W/J formed in the cylinder head. | 08-30-2012 |
20120234267 | COOLING DEVICE FOR ENGINE - A cooling device for engine includes: an engine having a cylinder block, a cylinder head and a gasket, the gasket being provided between the cylinder block and the cylinder head and having a high thermal conductivity member allowing heat transfer between an upper part of a cylinder and the cylinder head with a heat transfer rate higher than the other part, a partial W/J being provided around the high thermal conductivity member; and an ECU performing a control for changing flow condition of cooling medium flowing in the partial W/J, according to combustion engine operation condition. | 09-20-2012 |
20120240877 | ENGINE COOLING DEVICE - The cooling device is provided with an engine including a cylinder block, a cylinder head, and a W/J which is a single system as a whole and which causes coolant to flow from the cylinder block to the cylinder head. The W/J branches into first and second inner paths within the cylinder block, and joints together within the cylinder head. The first inner path is provided with an opening and closing valve for permitting and prohibiting the flow of the coolant based on the pressure of the coolant. | 09-27-2012 |
20120266827 | ENGINE COOLING DEVICE - A cooling apparatus | 10-25-2012 |
20120291722 | VARIABLE VALVE TIMING CONTROLLER - An engine is provided with a variable valve timing device which transmits a rotational force generated by a motor via a motor drive circuit to a cam shaft so as to change a rotational phase of the cam shaft relative to a crank shaft. An ECU cools a motor and a motor drive circuit when the change of the rotational phase stops during the changing of the rotational phase of the cam shaft to a target value is detected. In addition, the lock state is eliminated by driving the motor by the motor drive circuit after cooling the motor device. | 11-22-2012 |
20120318213 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - In a control device | 12-20-2012 |
20130032101 | DEVICE FOR CONTROLLING INTERNAL COMBUSTION ENGINE - The disclosed internal combustion engine has an electric water pump and a water temperature sensor that detects coolant water temperature. An electronic control device stops the driving of the water pump when the coolant water temperature is lower than a baseline temperature. Meanwhile, the electronic control device drives the water pump in accordance with the coolant water temperature when the coolant water temperature is higher than the baseline temperature. When the driving of the water pump is stopped, the internal combustion engine forbids at least one engine control until the water pump is driven. | 02-07-2013 |
20130139767 | COOLING SYSTEM FOR PISTON OF INTERNAL COMBUSTION ENGINE - A cooling system for a piston of an internal combustion engine includes a cooling channel ( | 06-06-2013 |
20130139768 | COOLING DEVICE FOR ENGINE - Disclosed is an oil jet device for cooling a piston, including: an oil cooler | 06-06-2013 |
20130186351 | COOLANT CIRCUIT FOR INTERNAL COMBUSTION ENGINE WITH INLET-SIDE FLOW CONTROL - An internal combustion engine cylinder head has a coolant jacket with a first supply opening and a first discharge opening. A cylinder block coolant jacket has a second supply opening and a second discharge opening. A coolant circuit connects the discharge openings to the supply openings via a recirculation line and a heat exchanger. A control unit has an inlet connected to a pump outlet, a first outlet connected to the first supply opening, a second outlet connected to the second supply opening, and a single setting element. The setting element has a first working position that opens up the first outlet and blocks the second outlet such that the coolant circuit is activated through the cylinder head and is deactivated through the cylinder block. The setting element has a second working position that opens up both the first outlet and the second outlet. | 07-25-2013 |
20130206083 | ENGINE WITH ELECTRONICALLY CONTROLLED PISTON COOLING JETS AND METHOD FOR CONTROLLING THE SAME - An engine oil system for an internal combustion engine comprises an electronic control module, an engine oil sump, an engine oil pump, an engine oil gallery, an engine oil pressure sensor, a solenoid control valve, and at least one oil receiving component. The engine oil pump is in fluid communication with the engine oil sump. The engine oil gallery is in fluid communication with at least one engine bearing and a turbocharger. The engine oil pressure sensor and at least one oil receiving component are in fluid communication with the oil gallery. The oil pressure sensor generates an output signal that is transmitted to the electronic control module. The solenoid control valve is in fluid communication with the engine oil gallery and electronic communication with the electronic control module. The solenoid control valve is moveable between at least an open position and a closed position. | 08-15-2013 |
20130239910 | ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD - A control device is provided for an engine equipped with an electric oil pump for circulating coolant, and having a flow rate of the coolant restricted, when a temperature of the coolant is lower than a threshold value, as compared to a case where the temperature of the coolant is equal to or higher than the threshold value, and the engine control device includes a coolant temperature sensor detecting a temperature of the coolant, and a control unit stopping the engine in accordance with the temperature to be detected by the coolant temperature sensor after the pump is driven so as to increase the flow rate of the coolant, in a case where the flow rate of the coolant is restricted. | 09-19-2013 |
20130255600 | VEHICLE AND METHOD FOR CONTROLLING THE SAME - A vehicle includes an engine capable of being intermittently stopped after it is started; a water pump for circulating cooling water, and an ECU. When the cooling water has low temperature the ECU controls the water pump to limit the flow rate of the cooling water to be smaller than when the cooling water has high temperature. When the cooling water has a limited flow rate the ECU sets lower a threshold value of the cooling water's temperature for permitting intermittently stopping the engine than when the cooling water does not have a limited flow rate. When the cooling water has a limited flow rate the engine can nonetheless be intermittently stopped at an appropriate time. | 10-03-2013 |
20130263798 | METHODS AND SYSTEMS FOR ADAPTIVELY COOLING COMBUSTION CHAMBERS IN ENGINES - The present disclosure is directed to various embodiments of systems and methods for cooling a combustion chamber of an engine. One method includes introducing fuel into the combustion chamber of an engine having an energy transfer device that moves through an intake stroke, a compression stroke, a power stroke, and an exhaust stroke. The method further includes monitoring a temperature of the combustion chamber. When the temperature reaches a predetermined value, the method also includes introducing coolant into the combustion chamber only during at least one of the power stroke and the exhaust stroke of the energy transfer device. | 10-10-2013 |
20130263799 | GLOW PLUG AND ELECTRIC THERMOSTAT WITH THE SAME - A glow plug may include: i) a hollow plug housing that is mounted on a plug mount in an insulation status; ii) a center shaft that is fixed to one end of the plug housing in an insulation status and receives power from the outside; iii) a heating unit that is connected to the center shaft and the other end of the plug housing, and generates heat using a potential difference; and iv) a connecting unit that insulates the plug mount and the center shaft, is coupled to the plug mount, and electrically connects with center shaft with the plug housing. | 10-10-2013 |
20130284127 | ENGINE COOLING DEVICE - A cooling device circulates cooling water through an engine main body and a radiator using an electric pump and supplies cool air to the radiator using an electric fan, thereby cooling the engine main body. During a dead soak period after an engine is shut off, a control unit controls the operation states of the electric pump and the electric fan on the basis of cooling water temperature detected by a water temperature sensor, outside air temperature detected by an outside air temperature sensor, and battery voltage. Specifically, when the engine is shut off, if it is determined on the basis of the cooling water temperature and the outside air temperature that the engine is in a high temperature state, the control unit controls the electric pump and the electric fan. | 10-31-2013 |
20130333641 | WARMUP ACCELERATION DEVICE FOR INTERNAL COMBUSTION ENGINE - When the passing of coolant in an internal combustion engine is restricted to accelerate the warm-up of the internal combustion engine and the coolant in this engine is undergoing nucleate boiling, the restriction of the passing of the coolant in the internal engine is maintained. Specifically, the restriction of the passing of the coolant in the internal combustion engine is maintained during nucleate boiling from the beginning of nucleate boiling of the coolant in the internal combustion engine until the maintenance period has elapsed. Thus, the warm-up of the internal combustion engine is effectively accelerated by restricting the passing of the coolant in the engine. Furthermore, the restriction of the passing of the coolant in the internal combustion engine is canceled when the maintenance period has elapsed. Thus, low-temperature coolant flows in the internal combustion engine and the internal combustion engine is cooled by this coolant, so nucleate boiling of the coolant in the engine is suppressed. | 12-19-2013 |
20140041602 | ENGINE COOLING FAN - An engine cooling fan ( | 02-13-2014 |
20140083377 | SYSTEM AND METHOD FOR COOLING ENGINE OF VEHICLE - A method of cooling an engine of a vehicle includes measuring a temperature of a cylinder head of the engine, determining whether the measured temperature of the cylinder head may be equal to or lower than a predetermined temperature, when the temperature of the cylinder head may be equal to or lower than the predetermined temperature, moving coolant of the cylinder head and a cylinder block to a separate coolant tank, determining whether the measured temperature of the cylinder head may be equal to or higher than a specific temperature, and when the measured temperature of the cylinder head may be equal to or higher than the specific temperature, supplying coolant stored in the coolant tank to the cylinder head or the cylinder block. | 03-27-2014 |
20140216367 | AIR COOLER AND METHOD FOR OPERATION OF AN AIR COOLER - An air cooler line is provided. The air cooler lines includes a first air cooler having a plurality of air flow conduits, each of the air flow conduits including an inlet, and a first air flow deflector extending across peripheral portions of the inlets and fixedly coupled to the air flow conduits and a second air cooler having a plurality of air flow conduits, each of the air flow conduits including an inlet, and a second air flow deflector extending across peripheral portions of the inlets and fixedly coupled to the air flow conduits, the second air flow deflector differing in at least one of size and geometry than the first air flow deflector. | 08-07-2014 |
20140283764 | INFERRED ENGINE LOCAL TEMPERATURE ESTIMATOR - A system and methods for inferring a local engine temperature based on various engine conditions input to a dynamic model are disclosed. In the example system provided, an inferential temperature sensor uses a trainable model to estimate a local metal temperature in an exhaust valve bridge of a cylinder head which thereby allows closed loop control of a coolant flow device independent from engine speed, engine state, coolant flow state or system temperature. In response to estimated local metal temperatures, the methods described further allow thermal management of the engine system to be optimized. | 09-25-2014 |
20140290597 | METHOD FOR OPERATING A DIRECT FUEL INJECTOR - A method, comprising: operating an engine cylinder with fuel from a first injector and not a second injector and activating the second injector in response to a rail pressure increase of a fuel rail, the fuel rail coupled to the second injector. In this way, degradation of the second injector may be reduced by activating the second injector and allowing fuel flow through the second injector to reduce the pressure and temperature of the fuel rail. | 10-02-2014 |
20140290598 | CONTROL APPARATUS OF ELECTRIC WATER PUMP - A control apparatus of an electric water pump of the present invention is configured by an engine control unit on a side of an engine and an electric water pump in a cooling water circulating circuit of the engine. The engine control unit transmits signals of a measured water temperature and a target water temperature of the engine, and the electric water pump includes a drive control unit for executing control of adjusting a flow rate of the water pump on the basis of the signals of the measured water temperature and the target water temperature. | 10-02-2014 |
20150007783 | COOLING SYSTEM AND METHOD FOR A VEHICLE ENGINE - An exemplary cooling system includes, among other things, a first pump to supply coolant to a cylinder head of an engine, a second pump to supply coolant to a cylinder block of the engine, a control unit that governs the first pump and second pump, and at least two fluid return channels to recirculate coolant to the pumps. The first and second pumps are arranged to backflow coolant through the engine. | 01-08-2015 |
20150027387 | CONTROL DEVICE FOR COOLING SYSTEM - The influenced of condensed water on an EGR device is alleviated. | 01-29-2015 |
20150034026 | Internal Combustion Engine of an Automotive Vehicle with a Heat Storage Device that Provides Reusable Heat - A heat storage device keeps engine coolant hot during operating pauses of the engine allowing quick heating during a cold start of the engine. The capacity of the heat storage device for coolant is twice as large as the capacity for coolant of the coolant circulation system and the engine. An inflow line, an outflow line and a ventilation line pass through the bottom of the heat storage device and are heat insulated on the inside of the heat storage device. Hot coolant from the heat storage device is transferred in two portions into the cold engine. The second portion is transferred when the rising temperature of the metal motor mass has come close to the falling temperature of the first portion of coolant that was circulating in the engine. The heat storage device includes outer and inner containers with a high vacuum in the insulating space between the containers. | 02-05-2015 |
20150354475 | INTERNAL COMBUSTION ENGINE - An internal combustion engine includes a control unit determining the occurrence or non-occurrence of dew condensation in a tip portion of a nozzle based on a nozzle heat receiving amount of an injector and a nozzle tip temperature of the injector at a point in time when ignition is turned OFF and performing nozzle corrosion prevention control when the dew condensation is determined to occur in the nozzle tip portion. The control unit calculates a nozzle tip temperature reduction rate based on the nozzle heat receiving amount, calculates a dew point arrival time based on the reduction rate, and determines the occurrence or non-occurrence of the dew condensation in the nozzle tip portion based on the dew point arrival time. | 12-10-2015 |
20160017789 | WATER-TEMPERATURE-SENSOR BACKUP SYSTEM - Water-temperature sensors for detection of temperature of cooling water | 01-21-2016 |
20160047293 | COOLANT CONTROL SYSTEMS AND METHODS TO PREVENT COOLANT BOILING - A coolant control system of a vehicle includes first and second target flowrate modules, a target speed module, and a speed control module. The first target flowrate module determines a first target flowrate of coolant through an engine. The second target flowrate module, when a change in heat input to the engine is greater than a predetermined value, sets a second target flowrate to greater than the first target flowrate. The target speed module determines a target speed of an engine coolant pump based on the second target flowrate. The speed control module controls a speed of the engine coolant pump based on the target speed. | 02-18-2016 |
20160061093 | METHOD AND SYSTEM FOR CONTROL OF A COOLING SYSTEM - A method and a system for controlling a vehicle cooling system includes: a velocity prediction unit makes a prediction of at least one future velocity profile v | 03-03-2016 |
20160076434 | Intelligent Sea Water Cooling System - An intelligent sea water cooling system including a first fluid cooling loop coupled to a heat exchanger, a second fluid cooling loop coupled to the heat exchanger and including a fluid pump for circulating fluid through the second fluid cooling loop, and a controller operatively connected to the fluid pump. The controller may be configured to monitor an actual temperature in the first fluid cooling loop and to adjust a speed of the fluid pump based on the monitored temperature in order to achieve a desired temperature in the first fluid cooling loop. | 03-17-2016 |
20160131017 | COOLING CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - A cooling control system for an internal combustion engine, which is capable of circulating engine coolant while suppressing power consumption by an engine coolant pump as much as possible. The cooling control system is provided for cooling intake gases increased in temperature by being pressurized by a supercharger. The engine coolant pump of the electrically-driven type delivers engine coolant to thereby cause the same to circulate. An ECU controls, when a difference between the temperature of the engine coolant and a first target temperature is not larger than a first predetermined value, the amount of the engine coolant to be delivered to a predetermined minimum flow rate, and controls, when the difference is larger than the first predetermined value, the amount of the engine coolant to be delivered such that it becomes larger as the difference is larger. | 05-12-2016 |
20160169161 | CONTROL DEVICE FOR INTERNAL CDMBUSTION ENGINE | 06-16-2016 |
20160186647 | METHOD AND SYSTEM FOR ENGINE COOLING SYSTEM CONTROL - Methods and systems are providing for improving engine coolant level estimation to reduce engine overheating. The level of fluid in a coolant overflow reservoir is inferred based on the fluid level in a hollow vertical standpipe fluidically coupled to the reservoir at top and bottom locations. An ultrasonic sensor positioned in a recess at the bottom of the vertical standpipe transmits signals intermittently, receives their echoes upon reflection from the coolant surface, and estimates the fluid level in the standpipe based on echo times. | 06-30-2016 |
20160201548 | SYSTEM AND METHOD OF THERMAL MANAGEMENT FOR AN ENGINE | 07-14-2016 |
20160252000 | DUAL MODE COOLING PUMP WITH OVER-RUNNING CLUTCH | 09-01-2016 |