Abstract: Methods and systems for cooling an electric energy storage device are described. In one example, a temperature set point of a cooling system is reduced before a vehicle reaches a location along a travel route where load on the electric energy storage device is expected to be greater than a threshold load. By lowering the temperature set point, it may be possible to maintain a temperature of the electric energy storage device below a threshold temperature.

Abstract: A system is provided. The system includes a reciprocating engine configured to consume oil at or less than 0.25 g/kw-hr and to use makeup oil. The reciprocating engine includes an engine oil sump. The system is configured to maintain an oil volume in the reciprocating engine during operation so that a residence time of oil in the reciprocating engine is at or less than 1000 hours.

Abstract: A cylinder block includes a water jacket surrounding a cylinder of an internal combustion engine and a water jacket spacer disposed inside the water jacket. In the cylinder block, a direction toward a center of the cylinder in a radial direction of the cylinder is defined as an inner side. A direction away from the center in the radial direction of the cylinder is defined as an outer side. The water jacket spacer includes a spacer plate and a conversion portion protruding from the spacer plate in the radial direction. The conversion portion has an action surface on which a pressure of coolant flowing through the water jacket acts. The conversion portion converts a force applied to the action surface by the pressure of the coolant into a force pushing the spacer plate toward the inner side.

Abstract: The present invention relates to a thermal management system including: a refrigerant circulation line including a refrigerant circulator, a first heat exchanger, a first expander and a third heat exchanger, wherein refrigerant circulates in the refrigerant circulation line; a heating line for heating the interior by circulating cooling water exchanging heat with the refrigerant through the first heat exchanger; and a cooling line for cooling heating sources by exchanging heat between the cooling water and air or exchanging heat between the cooling water and the refrigerant.

Abstract: Provided is a reservoir tank which includes: a tank body that stores cooling fluid; an inflow pipe configured to feed the cooling fluid into the tank body; a discharge pipe configured to discharge the cooling fluid from the tank body; a columnar member erected inside the tank body; and a guide member provided inside the tank body, in which the inflow pipe is connected to the tank body at a position vertically below a liquid level of the cooling fluid stored inside the tank body, the guide member is configured to guide a flow of the cooling fluid flowing from the inflow pipe into the tank body, the flow being guided into a substantially horizontal direction toward the columnar member, the columnar member extends in a substantially vertical direction when viewed along the flow of the cooling fluid toward the columnar member, and a part of the columnar member is disposed on an extension line of the flow of the cooling fluid toward the columnar member.

Abstract: The invention relates to an internal combustion engine comprising a combustion engine (10) and a cooling system, which has a coolant pump (40), a main cooler (38), a heating heat exchanger (36), coolant channels (28, 30) in the combustion engine (10), and a control device (20) having an actuator (26) for the closed-loop distribution of a coolant according to at least one local coolant temperature, characterised in that the control device (20) can be connected to a coolant compensation container (106) via a connection in line and, with an actuation of the actuator (26) in one direction, the control device (20): permits a coolant flow through the coolant channels (28, 30) of the combustion engine (10), and through the heating heat exchanger (36), and prevents same through the main cooler (38), and closes the connection line in a first primary position (80); releases the connection line in a second primary position (96); and also permits a coolant flow though the main cooler (38) in a third primary position (126

Abstract: A hybrid-driven dual pump for conveying a coolant for a combustion engine, is proposed. The dual pump comprises: a first pump assembly with a first pump impeller, a first spiral housing and a first pump shaft driven via a mechanical drive connection by a combustion engine; a second pump assembly with a second pump impeller, a second spiral housing, a second pump shaft and an electric drive; a joint pump housing enclosing the first pump assembly and the second pump assembly with a joint pump inlet and a joint pump outlet; and a flap arranged freely pivotably between an outlet of the first spiral housing and an outlet of the second spiral housing such that a direct flow connection between the first spiral housing and the second spiral housing is blocked.

Abstract: A cooling system includes an electric pump, a cooling target temperature sensor, a coolant temperature sensor, and an electronic control unit. The electric pump pumps a coolant to a circulation channel connected to an inlet and an outlet of a cooling channel in which heat is exchanged with a cooling target. The cooling target temperature sensor detects a cooling target temperature. The coolant temperature sensor is arranged upstream of the inlet in the circulation channel, and detects a coolant temperature. The electronic control unit controls driving of the electric pump so that a discharge flow rate of the electric pump matches a target flow rate, and sets the target flow rate using an equation based on a reference value obtained by dividing a difference between the cooling target temperature and a target cooling temperature of the cooling target by a difference between the cooling target temperature and the coolant temperature.

Abstract: Provided is a water pump including a supporting structure for an impeller having a lower manufacturing cost and having reduced noise and vibration characteristics compared to a conventional water pump including a supporting structure for an impeller. The water pump including a supporting structure for an impeller includes: a shaft; an impeller having the shaft inserted into a center of the impeller and rotating together with the shaft to discharge an introduced fluid; a core formed on an outer circumference of the shaft; a magnetic material formed on an outer circumference of the core and forming a magnetic field rotating the shaft connected to the core and the impeller; a pump housing the shaft, impeller and core; and a supporting member installed between an end of the shaft and the pump housing to support the shaft.

Abstract: An engine cooling structure includes a cylinder block including a block inner peripheral wall and a block outer peripheral wall that define a water jacket, and a spacer housed in the water jacket. The block outer peripheral wall includes a coolant inlet for introducing a coolant into the water jacket at one end in a cylinder row direction. The spacer includes a peripheral wall surrounding the block inner peripheral wall, and a dividing wall and a distribution wall provided on the peripheral wall. The dividing wall is provided along a circumferential direction of the peripheral wall and protrudes outward from the peripheral wall between a lower end and an upper end of the coolant inlet. The distribution wall includes an upper distribution wall extending upward from the dividing wall and a lower distribution wall extending downward from the dividing wall.

Abstract: A charging device for an internal combustion engine with a shaft, a compressor wheel arranged on the shaft, a stator housing and a stator. The stator is arranged within the stator housing. A rotor is arranged on the shaft and a cooling channel for accommodating a coolant extends axially between the stator housing and the stator. A split tube is provided between the rotor and stator. A first seal is provided in the axial direction between the stator housing and a first end of the stator and a second seal is provided in the axial direction between the stator housing and a first end of the split tube. Alternatively to the split tube, a separation tube is arranged between the stator and the stator housing so that the cooling channel is formed in the radial direction between the separation tube and the stator housing.

Abstract: An engine cooling structure includes a cylinder block including a block inner peripheral wall that defines a water jacket and a block outer peripheral wall, a spacer housed in the water jacket, and a cooler provided outside the engine body. The spacer includes: a peripheral wall surrounding the block inner peripheral wall; and a dividing wall protruding from the peripheral wall to divide the water jacket into an upper passage and lower passages below the upper passage. A coolant introduced from a coolant inlet into the upper passage passes through an inter-bore part of the block inner peripheral wall. The coolant in the lower passages is introduced into the cooler through a coolant exit.

Abstract: An electric fluid pump for a motor vehicle includes a housing composite, a pump unit, a drive motor, a rotor shaft, and a motor controller which controls the drive motor. The housing composite defines a pump space, which includes a pump rotor space wherein a pump rotor of the pump unit is arranged, and a motor space wherein the drive motor is arranged, which together comprise a common end wall. The drive motor includes a motor stator, a motor coil arrangement, and a motor rotor. The rotor shaft co-rotatably connected to the motor rotor, and is arranged through the common end wall to rotate jointly with the pump rotor. The common end wall is a mounting wall part on which at least the motor controller is arranged. The motor coil arrangement is arranged on the motor stator and is provided on a side which is opposite to the motor controller.

Abstract: Methods and systems relating to an internal combustion engine support bracket are disclosed. The engine bracket includes a housing defining a fluid passage configured to be in fluid receiving communication with an upstream aperture of the housing and in fluid providing communication with a downstream aperture of the housing. The engine bracket also includes at least one mounting platform with fasteners configured to removably engage an accessory device of an internal combustion engine.

Abstract: There is provided a vertical multicylinder straight engine in which the temperature distribution of a plurality of cylinder barrels is made close to an even state. A cylinder jacket includes: a jacket inlet; a separated channel; a plurality of separated outlets; and heat dissipater channels for dissipating heat of the respective cylinder barrels to engine cooling water introduced through the separated outlets. The plurality of separated outlets include: a front-side separated outlet to a front-end barrel; a rear-side separated outlet to a rear-end barrel; and middle separated outlets to middle barrels between the front-end barrel and the rear-end barrel, and the jacket inlet is disposed so as to be contained within an entire middle barrel side area that is lateral to the middle barrels and has a front-rear length as long as a length from a front-most end to a rear-most end of the middle barrels.

Abstract: Systems and methods for providing an improved strategy for controlling a variable speed water pump in a vehicle. In some embodiments, more than one water pump speed function is calculated based on values obtained from vehicle sensors, and a controller chooses among the water pump speed function results to set a water pump speed. In some embodiments, the water pump speed is increased when driveline torque is greater than a threshold amount for an amount of time that varies based on the driveline torque. In some embodiments, ambient temperature is considered while determining whether the water pump should provide full coolant flow to an auxiliary coolant loop of a trailer.

Abstract: The present disclosure provides an engine cooling system for controlling the temperature of an engine of a motor vehicle. The system includes an engine cooling circuit for circulating a coolant to transfer heat from the engine to an airflow. An electric water pump is configured to circulate the coolant through the circuit at a maximum electric pump flow rate, and a mechanical water pump is configured to circulate the coolant through the circuit at a maximum mechanical pump flow rate that is higher than the maximum electric pump flow rate. The circuit further includes a selector valve configured to fluidly connect one of the electric water pump and the mechanical water pump to the engine. An engine control module generates a valve signal for actuating the selector valve to fluidly connect one of the electric water pump and the mechanical water pump to the engine.

Abstract: There is provided a water jacket spacer set in a groove-like coolant passage of a cylinder block of an internal combustion engine including cylinder bores and set in an entire circumferential direction or a part in a circumferential direction of the groove-like coolant passage when viewed in the circumferential direction, wherein a coolant passage opening through which coolant flowing on the rear surface side of the water jacket spacer passes to flow to an inner side of the water jacket spacer is formed on at least one place of upper portions of inter-bore portions, a guide wall for guiding the coolant is formed in a vicinity of the coolant passage opening, such that the coolant flows into the coolant passage opening; and an inclined wall is formed on the rear surface side of bore portions of a position where the coolant is supplied into the groove-like coolant passage, the inclined wall extending with an upward inclination to create a flow of the coolant toward the coolant passage opening.

Abstract: A closure element is provided for closing a recess in a heat-transfer-fluid pump that is contained in an engine of a vehicle. In particular, in a cylinder block of the engine, the closure element including an element for guiding the flow of heat transfer fluid to an inlet of the pump.

Abstract: A method of providing coolant to an electric battery for powering a drive train of an electric vehicle is provided. The method includes providing coolant from a coolant source off-board the electric vehicle at a first rate to cool the electric battery during recharging of the electric battery; and circulating coolant through a coolant loop on-board the electric vehicle at a second rate less than the first rate to cool the electric battery after the recharging of the electric battery.

Abstract: A liquid pump for conveying a liquid may include a housing, in which a pump impeller is arranged for conveying the liquid, and a cover for covering the housing. The cover may include a main connector for supplying a main flow of the liquid to the pump impeller and an auxiliary connector for supplying an auxiliary flow of the liquid to the pump impeller. The housing may have an inlet opening for the liquid and an annular collar protruding from an edge of the inlet opening. The cover may lie axially against the annular collar. The annular collar and the cover may define an annular wall surrounding a flow path of the main flow of the liquid. The annular wall may have at least one radial opening connecting the flow path with an inflow space surrounding the annular wall. The auxiliary connector may be fluidically connected with the inflow space.

Abstract: A method for controlling a water pump for a vehicle includes: determining whether an engine is on; measuring a coolant temperature of the engine and an RPM of the engine when the engine is determined to be operated; determining whether the measured coolant temperature is equal to or greater than a predetermined coolant temperature; determining an RPM of a water pump, which adjusts a coolant flow rate, from the measured coolant temperature and the measured RPM of the engine, when the measured coolant temperature is determined to be equal to or greater than the predetermined coolant temperature; and controlling the water pump such that the water pump is operated according to the determined RPM of the water pump.

Abstract: An external heater operation determination system includes, in a vehicle: a first device to be heated by an attached external heater; a second device, separate from the first device, to be cooled by a refrigerant; a circulation device configured to circulate the refrigerant through a circuit; and a temperature detection device that is configured to detect a temperature of the refrigerant and disposed such that if the refrigerant is not circulating through the circuit, the temperature of the refrigerant detected by the temperature detection device in the circuit does not rise even if the external heater is operating, whereas if the refrigerant is circulating through the circuit, the detected temperature of the refrigerant changes. The external heater operation determination system includes a determination device able to determine that the external heater is not operating on a basis of a change in the temperature after the circulation of the refrigerant.

Abstract: To provide a running gear structure of an internal combustion engine capable of reducing the size of the internal combustion engine. In a running gear structure of an internal combustion engine including a supercharger and a supercharger driving mechanism transmitting power to the supercharger and driving the supercharger, the supercharger driving mechanism is provided with driving force transmission members (a third intermediate gear and a fourth intermediate gear) disposed on a side opposite to cylinders of the internal combustion engine across valve trains driving a valve gear using, as a power supply, driving force of the crankshaft rotated by explosion in the cylinders. The valve train is disposed closer to an inner side of the internal combustion engine.

Abstract: Methods and systems relating to an internal combustion engine support bracket are disclosed. The engine bracket includes a housing defining a fluid passage configured to be in fluid receiving communication with an upstream aperture of the housing and in fluid providing communication with a downstream aperture of the housing. The engine bracket also includes at least one mounting platform with fasteners configured to removably engage an accessory device of an internal combustion engine.

Abstract: A cylinder block assembly may include a cylinder block, a cylinder body disposed in the cylinder block, with a plurality of cylinder bores formed in the cylinder body, a fluid jacket, which is formed between an inner circumferential surface of the cylinder block and an outer circumferential surface of the cylinder body, and through which coolant flows, and a block insert disposed in the water jacket and configured to guide a flow of coolant, wherein the cylinder block may include a second block coolant outlet, which is formed at a second side in a surface of an exhaust side of the cylinder block, and through which the coolant in the water jacket is discharged, and wherein the exhaust side may include a side at which combustion gas is exhausted out of the cylinder body.

Abstract: A method for operating an engine system in an internal combustion engine comprising during a first operating condition, circulating coolant through a coolant jacket in a turbine housing at least partially enclosing a turbine rotor and during a second operating condition, replacing coolant in the coolant jacket with air from a venting reservoir.

Abstract: A fluid device having a fluid machine and a rotary electric machine includes a fluid machine and a rotary electric machine connected to a rotating shaft of the fluid machine. A cooler is arranged for carrying out liquid-cooling using a fluid of a cooling pipe connecting an upstream portion and a downstream portion of the fluid machine to bypass the fluid machine. The fluid machine and the rotary electric machine are detachably coupled to each other. Hence, the rotary electric machine can enhance the cooling performance for the rotary electric machine and reduce its size, achieving improvements in maintainability and serviceability.

Abstract: Systems and methods for providing an improved strategy for controlling a variable speed water pump in a vehicle. In some embodiments, more than one water pump speed function is calculated based on values obtained from vehicle sensors, and a controller chooses among the water pump speed function results to set a water pump speed. In some embodiments, the water pump speed is increased when driveline torque is greater than a threshold amount for an amount of time that varies based on the driveline torque. In some embodiments, ambient temperature is considered while determining whether the water pump should provide full coolant flow to an auxiliary coolant loop of a trailer.

Abstract: A cooling structure of an engine is provided, which includes a water jacket formed in a cylinder block to surround a cylinder bore of the engine, a spacer having a vertical wall surface and inserted into the water jacket, and a coolant inlet formed in an outer wall of the water jacket, and for circulating to the water jacket coolant introduced from the coolant inlet. The vertical wall surface surrounds the cylinder bore. The spacer includes a guide part provided at a position of a lower end part of the vertical wall surface corresponding to the coolant inlet, and for guiding the coolant introduced from the coolant inlet to flow around the vertical wall surface. The guide part extends outwardly from the lower end part of the vertical wall surface toward the coolant inlet along a bottom wall of the water jacket.

Abstract: A straddle-type vehicle includes a radiator; an engine; and a passage which is provided inside the cylinder block and the cylinder head, flows a coolant from the cylinder head toward the cylinder block, and is provided with an inlet located on a rear side of the cylinder head; a pipe which flows the coolant from the radiator toward the passage, and flows the coolant from an outlet toward the radiator; and a thermostat which limits a flow of the coolant inside the pipe in a case where a temperature of the coolant is equal to or lower than a predetermined temperature, and permits the flow of the coolant in a case where the temperature is higher than the predetermined temperature, wherein the outlet is provided on a front side of the cylinder block and the thermostat is attached on a front portion of the engine.

Abstract: A structure of mounting a power controller in a vehicle, the power controller to be mounted in a front compartment of the vehicle: includes a connector attached to a back portion of a housing of the power controller; a cowl panel positioned behind the connector; and a pair of protrusions provided on the housing. Each of the pair of protrusions is arranged on a corresponding lateral side of the connector. Back ends of the protrusions are positioned on a back side with respect to a back end of the connector. A distance from the back end of one protrusion of the pair of protrusions to the cowl panel is shorter than a distance from the back end of the other protrusion to the cowl panel, the one protrusion being closer to a center line in a width direction of the vehicle than the other protrusion is.

Abstract: An airflow assembly includes a fan, a shroud, a plurality of ribs, and a fan support. The fan has a number of fan blades. The shroud includes (i) a plenum defining a plenum opening located adjacent to the number of fan blades, and (ii) a barrel extending from the plenum so as to surround the plenum opening. The plenum further defines at least one airflow opening spaced apart from the plenum opening. Each of the plurality of ribs extends inwardly from the barrel. The fan support is attached to the plurality of ribs and is configured to support the fan. The at least one airflow opening is not an attachment structure or a guiding structure, is not configured to receive a fastening member, and does not function as a water drain.

Abstract: An engine assembly includes a turbocharger and a fluid conduit thermally coupled to the turbocharger such that the coolant flowing through the fluid conduit can extract heat from the turbocharger. The engine assembly further includes an exhaust gas recirculation (EGR) system and a second fluid conduit thermally coupled to the EGR system such that the coolant flowing through the second fluid conduit can extract heat from the EGR system. The engine assembly also includes an engine head defining a coolant gallery extending therethrough. The coolant gallery is in fluid communication with the first fluid conduit and the second fluid conduit. Further, the engine assembly includes an exhaust manifold integrated with the engine head. The coolant gallery is thermally coupled to the exhaust manifold such that the coolant flowing through the coolant gallery can extract heat from the exhaust manifold.

Abstract: A combined heat and power system includes a liquid-cooled internal combustion engine, an air-cooled alternator, an air-to-water heat exchanger, and a coolant-to water heat exchanger. The liquid-cooled internal combustion engine includes a liquid cooling system configured to cool the engine with coolant thereby heating the coolant. The air-cooled alternator is configured to be driven by the internal combustion engine to produce electricity. The alternator includes an air cooling system configured to cool the alternator thereby heating air. The air-to-water heat exchanger is configured to place heated air and water in a heat exchange relationship to preheat the water and cool the air. The coolant-to-water heat exchanger is configured to place heated coolant and preheated water from the air-to-water heat exchanger in a heat exchange relationship to further heat the water and cool the coolant. The coolant-to-water heat exchanger provides heated water to the housing water outlet.

Abstract: A system is provided for directing airflow through an engine compartment of an off-road agricultural vehicle. The system may include an air dam that, in conjunction with an engine face, provides flow-directing baffling in the engine compartment that directs heated air from a radiator out discharge openings through side walls of a hood that covers the engine compartment. The air dam facilitates forcing heated air from the radiator sideways out the discharge openings of the hood, significantly reducing or preventing a radiator fan from pushing hot air to flow across the components of the rear engine compartment area, including preventing flow across a majority of air inlet components and engine surfaces that are rearward of the front engine face.

Abstract: A fluid-metering valve assembly for use in a coolant regulator of an internal combustion engine cooling system may include a main body and a metering member. The main body is configured to be rotatably secured within an internal chamber of the coolant regulator. A fluid passage is formed through the main body, and is defined, at least in part, by a metering edge of the main body. The metering member is formed proximate to the metering edge of the main body, and is configured to allow variable doses of fluid to be metered into or out of the coolant regulator as the main body is rotated within the coolant regulator. The metering member includes one or more linear features formed into the main body.

Abstract: A cooling water control valve apparatus capable of independently controlling flow rates of cooling water in two lines with a single apparatus for cooling water control and capable of achieving cost reduction. A cooling water control valve apparatus which adjusts a flow rate of cooling water for cooling an object to be cooled includes two inlet ports through which cooling water is introduced, an electrical control valve which is arranged at a first passage communicated with one of the inlet ports and which adjusts a flow rate of cooling water flowing through the first passage with electronic control, and a thermosensitive valve which is arranged at a second passage communicated with the other of inlet ports and which adjusts a flow rate of cooing water flowing through the second passage owing to displacement of a temperature detecting medium with temperature.

Abstract: A rotor resin assembly of a rotor of an electric motor includes a rotor magnet including a substantially cylindrical yoke molded from thermoplastic resin containing a soft magnetic material or ferrite and a resin magnet integrally formed in the outer circumference of the yoke, a position detection magnet arranged at one end in the axial direction of the rotor magnet, and a substantially doughnut-like rotor core arranged in the inner circumference of the rotor magnet and formed by laminating a predetermined number of electromagnetic steel plates. The rotor magnet, the position detection magnet, and the rotor core are integrally formed by resin. A shaft is inserted into an inner diameter section of the rotor core, and the rotor resin assembly is caulked by a jig to form a recess in the vicinity of the inner diameter sections of both end faces of the rotor core and assembled to the shaft.

Abstract: A system, comprising a vehicle engine with a crankshaft, a bracket structure coupled to the vehicle engine, a thermostat positioned in the bracket structure, an accessory device coupled to the bracket structure, a water pump mounted to the bracket structure, and a drive loop coupling the accessory device and water pump with the crankshaft.

Abstract: A method of modifying the oil cooling system of a diesel engine includes the steps of removing the original equipment liquid-to-liquid heat exchanger and installing a manifold having a configuration adapted to match the mounting configuration of the oil passages of the original equipment liquid-to-liquid heat exchanger. The manifold has an oil outlet port directed to a remotely mounted oil cooler. The manifold also has a water passage having a configuration that is adapted to match the mounting configuration of the water passages of the original equipment liquid-to-liquid heat exchanger. The water passage causes the entirety of the flow of water to be discharged back to the water cooling system of the engine where it is circulated by the water pump through the water cooling passages in the engine.

Abstract: A prime mover assembly is suitable for use in a hazardous environment. The prime mover assembly includes a hazardous rated enclosure, a non-hazardous rated prime mover disposed in the enclosure, and a gland assembly extending through the enclosure in communication with the prime mover. The gland assembly provides power and instrumentation through the enclosure to the prime mover.

Abstract: A coolant passage structure for an internal combustion engine includes a coolant communication member. The coolant communication member includes a centrifugal water pump, a housing portion, a scroll portion, a second coolant passage portion, a first coolant passage portion, a direction of a center line of the second coolant passage portion, and a rib. The first coolant passage portion includes a downstream region connected to an upstream region of the second coolant passage portion. A direction of a center line of the first coolant passage portion is parallel to a direction of a rotation shaft of the centrifugal water pump. The direction of the center line of the second coolant passage portion is orthogonal to the direction of the center line of the first coolant passage portion. The rib is disposed on an internal circumferential surface of the first coolant passage portion.

Abstract: A cooling water passage structure includes a cooling water passage in an internal combustion engine, a water pump, and a communication member. The communication member has a cooling water communication passage to supply cooling water from the water pump to the cooling water passage. The cooling water communication passage includes a water pump housing, a first cooling water passage, and a second cooling water passage. The water pump housing contains the water pump. The first cooling water passage has a substantially triangular shape that widens from a vertex on an upstream side. The second cooling water passage includes a cylindrical passage extending in a direction orthogonal to an operating axis of the water pump. The second cooling water passage is displaced from an operating plane of the water pump.

Abstract: While enlargement of cover members attached to an engine body is avoided, the flexibility of the shapes of the cover members is increased and it is made possible to lead to a predetermined position drainage discharged from a cooling water pump attached to the external surface of a lateral wall of the engine body. A drainage discharge hole for discharging drainage is provided in a lower portion of a pump case. An engine side rib leads downward drainage discharged from the drainage discharge hole is integrally provided on an engine body forming part of the engine body so as to project from an external surface of a lateral surface thereof.

Abstract: A control device includes target temperature setting means, feedback control means, and shortcut control means. The target temperature setting means sets a target temperature (?) of a coolant according to a temperature state of an internal combustion engine. The feedback control means controls a control valve in such a manner that a coolant temperature is the target temperature (?). The shortcut control means controls the control valve in such a manner that, when the internal combustion engine is in a cold state, the target temperature setting means sets as the target temperature (?) a warming-up temperature (?) higher than a feedback control temperature (A or B) which is set during feedback control.

Abstract: A mechanical coolant pump for an internal combustion engine includes an outlet channel comprising an outlet valve and an outlet channel wall with a passing slit. An impeller is configured to pump a coolant into the outlet channel. The outlet valve comprises a shiftable flat valve plate configured to be shiftable in a transversal plane of the outlet channel through the passing slit of the outlet channel wall.

Abstract: 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.

Abstract: 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.

Abstract: A method is disclosed for heating a liquid supplied to an engine of a motor vehicle by a pump when the temperature of the liquid is low, thereby reducing the operating efficiency of the engine. The method comprises inefficient operation of the pump by constricting flow to create heat that is transferable to the liquid. Inefficient operation of the pump is enacted when service brakes are applied and the vehicle is decelerating to minimize negative impact on fuel economy and overall engine efficiency.