Entries |
Document | Title | Date |
20090084331 | Thermostat assembly having integral Cylinder head and thermostat housing - A thermostat assembly for a combustion engine having at least one cylinder is disclosed. The assembly has a cylinder head configured to cap off the at least one cylinder, the cylinder head having a recess fluidly connected to a coolant passage of the combustion engine. The assembly also has a thermostat located completely within the recess. | 04-02-2009 |
20090114170 | Method for automatically controlling the charge air temperature of an internal combustion engine - A method for automatically controlling the charge air temperature of an internal combustion engine, in which a coolant flow upstream of a recooler is distributed as a function of the position of a characteristic diagram-type thermostat valve between a recooler coolant flow and a bypass coolant flow. The temperature of the charge air cooler coolant flow is determined downstream of the recooler by the reunited coolant flows, i.e., the recooler coolant flow and the bypass coolant flow. The charge air temperature is determined by the temperature of the charge air cooler coolant flow. A control deviation of a nominal charge air temperature from an actual charge air temperature is computed, a nominal bypass coolant flow is computed as a correcting variable from the control deviation by means of a charge air temperature controller, a control signal (PWM) for actuating the characteristic diagram-type thermostat valve is determined from the nominal bypass coolant flow by a computing unit, and the position of the characteristic diagram-type thermostat valve ( | 05-07-2009 |
20090165735 | Thermostatic Valve - A thermostatic valve in a cooling system in an internal combustion engine, with a common short-circuit element ( | 07-02-2009 |
20090205589 | Thermostatic Valve - A thermostatic valve for a cooling system of an internal combustion engine, having a thermostatic operating element for arrangement in a distributing chamber as the drive element for a main valve element between an engine outlet and a connector to a coolant cooler, and for a bypass valve element designed as a valve slide arranged between the engine outlet and an engine inlet to serve as a pressure control valve. In addition to the valve slide ( | 08-20-2009 |
20100154730 | COOLANT FLOW CONTROL SYSTEM AND METHOD - A coolant flow control system includes a fluid cooling device, a coolant bypass circuit, and a controller. The controller is configured to generate a control signal indicative of a desired flow of coolant through the coolant bypass circuit as a function of the projected rate of change in the cooling device temperature gradient. | 06-24-2010 |
20100175640 | FAILSAFE THERMAL BYPASS VALVE FOR COOLING SYSTEM - A thermal bypass valve for a heat exchanger circuit includes a valve housing forming a valve chamber including a bypass passage and ports for the flow of heat exchange fluid into and out of the valve chamber as well as a bypass port defined by a valve seat. Two axially aligned thermally sensitive actuators are mounted in the chamber, each with an actuator body and its own movable piston extendible from one end of the body. One of these pistons operably engages the actuatory body associated with the other piston. Each actuator body is normally movable in the chamber in response to extension of its piston. One of the actuators extends its piston at a higher temperature than the temperature required for the other actuator to extend its piston. A bypass valve member is mounted on one of the actuators and can be moved by either actuator from an open position to a closed position. | 07-15-2010 |
20100206250 | COOLING SYSTEM FOR A MOTOR VEHICLE - The invention relates to a cooling system ( | 08-19-2010 |
20100212612 | Module For The Cooling Circuit Of An Engine In An Automobile - The invention relates to a module for a cooling circuit of a motor vehicle engine comprising at least one control valve ( | 08-26-2010 |
20100263610 | SWITCHABLE WASTE GAS EXCHANGER - The invention relates to switchable waste gas exchangers which can are arranged and used, in particular, in exhaust gas recirculation lines in internal combustion engines, especially in motor vehicles. | 10-21-2010 |
20100282191 | FAIL SAFE ENGINE COOLANT THERMOSTAT - A fail safe engine coolant thermostat coupled between an engine and a radiator. The thermostat includes a body having a bore extending between an inlet and an outlet. An actuator exposed to coolant fluid and capable of extended and retracted positions based on coolant temperature is diagnosed in the body. A valve plate is pivotally mounted in the body to open and close fluid flow through the fluid outlet of the body. A connecting member is coupled between the actuator and the valve plate to pivot the valve plate between fluid flow open and fluid flow close positions. The pivot connection to the valve plate is connected diamtetrically off center to define a large surface area to one side of the pivot connection and a smaller surface area to the opposite side of the pivot connection such that, and in absence of a fixed connection between the actuator, the connecting member and the valve plate, the valve plate is free to pivot to the fluid flow open position under the influence of coolant fluid flow through the body. | 11-11-2010 |
20100326375 | THERMOSTAT DEVICE - In a thermostat device, a high-temperature cooling water inlet that introduces high-temperature cooling water from a bypass path that has been heated by an engine and has bypassed a radiator is provided at a side position of the valve housing that is substantially orthogonal to a direction in which the temperature sensitive movable portion moves, and a heater path inlet that introduces cooling water from a heater path that has been supplied to a heater core is provided at a lower end portion of the valve housing. The high-temperature cooling water inlet is provided with a plurality of guide portions protruding from the right and left sides of the inlet along the lower face of a cut-off portion toward the temperature sensitive movable portion, and the high-temperature cooling water introduced from the high-temperature cooling water inlet by the guide portions is guided toward the temperature sensitive movable portion. | 12-30-2010 |
20110107984 | ENGINE THAT IS PROVIDED WITH WATER PUMP - An engine that is equipped with a water pump, may include a pump housing that is mounted on one side of a cylinder block with an impeller rotatably mounted on a front side thereof to pump coolant, an inlet fitting that is mounted on the cylinder block at a predetermined distance from the pump housing such that the coolant flows through the inlet fitting, and a connecting body that integrally connects the pump housing with the inlet fitting to form one body. | 05-12-2011 |
20110185991 | MOISTURE PURGING IN AN EGR SYSTEM - A two stage cooled EGR system for a turbocharged internal combustion engine with an intake air charge air cooler. The first EGR cooler is a liquid-to-air cooler and the second, low temperature EGR cooler, is an air-to-air cooler combining with the gas flow downstream of the intake air cooler. The system bypasses EGR flow through the low temperature EGR cooler during certain engine conditions such as low engine coolant temperature and a check valve allows a limited portion of un-cooled, pressurized intake air to be passed through the low temperature EGR cooler for scavenging of any residual moisture and ultimate consumption by the engine. | 08-04-2011 |
20110214629 | Waste Heat Accumulator/Distributor System - A waste heat accumulator/distributor system for use in a vehicle. The system includes an engine coolant loop directing engine coolant through a power plant, a powertrain electronics coolant loop directing electronics coolant through a powertrain electronics system; and a transmission fluid loop directing transmission fluid through a transmission. The system includes a multi-fluid heat exchanger including an engine coolant inlet receiving the engine coolant from the engine coolant loop, an electronics coolant inlet receiving the electronics coolant from the powertrain electronic coolant loop, and a transmission fluid inlet receiving the transmission fluid from the transmission fluid loop; a first valve controllable to cause engine coolant to flow into the engine coolant inlet or to bypass the engine coolant inlet; and a second valve controllable to cause electronics coolant to flow into the electronics coolant inlet or to bypass the electronics coolant inlet. | 09-08-2011 |
20110232590 | COOLING CIRCUIT FOR THE THERMAL REGULATION OF AN ENGINE INDEPENDENT FROM OTHER CONSUMERS - A thermal regulation device for a cooling system of an engine that includes a pump positioned upstream from a cooling housing of the engine and at least one consumer requiring permanent cooling. The device includes a main pipe for circulating coolant through the cooling housing and a secondary pipe bypassing the cooling housing. A two-way valve is positioned on the main pipe at the outlet of the cooling housing of the engine, and the secondary pipe includes a tapping on the main pipe downstream from the pump and upstream from a portion of the main pipe used for cooling the engine so that the flow is maintained at a constant and permanent level for ensuring the cooling of the at least one consumer. | 09-29-2011 |
20110232591 | COOLING SYSTEM FOR A COMBUSTION ENGINE - A coolant circuit includes a first pipe segment, a second pipe segment, and a seal between the pipe segments which are displaceable relative to each other. A resilient locking tang runs parallel to the first pipe segment and has a detent element. An elongated guide portion runs parallel to and is spaced from the locking tang between the pipe segment and the locking tang. Spaced-apart arms run parallel to the second pipe segment beyond the end of this second pipe segment. An axially parallel web is configured between the arms and is fitted at its end facing the second sub-assembly with a detent shoulder which is engaged from behind by the resilient detent element when the pipe segments are plugged into each other. The resilient tang is received at a closed fit between the arms, and the elongated guide portion is guided by the arms. | 09-29-2011 |
20110259287 | Engine cooling device - In an engine, a block-side flow path for circulating cooling water to cool a cylinder block, and a head-side flow path for circulating cooling water to cool a cylinder head are formed. A head-side outlet temperature of cooling water flowing out of the head-side flow path is adjusted by using a water pump that pressure sends the cooling water to both the block-side flow path and the head-side flow path. A block-side outlet temperature of cooling water flowing out of the block-side flow path is adjusted by a first thermostat that changes a flow amount of the cooling water flowing out of the block-side flow path. The cooling water flowing out of the block-side flow path is used as a heat source of first and second heater cores for heating air. | 10-27-2011 |
20110265742 | APPARATUS FOR CONTROLLING WATER PUMP OF HYBRID VEHICLE AND METHOD THEREOF - A water pump control apparatus and method of a hybrid vehicle are used to control a motorized water pump according to the heat emission amount of an engine. The apparatus and method include calculating a temperature difference by detecting a temperature of a coolant exhausted from an engine and a temperature of the coolant flowing to an engine, calculating a heat emission amount of the engine by applying a circulating coolant flux to the temperature difference, and driving a motorized water pump with a driving power in proportion to the heat emission amount of the engine. | 11-03-2011 |
20120111291 | DEVICE FOR REGULATING A COOLANT FLOW AND COOLING SYSTEM | 05-10-2012 |
20120152186 | SYSTEM, METHOD, AND APPARATUS FOR INTEGRATED HYBRID POWER SYSTEM THERMAL MANAGEMENT - A system includes an engine and a first coolant thermally coupled to the engine and circulated by a first pump; a hybrid battery pack thermally coupled to a second coolant circulated by a second pump; and an electric component thermally coupled to the second coolant. The system includes a first heat exchanger that transfers thermal energy between the first coolant and the second coolant. The system includes a second heat exchanger that transfers thermal energy between the second coolant and the auxiliary fluid stream having a temperature below a target operating temperature for the hybrid battery pack. The system includes a first bypass for the first or second coolant at the first heat exchanger, a second bypass for the second coolant or the auxiliary fluid stream at the second heat exchanger, and a component bypass for the second coolant at the hybrid battery pack or the electric component. | 06-21-2012 |
20130019819 | COOLANT CIRCUIT FOR ENGINE WITH BYPASS LINE - A coolant circuit for cooling of an engine in a power system. The coolant circuit includes an inlet line and an outlet line. The coolant circuit further includes a heat exchanger with a plurality of heat exchanging elements. The coolant circuit also includes a bypass line disposed in parallel to the heat exchanger, between the inlet line and the outlet line. A control valve is disposed in the coolant circuit regulating the flow of a coolant, such that the coolant flows through the heat exchanger and the bypass line when the control valve is in a fully open position. | 01-24-2013 |
20130192544 | INLINE THERMOSTAT CONTROL SYSTEMS AND METHODS - A snowmobile coolant system that includes an engine outlet line, an engine inlet line, and an inlet thermostat. The engine outlet line provides coolant flow between an engine and a heat exchanger of the snowmobile. The engine inlet line provides coolant flow between the heat exchanger and the engine. The inlet thermostat is positioned in the engine inlet line and is operable between open and closed states based on a temperature of coolant flowing from the heat exchanger to the inlet thermostat. | 08-01-2013 |
20130213324 | ABNORMALITY DETERMINATION APPARATUS AND ABNORMALITY DETERMINATION METHOD FOR COOLANT TEMPERATURE SENSOR, AND ENGINE COOLING SYSTEM - When a temperature difference between intake air temperature that detected by an intake air temperature sensor and engine coolant temperature thw | 08-22-2013 |
20140196674 | LIQUID-COOLED INTERNAL COMBUSTION ENGINE WITH LIQUID-COOLED CYLINDER HEAD AND WITH LIQUID-COOLED CYLINDER BLOCK - One approach to provide engine cooling for an internal combustion engine includes pumping coolant from a pump output, in parallel, directly to a block and a head upper coolant jacket; flowing coolant from the block directly to a head lower coolant jacket; discharging coolant from the upper and lower jackets only to a control block; and selectively directing cooling from the control block to each of: a cabin heater; radiator bypass line; and the radiator. In this way, an increased demand for pre-warmed coolant can be met, for example in the case of low outside temperatures. | 07-17-2014 |
20140283765 | ENGINE COOLING SYSTEM - Disclosed is an engine cooling system which comprises: a head-side circulation pathway through which coolant from a water pump is circulated via a water jacket of a cylinder head and an EGR cooler; a block-side circulation pathway through which the coolant from the water pump is circulated via a water jacket of a cylinder block; and a switching valve unit operable, during cold operation of the engine, to pass the coolant from the water pump, along the head-side circulation pathway, and, when a temperature of the engine is raised up to a predetermined value, to pass the coolant from the water pump, along not only the head-side circulation pathway but also the block-side circulation pathway. | 09-25-2014 |
20150059665 | TEMPERATURE CONTROL ARRANGEMENT FOR TRANSMISSION OIL IN A MOTOR VEHICLE AND METHOD FOR CONTROLLING THE TEMPERATURE OF TRANSMISSION OIL IN A MOTOR VEHICLE - A temperature control arrangement for transmission oil in a motor vehicle comprises a coolant circuit which fluidly connects an internal combustion engine and a cooler. The coolant circuit includes a thermostat configured to direct at least a fraction of a coolant leaving the internal combustion engine back to the internal combustion engine, either directly or through the cooler. The temperature control arrangement is configured to direct some of the coolant, flowing back through the cooler or directly, first through the heat exchanger and then to the internal combustion engine. The thermostat is fluidly connected to an interior heater, to the cooler, and to a bypass configured to direct a fraction of the coolant directly back to the internal combustion engine, bypassing the cooler. A suitable method for controlling the temperature of transmission oil in a motor vehicle using a temperature control arrangement of this kind is furthermore indicated. | 03-05-2015 |
20160061091 | COOLING WATER CONTROL APPARATUS - A cooling water control apparatus controls a cooling apparatus having first pipe which circulates cooling water through an engine; second pipe which circulates cooling water not through the engine; a switching valve whose state is changed between opened and closed states; and a supplying mechanism which supplies cooling water, and has a determining device which determines whether there is failure of the switching valve based on difference between first temperature of cooling water in first pipe and second temperature of cooling water in second pipe after the command for changing the state of the switching valve from closed state to opened state is outputted; and a controlling device which controls the supplying mechanism to supply cooling water even after the engine stops, when the engine stops while the determining device determines whether there is failure of the switching valve. | 03-03-2016 |
20160084146 | ARRANGEMENT AND A CONTROL METHOD OF AN ENGINE COOLING SYSTEM - An engine cooling system in a vehicle comprises a first coolant circuit and a second coolant circuit connecting an engine to a radiator. A thermostat is arranged in the first coolant circuit and is arranged to be closed during engine warm-up, to prevent flow through the first coolant circuit. The cooling system further comprises a bypass circuit connecting the thermostat to the second coolant circuit and at least one parallel circuit. Each parallel circuit is connected to the second coolant circuit upstream of the bypass circuit, wherein a partial coolant flow is directed from the bypass circuit and upstream through the second coolant circuit into the at least one parallel circuit during engine warm-up. The disclosure further relates to a method for controlling such an engine cooling system. | 03-24-2016 |
20160160739 | COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND COOLING METHOD FOR INTERNAL COMBUSTION ENGINE - A control unit stores a correlation between a temperature difference ΔT between an inlet temperature and an outlet temperature of a heat exchanger for cooling of cooling water, and the amount of thermal deformation occurring in the heat exchanger. At the time when the cooling water is supplied to the heat-exchanging flow path having the heat exchanger, the control unit refers to the temperature difference ΔT and the correlation to obtain the volume of flow of the cooling water supplied to the heat-exchanging flow path so that the amount of thermal deformation is less than or equal to a threshold amount of thermal deformation set in advance. | 06-09-2016 |
20160177808 | ENGINE COOLING SYSTEM AND METHOD FOR OPERATING THE SAME | 06-23-2016 |