Disengageable coolant pump for engine

A coolant pump includes a drive wheel, a driven wheel, and a coupling-control pump. The driven wheel is connected to a coolant impeller and coupled by a variable degree to the drive wheel, the degree of coupling responsive to an amount of fluid confined between the drive wheel and the driven wheel. The coupling-control pump is configured to change the amount of fluid confined between the drive wheel and the driven wheel based on a variable control signal.

Split Cooling System for an Internal Combustion Engine

The invention relates to a split cooling circuit (16) of an internal combustion engine (17), with a cylinder head water jacket (18) and an engine block water jacket (19) being provided. The split cooling circuit (16) has a pump (21), a radiator (22), a thermostat (23) and a heater core (24), with a coolant circulating in the split cooling circuit (16). To considerably reduce a warm-up phase of the internal combustion engine, the thermostat (23) is arranged to simultaneously control a flow of the coolant through the engine block water jacket (19) and through the radiator (22) when the coolant exceeds a predetermined temperature.

A system and method for heating a vehicle catalytic converter

A cooling system valve and method

A cooling system valve 10 has a movable element 20 comprising a fusible portion 22 and a heating element 26 configured to heat and melt the fusible portion. The valve may feature a non-fusible portion 24 that houses the heating element and extends around the perimeter of the movable element to surround the fusible portion. The movable element may rotate between open and closed positions, and have electrical conductors 28 that pass through a pivot point 29 of the movable element. A cooling system using the valve may also feature a controller (140, fig 3) to selectively activate the heating element to open and close the valve. The system may also include an electronically controlled actuator 170 to move the movable element between the open and closed positions, and a temperature sensor 160 to detect the temperature of coolant in the system. A method for operating a cooling system using the aforementioned valve is also disclosed.

LUBRICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR LUBRICATION

Embodiments for a lubrication system for an internal combustion engine are provided. In one example, a lubrication system for an internal combustion engine comprises a lubricant circuit, a radiator for cooling the lubricant, a heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator, and a valve for switching over the lubricant circuit between the radiator and the heat accumulator. In this way, the oil may be rapidly heated during cold engine start conditions. 1. A lubrication system for an internal combustion engine , comprising:a lubricant circuit;a radiator for cooling the lubricant;a heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator; anda valve for switching over the lubricant circuit between the radiator and the heat accumulator.2. The lubrication system as claimed in claim 1 , wherein the lubricant is oil.3. The lubrication system as claimed in claim 1 , further comprising a pump arranged in the lubricant circuit for delivering the lubricant.4. The lubrication system as claimed in claim 1 , wherein the heat accumulator is a chemical heat accumulator.5. The lubrication system as claimed in claim 1 , wherein the lubricant circuit runs through the radiator in a normal mode and runs through the heat accumulator in a warming up mode.6. The lubrication system as claimed in claim 5 , wherein the heat accumulator is arranged on the lubricant circuit in such a way that the heat accumulator is charged by the lubricant in the normal mode.7. The lubrication system as claimed in claim 6 , wherein the cooling performance of the radiator is substantially equal to the charging capacity for the heat accumulator.8. The lubrication system as claimed in claim 1 , wherein the heat accumulator is arranged directly upstream of the engine.9. An internal combustion engine having a lubrication system as claimed in .10. ...

Integrated engine thermal management

The invention relates to a cooling strategy for an internal combustion engine (1) which has at least one cylinder head (2) and an associated cylinder block (3). A coolant flows in a coolant circuit (4), with at least one control element (6, 7, 8, 9) being assigned to the coolant circuit (4). During a warmup of the internal combustion engine, in successive phases, the coolant flow is conducted to separate cooling regions by the control elements (6, 7, 8, 9), wherein in an operating mode at operating temperature which follows the warmup, the coolant flow is conducted to separate cooling regions by the control elements (6, 7, 8, 9) taking into consideration the operating states of the internal combustion engine.

Liquid-cooled internal combustion engine with selector guide valve, and method for controlling the selector guide valve of an internal combustion engine of said type

A selector guide valve in cooling system of an internal combustion engine is provided. The selector guide valve includes a first control drum independently rotatable and including an inlet receiving engine coolant from a pump and a plurality of coolant openings extending through the first control drum and a second control drum independently rotatable, circumferentially surrounding the first control drum, and including a plurality of coolant openings extending through the second control drum.

Method for Warming an Internal Combustion Engine, and Internal Combustion Engine

The disclosure relates to a method for expediting warm up of an internal combustion engine cylinder block and engine oil utilizing an existing oil coolant circuit. A method for warming up an internal combustion engine with at least one cylinder, a cylinder block which is formed by an upper crankcase half mounted to a lower crankcase half, said lower crankcase half containing an oil sump which is fed, via a supply line, by a coolant jacket, an inlet side of said coolant jacket supplied in turn with oil via the oil sump by an oil pump, the method comprising: releasing oil from the coolant jacket via gravity to reduce a cooling capacity of the internal combustion engine. 1. A method for warming up an internal combustion engine with at least one cylinder , a cylinder block which is formed by an upper crankcase half mounted to a lower crankcase half , said lower crankcase half containing an oil sump which is fed , via a supply line , by a coolant jacket , an inlet side of said coolant jacket supplied in turn with oil via the oil sump by an oil pump , comprising:releasing oil from the coolant jacket via gravity to reduce a cooling capacity of the internal combustion engine.2. The method as claimed in claim 1 , wherein a quantity of heat removed from the cylinder block by oil cooling is controlled at least in part by the releasing of oil from the coolant jacket.3. The method as claimed in claim 1 , wherein the released oil is directed into the oil sump.4. The method as claimed in claim 1 , wherein the supply line is used as a line for releasing oil via gravity.5. The method as claimed in claim 1 , wherein at least one additional line is used to release oil via gravity claim 1 , and wherein said additional line is connected to the at least one integrated coolant jacket.6. The method as claimed in claim 5 , wherein the at least one additional line is a permanently open line which has a diameter D of D<3 mm.7. The method as claimed in claim 5 , wherein the at least one ...

Method for operating a coolant circuit

A method for operating a liquid coolant circuit of an internal combustion engine is described in which the coolant circuit contains an integrated EGR cooler such that the cooling system has a single circuit with two operational modes. The method includes a controller that can switch between operational modes to enable delivery of coolant to the EGR cooler when the flow of coolant through the block cooling circuit is blocked. In the second operational mode, the method also includes using an auxiliary pump to pass coolant to the EGR cooler while bypassing the main coolant pump, which can occur by adjusting the flow of coolant through the circuit so the flow through a bypass line is reversed relative to the inherent forward direction of flow in the bypass line during the first operational mode.

CYLINDER SPECIFIC ENGINE COOLING

Methods and systems are provided for a cooling system. In one example, a cooling system comprises a device for regulating a coolant flow, where the device is in force-fit connection to a plurality of crankshafts, each crankshaft corresponding to a single cylinder of a plurality of cylinders. The cooling system further comprises a plurality of injectors for injecting coolant onto outer surfaces of the plurality of injectors. 1. A cooling system of an internal combustion engine comprising at least two cylinders , the cooling system , comprising:a coolant line comprising a pump for regulating the flow of a coolant, wherein the pump is in force-fit connection with the crankshaft of the internal combustion engine, and wherein a control valve is configured to adjust a flow of coolant from the pump to a first spray device of a first cylinder or to a second spray device of a second cylinder, wherein the first spray device is configured to spray coolant onto a first cylinder outer wall and the second spray device is configured to spray coolant onto a second cylinder outer wall.2. The cooling system of claim 1 , wherein the control valve is a second control valve downstream of a first control valve relative to a direction of coolant flow claim 1 , wherein the first control valve is configured to adjust coolant flow to the second control valve or to an expansion tank.3. The cooling system of claim 2 , wherein the first control valve and the second control valve are directional control valves comprising three ports and two switch positions.4. The cooling system of claim 3 , wherein a first partial coolant line fluidly couples the first control valve to the second control valve claim 3 , and wherein a second partial coolant line fluidly couples the first control valve to the expansion tank.5. The cooling system of claim 4 , wherein a first position of the first control valve flows coolant to only the first partial coolant line claim 4 , wherein a second position of the first ...

Coolant circuit with head and block coolant jackets connected in series

A method to operate a split coolant circuit of a combustion engine wherein a cylinder head coolant jacket and an engine block coolant jacket are provided in series with a pump delivering coolant to an inlet of the cylinder head coolant jacket without being directly connected to an inlet of the engine block coolant jacket. This allows for 100% of the pump flow rate to be delivered to the cylinder head coolant jacket before division of coolant flow occurs for various engine operating conditions.

A system and method for heating a vehicle catalytic converter

A system for heating a catalytic converter comprises a catalytic converter 30 disposed in an exhaust passage 20 for the flow of exhaust gas from an engine of a vehicle. A heat exchanger 40 is in thermal communication with the exhaust passage. A flow passage 50 at least partially surrounds the catalytic converter and is in thermal communication with the heat exchanger. A heat transfer fluid 68 disposed within the passage flows in a cycle around the heat exchanger and the catalytic converter, transferring heat from the heat exchanger to the catalytic converter. Part of the flow passage may be within a thermally insulating jacket 70 around the catalytic converter, and spaced radially outwardly from the catalytic converter by an isolation collar 80. An insulation sleeve or cap 90 may be adjacent an exhaust gas entry or exit point of the catalytic converter. The heat exchanger may be downstream of the catalytic converter.

LIQUID-COOLED INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A liquid-cooling engine system is described with a coolant control device having an adjustable control element capable of independently controlling the flow of coolant through a cylinder head and cylinder block. The device contains a rotatable drum that can be rotated along its longitudinal axis to expose holes and thereby allows coolant circulation based on a temperature within the engine system. The coolant control device has three positions but may also be fine-tuned within each position to control the flow of coolant through the cylinder head and cylinder block in order to adjust the amount of heat extracted according to demand, which serves to control the liquid-type cooling circuit in a demand-dependent manner that accounts for the operating modes of the internal combustion engine. 1. A liquid-cooling system for an internal combustion engine comprising:at least one cylinder head and one cylinder block,the cylinder head and cylinder block both including at least one integrated coolant jacket with an inlet supply opening and an outlet discharge opening, a coolant circuit being formed by coupling the discharge openings to the supply openings via a recirculation line, which includes at least a heat exchanger and control unit.2. The system of claim 1 , wherein the control unit has a chamber which serves to distribute coolant to at least two outlets downstream of the setting element.3. The system of claim 2 , wherein a second outlet of the control unit is coupled to a heating circuit that comprises a feed line and a recirculation line at the inlet side downstream of the heater claim 2 , the heater being operated with coolant.4. The system of claim 3 , wherein a recirculation line includes a self-controlling valve upstream of the heat exchanger claim 3 , the self-controlling valve having a temperature-reactive element impinged on by coolant capable of blocking the recirculation line claim 3 , and wherein the first outlet is coupled to a bypass line which bypasses the ...

Independent cooling of cylinder head and block

Various systems are provided for liquid-cooling of an internal combustion engine. In one example, an internal combustion engine includes a cylinder head, a cylinder block coupled to the cylinder head, a first return line fluidically coupled to the cylinder head and to a coolant valve and including a heat exchanger configured to remove heat from coolant, a second return line fluidically coupled to the cylinder block and to the coolant valve, a bypass line branching off from the first return line and fluidically coupled to the coolant valve, and an originating supply line fluidically coupled to the cylinder head, the cylinder block, and the coolant valve, the originating supply line including a pump configured to supply coolant. The coolant valve is configured to control coolant flow through the coolant lines via rotational selection of one of a plurality of working positions.

Internal combustion engine with liquid cooling

A system for providing cooling to at least one cylinder of an engine is disclosed. The system comprises at least one coolant jacket in a cylinder head arranged on an inlet side of a cylinder and at least one coolant jacket in the cylinder head arranged on an outlet side of the cylinder. The outlet-side coolant jacket may be part of a water cooling circuit, while the inlet-side coolant jacket may be part of an oil circuit.

Method and system for an internal combustion engine with liquid-cooled cylinder head and liquid-cooled cylinder block

Methods and systems are provided for separately providing liquid-cooling to a cylinder head and a cylinder block. In one example, a method includes selectively pumping coolant with a single pump to each of a first cylinder head coolant jacket and a cylinder block coolant jacket based on engine temperatures. The method further includes discharging coolant from the first cylinder head coolant jacket to a heating circuit line including a vehicle interior heater and discharging coolant from the cylinder block cooling jacket and back to the single pump.

A system and method for heating a vehicle catalytic converter

A system and method for heating a vehicle catalytic converter

A system for heating a catalytic converter comprises a catalytic converter (30, fig 2) disposed in an exhaust passage (20, fig 2) for the flow of exhaust gas from an engine of a vehicle. A heat exchanger (40, fig 2) is in thermal communication with the exhaust passage. A flow passage (50, fig 2) at least partially surrounds the catalytic converter and is in thermal communication with the heat exchanger. A heat transfer fluid (68, fig 2) disposed within the passage flows in a cycle around the heat exchanger and the catalytic converter, transferring heat from the heat exchanger to the catalytic converter. A cooling system 400 comprises a further heat exchanger 414 in thermal communication with the flow passage. A further flow passage 402 is in thermal communication with the further heat exchanger and a cooling means 406. A further heat transfer fluid 404 disposed within the further flow passage flows in a cycle around the further heat exchanger and the cooling means, transferring heat from ...

Reductant tank as a heat storage device

A method for operating an engine system is provided. The method includes during a first operating condition, flowing oil from an oil sump to a heat exchanger attached to a reductant tank and transferring heat from oil flowing through the heat exchanger to reductant stored in the reductant tank. The method further includes during a second operating condition, flowing oil from the oil sump to the heat exchanger and transferring heat from the reductant stored in the reductant tank to oil flowing through the heat exchanger.

LUBRICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR LUBRICATION

Embodiments for a lubrication system for an internal combustion engine are provided. In one example, a lubrication system for an internal combustion engine comprises a lubricant circuit, a radiator for cooling the lubricant, a heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator, and a valve for switching over the lubricant circuit between the radiator and the heat accumulator. In this way, the oil may be rapidly heated during cold engine start conditions. 113-. (canceled)14. An engine method , comprising:during a first condition, pumping oil to piston cooling jets of an engine through a chemical heat accumulator; pumping oil to the piston cooling jets through a radiator, bypassing the heat accumulator, and', 'periodically recharging the heat accumulator by pumping engine oil through the heat accumulator; and', 'in response to engine knocking, interrupting the recharge., 'during a second condition15. The method of claim 14 , wherein the first condition comprises oil temperature below a cold threshold claim 14 , and wherein the second condition comprises oil temperature at or above the cold threshold.16. The method of claim 14 , wherein interrupting the recharge further comprises pumping oil to the piston cooling jets through the radiator claim 14 , and bypassing the heat accumulator.17. The method of claim 14 , further comprising claim 14 , during a third condition claim 14 , pumping oil directly to the piston cooling jets.18. The method of claim 17 , wherein the third condition comprises the heat accumulator being below a charge threshold. The present application is a continuation of U.S. patent application Ser. No. 13/413,408, entitled “LUBRICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR LUBRICATION,” filed Mar. 6, 2012, which claims priority to German Patent Application No. 102011005496.0, filed on Mar. 14, 2011, the entire contents of each of which are hereby ...

222-0047 THERMAL MANAGEMENT SYSTEM WITH SECONDARY CIRCUIT

Methods and systems are provided for a thermal management system for a battery-powered electric vehicle, which system comprises a primary circuit and a secondary circuit, which has at least a first partial circuit having a cooling device, at least a second partial circuit having a heating device, at least a third partial circuit supplying a battery and at least a fourth partial circuit supplying components of the power electronics and passing through a heat exchanger, and the thermal management system further comprises a controller, wherein the primary circuit has at least one indirect evaporator and at least one indirect condenser, a number of pumps are arranged in the system for driving a fluid flow in the partial circuits, and a maximum number of five control valves is controlled in the system for controlling the fluid flow.

A failsafe cooling system valve and method of use

INTERNAL COMBUSTION ENGINE WITH LIQUID-COOLED TURBINE

Embodiments for cooling a turbine of an engine are provided. In one example embodiment, an internal combustion engine comprises a turbocharger including a turbine having a coolant jacket integrated in a housing of the turbine, and an oil circuit coupled to the coolant jacket of the turbine. By cooling the turbine with the oil circuit, the turbine may be constructed from less-heat resistant materials.

Internal combustion engine with liquid-cooled turbine

Embodiments for cooling a turbine of an engine are provided. In one example embodiment, an internal combustion engine comprises a turbocharger including a turbine having a coolant jacket integrated in a housing of the turbine, and an oil circuit coupled to the coolant jacket of the turbine. By cooling the turbine with the oil circuit, the turbine may be constructed from less-heat resistant materials.

Liquid-cooled internal combustion engine having exhaust-gas turbocharger

A thermosiphon system in an engine is provided herein. The thermosiphon system includes a coolant channel traversing a bearing housing, the bearing housing included in a bearing coupled to a shaft mechanically coupled to a turbine and a compressor in a turbocharger, a ventilation vessel in fluidic communication with at least one coolant passage traversing at least one of a cylinder head and a cylinder block in the engine, the at least one coolant passage included in a cooling circuit, and a thermosiphon coolant line having an inlet in fluidic communication with an outlet of the coolant channel and an inlet of the ventilation vessel, the inlet positioned vertically below an interface between liquid and vapor coolant in the ventilation vessel.

Lubrication system for an internal combustion engine, and method for lubrication

Embodiments for a lubrication system for an internal combustion engine are provided. In one example, a lubrication system for an internal combustion engine comprises a lubricant circuit, a radiator for cooling the lubricant, a heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator, and a valve for switching over the lubricant circuit between the radiator and the heat accumulator. In this way, the oil may be rapidly heated during cold engine start conditions.

METHODS AND SYSTEMS FOR COOLING ARRANGEMENT

Methods and systems are provided for a cooling arrangement. In one example, a system comprises a separator arranged in a block coolant jacket. The separator fluidly separates an upper portion of the block coolant jacket from a lower portion of the block coolant jacket.

Thermostat valve for a coolant circuit

Methods and systems are provided for a valve. In one example, a system may include a cooling arrangement including the valve, wherein the valve is configured to variably adjust coolant flow rates in response to one or more of a coolant temperature and a charge air pressure. The valve includes a transmission pin which may be acted upon via an expansion element and/or a pressure actuator.

Disengageable coolant pump for engine

A coolant pump includes a drive wheel, a driven wheel, and a coupling-control pump. The driven wheel is connected to a coolant impeller and coupled by a variable degree to the drive wheel, the degree of coupling responsive to an amount of fluid confined between the drive wheel and the driven wheel. The coupling-control pump is configured to change the amount of fluid confined between the drive wheel and the driven wheel based on a variable control signal.

LIQUID-COOLED INTERNAL COMBUSTION ENGINE WITH SELECTOR GUIDE VALVE, AND METHOD FOR CONTROLLING THE SELECTOR GUIDE VALVE OF AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A selector guide valve in cooling system of an internal combustion engine is provided. The selector guide valve includes a first control drum independently rotatable and including an inlet receiving engine coolant from a pump and a plurality of coolant openings extending through the first control drum and a second control drum independently rotatable, circumferentially surrounding the first control drum, and including a plurality of coolant openings extending through the second control drum.

Cooling system and method

A cooling system for an engine. The cooling system includes a flow control element including an inlet in fluidic communication with an outlet of a cylinder head water jacket, a first outlet port in fluidic communication with a heat exchanger, and a second outlet port in fluidic communication with an inlet of an engine block water jacket.

Method for warming an internal combustion engine, and internal combustion engine

The disclosure relates to a method for expediting warm up of an internal combustion engine cylinder block and engine oil utilizing an existing oil coolant circuit. A method for warming up an internal combustion engine with at least one cylinder, a cylinder block which is formed by an upper crankcase half mounted to a lower crankcase half, said lower crankcase half containing an oil sump which is fed, via a supply line, by a coolant jacket, an inlet side of said coolant jacket supplied in turn with oil via the oil sump by an oil pump, the method comprising: releasing oil from the coolant jacket via gravity to reduce a cooling capacity of the internal combustion engine.

COOLANT CIRCUIT WITH HEAD AND BLOCK COOLANT JACKETS CONNECTED IN SERIES

A method to operate a split coolant circuit of a combustion engine wherein a cylinder head coolant jacket and an engine block coolant jacket are provided in series with a pump delivering coolant to an inlet of the cylinder head coolant jacket without being directly connected to an inlet of the engine block coolant jacket. This allows for 100% of the pump flow rate to be delivered to the cylinder head coolant jacket before division of coolant flow occurs for various engine operating conditions. 1. A split coolant circuit of a combustion engine , comprising:a cylinder head coolant jacket having an outlet housing into which an exhaust coolant jacket and an inlet coolant jacket of the cylinder head coolant jacket open;an engine block coolant jacket;a pump delivering coolant to an inlet of the cylinder head coolant jacket without being directly connected to an inlet of the engine block coolant jacket;a radiator;a control element;a heater;a block line, without a block control element, arranged directly on the outlet housing and leading to an inlet side of the engine block coolant jacket, coolant conducted in a same flow direction through the engine block coolant jacket as through the cylinder head coolant jacket;a block return line opening directly into the control element arranged on an outlet side of the engine block coolant jacket;a block shut-off valve arranged in the block return line;a heater line which leads to a cabin heater arranged on the control element; anda heater shut-off valve in a heater return line of the cabin heater.2. The split coolant circuit as claimed in claim 1 , whereinthe engine block coolant jacket has a coolant flow direction operating in the same direction as the coolant flow direction in the cylinder head coolant jacket, drawing the coolant from the outlet housing3. The split coolant circuit as claimed in claim 1 , further comprising:a pump line connected directly to an inlet side of an integrated exhaust gas collector, coolant from the ...

Internal combustion engine comprising a liquid cooling system and oil supply and method for operating such an internal combustion engine

An internal combustion engine is provided. The internal combustion engine includes an oil circuit and a pump in fluidic communication with a supply line and at least one lubricant receiving component and a liquid cooling system including a coolant circuit having an oil pressure actuated coolant valve and a coolant valve control line in fluidic communication with the pump and having a first configuration in which coolant may flow therethrough and a second configuration in which coolant is inhibited from flowing therethrough, the first and second configurations triggered in response to a change in oil pressure in the coolant valve control line.

Applied-ignition, liquid-cooled internal combustion engine with cooled cylinder head

Methods and systems are provided for thermally insulating an integrated exhaust manifold for a cylinder head of an applied-ignition, liquid-cooled internal combustion engine. In one example, a method may include regional insulation at a collection point where individual exhaust lines and/or partial exhaust lines merge to form an overall exhaust line within the cylinder head. The regional insulation may be formed integrally with a seal and coupled to an outlet flange of the cylinder head and may include a series of tongue-like projections that extend from the cylinder head outlet flange toward the cylinder exhaust lines.

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. 1. An internal combustion engine comprising:a cylinder head having an integrated coolant jacket with a first supply opening at an inlet side for the feeding of coolant and a first discharge opening at an outlet side for the discharge of the coolant;a cylinder block having an integrated coolant jacket with a second supply opening at an inlet side for the feeding of the coolant and a second discharge opening at an outlet side for the discharge of the coolant;a coolant circuit connecting the discharge openings to the supply openings via a recirculation line and a heat exchanger;a pump coupled receiving the coolant from the recirculation line at a pump inlet and delivering the coolant to a pump outlet; anda control unit having an inlet connected to the 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, wherein 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 ...

Internal combustion engine with a lubrication system and method for producing an internal combustion engine

A lubrication system in an internal combustion engine is provided. The lubrication system includes a crankshaft bearing supporting a crankshaft, a supply line including an outlet flowing oil to the crankshaft bearing and an inlet receiving oil from an oil gallery, and thermal insulation at least partially surrounding at least a portion of an inner wall of the supply line and/or the oil gallery.

INTERNAL COMBUSTION ENGINE WITH OIL-COOLED CYLINDER BLOCK AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

Embodiments for selectively filling a cylinder block cooling jacket with oil are provided. In one example, a control unit may be rotated among a plurality of working positions to open up and/or block flow of oil into and out of the cylinder block cooling jacket.

Hybrid cooling system of an internal combustion engine

A hybrid cooling system for an engine is provided. The system comprises a block oil cooling circuit, a head coolant cooling circuit, the head and block circuits having a common heat exchanger. The system also includes a flow device in the head cooling circuit for preventing coolant flow in the head cooling circuit at least during a first phase of a warm-up phase of the internal combustion engine, a delivery device in the block cooling circuit which delivers engine oil constantly under pressure through the block cooling circuit to bearing points in a cylinder block and to bearing points in a cylinder head, and a control element arranged in a control line to reduce the delivery capacity of the delivery device through the block cooling circuit at least during the first phase of the warm-up phase. In this way, heat transfer in the common heat exchanger may be substantially prevented.

Turbine housing

The internal combustion engine is provided which may include a cylinder head, a turbine, and a turbine housing. The turbine housing may include an exhaust gas passage, at least one coolant fluid passage, and a wall between the passages. The wall may have a first area (Aexhaust) disposed to absorb heat from an exhaust flow passing through the exhaust gas passage, and a second area (Acoolant) disposed to transfer heat from the wall to be absorbed by a coolant fluid flow passing through the at least one coolant fluid passage, wherein the following applies: Acoolant/Aexhaust≤1.2.

METHOD FOR OPERATING A COOLANT CIRCUIT

A method for operating a liquid coolant circuit of an internal combustion engine is described in which the coolant circuit contains an integrated EGR cooler such that the cooling system has a single circuit with two operational modes. The method includes a controller that can switch between operational modes to enable delivery of coolant to the EGR cooler when the flow of coolant through the block cooling circuit is blocked. In the second operational mode, the method also includes using an auxiliary pump to pass coolant to the EGR cooler while bypassing the main coolant pump, which can occur by adjusting the flow of coolant through the circuit so the flow through a bypass line is reversed relative to the inherent forward direction of flow in the bypass line during the first operational mode. 1. A method for operating a coolant circuit of an internal combustion engine , in which the coolant circuit includes:at least one main coolant pump, andat least one block cooling circuit, and determining whether the flow through a block cooling circuit is to be stopped based on a temperature within the circuit,', 'switching a control valve to stop the flow of coolant in the block cooling circuit,', 'determining whether recirculated exhaust gases are to be cooled, and', 'in response to sensors within the cooling system, activating an auxiliary coolant pump to pass coolant to the EGR cooler via a bypass of the block coolant circuit coupled to a connecting line upstream of the main coolant pump, wherein the coolant bypasses said main pump., 'at least one EGR cooler, the EGR cooler connected at least to a heat exchanger circuit, the method comprising2. The method of claim 1 , further comprising operating the block coolant circuit in a no flow status during a warm-up phase of the engine following an engine cold start.3. The method of claim 1 , wherein a direction of coolant flow through the bypass line relative to an inherent direction of flow is reversed when the block coolant ...

Methods and systems for a ventilating arrangement

Methods and systems are provided for a ventilation arrangement. In one example, a system may include a compact ventilation arrangement arranged within a space between an intake manifold and a cylinder head. A pump of the ventilation arrangement arrange adjacent the cylinder head.

Lubrication system for an internal combustion engine, and method for lubrication

Embodiments for a lubrication system for an internal combustion engine are provided. In one example, a lubrication system for an internal combustion engine comprises a lubricant circuit, a radiator for cooling the lubricant, a heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator, and a valve for switching over the lubricant circuit between the radiator and the heat accumulator. In this way, the oil may be rapidly heated during cold engine start conditions.

ASSEMBLED TURBINE HOUSING

An exhaust gas turbine is provided. The exhaust gas turbine includes a first turbine housing part having insulating material extending along an interior surface and a second turbine housing part having insulating material extending along an interior surface, the second turbine housing part coupled to the first turbine housing part to form a volute directing exhaust gas to a turbine wheel. 1. A turbine housing , made from cast metal , for a turbocharger , provided with an insulating material for protection against high temperatures of an exhaust gas flow , comprising:a flow inlet duct;a turbine wheel housing which encloses a turbine wheel and is connected to the flow inlet duct; anda flow outlet duct which is connected to the flow inlet duct;wherein an exhaust gas flow path extends through the flow inlet duct, through the turbine wheel housing and through the flow outlet duct and the exhaust gas flow path has a wall which is adjacent to the exhaust gas flow; andwherein the turbine housing comprises at least two interconnected housing parts in which is formed in each case a region of the exhaust gas flow path, wherein each exhaust gas flow path region includes a section of the wall which is adjacent to the exhaust gas flow and the insulating material is provided along the exhaust gas flow path on the exhaust gas flow-facing side of the wall which is adjacent to the exhaust gas flow.2. The turbine housing as claimed in claim 1 , wherein the turbine wheel housing encloses the turbine wheel in a spiral profile.3. The turbine housing as claimed in claim 1 , wherein the exhaust gas flow path has at least one branch.4. The turbine housing as claimed in claim 3 , wherein the exhaust gas flow path has a branch in the flow inlet duct and a branch in the flow outlet duct claim 3 , and the branch in the flow inlet duct is fluidically interconnected with the branch in the flow outlet duct claim 3 , bypassing the turbine wheel housing.5. The turbine housing as claimed in claim 1 , ...

COOLING ARRANGEMENT FOR INTERNAL COMBUSTION ENGINES

A cooling arrangement for an internal combustion engine is described, with a coolant balancing tank which is capable of being filled with coolant and the inlet side of which is connected via a first venting line to an internal combustion engine and/or via a second venting line to a cooler for cooling the coolant, and the outlet side of which is connected via a coolant return line to the inlet side of a pumping device for pumping the coolant through the internal combustion engine. The cooling arrangement has, furthermore, a flow control unit for variably limiting the coolant volume flow in the venting line.

Cooling system of an internal combustion engine of a motor vehicle

An internal combustion engine of a motor vehicle is provided. The internal combustion engine includes a coolant, a liquid/gas heat exchanger, a coolant-temperature-dependent control element, an equalizing tank, fluidic connections between the components, and a coolant pump. At least one direct or at least one activation-dependent fluidic connection or at least one force-transmitting connection is set up between a medium in the equalizing tank and a medium of at least one other media path or media circuit of the motor vehicle.

INTERNAL COMBUSTION ENGINE HAVING A SPARK PLUG

Methods and systems are provided for an internal combustion engine having at least one combustion chamber for burning a fuel mixture and a spark plug for performing spark ignition of the fuel mixture in the combustion chamber. The spark plug includes electrodes for generating an ignition spark at a location within the combustion chamber. Furthermore, the internal combustion engine includes an adjustment device for reducing a distance between the location of the ignition spark and an edge of the combustion chamber in the case of an increase in temperature of the internal combustion engine during operation. 1. A system , comprising:a combustion chamber of an internal combustion engine with a spark plug having electrodes to generate an ignition spark at a location within the combustion chamber; andan adjustment device including an expansion element coupled the spark plug that displaces the spark plug along a longitudinal axis of the spark plug to control a distance between the location of the ignition spark and an edge of the combustion chamber.2. The system of claim 1 , wherein the ignition spark ignites a mixture of air and fuel in the combustion chamber.3. The system of claim 1 , wherein the distance between the edge of the combustion chamber and the location of the spark is decreased when the engine is above a threshold temperature and increased when the engine is below the threshold temperature.4. The system of claim 3 , wherein the expansion element includes a material with a density anomaly.5. The system of claim 1 , wherein the adjustment device includes a running sleeve displaceably arranged in a housing of the internal combustion engine claim 1 , the running sleeve accommodating the spark plug.6. The system of claim 5 , wherein the expansion element is arranged between the running sleeve and the housing of the internal combustion engine.7. The system of claim 1 , wherein a spring element is provided for prestressing the adjustment device into a predefined ...

Method for heating the engine oil of an internal combustion engine and internal combustion engine for performing such a method

A method for operation of a lubrication circuit in an internal combustion engine is provided herein. The method comprises during a first operating condition, operating an oil agitation device to increase the turbulence of oil in the lubrication circuit, the oil agitation device positioned downstream of an oil pump in a supply line in fluidic communication with a lubricant receiving component.

Methods and systems for cooling arrangement

Methods and systems are provided for a cooling arrangement. In one example, a system comprises a separator arranged in a block coolant jacket. The separator fluidly separates an upper portion of the block coolant jacket from a lower portion of the block coolant jacket.

COOLING SYSTEM AND METHOD

A cooling system for an engine. The cooling system includes a flow control element including an inlet in fluidic communication with an outlet of a cylinder head water jacket, a first outlet port in fluidic communication with a heat exchanger, and a second outlet port in fluidic communication with an inlet of an engine block water jacket. 1. A cooling system in an engine comprising:a flow control element including an inlet in fluidic communication with an outlet of a cylinder head water jacket, a first outlet port in fluidic communication with a heat exchanger, and a second outlet port in fluidic communication with an inlet of an engine block water jacket.2. The cooling system of claim 1 , where the flow control element adjusts coolant flow through the first and second outlet ports based on coolant temperature claim 1 , the cooling system without a bypass around the heat exchanger claim 1 , the bypass from the outlet of the cylinder head water jacket to the inlet of the engine block water jacket.3. The cooling system of claim 1 , where the flow control element increases coolant flow through the first outlet port and decreases coolant flow through the second outlet port in response to an increase in coolant temperature.4. The cooling system of claim 1 , where the flow control element is controlled by a controller.5. The cooling system of claim 1 , where the flow control element comprises a thermostat and a valve claim 1 , the valve adjusting coolant flow to at least one of the inlet of the engine block water jacket and the inlet of the heat exchanger and the thermostat adjusting coolant flow to the inlet of the heat exchanger.6. The cooling system of claim 5 , where the thermostat includes a fourth outlet port and the valve adjusts coolant flow to the inlet of the engine block water jacket and the inlet of the heat exchanger.7. The cooling system of claim 5 , where the outlet of the cylinder head water jacket includes a first outlet port in direct fluidic ...

Supercharged internal combustion engine with compressor

Methods and systems are provided for a turbocharger. In one example, the turbocharger may include one or more cooling devices for cooling a compressor. The cooling devices may include a ventilation system arranged in a compressor impeller and shaft, the ventilation system configured to allow ambient air to flow into the shaft without being compressed.

Cooling arrangement for internal combustion engines

A cooling arrangement for an internal combustion engine is described, with a coolant balancing tank which is capable of being filled with coolant and the inlet side of which is connected via a first venting line to an internal combustion engine and/or via a second venting line to a cooler for cooling the coolant, and the outlet side of which is connected via a coolant return line to the inlet side of a pumping device for pumping the coolant through the internal combustion engine. The cooling arrangement has, furthermore, a flow control unit for variably limiting the coolant volume flow in the venting line.

Internal combustion engine having an oil circuit and method for operating such an internal combustion engine

A method for operating an engine is provided. The method comprises adjusting an oil pressure in an oil circuit, the oil circuit including a pump in fluidic communication with a hydraulically adjustable cam follower and switching the hydraulically adjustable cam follower into a connected state to a disconnected in response to the oil pressure adjustment.

Liquid-cooled internal combustion engine with selector guide valve, and method for controlling selector guide valve of internal combustion engine of said type

The invention relates to a liquid-cooled internal combustion engine with a selector guide valve, and a method for controlling the selector guide valve of an internal combustion engine of said type. A selector guide valve in cooling system of an internal combustion engine is provided. The selector guide valve includes a first control drum independently rotatable and including an inlet receiving engine coolant from a pump and a plurality of coolant openings extending through the first control drum and a second control drum independently rotatable, circumferentially surrounding the first control drum, and including a plurality of coolant openings extending through the second control drum.

APPLIED-IGNITION, LIQUID-COOLED INTERNAL COMBUSTION ENGINE WITH COOLED CYLINDER HEAD

Methods and systems are provided for thermally insulating an integrated exhaust manifold for a cylinder head of an applied-ignition, liquid-cooled internal combustion engine. In one example, a method may include regional insulation at a collection point where individual exhaust lines and/or partial exhaust lines merge to form an overall exhaust line within the cylinder head. The regional insulation may be formed integrally with a seal and coupled to an outlet flange of the cylinder head and may include a series of tongue-like projections that extend from the cylinder head outlet flange toward the cylinder exhaust lines. 1. An applied-ignition , liquid-cooled internal combustion engine comprising at least one cylinder head with at least two cylinders , in whicheach cylinder has at least one outlet opening for the discharge of the exhaust gases via an exhaust-gas discharge system, each outlet opening being adjoined by an individual exhaust line and the individual exhaust lines of at least two cylinders merging within the cylinder head at a collection point to form an overall exhaust line thus forming an integrated exhaust manifold, which overall exhaust line emerges from an outlet flange of the cylinder head, andat least one coolant jacket which is integrated in the cylinder head is provided for forming a liquid-type cooling arrangement, andthe exhaust manifold integrated in the cylinder head is, at an exhaust-gas side, provided at least regionally with thermal insulation.2. The applied-ignition claim 1 , liquid-cooled internal combustion engine of claim 1 , wherein the overall exhaust line of the exhaust manifold integrated in the cylinder head is claim 1 , at the exhaust-gas side claim 1 , provided at least regionally with thermal insulation.3. The applied-ignition claim 1 , liquid-cooled internal combustion engine of claim 1 , wherein the collection point of the integrated exhaust manifold in the cylinder head is claim 1 , at the exhaust-gas side claim 1 , provided ...

CONTROLLING THE POSITION OF TURBINE GUIDE VANES AND OF A COOLANT FLOW

Methods and systems are provided for a turbocharger system. In one example, a system comprises an actuator configured to adjust a position of a plurality of guide vanes and a position of a coolant valve configured to adjust coolant flow through a turbine coolant jacket or a compressor coolant jacket. 1. A system , comprising:a turbocharger comprising an actuator configured to adjust a position of a plurality of guide vanes and a position of a turbocharger coolant valve.2. The system of claim 1 , wherein the actuator is the only actuator configured to adjust the position of the plurality of guide vanes and the position of the turbocharger coolant valve.3. The system of claim 1 , wherein a guide vane of the plurality of guide vanes is mechanically coupled to the actuator via a first lever claim 1 , and wherein the turbocharger coolant valve is mechanically coupled to the actuator via a second lever.4. The system of claim 1 , wherein the actuator is electrically driven.5. The system of claim 1 , wherein the actuator is hydraulically driven.6. The system of claim 1 , wherein the actuator is driven via a vacuum.7. The system of claim 1 , wherein the turbocharger coolant valve controls coolant flow through one or a turbine cooling jacket or a compressor cooling jacket.8. A turbocharger system claim 1 , comprising:an actuator configured to adjust a position of a plurality of guide vanes and a position of a turbine coolant valve.9. The turbocharger of claim 8 , wherein the turbine coolant valve is opened once the plurality of guide vanes are moved to a threshold open position.10. The turbocharger of claim 8 , wherein a first lever mechanically couples at least one guide vane of the plurality of guide vanes to the actuator claim 8 , and wherein a second lever mechanically couples the turbine coolant valve to the actuator.11. The turbocharger of claim 8 , wherein the actuator claim 8 , the plurality of guide vanes claim 8 , and the turbine coolant valve are configured to ...

Liquid-cooled internal combustion engine comprising a cylinder block, and method for producing an associated cylinder block

Methods and system are provided for a cooling arrangement of an engine. In one example, the cooling arrangement may include first and second cooling ducts, where the second cooling ducts are arranged in gaps formed between adjacent cylinders and the first ducts are arranged outside of the gaps of the adjacent cylinders.

TURBINE HOUSING

The internal combustion engine is provided which may include a cylinder head, a turbine, and a turbine housing. The turbine housing may include an exhaust gas passage, at least one coolant fluid passage, and a wall between the passages. The wall may have a first area (A) disposed to absorb heat from an exhaust flow passing through the exhaust gas passage, and a second area (A) disposed to transfer heat from the wall to be absorbed by a coolant fluid flow passing through the at least one coolant fluid passage, wherein the following applies: A/A≦1.2. 1. An internal combustion engine having at least one cylinder head and having at least one turbine comprising: an exhaust gas passage;', 'at least one coolant fluid passage;', [{'sub': 'exhaust', 'a first area (A) disposed to absorb heat from an exhaust flow passing through the exhaust gas passage, and'}, {'sub': 'coolant', 'a second area (A) disposed to transfer heat from the wall to be absorbed by a coolant fluid flow passing through the at least one coolant fluid passage; and'}, {'sub': coolant', 'exhaust, 'wherein the following applies: A/A≦1.2.'}], 'a wall between the exhaust gas passage and the at least one coolant fluid passage having], 'a turbine housing including2. The internal combustion engine of claim 1 , wherein the following applies: A/A≦0.5.3. The internal combustion engine of claim 1 , wherein the turbine housing the exhaust gas passage and the at least one coolant fluid passage is a unitary component cast as one piece.4. The internal combustion engine of claim 1 , wherein the at least one coolant fluid passage runs claim 1 , at least in sections claim 1 , in looped fashion around an axis upon which an impeller is rotatable.5. The internal combustion engine of claim 1 , wherein the at least one coolant fluid passage is spaced apart from said exhaust gas passage and offset to one side thereof in a direction substantially parallel with an axis upon which an impeller is rotatable.6. The internal combustion ...

219-0200 Advanced thermostat system for an internal combustion engine with boost pressure depending control function

Methods and systems are provided for a valve for controlling the flow of a fluid medium in a coolant circuit of an internal combustion engine. The valve is configured to react to the temperature of the coolant via an expansion element and to the charge pressure in the intake tract via a pressure-sensitive actuator. 1. A system , comprising:a valve configured to adjust a flow of a fluid in a coolant circuit of an engine, the valve comprising an expansion element coupled to a transmission pin to adjust the flow of the fluid through the valve based on a temperature of the fluid, wherein the transmission pin is further coupled to a pressure-regulated actuator, the transmission pin actuated based on a charge pressure at the pressure-regulated actuator.2. The system of claim 1 , wherein the pressure-regulated actuator is coupled to a variable pressure region via a connecting line.3. The system of claim 1 , wherein the expansion element comprises wax.4. The system of claim 1 , wherein the valve includes a first connection claim 1 , a second connection claim 1 , and a third connection claim 1 , wherein the first connection is an inlet for admitting fluid into the valve claim 1 , wherein the second connection and the third connection are outlets configured to expel fluid out of the valve.5. The system of claim 4 , wherein an opening of the second connection and the third connection are based on a combination of the temperature of the fluid and the charge pressure at the pressure-regulated actuator.6. The system of claim 1 , further comprising a delaying element configured to delay a pressure-drop of the pressure-regulated actuator in response to the temperature of the fluid being greater than an upper threshold temperature.7. The system of claim 1 , wherein the valve comprising a first working position claim 1 , a second working position claim 1 , a third working position claim 1 , a fourth working position claim 1 , a fifth working position claim 1 , and a sixth working ...

INTERNAL COMBUSTION ENGINE WITH A LUBRICATION SYSTEM AND METHOD FOR PRODUCING AN INTERNAL COMBUSTION ENGINE

A lubrication system in an internal combustion engine is provided. The lubrication system includes a crankshaft bearing supporting a crankshaft, a supply line including an outlet flowing oil to the crankshaft bearing and an inlet receiving oil from an oil gallery, and thermal insulation at least partially surrounding at least a portion of an inner wall of the supply line and/or the oil gallery. 1. An internal combustion engine comprising:a cylinder head;a cylinder block connected to the cylinder head, the cylinder block including an upper crankcase portion receiving a crankshaft and a bearing; andan oil circuit including oil-carrying lines supplying the bearing with oil, the oil-carrying lines including an oil gallery connected to a supply line and a pump, the supply line flowing oil to the bearing, at least a portion of an inner wall of the supply line including thermal insulation.2. The internal combustion engine of claim 1 , where the thermal insulation includes a polymeric material.3. The internal combustion engine of claim 1 , where the thermal insulation includes an oxide layer.4. The internal combustion engine of claim 1 , where the thermal insulation includes a composite material.5. The internal combustion engine of claim 1 , where the oil gallery includes at least a portion having thermal insulation.6. The internal combustion engine of claim 1 , further comprising a second bearing and a second supply line flowing oil to the second bearing coupled to the oil gallery.7. The internal combustion engine of claim 1 , further comprising a heating apparatus included in the oil circuit claim 1 , where inner walls of oil-carrying lines extending from the heating apparatus to the bearing including thermal insulation claim 1 , at least in sections.8. The internal combustion engine of claim 1 , where at least a portion of an inner wall of at least one of the oil-carrying lines is integrated in the cylinder block and/or cylinder head and is lined claim 1 , at least in ...

METHODS AND SYSTEMS FOR A BLOW-OFF LINE

Methods and systems are provided for a close-coupled aftertreatment device. In one example, a system may include an engine comprising separate first and second overall exhaust lines, where a blow-off line branches off of the second overall exhaust line, and where the close-coupled aftertreatment device is arranged in the blow-off line and configured to receive exhaust gases during at least a cold-start of the engine. 1. A supercharged , applied-ignition internal combustion engine having three cylinders in an in-line arrangement , in which internal combustion engine comprises:each cylinder comprising at least one inlet opening shaped to admit charge air from an intake system and at least two outlet openings shaped to discharge exhaust gas to an exhaust-gas discharge system, each outlet opening being adjoined by separate exhaust linesat least one exhaust-gas turbocharger comprising a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system;the separate exhaust lines being shaped into first and second groups, and where the first and second groups comprise at least one exhaust line from each cylinder, where the exhaust lines of each group merge, in each case with the formation of two separate exhaust manifolds to form a first overall exhaust line and a second overall exhaust line separate from one another, wherethe first overall exhaust line of the first group opens into the turbine upstream of an exhaust-gas aftertreatment system, and where the second overall exhaust line of a second group opens into the intake system upstream of the compressor; anda blow-off line branching off the second overall exhaust line forming a first junction, the blow-off line comprising a shut-off element downstream of an accumulator shaped to capture hydrocarbons, the blow-off line merges with the first overall exhaust line at a second junction downstream of the shut-off element to form a third overall exhaust.2. The supercharged claim 1 , applied- ...

METHODS AND SYSTEMS FOR HIGH AND LOW TEMPERATURE COOLANT CIRCUITS

Methods and systems are provided for a cooling arrangement of a hybrid vehicle. In one example, a system comprises a high-temperature coolant circuit with a pressure line shaped to actuate an actuator of a pressure-actuated valve arranged in a low-temperature coolant circuit. 1. A system comprising:a high-temperature coolant circuit comprising a coolant pump; anda low-temperature coolant circuit comprising a pressure-actuated valve, the pressure-actuated valve shaped to adjust a coolant flow therethrough based on a pressure directly downstream of the coolant pump.2. The system of claim 1 , further comprising a pressure line coupling a portion of the high-temperature coolant circuit to the pressure-actuated valve claim 1 , wherein the portion is directly downstream of the coolant pump.3. The system of claim 2 , wherein the pressure line is fluidly sealed from outlet ports of the pressure-actuated valve.4. The system of claim 2 , wherein coolant in the pressure line does not enter the low-temperature coolant circuit.5. The system of claim 1 , wherein the coolant pump is fluidly coupled to a first cylinder head coolant jacket and a turbocharger claim 1 , the first cylinder head coolant jacket being arranged on an exhaust side of a cylinder head adjacent to a second cylinder head coolant jacket arranged on an intake side of the cylinder head.6. The system of claim 5 , wherein the second cylinder head coolant jacket receives coolant from a cylinder block coolant jacket.7. The system of claim 1 , wherein the low-temperature coolant circuit comprises a first heat exchanger for an engine and a second heat exchanger for an additional torque device.8. The system of claim 7 , wherein a thermostat valve adjusts coolant flow to the first heat exchanger and where the pressure-actuated valve adjusts coolant flow to the second heat exchanger.9. The system of claim 8 , further comprising a charge-air cooler in the low-temperature coolant circuit claim 8 , wherein the pressure- ...

INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS AFTERTREATMENT SYSTEM AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

An exhaust system for an internal combustion engine is provided. The exhaust system includes an exhaust manifold receiving exhaust gas from a cylinder, an emission control device positioned downstream of the exhaust manifold, an electric heating device positioned in an exhaust line upstream of the emission control device and downstream of the exhaust manifold, the electric heating device including a frame at least partially surrounding a heating element, and an adjustment device configured to, during operation of the internal combustion engine, adjust the drag generated by the electric heating device in an exhaust gas flow through the exhaust line.

LIQUID-COOLED INTERNAL COMBUSTION ENGINE HAVING EXHAUST-GAS TURBOCHARGING

A thermosiphon system in an engine is provided herein. The thermosiphon system includes a coolant channel traversing a bearing housing, the bearing housing included in a bearing coupled to a shaft mechanically coupled to a turbine and a compressor in a turbocharger, a ventilation vessel in fluidic communication with at least one coolant passage traversing at least one of a cylinder head and a cylinder block in the engine, the at least one coolant passage included in a cooling circuit, and a thermosiphon coolant line having an inlet in fluidic communication with an outlet of the coolant channel and an inlet of the ventilation vessel, the inlet positioned vertically below an interface between liquid and vapor coolant in the ventilation vessel. 1. A thermosiphon system in an engine comprising:a coolant channel traversing a bearing housing, the bearing housing included in a bearing coupled to a shaft mechanically coupled to a turbine and a compressor in a turbocharger;a ventilation vessel in fluidic communication with at least one coolant passage traversing at least one of a cylinder head and a cylinder block in the engine, the at least one coolant passage included in a cooling circuit; anda thermosiphon coolant line having an inlet in fluidic communication with an outlet of the coolant channel and an inlet of the ventilation vessel, the inlet positioned vertically below an interface between liquid and vapor coolant in the ventilation vessel.2. The thermosiphon system of claim 1 , where a vertical height continuously increases in a downstream direction along a length of the thermosiphon coolant line.3. The thermosiphon system of claim 1 , further comprising a second thermosiphon coolant line including an inlet in fluidic communication with the ventilation vessel and an inlet of a pump included in the cooling circuit.4. The thermosiphon system of claim 3 , where an outlet of the pump is in fluidic communication with the at least one coolant passage.5. The thermosiphon ...

INTERNAL COMBUSTION ENGINE COMPRISING A LIQUID COOLING SYSTEM AND OIL SUPPLY AND METHOD FOR OPERATING SUCH AN INTERNAL COMBUSTION ENGINE

An internal combustion engine is provided. The internal combustion engine includes an oil circuit and a pump in fluidic communication with a supply line and at least one lubricant receiving component and a liquid cooling system including a coolant circuit having an oil pressure actuated coolant valve and a coolant valve control line in fluidic communication with the pump and having a first configuration in which coolant may flow therethrough and a second configuration in which coolant is inhibited from flowing therethrough, the first and second configurations triggered in response to a change in oil pressure in the coolant valve control line.

METHOD FOR HEATING THE ENGINE OIL OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE FOR PERFORMING SUCH A METHOD

A method for operation of a lubrication circuit in an internal combustion engine is provided herein. The method comprises during a first operating condition, operating an oil agitation device to increase the turbulence of oil in the lubrication circuit, the oil agitation device positioned downstream of an oil pump in a supply line in fluidic communication with a lubricant receiving component. 1. A method for operation of a lubrication circuit in an internal combustion engine comprising:during a first operating condition, operating an oil agitation device to increase the turbulence of oil in the lubrication circuit, the oil agitation device positioned downstream of an oil pump in a supply line in fluidic communication with a lubricant receiving component.2. The method of claim 1 , where the oil agitation device is a hydrodynamic retarder claim 1 , and where the first operation condition is when the oil is below a predefined threshold temperature.3. The method of claim 1 , where the first operating condition is subsequent to start-up operation in the engine when the engine is below a predetermined threshold temperature.4. The method of claim 1 , where the first operating conditions is an overrun condition in which there is no power demand on the internal combustion engine requested by a driver.5. The method of claim 1 , further comprising during a second operating condition claim 1 , discontinuing operation of the oil agitation device.6. The method of claim 5 , where the second operating condition is when the oil temperature exceeds a predefined temperature.7. The method of claim 5 , where the second operating conditions is when the oil temperature exceeds a predefined temperature for a predetermined length of time.8. The method of claim 1 , further comprising during the first operating condition inhibiting operation of an oil cooler positioned upstream of the oil agitation device and downstream of the oil pump.9. A lubrication circuit for an internal combustion ...

Methods and systems for a blow-off line

Methods and systems are provided for a close-coupled aftertreatment device. In one arrangement, a system may include an engine comprising separate first and second overall exhaust lines, where a blow-off line branches off of the second overall exhaust line, and where the close-coupled aftertreatment device is arranged in the blow-off line and configured to receive exhaust gases during at least a cold-start of the engine.

LIQUID COOLED INTERNAL COMBUSTION ENGINE WITH COOLANT CIRCUIT, AND METHOD FOR OPERATION OF THE LIQUID COOLED INTERNAL COMBUSTION ENGINE

A liquid cooled internal combustion engine having a bypass line with a controllable shut off element so that coolant can bypass the cylinder head in certain engine operating conditions. The bypass line branches off from the coolant circuit upstream of the cylinder head and returns to the coolant circuit downstream of the cylinder head. 1. A liquid cooled internal combustion engine comprising:at least one cylinder head;a coolant circuit comprising at least one coolant jacket integrated into the cylinder head, a feed line for supplying coolant to the coolant jacket, a discharge line for discharging the coolant from the coolant jacket, and a return line having a heat exchanger, the return line having one end coupled to the discharge line and a second end in communication with the feed line; anda bypass line having a shut off element, the bypass line connects the feed line to the discharge line to bypass the cylinder head when the shut off element is in an open state.2. The liquid cooled internal combustion engine of claim 1 , wherein the shut off element is continuously adjustable.3. The liquid cooled internal combustion engine of claim 1 , wherein the shut off element can be switched in a two stage fashion.4. The liquid cooled internal combustion engine of claim 1 , wherein the shut off element is a shut off element that can be controlled by means of an engine controller.5. The liquid cooled internal combustion engine of claim 4 , wherein the shut off element can be controlled as a function of a coolant temperature.6. The liquid cooled internal combustion engine of claim 5 , wherein the shut off element can be further controlled as a function of a component temperature.7. The liquid cooled internal combustion engine of claim 6 , wherein the component temperature is a cylinder head temperature.8. The liquid cooled internal combustion engine of claim 1 , wherein a pump for delivering the coolant is provided in the coolant circuit.9. A method for operating a liquid ...

Internal combustion engine having a spark plug

Methods and systems are provided for an internal combustion engine having at least one combustion chamber for burning a fuel mixture and a spark plug for performing spark ignition of the fuel mixture in the combustion chamber. The spark plug includes electrodes for generating an ignition spark at a location within the combustion chamber. Furthermore, the internal combustion engine includes an adjustment device for reducing a distance between the location of the ignition spark and an edge of the combustion chamber in the case of an increase in temperature of the internal combustion engine during operation.

ENGINE COOLING ARRANGEMENT

Systems are provided for a cooling arrangement of an engine. In one example, a system includes a first coolant passage and a second coolant passage arranged in a cylinder bridge between directly adjacent cylinders, wherein the first coolant passage and the second coolant passage are separated from one another.

LIQUID-COOLED INTERNAL COMBUSTION ENGINE COMPRISING A CYLINDER BLOCK, AND METHOD FOR PRODUCING AN ASSOCIATED CYLINDER BLOCK

Methods and system are provided for a cooling arrangement of an engine. In one example, the cooling arrangement may include first and second cooling ducts, where the second cooling ducts are arranged in gaps formed between adjacent cylinders and the first ducts are arranged outside of the gaps of the adjacent cylinders.

CYLINDER HEAD WITH OIL RETURN

Engine oil may pool in various locations in the cylinder head near the valves and underneath the camshaft. Rather than directly conducting the oil to the oil return passages, the oil is conducted to a surface proximate the exhaust ducts before being conducted to the oil return passage so that the oil is readily warmed up during a cold start by the contact with a surface in the cylinder head proximate exhaust ducts. The provision of such a surface proximate exhaust ducts is facilitated by the integrated exhaust manifold design in which the exhaust ducts are merged prior to exiting the cylinder head. By rapidly heating the oil, the oil's viscosity decreases, thereby reducing friction and improving fuel efficiency.

Integrated Engine Thermal Management

The invention relates to a cooling strategy for an internal combustion engine (1) which has at least one cylinder head (2) and an associated cylinder block (3). A coolant flows in a coolant circuit (4), with at least one control element (6, 7, 8, 9) being assigned to the coolant circuit (4). During a warmup of the internal combustion engine, in successive phases, the coolant flow is conducted to separate cooling regions by the control elements (6, 7, 8, 9), wherein in an operating mode at operating temperature which follows the warmup, the coolant flow is conducted to separate cooling regions by the control elements (6, 7, 8, 9) taking into consideration the operating states of the internal combustion engine.

HYBRID COOLING SYSTEM OF AN INTERNAL COMBUSTION ENGINE

A hybrid cooling system for an engine is provided. The system comprises a block oil cooling circuit, a head coolant cooling circuit, the head and block circuits having a common heat exchanger. The system also includes a flow device in the head cooling circuit for preventing coolant flow in the head cooling circuit at least during a first phase of a warm-up phase of the internal combustion engine, a delivery device in the block cooling circuit which delivers engine oil constantly under pressure through the block cooling circuit to bearing points in a cylinder block and to bearing points in a cylinder head, and a control element arranged in a control line to reduce the delivery capacity of the delivery device through the block cooling circuit at least during the first phase of the warm-up phase. In this way, heat transfer in the common heat exchanger may be substantially prevented.

Lubrication system for an internal combustion engine, and method for lubrication

Embodiments for a lubrication system for an internal combustion engine are provided. In one example, a lubrication system for an internal combustion engine comprises a lubricant circuit, a radiator for cooling the lubricant, a heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator, and a valve for switching over the lubricant circuit between the radiator and the heat accumulator. In this way, the oil may be rapidly heated during cold engine start conditions.

INTERNAL COMBUSTION ENGINE HAVING AN OIL CIRCUIT AND METHOD FOR OPERATING SUCH AN INTERNAL COMBUSTION ENGINE

A method for operating an engine is provided. The method comprises adjusting an oil pressure in an oil circuit, the oil circuit including a pump in fluidic communication with a hydraulically adjustable cam follower and switching the hydraulically adjustable cam follower into a connected state to a disconnected in response to the oil pressure adjustment.

OIL DRAIN SYSTEM BYPASS

A system and method are provided for increasing heating of engine oil during a cold start. In one example, engine oil is returned directly to the oil pump inlet, thus bypassing the sump. In this way, a smaller volume of oil receives more heat and is used for lubricating engine components during a cold start, thus providing reduced friction earlier than otherwise possible.

METHOD FOR REDUCING THE PARTICLE EMISSIONS OF A SPARK-IGNITION INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION, AND INTERNAL COMBUSTION ENGINE FOR CARRYING OUT SUCH A METHOD

A method for reducing the particle emissions of a spark-ignition, direct-injection internal combustion engine is provided. The method comprises operating at least one cylinder superstoichiometrically, responsive to an injector coking level and sufficiently high cylinder temperature, for a duration to increase oxidation of coking residues.

HEATING ENGINE OIL IN AN INTERNAL COMBUSTION ENGINE

The disclosure relates to an internal combustion engine having a cylinder head and cylinder block serving as an upper crankcase portion for holding a crankshaft in multiple bearings. The engine has an oil pump for feeding engine oil to the cylinder head prior to supplying the multiple bearings in the cylinder block.

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH COMPRESSOR

Methods and systems are provided for a turbocharger. In one example, the turbocharger may include one or more cooling devices for cooling a compressor. The cooling devices may include a ventilation system arranged in a compressor impeller and shaft, the ventilation system configured to allow ambient air to flow into the shaft without being compressed. 1. A supercharged internal combustion engine comprising:an intake system for the supply of a charge-air flow, an exhaust-gas discharge system for the discharge of exhaust gas, at least one compressor arranged in the intake system, which compressor comprises at least one impeller which is mounted, in a compressor housing, on a rotatable shaft, and a bearing housing for the accommodation and mounting of the rotatable shaft of the at least one compressor, and where the rotatable shaft of the at least one compressor is equipped with a ventilation system which comprises at least one duct which is formed so as to be open to the intake system upstream of the at least one compressor and from which at least one line branches off which emerges from the shaft between the at least one compressor and the bearing housing.2. The supercharged internal combustion engine of claim 1 , wherein the at least one duct opens out into the intake system at a compressor-side end side of the shaft.3. The supercharged internal combustion engine of claim 1 , wherein the at least one duct is of rectilinear form and is coaxial with the shaft.4. The supercharged internal combustion engine of claim 1 , wherein the at least one line is of rectilinear form and extends in a radially outward direction perpendicular to the duct and the shaft.5. The supercharged internal combustion engine of claim 1 , wherein the shaft has claim 1 , at the impeller side claim 1 , a thickened shaft end for accommodating the at least one impeller.6. The supercharged internal combustion engine of claim 1 , wherein the at least one compressor which can be driven by means of an ...

DISENGAGEABLE COOLANT PUMP FOR ENGINE

A coolant pump includes a drive wheel, a driven wheel, and a coupling-control pump. The driven wheel is connected to a coolant impeller and coupled by a variable degree to the drive wheel, the degree of coupling responsive to an amount of fluid confined between the drive wheel and the driven wheel. The coupling-control pump is configured to change the amount of fluid confined between the drive wheel and the driven wheel based on a variable control signal. 1. A coolant pump comprising:a drive wheel;a driven wheel connected to a coolant impeller and coupled by a variable degree to the drive wheel, the degree of coupling responsive to an amount of fluid confined between the drive wheel and the driven wheel; anda coupling-control pump configured to change the amount of fluid confined between the drive wheel and the driven wheel based on a variable control signal.2. The coolant pump of wherein the variable control signal is a continuously variable control signal.3. The coolant pump of wherein the coupling-control pump is configured to withdraw enough fluid from between the drive wheel and the driven wheel to substantially decouple the drive wheel from the driven wheel.4. The coolant pump of wherein the fluid confined between the drive wheel and the driven wheel is confined within a shear chamber claim 1 , the coolant pump further comprising a storage chamber for fluid not confined in the shear chamber claim 1 , and a conduit linking the shear chamber claim 1 , the storage chamber claim 1 , and the coupling-control pump.5. The coolant pump of wherein the conduit claim 4 , the storage chamber claim 4 , and the coupling-control pump are arranged inside the drive wheel.6. The coolant pump of wherein the coupling-control pump is configured to pump the fluid through the conduit in a first direction claim 4 , and wherein rotational forces from the drive wheel move the fluid in a second direction opposite the first.7. The coolant pump of wherein the rotational forces include ...

COOLANT JACKETS FOR AN INTERNAL COMBUSTION ENGINE AND METHOD OF CONTROL

An internal combustion engine is provided. The internal combustion engine includes a cylinder block having a cooling jacket and a cylinder head having two cooling jackets. In one example, the internal combustion engine may be operated so as to reduce engine friction and emissions during cold engine starts.

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.

Methods and system for a coolant circuit valve

Methods and systems are provided for a coolant circuit. In one example, the coolant circuit comprises high and low-temperature radiators, where only one pump is configured to conduct coolant through the entire coolant circuit.

Liquid-cooled internal combustion engine and method for operating an internal combustion engine of said type

A liquid-cooling engine system is described with a coolant control device having an adjustable control element capable of independently controlling the flow of coolant through a cylinder head and cylinder block. The device contains a rotatable drum that can be rotated along its longitudinal axis to expose holes and thereby allows coolant circulation based on a temperature within the engine system. The coolant control device has three positions but may also be fine-tuned within each position to control the flow of coolant through the cylinder head and cylinder block in order to adjust the amount of heat extracted according to demand, which serves to control the liquid-type cooling circuit in a demand-dependent manner that accounts for the operating modes of the internal combustion engine.

Coolant jackets for an internal combustion engine and method of control

An internal combustion engine is provided. The internal combustion engine includes a cylinder block having a cooling jacket and a cylinder head having two cooling jackets. In one example, the internal combustion engine may be operated so as to reduce engine friction and emissions during cold engine starts.

Internal combustion engine with oil-cooled cylinder block and method for operating an internal combustion engine of said type

Embodiments for selectively filling a cylinder block cooling jacket with oil are provided. In one example, a control unit may be rotated among a plurality of working positions to open up and/or block flow of oil into and out of the cylinder block cooling jacket.

Cylinder head with oil return

Engine oil may pool in various locations in the cylinder head near the valves and underneath the camshaft. Rather than directly conducting the oil to the oil return passages, the oil is conducted to a surface proximate the exhaust ducts before being conducted to the oil return passage so that the oil is readily warmed up during a cold start by the contact with a surface in the cylinder head proximate exhaust ducts. The provision of such a surface proximate exhaust ducts is facilitated by the integrated exhaust manifold design in which the exhaust ducts are merged prior to exiting the cylinder head. By rapidly heating the oil, the oil's viscosity decreases, thereby reducing friction and improving fuel efficiency.

Internal Combustion Engine with Liquid Cooling

A system for providing cooling to at least one cylinder of an engine is disclosed. The system comprises at least one coolant jacket in a cylinder head arranged on an inlet side of a cylinder and at least one coolant jacket in the cylinder head arranged on an outlet side of the cylinder. The outlet-side coolant jacket may be part of a water cooling circuit, while the inlet-side coolant jacket may be part of oil circuit.

METHOD FOR WARMING AN INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE

The disclosure relates to a method for expediting warm up of an internal combustion engine cylinder block and engine oil utilizing an existing oil coolant circuit. A method for warming up an internal combustion engine with at least one cylinder, a cylinder block which is formed by an upper crankcase half mounted to a lower crankcase half, said lower crankcase half containing an oil sump which is fed, via a supply line, by a coolant jacket, an inlet side of said coolant jacket supplied in turn with oil via the oil sump by an oil pump, the method comprising: releasing oil from the coolant jacket via gravity to reduce a cooling capacity of the internal combustion engine. 1. A method for warming up an internal combustion engine with at least one cylinder , a cylinder block which is formed by an upper crankcase half mounted to a lower crankcase half , said lower crankcase half containing an oil sump which is fed , via a supply line , by a coolant jacket , an inlet side of said coolant jacket supplied in turn with oil via the oil sump by an oil pump , comprising:releasing oil from the coolant jacket via gravity to reduce a cooling capacity of the internal combustion engine.2. The method as claimed in claim 1 , wherein a quantity of heat removed from the cylinder block by oil cooling is controlled at least in part by the releasing of oil from the coolant jacket.3. The method as claimed in claim 1 , wherein the released oil is directed into the oil sump.4. The method as claimed in claim 1 , wherein the supply line is used as a line for releasing oil via gravity.5. The method as claimed in claim 1 , wherein at least one additional line is used to release oil via gravity claim 1 , and wherein said additional line is connected to the coolant jacket.6. The method as claimed in claim 5 , wherein the at least one additional line is a permanently open line which has a diameter D of D<3 mm.7. The method as claimed in claim 5 , wherein the at least one additional line is a ...

INJECTION VALVE FOR AN INTERNAL COMBUSTION ENGINE

The disclosure relates to an injection valve for an internal combustion engine of a motor vehicle, having a cooling device for cooling the injection valve. The mentioned cooling device is a thermosiphon cooling device, wherein the thermosiphon cooling device comprises a reservoir volume, and wherein the cooling element has a thermally conductive connection to the reservoir volume.

CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE

The invention relates to a cylinder head (1) which, at an assembly end-side (9), can be connected to a cylinder block, having a coolant jacket (2), which is at least partially integrated in the cylinder head (1), for an internal combustion engine having at least two cylinders, in which each cylinder has at least one outlet opening (3a, 3b) for discharging the exhaust gases out of the cylinder, with an exhaust-gas line (4a, 4b) adjoining each outlet opening (3a, 3b), the exhaust-gas lines (4a, 4b) of the at least two cylinders merging within the cylinder head (1) to form a combined exhaust-gas line (6), and the coolant jacket (2) having a lower coolant jacket (2a), which is arranged between the exhaust-gas lines (4a, 4b, 5, 6) and the assembly end-side (9) of the cylinder head (1), and an upper coolant jacket (2b), which is arranged on that side of the exhaust-gas lines (4a, 4b, 5, 6) which is situated opposite the lower coolant jacket (2a). It is intended to provide a liquid-cooled cylinder ...

REDUCTANT TANK AS A HEAT STORAGE DEVICE

A method for operating an engine system is provided. The method includes during a first operating condition, flowing oil from an oil sump to a heat exchanger attached to a reductant tank and transferring heat from oil flowing through the heat exchanger to reductant stored in the reductant tank. The method further includes during a second operating condition, flowing oil from the oil sump to the heat exchanger and transferring heat from the reductant stored in the reductant tank to oil flowing through the heat exchanger. 1. A method for heat management in a system of an internal combustion engine comprising:transferring oil via a first oil line and a second oil line from the internal combustion engine to a heat exchanger in contact with a urea tank through operation of an oil control valve connected fluidically to the first oil line and the second oil line; andin the heat exchanger, exchanging heat energy between the oil and a urea solution stored in the urea tank.2. The method of claim 1 , wherein the urea tank stores heat energy which is transferred from the oil to the urea solution when the temperature of the oil is higher than that of the urea solution.3. The method of claim 1 , wherein the urea tank releases heat energy by transferring energy from the urea solution to the oil when the temperature of the urea solution is higher than that of the oil.4. The method of claim 1 , wherein the urea tank has at least one recess in at least one side claim 1 , the heat exchanger is accommodated in the at least one recess of the urea tank.5. The method of claim 1 , wherein the heat exchanger is arranged on at least one outer side of the urea tank.6. The method of claim 1 , wherein a urea line claim 1 , in which at least one urea pump is arranged claim 1 , is arranged between the urea tank and an injection device for introducing the urea solution into an exhaust tract of the internal combustion engine claim 1 , wherein at least one branch line for returning the urea solution ...

COOLING SYSTEM OF AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE

An internal combustion engine of a motor vehicle is provided. The internal combustion engine includes a coolant, a liquid/gas heat exchanger, a coolant-temperature-dependent control element, an equalizing tank, fluidic connections between the components, and a coolant pump. At least one direct or at least one activation-dependent fluidic connection or at least one force-transmitting connection is set up between a medium in the equalizing tank and a medium of at least one other media path or media circuit of the motor vehicle. 1. A cooling system of an internal combustion engine of a motor vehicle , the cooling system comprising:a predetermined amount of coolant,at least one liquid/gas heat exchanger,at least one coolant-temperature-dependent control element,an equalizing tank for receiving some of the coolant in a coolant-temperature-dependent manner,connecting elements for producing fluidic connections, anda coolant pump,wherein at least one direct or at least one activation-dependent fluidic connection or at least one force-transmitting connection is set up between a medium in the equalizing tank and a medium of at least one other media path or media circuit of the motor vehicle.2. The cooling system as claimed in claim 1 , wherein the at least one other media path or media circuit is formed by an air intake region of the internal combustion engine.3. The cooling system as claimed in claim 1 , wherein the at least one other media path or media circuit is formed by an oil lubrication circuit of the motor vehicle.4. The cooling system as claimed in claim 1 , wherein the connection set up between the medium in the equalizing tank and the medium of the at least one other media path or media circuit contains an activatable non-return valve which is permeable in the direction of the equalizing tank.5. The cooling system as claimed in claim 1 , wherein the connection set up between the medium in the equalizing tank and the medium of the at least one other media path or ...

Internal combustion engine with cooled turbine

An internal combustion engine has a cylinder head with at least one cylinder and a cooled turbine. Each cylinder has at least one outlet opening adjoined by an exhaust line for discharging exhaust gases from the cylinder. The exhaust line issues into an inlet region transitioning into an exhaust gas-conducting flow duct of the turbine. The turbine has at least one rotor mounted on a rotatable shaft in a turbine housing. The turbine has at least one coolant duct which is integrated in the housing and which is delimited and formed by at least one wall of the housing to form a cooling arrangement. The at least one wall of the turbine housing that delimits the at least one coolant duct is provided, at least in regions, with a thermal insulation.

Controlling the position of turbine guide vanes and of a coolant flow

Methods and systems are provided for a turbocharger system. In one example, a system comprises an actuator configured to adjust a position of a plurality of guide vanes and a position of a coolant valve configured to adjust coolant flow through a turbine coolant jacket or a compressor coolant jacket.

Engine cooling arrangement

Systems are provided for a cooling arrangement of an engine. In one example, a system includes a first coolant passage and a second coolant passage arranged in a cylinder bridge between directly adjacent cylinders, wherein the first coolant passage and the second coolant passage are separated from one another.

Methods and systems for a control valve of a circuit

Methods and systems are provided for a control device for adjusting coolant flow. In one example, the control device may be shaped to receive charge air, engine coolant, and charge-air cooler coolant to adjust a flow of charge-air cooler coolant to a radiator.

Method for coating a bore and cylinder block of an internal combustion engine

A method of producing an enamel coating for a cylinder bore in a cylinder block of an internal combustion engine is provided. The method also provides for coating a cast iron gray cylinder block with an enamel coating.

Cylinder head for an internal combustion engine

A cylinder head for an internal combustion engine has at least two cylinders, each cylinder having an outlet opening for discharging the exhaust gases out of the cylinder, an assembly end side for connection to a cylinder block of the engine, an exhaust-gas line adjoining each outlet opening, the exhaust-gas lines of the at least two cylinders merging within the cylinder head to form a combined exhaust-gas line, and a coolant jacket interior to and at least partially integrated in the cylinder head, the coolant jacket made up of a lower coolant jacket and an upper coolant jacket, and at least one connection between the lower coolant jacket and the upper coolant jacket immediately adjacent the combined exhaust-gas line for allowing the passage of coolant.

INDEPENDENT COOLING OF CYLINDER HEAD AND BLOCK

Various systems are provided for liquid-cooling of an internal combustion engine. In one example, an internal combustion engine includes a cylinder head, a cylinder block coupled to the cylinder head, a first return line fluidically coupled to the cylinder head and to a coolant valve and including a heat exchanger configured to remove heat from coolant, a second return line fluidically coupled to the cylinder block and to the coolant valve, a bypass line branching off from the first return line and fluidically coupled to the coolant valve, and an originating supply line fluidically coupled to the cylinder head, the cylinder block, and the coolant valve, the originating supply line including a pump configured to supply coolant. The coolant valve is configured to control coolant flow through the coolant lines via rotational selection of one of a plurality of working positions. 1. A liquid-cooled internal combustion engine , comprising:at least one cylinder head including at least one integrated coolant jacket, the at least one integrated coolant jacket having at an inlet side a first supply opening and at an outlet side a first discharge opening, the first supply opening configured to receive coolant, the first discharge opening configured to discharge coolant;a cylinder block including at least one integrated coolant jacket, the at least one integrated coolant jacket having at the inlet side a second supply opening and at the outlet side a second discharge opening, the second supply opening configured to receive coolant, the second discharge opening configured to discharge coolant;a coolant valve;a first return line including a heat exchanger, the first return line connecting the first discharge opening to the coolant valve;a second return line connecting the second discharge opening to the coolant valvea supply line including a pump configured to deliver coolant to the first supply opening, the second supply opening, and the integrated coolant jackets, the supply ...

INTERNAL COMBUSTION ENGINE WITH OIL CIRCUIT AND OIL-LUBRICATED SHAFT BEARINGS

An internal combustion engine includes a cylinder head, a cylinder block serving as an upper crankcase half for holding a crankshaft in at least two crankshaft bearings, at least one further shaft mounted in at least two shaft bearings, an oil circuit with oil-conducting lines for supplying oil to at least two bearings, and an exhaust-gas recirculation arrangement. A heat conductor runs between at least one of the bearings and a thermally more highly loaded region of the internal combustion engine which, at least in the warm-up phase of the internal combustion engine, is at a higher temperature than the associated bearing. 1. An internal combustion engine comprising:a cylinder head;a cylinder block connected to the cylinder head to form at least one cylinder, the cylinder block providing an upper crankcase half for holding a crankshaft in at least two crankshaft bearings;at least one further shaft mounted in at least two shaft bearings;an oil circuit having oil-conducting lines configured to supply oil to at least one of the bearings;an exhaust-gas recirculation arrangement; andat least one heat conductor running between at least one of the bearings and at least one thermally more highly loaded region of the internal combustion engine which, at least in a warm-up phase of the internal combustion engine, is at a higher temperature than the at least one bearing.2. The internal combustion engine of claim 1 , wherein the oil circuit has a pump for delivering the oil claim 1 , the pump being connected via a supply line to a main oil gallery from which ducts lead to the at least two crankshaft bearings.3. The internal combustion engine of wherein each crankshaft bearing comprises bearing shells.4. The internal combustion engine of wherein each of the crankshaft bearings is a rolling bearing.5. The internal combustion engine of wherein the at least one further shaft is a camshaft which is mounted in the cylinder head in the at least two shaft bearings.6. The internal ...

Direct-injection, supercharged internal combustion engine with high-pressure fuel pump, and method for operating an internal combustion engine of said type

A direct-injection, supercharged internal combustion engine having at least one cylinder, in which each cylinder is equipped with a direct injection apparatus, a fuel supply system comprising a high-pressure side and a low-pressure side, and a high-pressure piston pump comprising a piston displaceable in translational fashion between a bottom dead center and a top dead center of a pressure chamber of variable volume. The displaceable piston jointly delimits the pressure chamber with variable volume in such a way that a displacement of the piston causes a change in the volume of the pressure chamber via actuation of least one movable actuation element.

LUBRICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR LUBRICATION

Embodiments for a lubrication system for an internal combustion engine are provided. In one example, a lubrication system for an internal combustion engine comprises a lubricant circuit, a radiator for cooling the lubricant, a heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator, and a valve for switching over the lubricant circuit between the radiator and the heat accumulator. In this way, the oil may be rapidly heated during cold engine start conditions. 1. A lubrication system for an internal combustion engine , comprising:an oil lubricant circuit;a radiator for cooling the lubricant;a piston cooling jet coupled in the oil lubricant circuit;a chemical heat accumulator arranged upstream of the engine for warming up the lubricant, the heat accumulator connected in parallel to the radiator; anda valve for switching over the lubricant circuit between the radiator and the heat accumulator.2. The lubrication system as claimed in claim 1 , wherein the engine is a turbocharged engine.3. The lubrication system as claimed in claim 1 , further comprising a pump arranged in the lubricant circuit for delivering the lubricant.4. The lubrication system as claimed in claim 1 , wherein oil passes from an oil gallery to the piston cooling jet.5. The lubrication system as claimed in claim 1 , wherein the lubricant circuit runs through the radiator in a normal mode and runs through the heat accumulator in a warming up mode.6. The lubrication system as claimed in claim 5 , wherein the heat accumulator is arranged on the lubricant circuit in such a way that the heat accumulator is charged by the lubricant in the normal mode.7. The lubrication system as claimed in claim 6 , wherein cooling performance of the radiator is substantially equal to charging capacity for the heat accumulator.8. The lubrication system as claimed in claim 1 , wherein the heat accumulator is arranged directly upstream of the ...

METHOD AND ARRANGEMENT FOR CONTROLLING TRANSMISSION OIL TEMPERATURE

A temperature control arrangement includes a heat exchanger which is fluidly connected via a transmission oil circuit to a transmission of the vehicle. A heat accumulator is fluidly connected to the transmission oil circuit and a control device is arranged in the transmission oil circuit. The control device subdivides the transmission oil circuit into an accumulator circuit containing the heat accumulator and a cooling circuit containing the heat exchanger. The heat accumulator alternately accumulates thermal energy from the transmission oil and delivers previously stored thermal energy to the transmission oil. The control device is configured to direct the transmission oil circulating within the transmission oil circuit at least partially to the heat exchanger and/or to the heat accumulator. 1. A temperature control arrangement for transmission oil of a vehicle , comprising:a heat exchanger fluidly connected to a transmission oil circuit of the transmission of the vehicle and configured to conduct thermal energy from the transmission oil to ambient air;a heat accumulator fluidly connected to the transmission oil circuit and configured to alternately absorb thermal energy from the transmission oil and to deliver previously stored thermal energy to the transmission oil; anda control device arranged in the transmission oil circuit by which the transmission oil circuit is subdivided into an accumulator circuit containing the heat accumulator and a cooling circuit containing the heat exchanger, the control device configured to alternately direct the transmission oil circulating within the transmission oil circuit to the cooling circuit and to the accumulator circuit.2. The temperature control arrangement of claim 1 , wherein the control device is configured to direct transmission oil through the heat accumulator in response to an oil temperature being less than a threshold and to direct transmission oil through the heat exchanger in response to the oil temperature being ...

METHOD AND SYSTEM FOR AN INTERNAL COMBUSTION ENGINE WITH LIQUID-COOLED CYLINDER HEAD AND LIQUID-COOLED CYLINDER BLOCK

Methods and systems are provided for separately providing liquid-cooling to a cylinder head and a cylinder block. In one example, a method includes selectively pumping coolant with a single pump to each of a first cylinder head coolant jacket and a cylinder block coolant jacket based on engine temperatures. The method further includes discharging coolant from the first cylinder head coolant jacket to a heating circuit line including a vehicle interior heater and discharging coolant from the cylinder block cooling jacket and back to the single pump. 1. An engine method , comprising:selectively pumping coolant with a single pump to each of a first cylinder head coolant jacket and a cylinder block coolant jacket based on engine temperatures;discharging coolant from the first cylinder head coolant jacket to a heating circuit line including a vehicle interior heater; anddischarging coolant from the cylinder block cooling jacket and back to the single pump.2. The method of claim 1 , wherein discharging coolant from the cylinder block coolant jacket includes selectively directing coolant to each of a radiator and a radiator bypass.3. The method of claim 1 , further comprising flowing coolant from the cylinder block coolant jacket directly to a second cylinder head coolant jacket claim 1 , the first cylinder head coolant jacket fluidly separate from the second cylinder head coolant jacket and fluidly separate from the cylinder block coolant jacket.4. The method of claim 1 , wherein selectively pumping coolant with the single pump includes closing a first shut-off element positioned between the single pump and a cylinder block to flow coolant only through the first cylinder head coolant jacket responsive to one or more of a cold-start condition or an engine temperature below a first threshold.5. The method of claim 4 , wherein selectively pumping coolant with the single pump includes pumping cooling only with the single pump and opening the first shut-off element to flow ...

METHODS AND SYSTEM FOR A COOLANT CIRCUIT VALVE

Methods and systems are provided for a coolant circuit. In one example, the coolant circuit comprises high and low-temperature radiators, where only one pump is configured to conduct coolant through the entire coolant circuit. 1. A system , comprisinga control valve for controlling the flow of a first fluid medium from a high-temperature coolant circuit to a low-temperature coolant circuit, wherein the control valve comprises a housing, a flow channel, an inlet for receiving the first fluid medium and an outlet for expelling the first fluid medium, a closure configured to open or close the flow channel, an access for at least one second fluid medium to flow and contact the closure, and a thermostat fluidly coupled to the flow channel, wherein the thermostat is arranged between the closure and the outlet, wherein the control valve comprises a first spring arranged between the closure and the thermostat and a second spring arranged between the thermostat and the outlet, wherein a second spring force presses against the first spring, wherein the closure is moved counter to a second spring pressure via a second fluid medium pressure, and the thermostat is configured to control an opening characteristic curve of the closure such that the closure closes the flow channel of the first fluid medium in a first working state and at least partially opens said flow channel in a second working state.2. The system of claim 1 , wherein the first fluid medium is a coolant of a high-temperature coolant circuit for a charge-air cooler for an internal combustion engine of a vehicle.3. The system of claim 1 , wherein the access for the second fluid medium has a fluid connection to an intake tract of an internal combustion engine.4. The system of claim 1 , wherein the control valve is configured to detect the temperature of the first fluid medium via the thermostat.5. The system of claim 1 , wherein the closure is configured such that claim 1 , in the first working state claim 1 , the ...

INTERNAL COMBUSTION ENGINE WITH COOLED TURBINE

An internal combustion engine has a cylinder head with at least one cylinder and a cooled turbine. Each cylinder has at least one outlet opening adjoined by an exhaust line for discharging exhaust gases from the cylinder. The exhaust line issues into an inlet region transitioning into an exhaust gas-conducting flow duct of the turbine. The turbine has at least one rotor mounted on a rotatable shaft in a turbine housing. The turbine has at least one coolant duct which is integrated in the housing and which is delimited and formed by at least one wall of the housing to form a cooling arrangement. The at least one wall of the turbine housing that delimits the at least one coolant duct is provided, at least in regions, with a thermal insulation. 1. An internal combustion engine having at least one cylinder head with a cooled turbine , the internal combustion engine comprising:at least one cylinder head having at least one cylinder, each cylinder having at least one outlet opening for discharging exhaust gases from the cylinder and each outlet opening being adjoined by an exhaust line; anda turbine having at least one rotor mounted on a rotatable shaft in a turbine housing, the turbine having, to form a cooling arrangement, at least one coolant duct integrated in the turbine housing being delimited and formed by at least one wall;wherein the at least one exhaust line of at least one cylinder issues into an inlet region, which transitions into an exhaust gas-conducting flow duct, of the turbine; andwherein the at least one wall that delimits the at least one coolant duct is provided, at least in regions, with thermal insulation.2. The internal combustion engine as claimed in claim 1 , wherein more than 50% of the at least one wall is provided with thermal insulation.3. The internal combustion engine as claimed in claim 1 , wherein more than 70% of the at least one wall is provided with thermal insulation.4. The internal combustion engine as claimed in claim 1 , wherein ...

METHOD FOR COATING A BORE AND CYLINDER BLOCK OF AN INTERNAL COMBUSTION ENGINE

A method of producing an enamel coating for a cylinder bore in a cylinder block of an internal combustion engine is provided. The method also provides for coating a cast iron gray cylinder block with an enamel coating. 1. A method for producing a coated bore of an internal combustion engine , said method comprising:producing a main body present in a blank;drilling out a bore and pre-machining the bore;applying an enamel coating to an inner surface of the bore; andpost-treating the coated bore, the enamel coating bonding to a base material of the bore metallurgically by phase formation.2. The method as claimed in claim 1 , wherein drilling out the bore and pre-machining the bore further comprise drilling out the bore to an oversize of 1 to 2 mm in diameter via finish-boring.3. The method as claimed in claim 1 , further comprising providing the bore with a roughness of Ra 6 to 7 μm on the inner surface thereof by turning spindles.4. The method as claimed in wherein applying the enamel coating further comprises applying the enamel coating to the inner surface as an aqueous enamel slip and drying the inner surface in a continuous furnace at T=80 to100° C. for 8 to 12 minutes.5. The method as claimed in claim 4 ,wherein the enamel coating is annealed together with a main body made of gray cast iron substrate material for 5 to 30 minutes in a continuous furnace at a temperature of between 750° C. and 900° C., such that the enamel coating bonds to the base material of the bore metallurgically by phase formation.6. The method as claimed in claim 4 ,wherein the enamel coating is annealed together with a main body made of an aluminum alloy for 5 to 30 minutes in a continuous furnace at a temperature of between 480° C. and 560° C., such that the enamel coating bonds to the base material of the bore metallurgically by phase formation.7. The method as claimed in claim 4 ,wherein the main body is fed together with the dried enamel coating to a heating apparatus, in which the main ...

Methods and systems for a ventilating arrangement

Methods and systems are provided for a ventilation arrangement. In one example, a system may include a compact ventilation arrangement arranged within a space between an intake manifold and a cylinder head. A pump of the ventilation arrangement arrange adjacent the cylinder head.

METHODS AND SYSTEMS FOR A COOLING SYSTEM VALVE

Methods and systems are provided for a cooling system valve comprising a fusible insert and a heating element coupled to the insert. In one example, in response to an increase in coolant temperature to above a first threshold temperature, a movable element of the cooling system valve may be actuated to a fully open position and in response to an increase in coolant temperature to above a second threshold temperature with the movable element in a fully open position, electric current may be routed through the heating element to heat and melt the fusible insert. By melting the fusible portion, coolant may flow through an opening created in the movable element.

METHODS AND SYSTEMS FOR A CONTROL VALVE OF A CIRCUIT

Methods and systems are provided for a control device for adjusting coolant flow. In one example, the control device may be shaped to receive charge air, engine coolant, and charge-air cooler coolant to adjust a flow of charge-air cooler coolant to a radiator. 1. A system comprising:a control valve shaped to adjust a flow of a low-temperature coolant from a cooler to a radiator in response to a charge pressure, an engine coolant pressure, or a temperature of the low-temperature coolant.2. The system of claim 1 , wherein the cooler is fluidly coupled to the radiator via a coolant circuit claim 1 , and where the control valve comprises a closure with a tunnel claim 1 , wherein the tunnel may partially or fully complete the coolant circuit in some positions of the closure.3. The system of claim 2 , wherein the closure is actuated via one or more of a spring claim 2 , a membrane claim 2 , an actuator of a thermostat claim 2 , and an engine coolant entering an upper chamber of the control valve.4. The system of claim 3 , wherein the spring actuates the closure to a fully closed position in response to the charge pressure being less than a first threshold charge pressure claim 3 , the engine coolant pressure being less than a first threshold coolant pressure claim 3 , and the temperature of the low-temperature coolant being less than a threshold temperature claim 3 , wherein the fully closed position comprises the tunnel being completely misaligned with the coolant circuit.5. The system of claim 3 , wherein the membrane presses against and actuates the closure in response to the charge pressure being greater than or equal to a first threshold charge pressure claim 3 , wherein the membrane at least partially fills with charge air and occupies at least a portion of the upper chamber claim 3 , wherein the closure compresses the spring when the membrane is at least partially filled and the tunnel at least partially aligns with the coolant circuit to flow coolant from the ...

Variable camshaft timing device

Variable Nockenwellensteuervorrichtung (1) für eine Brennkraftmaschine zum Einstellen einer Phase zwischen einer ersten Welle und einer zweiten Welle unter Verwendung eines Öldrucks von einer Öldruckquelle, umfassend:ein Gehäuse (2) mit einem Außenumfang zum Aufnehmen einer Antriebskraft,einen koaxial in dem Gehäuse (2) angeordneten Rotor (7) in Verbindung mit der ersten Welle,mindestens ein in dem Gehäuse (2) angeordnetes Segment (3), das durch einen Flügel (4) in eine Frühverstellungskammer (5) und eine Spätverstellungskammer (6) unterteilt ist,wobei der Flügel (4) eine Drehung ausführen kann, um die relative Winkelposition des Rotors (7) zum Gehäuse (2) zu verschieben,wobei die Frühverstellungskammer (5) und die Spätverstellungskammer (6) zum Drehen des Flügels (4) zwischen mindestens einer Zuleitung (9) und einer Ableitung (12) entgegengesetzt schaltbar sind, wobei der Flügel (4) durch Öldruckbeaufschlagung, die über die Zuleitung (9) entweder mittels eines Frühverstellungszuleitungskanals (9a) an die Frühverstellungskammer (5) oder mittels eines Spätverstellungszuleitungskanals (9b) an die Spätverstellungskammer (6) bewirkt wird, beweglich ist, während die jeweils andere Kammer über die Ableitung (12) entweder mittels eines Frühverstellungsableitungskanals (12a) oder mittels eines Spätverstellungsableitungskanals (12b) mit einer Sammeleinrichtung für das Öl (13) in Strömungsverbindung steht,wobei die Öldruckbeaufschlagung der Frühverstellungskammer (5) oder der Spätverstellungskammer (6) durch ein Steuerventil (10) gesteuert wird,wobei die Zuleitung (9) stromaufwärts des Steuerventils (10) ein erstes Rückschlagventil (11) aufweist,und wobei in der Ableitung (12) stromabwärts des Steuerventils (10) ein zweites Rückschlagventil (15) angeordnet ist,das Steuerventil (10) und / oder das zweite Rückschlagventil (15) ausgebildet sind, eine Ventilposition einzunehmen, in der der Ölstrom in der Ableitung (12) unterbrochen wird,dadurch gekennzeichnet, dassdas ...

Thermostatic valve for a coolant circuit

Es wird ein Thermostatventil zum Steuern der Strömung eines fluiden Mediums in einem Kühlmittelkreislauf einer Brennkraftmaschine bereitgestellt, wobei das Thermostatventil ausgebildet ist, durch ein Dehnstoffelement auf die Temperatur des Kühlmittels und durch einen druckempfindlichen Aktor auf den Ladedruck im Ansaugtrakt zu reagieren. Es werden weiterhin eine Anordnung mit dem Thermostatventil und ein Kraftfahrzeug mit der Anordnung bereitgestellt. A thermostatic valve is provided for controlling the flow of a fluid medium in a coolant circuit of an internal combustion engine, the thermostatic valve being designed to react to the temperature of the coolant through an expansion element and to the boost pressure in the intake tract through a pressure-sensitive actuator. Furthermore, an arrangement with the thermostatic valve and a motor vehicle with the arrangement are provided.

Internal combustion engine with liquid-cooled cylinder head

Die Erfindung betrifft eine Brennkraftmaschine mit mindestens einem flüssigkeitsgekühlten Zylinderkopf (1), der – mindestens einen Zylinder aufweist, wobei jeder Zylinder mindestens eine Auslassöffnung zum Abführen der Abgase aus dem Zylinder via Abgasabführsystem aufweist und sich an jede Auslassöffnung eine Abgasleitung (7) anschliesst, und der – zur Ausbildung der Flüssigkeitskühlung mit mindestens einem integrierten Kühlmittelmantel (2, 2a, 2b) ausgestattet ist, welcher durch Wandungen (8) des Zylinderkopfes (1) begrenzt und ausgebildet ist, wobei – die den mindestens einen integrierten Kühlmittelmantel (2, 2a, 2b) begrenzenden Wandungen (8) zumindest bereichsweise mit einer Wärmeisolierung (8a) versehen sind. Es soll eine Brennkraftmaschine mit mindestens einem flüssigkeitsgekühlten Zylinderkopf (1) bereitgestellt werden, der hinsichtlich der Flüssigkeitskühlung optimiert ist. Gelöst wird diese Aufgabe durch eine Brennkraftmaschine der genannten Art, die dadurch gekennzeichnet ist, dass – die Wandungen (8), die dem mindestens einen Zylinder zugewandt sind, zumindest bereichsweise mit einer Wärmeisolierung (8a) versehen sind. The invention relates to an internal combustion engine having at least one liquid-cooled cylinder head (1), which has at least one cylinder, each cylinder having at least one outlet opening for discharging the exhaust gases out of the cylinder via the exhaust gas removal system and connecting an exhaust pipe (7) to each outlet opening, and the - for the formation of liquid cooling with at least one integrated coolant jacket (2, 2a, 2b) is provided, which is bounded and formed by walls (8) of the cylinder head (1), - - the at least one integrated coolant jacket (2, 2a, 2b) limiting walls (8) are at least partially provided with a thermal insulation (8a). An internal combustion engine is to be provided with at least one liquid-cooled cylinder head (1) which is optimized with regard to liquid cooling. This object is achieved by an internal ...

Apparatus for the casting production of a cylinder crankcase and manufacturing method

Die Erfindung betrifft eine Vorrichtung (16, 21, 24) zur gießtechnischen Herstellung eines Zylinderkurbelgehäuses (1, 9, 14) für einen Verbrennungsmotor mit einer das Äußere des Zylinderkurbelgehäuses (1, 9, 14) abbildenden Gießform, wenigstens einem Wassermantelkern (17) zur Abbildung eines Zylinderwände (4) mehrerer in dem Zylinderkurbelgehäuse (1, 9, 14) angeordneter Zylinder (3), die eine Zylinderreihe bilden, auf beiden Längsseiten und Stirnseiten des Zylinderkurbelgehäuses (1, 9, 14) umgebenden Wassermantels (5) des Zylinderkurbelgehäuses (1, 9, 14) nach dem Gießen und wenigstens einem separaten Stegkern (11, 18, 22, 25) zur Abbildung wenigstens eines Kühlwasserkanals (6, 10, 15), der sich nach dem Gießen des Zylinderkurbelgehäuses (1, 9, 14) ausgehend von dem Wassermantel (5) zumindest teilweise in eine gemeinsame Zylinderwand (2) zweier benachbarter Zylinder (3) der Zylinderreihe erstreckt. Der Stegkern (11, 18, 22, 25) ist lediglich an wenigstens einem, den gegenüberliegenden Innenlängsseiten des Wassermantelkerns (17) zugewandten Ende (12) am Wassermantelkern (17) gehaltert.Die Erfindung betrifft ferner ein Verfahren zur gießtechnischen Herstellung eines Zylinderkurbelgehäuses (1, 9, 14). The invention relates to a device (16, 21, 24) for the casting production of a cylinder crankcase (1, 9, 14) for an internal combustion engine with a casting of the exterior of the cylinder crankcase (1, 9, 14), at least one water jacket core (17) Illustration of a cylinder walls (4) of a plurality of cylinders (3) arranged in the cylinder crankcase (1, 9, 14), forming a row of cylinders, on both longitudinal sides and end faces of the cylinder crankcase (1, 9, 14) surrounding the water jacket (5) of the cylinder crankcase ( 1, 9, 14) after casting and at least one separate web core (11, 18, 22, 25) for imaging at least one cooling water channel (6, 10, 15), which after the casting of the cylinder crankcase (1, 9, 14) starting from the water jacket (5) extends at least ...

Process for coating a bore and cylinder block of an internal combustion engine

Die Erfindung betrifft ein Verfahren zum Herstellen einer beschichteten, inneren Oberfläche (4), insbesondere zum Herstellen einer beschichteten Bohrung (1) eines Verbrennungsmotors Vorgeschlagen wird, dass das Verfahren zumindest mit den folgenden Schritten durchgeführt wird: – Herstellen eines im Rohling vorliegenden Basiskörpers (3); – Aufbohren der Bohrung (1) und Vorbearbeiten derselben; – Aufbringen einer Email-Beschichtung (2) auf die innere Oberfläche (4) der Bohrung (1), und – Nachbehandlung der beschichteten Bohrung (1), wobei sich die Email-Beschichtung (2) mit dem Grundwerkstoff der Bohrung (1) metallurgisch durch Phasenbildung verbindet. The invention relates to a method for producing a coated, inner surface (4), in particular for producing a coated bore (1) of an internal combustion engine. It is proposed that the method be carried out with at least the following steps: - producing a base body present in the blank (3 ); - Drilling the hole (1) and pre-processing of the same; - Applying an enamel coating (2) on the inner surface (4) of the bore (1), and - aftertreatment of the coated bore (1), wherein the enamel coating (2) with the base material of the bore (1) metallurgical connects by phase formation.

Lubrication system for an internal combustion engine and method of lubrication

Ein Schmierungssystem (5) für einen Verbrennungsmotor (1) umfaßt einen Schmiermittelkreislauf (6), einen Kühler (11) zum Kühlen des Schmiermittels, einen stromaufwärts des Motors (1) angeordneten Wärmespeicher (15) zum Aufwärmen des Schmiermittels, der parallel zu dem Kühler (11) geschaltet ist, undreislaufs (6) zwischen Kühler (11) und Wärmespeicher (15). A lubrication system (5) for an internal combustion engine (1) comprises a lubricant circuit (6), a cooler (11) for cooling the lubricant, a heat accumulator (15) arranged upstream of the engine (1) for warming up the lubricant, which is parallel to the cooler (11) is connected, undreislaufs (6) between cooler (11) and heat storage (15).

Hybrid drive comprising an internal combustion engine and a further torque source for driving a motor vehicle

Die Erfindung betrifft einen Hybrid-Antrieb umfassend eine flüssigkeitsgekühlte Brennkraftmaschine (1) und eine weitere Drehmoment-Quelle zum Antrieb eines Kraftfahrzeuges, bei dem ein Niedertemperatur-Kühlmittelkreislauf (8) vorgesehen ist, in dem eine weitere Pumpe (9) zur Förderung von Kühlmittel, ein Radiator (10) und mindestens ein zur Brennkraftmaschine (1) gehörender Wärmetauscher (11) angeordnet sind, wobei zwecks Umgehung stromaufwärts des mindestens einen zur Brennkraftmaschine (1) gehörenden Wärmetauschers (11) eine Bypassleitung (12) unter Ausbildung eines ersten Knotenpunktes (12a) abzweigt, in der mindestens ein zur weiteren Drehmoment-Quelle gehörender Wärmetauscher (13) angeordnet ist.Es soll ein Hybrid-Antrieb bereitgestellt werden, der hinsichtlich der Kühlung verbessert ist.Erreicht wird dies mit einem Hybrid-Antrieb, bei dem im Niedertemperatur-Kühlmittelkreislauf (8) ein druckgesteuertes Stellelement (14) angeordnet ist, welches in einer ersten Schaltposition den Kühlmittelstrom via dem mindestens einen zur Brennkraftmaschine (1) gehörenden Wärmetauscher (11) freigibt und in einer zweiten Schaltposition den Kühlmittelstrom via dem mindestens einen zur Brennkraftmaschine (1) gehörenden Wärmetauscher (11) sperrt und den Kühlmittelstrom via dem mindestens einen zur weiteren Drehmoment-Quelle gehörenden Wärmetauscher (13) freigibt. The invention relates to a hybrid drive comprising a liquid-cooled internal combustion engine (1) and a further torque source for driving a motor vehicle, in which a low-temperature coolant circuit (8) is provided, in which a further pump (9) for conveying coolant, a radiator (10) and at least one to the internal combustion engine (1) associated heat exchanger (11) are arranged, wherein for the purpose of bypass upstream of the at least one of the internal combustion engine (1) associated heat exchanger (11) a bypass line (12) to form a first node (12a A hybrid drive is to be provided, which is improved in terms of ...

Heat exchanger assembly and exhaust system for an internal combustion engine of a motor vehicle

Die Erfindung betrifft eine Wärmetauscheranordnung (1) für eine Brennkraftmaschine eines Kraftfahrzeugs. Die Wärmetauscheranordnung (1) umfasst eine mit Abgas (A) durchströmbare Rohrleitung (2), welche sich zumindest abschnittsweise innerhalb eines Hohlkörpers (3) erstreckt. Dabei besitzt der Hohlkörper (3) einen zumindest teilweise doppelwandigen und mit einem Fluid (B) durchströmbaren Mantel (8), welcher die Rohrleitung (2) zumindest bereichsweise berührt. Erfindungsgemäß ist wenigstens der Mantel (8) zumindest teilweise aus einer Formgedächtnislegierung gebildet. Durch die temperaturabhängige reversible Verformbarkeit der verwendeten Formgedächtnislegierung ist die Berührung zwischen Mantel (8) und Rohrleitung (2) durch Ausbildung eines Spaltes (15) aufhebbar und durch Überbrückung des Spaltes (15) wieder herstellbar. Dabei ist der mit dem Fluid (B) in direktem Kontakt stehende Mantel (8) des Hohlkörpers (3) nur im Bereich seiner Innenwand (10) derart zumindest teilweise aus der Formgedächtnislegierung ausgebildet, dass die Berührung zwischen Mantel (8) und Rohrleitung (2) bei einer Temperatur des Fluids (B) in einem Bereich von 70° C bis 100° C durch Ausbildung des Spalts (15) vollständig aufhebbar ist. Weiterhin weist der bevorzugt zylindrisch ausgebildete Hohlkörper (3) einen jeweils fluidleitend mit dem Inneren (11) des doppelwandigen Mantels (8) verbundenen Einlass (13) und Auslass (14) für das Fluid (B) auf, welche in einer parallel zu einer Längsrichtung (x) der Rohrleitung (2) verlaufenden Richtung zueinander beabstandet sind und von denen wenigstens einer an einer Außenwand (9) des doppelwandigen Mantels (8) des Hohlkörpers (3) angeordnet ist. Weiterhin ist die Erfindung auf ein Abgassystem mit einer solchen Wärmetauscheranordnung (1) gerichtet. The invention relates to a heat exchanger arrangement (1) for an internal combustion engine of a motor vehicle. The heat exchanger arrangement (1) comprises a pipe (2) through which exhaust gas (A) can flow, ...

Supercharged internal combustion engine with a cooled compressor

Aufgeladene Brennkraftmaschine mit - einem Ansaugsystem (1) zum Zuführen einer Ladeluftströmung, - einem Abgasabführsystem (6) zum Abführen von Abgas, - mindestens einem Abgasturbolader, der eine im Abgasabführsystem (6) angeordnete Turbine (5) und einen im Ansaugsystem (1) angeordneten Verdichter (2) umfasst, wobei der Verdichter (2) mindestens ein in einem Verdichtergehäuse (2c) auf einer drehbaren Welle (2d) gelagertes Laufrad (2e) umfasst, und - einem Lagergehäuse (3) zur Aufnahme und Lagerung der drehbaren Welle (2d) des mindestens einen Verdichters (2), dadurch gekennzeichnet, dass - die drehbare Welle (2d) des mindestens einen Verdichters (2) mit mindestens einem Lüfterrad (4) ausgestattet ist, welches auf der Welle (2d) gelagert ist und bei in Betrieb befindlichem Verdichter (2) und rotierender Welle (2d) umläuft, wobei mindestens ein Lüfterrad (4) verdichterseitig angeordnet ist.

Internal combustion engine with dry sump lubrication device and motor vehicle

Es wird ein Verbrennungsmotor (11) mit einem eine Wanne (14) aufweisenden Kurbelgehäuse (12), einer Ausgleichswelle (30) und einer Trockensumpfschmiervorrichtung (20) bereitgestellt. Die Trockensumpfschmiervorrichtung (20) umfasst zumindest eine Saugpumpe (22), einen Separator (23), ein Reservoir (24) sowie eine Druckpumpe (27). Erfindungsgemäß ist die Saugpumpe (22) von der Ausgleichswelle (30) angetrieben ist. Zudem wird ein Kraftfahrzeug (10) mit diesem Verbrennungsmotor (11) bereitgestellt. An internal combustion engine (11) is provided with a crankcase (12) having a sump (14), a balance shaft (30) and a dry sump lubrication device (20). The dry sump lubrication device (20) comprises at least one suction pump (22), a separator (23), a reservoir (24) and a pressure pump (27). According to the invention, the suction pump (22) is driven by the balance shaft (30). In addition, a motor vehicle (10) is provided with this internal combustion engine (11).

Cylinder head with a cooling jacket that contains a cooling core and a venting channel

The cylinder head (1) has a one-piece coolant jacket core (3) and a coolant jacket with at least one venting bar (4). In the assembled state, the virtual roof plane (5) on the core rises in the direction of the venting bar, forming an angle of not less than 0[deg] with the horizontal plane (6). This angle may be less than 45[deg].

'INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

MOTOR DE COMBUSTÃO INTERNA E MÉTODO PARA OPERAR UM MOTOR DE COMBUSTÃO INTERNA. A invenção refere-se a um motor de combustão interna que compreende pelo menos um cilindro que compreende pelo menos duas portas de exaustão para remover os gases de escape e pelo menos duas portas de entrada para admissão do ar de combustão, em que pelo menos uma das quais é incorporada como uma porta conectável; um trem de válvulas (2) que compreende uma válvula para cada porta e um dispositivo de acionamento de válvula para acionar as válvulas, o qual compreende pelo menos um eixo comando com múltiplos cames e múltiplos seguidores de came (6), cada seguidor de came (6) sendo disposto no fluxo da potência entre um came e uma válvula de modo que, à medida que o eixo comando gira, a válvula desempenha um movimento elevatório oscilatório; e um circuito de óleo (1) e uma bomba (3) para abastecer o trem de válvula (2) com óleo de motor por meio de uma linha de abastecimento (4), em que o seguidor de came (6) de pelo menos uma porta conectável é um seguidor de came conectável hidraulicamente (6a) que é conectado ao circuito de óleo (1), e a bomba (3) é uma bomba variável (3) de tal maneira que a pressão do óleo na linha de abastecimento (4) a jusante da bomba (3) é controlável. INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE. The invention relates to an internal combustion engine comprising at least one cylinder comprising at least two exhaust ports for removing exhaust gases and at least two combustion air intake ports, wherein at least one of which is incorporated as a pluggable port; a valve train (2) comprising a valve for each port and a valve actuation device for actuating the valves, which comprises at least one camshaft and multiple cam followers (6), each cam follower (6) being arranged in the flow of power between a cam and a valve such that, as the camshaft rotates, the valve performs an oscillatory lifting motion; and an oil circuit (1) and a pump ...

Cooling system and method for controlling the temperature of an internal combustion engine with a heat exchanger and a motor vehicle

Es wird ein Kühlsystem 1 zur Temperierung eines Verbrennungsmotors 2 angegeben, das einen Kühlkreislauf 3, in dem ein Zylinderkopf 4 und ein Motorblock 5 des Verbrennungsmotors 2 in Reihe hintereinander angeordnet sind, und einen zwischen dem Zylinderkopf 4 und dem Motorblock 5 im Kühlkreislauf 3 angeordneten Wärmeüberträger 6, ausgebildet zur Erwärmung eines im Kühlkreislauf 3 strömenden Kühlmittels 7, aufweist.Außerdem werden ein Verfahren zur Temperierung eines Verbrennungsmotors 2 mittels eines solchen Kühlsystems 1 sowie ein Kraftfahrzeug 17 mit einem solchen Kühlsystem 1 angegeben. A cooling system 1 for temperature control of an internal combustion engine 2 is specified, which has a cooling circuit 3 in which a cylinder head 4 and an engine block 5 of the internal combustion engine 2 are arranged in series one behind the other, and a heat exchanger arranged between the cylinder head 4 and the engine block 5 in the cooling circuit 3 6, designed for heating a coolant 7 flowing in the cooling circuit 3. In addition, a method for controlling the temperature of an internal combustion engine 2 by means of such a cooling system 1 and a motor vehicle 17 with such a cooling system 1 are specified.

cooling strategy

Kühlstrategie für Verbrennungsmotoren (1) aufweisend ein Kühlsystem (22) mit einem flüssigkeitsgekühlten Motorblock mit Zylinderkopf, wobei eine von einem Kühlmittelauslaß (2) des Motorblocks ausgehende erste Verbindungsleitung (3) über zumindest einen Ölwärmetauscher (4) und eine Kühlmittelpumpe (5) zu einem Kühlmitteleinlaß (6) des Motorblocks zurückführt, und wobei der Verbrennungsmotor (1) bzw. sein Blockwassermantel in einer Warmlaufphase mittels eines geschlossenen Einlaßventils (10) von dem Kühlsystem (22) getrennt ist, dadurch gekennzeichnet, dass Kühlmittel mittels der Kühlmittelpumpe (5) durch einen Bypaß (11) von seinem Einlasspfad zwischen einem Kühlmittelpumpenauslaß und dem Einlaßventil (10) zu dem Auslaßpfad des Bypaß (11) an einer Auslaßseite des Verbrennungsmotors (1) in die erste Verbindungsleitung (3) gefördert wird, so dass der zumindest eine Ölwärmetauscher (4) mit mittels einer in dem Bypaß (11) angeordneten zusätzlichen Wärmequelle (12) aufgewärmten Kühlmittel durchströmt wird, wobei der Verbrennungsmotor (1) zumindest in der Warmlaufphase von der Kühlmittelströmung umströmt wird, und wobei auch nach Beendigung der Warmlaufphase zusätzliche Wärmeenergie mittels... Cooling strategy for internal combustion engines (1) comprising a cooling system (22) with a liquid-cooled engine block with a cylinder head, a first connecting line (3) starting from a coolant outlet (2) of the engine block via at least one oil heat exchanger (4) and a coolant pump (5) to a Recirculates coolant inlet (6) of the engine block, and wherein the internal combustion engine (1) or its block water jacket is separated from the cooling system (22) in a warm-up phase by means of a closed inlet valve (10), characterized in that coolant by means of the coolant pump (5) a bypass (11) is conveyed from its inlet path between a coolant pump outlet and the inlet valve (10) to the outlet path of the bypass (11) on an outlet side of the internal combustion engine (1) in the first ...

Apparatus for the casting production of a cylinder crankcase and manufacturing method

Die Erfindung betrifft eine Vorrichtung (16, 21, 24) zur gießtechnischen Herstellung eines Zylinderkurbelgehäuses (1, 9, 14) für einen Verbrennungsmotor mit einer das Äußere des Zylinderkurbelgehäuses (1, 9, 14) abbildenden Gießform, wenigstens einem Wassermantelkern (17) zur Abbildung eines Zylinderwände (4) mehrerer in dem Zylinderkurbelgehäuse (1, 9, 14) angeordneter Zylinder (3), die eine Zylinderreihe bilden, auf beiden Längsseiten und Stirnseiten des Zylinderkurbelgehäuses (1, 9, 14) umgebenden Wassermantels (5) des Zylinderkurbelgehäuses (1, 9, 14) nach dem Gießen und wenigstens einem separaten Stegkern (11, 18, 22, 25) zur Abbildung wenigstens eines Kühlwasserkanals (6, 10, 15), der sich nach dem Gießen des Zylinderkurbelgehäuses (1, 9, 14) ausgehend von dem Wassermantel (5) zumindest teilweise in eine gemeinsame Zylinderwand (2) zweier benachbarter Zylinder (3) der Zylinderreihe erstreckt. Der Stegkern (11, 18, 22, 25) ist lediglich an wenigstens einem, den gegenüberliegenden Innenlängsseiten des Wassermantelkerns (17) zugewandten Ende (12) am Wassermantelkern (17) gehaltert. Der Stegkern (11, 18, 22, 25) ist als Verlustkern mit einem in einer Flüssigkeit lösbaren und/oder einem brennbaren und/oder einem spröden Material ausgebildet und der Wassermantelkern (17) ist als wiederverwendbarer Kern ausgebildet. Die Erfindung betrifft ferner ein Verfahren zur gießtechnischen Herstellung eines Zylinderkurbelgehäuses (1, 9, 14). The invention relates to a device (16, 21, 24) for the casting production of a cylinder crankcase (1, 9, 14) for an internal combustion engine with a casting of the exterior of the cylinder crankcase (1, 9, 14), at least one water jacket core (17) Illustration of a cylinder walls (4) of a plurality of cylinders (3) arranged in the cylinder crankcase (1, 9, 14), forming a row of cylinders, on both longitudinal sides and end faces of the cylinder crankcase (1, 9, 14) surrounding the water jacket (5) of the cylinder crankcase ( 1, 9, 14) after ...

Engine and/or gear oil heating device for internal combustion engine, has heat transfer element with hot ends, where heat transfer medium takes away heat from gas over ends, and delivers heat to oil over region

The device has a heat transfer element that is assigned with hot ends, where a heat transfer medium e.g. water, takes away heat from exhaust gas over the hot ends, conveys the heat to a cold region of the heat transfer element from a exhaust gas system, and delivers the heat to engine and/or gear oil of an internal combustion engine over the cold region. The heat transfer element is designed as a heat pipe. The heat transfer element with its hot ends is arranged within an exhaust gas system downstream to a catalyst. The oil in an oil reservoir is heated by the transfer of heat.

Internal combustion engine with spark plug and a method for operating an internal combustion engine

Verbrennungskraftmaschine (10) mit mindestens einem Brennraum (12) zur Verbrennung eines Kraftstoffgemisches und einer Zündkerze (14) zum Fremdzünden des Kraftstoffgemisches in dem Brennraum (12), wobei die Zündkerze (14) Elektroden (20, 22) zum Erzeugen eines Zündfunkens an einem Ort innerhalb des Brennraums (12) aufweist, wobei die Verbrennungskraftmaschine (10) eine Stellvorrichtung (44) zum Ändern des Abstands zwischen dem Ort des Zündfunkens und einem Rand (18) des Brennraums (12) aufweist, dadurch gekennzeichnet, dass ein Reduzieren des Abstands zwischen dem Ort des Zündfunkens und dem Rand (18) des Brennraums (12) bei einer Temperaturerhöhung der Verbrennungskraftmaschine (10) während eines Betriebs erfolgt, wobei die Stellvorrichtung (44) zum Verschieben der Zündkerze (14) entlang der Längsachse (32) der Zündkerze (14) ausgebildet ist, und wobei die Stellvorrichtung (44) ein Dehnelement (42, 48) aufweist. Internal combustion engine (10) with at least one combustion chamber (12) for burning a fuel mixture and a spark plug (14) for externally igniting the fuel mixture in the combustion chamber (12), the spark plug (14) having electrodes (20, 22) for generating an ignition spark on a Has location within the combustion chamber (12), the internal combustion engine (10) having an adjusting device (44) for changing the distance between the location of the ignition spark and an edge (18) of the combustion chamber (12), characterized in that reducing the distance between the location of the ignition spark and the edge (18) of the combustion chamber (12) when the temperature of the internal combustion engine (10) increases during operation, the adjusting device (44) for moving the spark plug (14) along the longitudinal axis (32) of the spark plug (14) is formed, and wherein the adjusting device (44) has an expansion element (42, 48).

Liquid-cooled internal combustion engine with selector guide valve, and method for controlling the selector guide valve of an internal combustion engine of said type.

La invención se refiere a un motor de combustión interna refrigerado por líquido con al menos una tapa de cilindros refrigerada por líquido y con un bloque de cilindros refrigerado por líquido y con un equipo guía selector para el control según demanda de una disposición de refrigeración del tipo líquido, - el equipo guía selector, dispuesto en un circuito de refrigerante, con al menos una entrada y al menos tres salidas (6a, 6b, 6c, 6d, 6e) para el refrigerante, y - una línea de recirculación, donde se dispone un intercambiador de calor, y una línea periférica, que rodea al intercambiador de calor en la línea de recirculación, que se proporcionan para formar el circuito de refrigerante. - un segundo cilindro hueco montado en forma rotativa en un primer cilindro hueco que está montado en forma rotativa en la carcasa, - al menos una entrada del equipo guía selector que surte al segundo cilindro hueco, - la carcasa que tiene al menos tres secciones de un conducto que forman las al menos tres salidas (6a, 6b, 6c, 6d, 6e) del equipo guía selector, y - cada cilindro hueco con al menos tres aberturas (7, 8) en la superficie externa, donde puede conectarse al menos una entrada a al menos una salida (6a, 6b, 6c, 6d, 6e) tras la rotación de al menos un cilindro hueco.

Internal combustion engine with dry sump lubrication and method for operating such an internal combustion engine

Die Erfindung betrifft eine Brennkraftmaschine (1) mit einem Einlassbereich (2) zur Versorgung der Brennkraftmaschine (1) mit Frischluft und einer Trockensumpfschmierung (3), wobei die Brennkraftmaschine (1) einerseits via Abführleitung (4) mit einem Behältnis (5) zur Bevorratung des Öls (18) verbunden ist, um in der Brennkraftmaschine (1) gesammeltes Öl (18) in das Behältnis einzuleiten, und andererseits via Versorgungsleitung (6) mit dem Behältnis (5) verbunden ist, um mittels einer in der Versorgungsleitung (6) angeordneten Ölpumpe (7) dem Behältnis (5) Öl (18) zu entnehmen und mit diesem Öl (18) die Brennkraftmaschine (1) zu versorgen. Des Weiteren betrifft die Erfindung ein Verfahren zum Betreiben einer derartigen Brennkraftmaschine (1). Es soll eine Brennkraftmaschine (1) bereitgestellt werden, bei der hinsichtlich der Anordnung des Behältnisses (5) mehr Freiheiten bestehen und die insbesondere ein dichtes Packaging der gesamten Antriebseinheit zulässt. Erreicht wird dies mit einer Brennkraftmaschine (1) der genannten Art, die dadurch gekennzeichnet ist, dass von dem Behältnis (5) eine Entlüftungsleitung (8) abzweigt, die in einen Unterdruck führenden Teil des Einlassbereichs (2) führt, und in das Behältnis (5) eine Frischluftleitung (9) mündet zum Zuführen von Frischluft in das Behältnis (5), wobei in der Frischluftleitung (9) ein Steuerelement (10) angeordnet ist, mit dem die Zufuhr von Frischluft in das Behältnis (5) steuerbar ist. The invention relates to an internal combustion engine (1) having an inlet region (2) for supplying the internal combustion engine (1) with fresh air and a dry sump lubrication (3), wherein the internal combustion engine (1) on the one hand via discharge line (4) with a container (5) for storage the oil (18) is connected to introduce in the internal combustion engine (1) collected oil (18) in the container, and on the other hand via supply line (6) to the container (5) is connected to one by means of the supply line (6) arranged ...

Separately cooled turbocharger for maintaining a no-flow strategy of an engine block coolant jacket

An internal combustion engine is provided herein. The internal combustion engine may include a turbocharger including a turbine positioned in an exhaust passage, the turbine having a turbine housing. The internal combustion engine may further include a cooling system having an engine block coolant jacket fluidly coupled to a pump, a cylinder head coolant jacket fluidly coupled to the pump, and a turbine coolant passage traversing the turbine housing and fluidly coupled to the pump and bypassing the engine block coolant jacket.

Separately cooled turbocharger for maintaining a no-flow strategy of an engine block coolant jacket

An internal combustion engine is provided herein. The internal combustion engine may include a turbocharger including a turbine positioned in an exhaust passage, the turbine having a turbine housing. The internal combustion engine may further include a cooling system having an engine block coolant jacket fluidly coupled to a pump, a cylinder head coolant jacket fluidly coupled to the pump, and a turbine coolant passage traversing the turbine housing and fluidly coupled to the pump and bypassing the engine block coolant jacket.

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.

Method for operating a spark-ignited supercharged internal combustion engine and internal combustion engine for carrying out such a method

Verfahren zum Betreiben einer fremdgezündeten aufgeladenen Brennkraftmaschine (1) mit- mindestens einem Zylinder,- einem Abgasabführsystem (9) zum Abführen der Abgase,- einem Ansaugsystem (10) zum Zuführen von Ladeluft,- mindestens einem Abgasturbolader (2), der eine im Abgasabführsystem (9) angeordnete Turbine (2a) und einen im Ansaugsystem (10) angeordneten Verdichter (2e) umfasst, wobei die Turbine (2a) mit mindestens einem in einem Turbinengehäuse (2c) auf einer drehbaren Welle (2d) gelagerten Laufrad (2b) ausgestattet ist,- einer Dosiereinrichtung (3) zum Einbringen zusätzlicher Luft stromaufwärts des mindestens einen Laufrades (2b) der Turbine (2a),- einem Druckluftbehältnis (6), welches die zusätzliche Luft bevorratet und die Dosiereinrichtung (3) via einer Versorgungsleitung (7) mit Druckluft versorgt, wobei das Druckluftbehältnis (6) zwecks Befüllung mit Druckluft mit dem Abgasabführsystem (9) strömungstechnisch zumindest verbindbar ist, und- einem im Abgasabführsystem (9) stromabwärts der Turbine (2a) angeordneten Drei-Wege-Katalysator (15) zur Nachbehandlung des Abgases, bei dem- die Brennkraftmaschine (1) im befeuerten Betrieb unterstöchiometrisch (λ < 1) betrieben wird, falls zusätzliche Luft unter Verwendung der Dosiereinrichtung (3) in das Abgasabführsystem (9) eingebracht wird, und- das Druckluftbehältnis (6) im unbefeuerten Betrieb der Brennkraftmaschine (1) via Abgasabführsystem (9) befüllt wird. A method for operating a spark-ignited supercharged internal combustion engine (1) with at least one cylinder, an exhaust system (9) for discharging the exhaust gases, an intake system (10) for supplying charge air, at least one exhaust gas turbocharger (2), the one in Abgasabführsystem (9) arranged turbine (2a) and in the intake system (10) arranged compressor (2e), wherein the turbine (2a) with at least one in a turbine housing (2c) on a rotatable shaft (2d) mounted impeller (2b) equipped is - a metering device (3) for introducing additional air ...

Cooling system for an internal combustion engine

Die Erfindung betrifft ein Kühlsystem (1) für einen Verbrennungsmotor (2). Um eine verbesserte Einstellung der Betriebstemperaturen eines Motorblocks sowie eines Zylinderkopfes eines Verbrennungsmotors zu ermöglichen, ist erfindungsgemäß vorgesehen, dass das Kühlsystem einen Kühlkreislauf (5) mit einem einen Zylinderkopf (4) durchlaufenden ersten Abschnitt (6), einem sich stromabwärts anschließenden, einen Motorblock (3) durchlaufenden zweiten Abschnitt (9) sowie einen stromabwärts des zweiten Abschnitts (9) und stromaufwärts des ersten Abschnitts (6) angeordneten Kühlerabschnitt aufweist, wobei eine Steuereinheit (30) dazu eingerichtet ist, eine vorzunehmende relative Temperaturerhöhung des Motorblocks (3) gegenüber dem Zylinderkopf (4) festzustellen und eine Pumpenanordnung (7) zur Förderung von Kühlmittel im Kühlkreislauf (5) anzusteuern, um einen Kühlmittelstrom im ersten Abschnitt (6) zur relativen Temperaturerhöhung zu verringern. The invention relates to a cooling system (1) for an internal combustion engine (2). In order to enable an improved setting of the operating temperatures of an engine block and of a cylinder head of an internal combustion engine, the cooling system is provided with a cooling circuit (5) with a first section (6) passing through a cylinder head (4) and a downstream engine block () 3) passing through the second section (9) and a cooler section arranged downstream of the second section (9) and upstream of the first section (6), wherein a control unit (30) is set up to carry out a relative temperature increase of the engine block (3) compared to the Determine cylinder head (4) and to control a pump arrangement (7) for conveying coolant in the cooling circuit (5) in order to reduce a coolant flow in the first section (6) for the relative temperature increase.

Cooling strategy for internal combustion engines, involves dividing medium cycle into cylinder head side and block sided coolant jacket, where coolant control valve is provided, which prevents coolant flow to block sided coolant jacket

The cooling strategy (2) involves dividing a medium cycle into a cylinder head side and a block sided coolant jacket. A coolant control valve is provided, which prevents the flow of coolant to the block sided coolant jacket and releases until a predetermined temperature is reached. A warm-up model of the combustion engine is implemented in a control unit for receiving the temperature during a start of the combustion engine and operating data of the internal combustion engine and for determining a heat input from the received temperature and the received operating data (6).

Method for controlling and reducing thermal load of internal combustion engine e.g. diesel engine of motor car, involves reducing air ratio when temperature of cylinder head exceeds predetermined upper limit temperature

The method involves providing a cylinder head (6) with a cylinder (3), and determining temperature of the cylinder head by a sensor unit (16). Air ratio is reduced when the temperature (Tcyl) of the cylinder head exceeds predetermined upper limit temperature based on stoichiometric operation of a combustion engine (1). The air ratio is increased when the temperature of the cylinder head falls below of predetermined lower limit temperature based on under-stoichiometric operation of the combustion engine. The combustion engine is equipped with a liquid cooling unit (12).

Method for heating the engine oil of an internal combustion engine and internal combustion engine for carrying out such a method

Verfahren zur Erwärmung von Motoröl eines Ölkreislaufs (1) einer Brennkraftmaschine, die zur Förderung des Motoröls zu mindestens einem Verbraucher (5) innerhalb des Ölkreislaufs (1) eine Pumpe (2) aufweist, welche stromaufwärts des mindestens einen Verbrauchers (5) in einer Versorgungsleitung (4) angeordnet ist, dadurch gekennzeichnet, dass - die Reibung im Motoröl mechanisch erhöht wird mittels einer Vorrichtung (12), die zwischen dem mindestens einen Verbraucher (5) und der Pumpe (2) angeordnet und mit dem Motoröl beaufschlagt ist, und - die Vorrichtung (12) zur Erwärmung des Motoröls in der Warmlaufphase aktiviert wird, wobei infolge einer Bewegung der Vorrichtung (12) Turbulenzen im Motoröl erzeugt werden, die aufgrund von Reibung zu einem Wärmeeintrag und damit zu einer Erhöhung der Öltemperatur führen. Method for heating engine oil of an oil circuit (1) of an internal combustion engine, which comprises a pump (2) for conveying the engine oil to at least one consumer (5) within the oil circuit (1) upstream of the at least one consumer (5) in a supply line (4) is arranged, characterized in that - The friction in the engine oil is mechanically increased by means of a device (12) which is arranged between the at least one consumer (5) and the pump (2) and acted upon by the engine oil, and - The device (12) is activated for heating the engine oil in the warm-up phase, wherein due to movement of the device (12) turbulence in the engine oil are generated, which lead due to friction to a heat input and thus to an increase in the oil temperature.

Separately cooled turbo charger for maintaining a no-flow strategy of a cylinder block coolant lining

The engine (1) has a cylinder block coolant jacket operated in a turbine housing (13) in a turbocharger (12) during a subphase of a heating phase of the engine according to nitrogen oxide flow strategy. A cooling circuit (4) is separated from the cylinder block coolant jacket and connected with a common pump (7) that is joined to the cylinder block coolant jacket. A bypass (11) is provided downstream to the pump and upstream to a cylinder block coolant inlet (9). The housing is made of light material i.e. aluminum, where the housing or the turbocharger is provided with the cooling circuit. An independent claim is also included for a method for controlling coolant during a heating phase of an internal combustion engine.

Liquid cooled internal combustion engine with coolant circuit, and method for operation of the liquid cooled internal combustion engine

A liquid cooled internal combustion engine having a bypass line with a controllable shut off element so that coolant can bypass the cylinder head in certain engine operating conditions. The bypass line branches off from the coolant circuit upstream of the cylinder head and returns to the coolant circuit downstream of the cylinder head.

Crankshaft bearings for an internal combustion engine

Kurbelwellenlager für eine Brennkraftmaschine (1) umfassend wenigstens eine Lagerschale (8, 9), welche einen kreisringförmigen oder kreisringabschnittsförmigen Basiskörper (10, 11) besitzt, wobei eine Innenseite (12) des Basiskörpers (10, 11) dazu ausgebildet ist, um mit einer äußeren Mantelfläche einer gegen die Lagerschale (8, 9) abstützbaren Welle (3) zumindest teilweise in Berührung zu stehen, dadurch gekennzeichnet, dass auf einer der Innenseite (12) abgewandten Außenseite (13) des Basiskörpers (10, 11) wenigstens bereichsweise ein Dämmmittel (14) angeordnet ist, wobei das Dämmmittel (14) aus Emaille gebildet ist. Crankshaft bearing for an internal combustion engine (1) comprising at least one bearing shell (8, 9) which has a circular ring-shaped or circular ring segment-shaped base body (10, 11), an inner side (12) of the base body (10, 11) being designed to be connected to a to be at least partially in contact with the outer circumferential surface of a shaft (3) which can be supported against the bearing shell (8, 9), characterized in that an insulating means at least in some areas is provided on an outer side (13) of the base body (10, 11) facing away from the inner side (12) (14) is arranged, wherein the insulating means (14) is formed from enamel.

Proportional valve and method for controlling such a proportional valve

Die Erfindung betrifft ein Proportionalventil (1) zur bedarfsgerechten Steuerung einer Flüssigkeitskühlung einer flüssigkeitsgekühlten Brennkraftmaschine mit mindestens einem Zylinderkopf und mindestens einem Zylinderblock, welches als Ventilkörper (1a) eine drehbare Walze (2) mit mindestens einem zur Mantelfläche (2a) der Walze (2) hin offenen Kühlmitteldurchtritt (4a, 4b) und zur drehbaren Lagerung und Aufnahme der Walze (2) ein Ventilgehäuse (1b) mit mindestens einem Kühlmittelkanal (5a, 5b) aufweist, wobei der mindestens eine Kühlmittelkanal (5a, 5b) durch Verstellen der Walze (2) mit dem mindestens einen Kühlmitteldurchtritt (4a, 4b) zumindest verbindbar ist und das Proportionalventil (1) mindestens einen Eingang (7a) und mindestens einen Ausgang (8a, 8b) für Kühlmittel aufweist. Des Weiteren betrifft die Erfindung ein Verfahren zur Steuerung eines derartigen Proportionalventils (1). Es soll ein Proportionalventil (1) der vorstehenden Art bereitgestellt werden, das eine Optimierung der Steuerung der Kühlung gestattet und mit dem eine Vielzahl von Kühlmittelkreisläufen steuerbar ist, wobei den Erfordernissen der verschiedenen Kreisläufe insbesondere gleichzeitig und möglichst umfänglich entsprochen werden kann. Gelöst wird diese Aufgabe durch ein Proportionalventil (1), bei dem die Walze (2) mittels Verstellvorrichtung (6) auch translatorisch verschiebbar ist. The invention relates to a proportional valve (1) for demand-controlled liquid cooling of a liquid-cooled internal combustion engine having at least one cylinder head and a cylinder block as a valve body (1a) a rotatable roller (2) with at least one to the lateral surface (2a) of the roller (2). Has open coolant passage (4a, 4b) and for rotatably supporting and receiving the roller (2) a valve housing (1b) with at least one coolant channel (5a, 5b), wherein the at least one coolant channel (5a, 5b) by adjusting the roller ( 2) with which at least one coolant passage (4a, 4b) is at least connectable and the ...

Method for reducing the particle emission of a spark-ignition internal combustion engine with direct injection and an internal combustion engine for carrying out such a method

Verfahren zur Verringerung der Partikelemission einer fremdgezündeten direkteinspritzenden Brennkraftmaschine mit mindestens einem Zylinder (1), bei der jeder Zylinder (1) eine Zündeinrichtung (3) zur Einleitung der Fremdzündung und eine Einspritzvorrichtung (4) zur direkten Einspritzung von Kraftstoff in den Brennraum (2) des Zylinders (1) aufweist, dadurch gekennzeichnet, dass - mindestens ein Zylinder (1) für mindestens ein Arbeitsspiel (n > 1) zur Reinigung der Einspritzvorrichtung (4) überstöchiometrisch (λ > 1) betrieben wird, und - die Bauteiltemperatur der Einspritzvorrichtung (4) des mindestens einen überstöchiometrisch (λ > 1) betriebenen Zylinders (1) angehoben wird, um die Oxidation von Verkokungsrückständen zur Reinigung zu unterstützen. Method for reducing particle emissions from a spark-ignited, direct-injection internal combustion engine with at least one cylinder (1), in which each cylinder (1) has an ignition device (3) for initiating spark-ignition and an injection device (4) for injecting fuel directly into the combustion chamber (2). of the cylinder (1), characterized in that - at least one cylinder (1) is operated superstoichiometrically (λ>1) for at least one working cycle (n>1) to clean the injection device (4), and - The component temperature of the injection device (4) of the at least one over-stoichiometric (λ> 1) operated cylinder (1) is raised in order to support the oxidation of coking residues for cleaning.

Slide bearing for an internal combustion engine

Die Erfindung betrifft ein Gleitlager (2), bei welchem es sich insbesondere um ein Kurbelwellenlager für eine Brennkraftmaschine handeln kann. Das Gleitlager (2) umfasst wenigstens eine Lagerschale (8, 9), welche einen kreisringförmigen oder kreisringabschnittsförmigen Basiskörper (10, 11) besitzt. Eine Innenseite (12) des Basiskörpers (10, 11) ist dazu ausgebildet, um mit einer äußeren Mantelfläche einer gegen die Lagerschale (8, 9) abstützbaren Welle (3) zumindest teilweise in Berührung zu stehen. Erfindungsgemäß ist auf einer der Innenseite (12) abgewandten Außenseite (13) des Basiskörpers (10, 11) wenigstens bereichsweise ein Dämmmittel (14) angeordnet, welches entweder aus Email oder alternativ oder in Ergänzung aus Keramik gebildet ist. Weiterhin ist die Erfindung auf eine Brennkraftmaschine mit einem solchen Gleitlager (2) sowie ein entsprechend ausgestattetes Fahrzeug gerichtet. The invention relates to a plain bearing (2), which may in particular be a crankshaft bearing for an internal combustion engine. The sliding bearing (2) comprises at least one bearing shell (8, 9), which has a circular ring-shaped or annular-ring-shaped base body (10, 11). An inner side (12) of the base body (10, 11) is designed to be at least partially in contact with an outer circumferential surface of a shaft (3) which can be braced against the bearing shell (8, 9). According to the invention, on one of the inner side (12) facing away from the outer side (13) of the base body (10, 11) at least partially an insulating means (14) is arranged, which is formed either of enamel or alternatively or in addition of ceramic. Furthermore, the invention is directed to an internal combustion engine with such a plain bearing (2) and a correspondingly equipped vehicle.

Internal combustion engine with liquid-cooled cylinder block and method for producing an associated cylinder block

Die Erfindung betrifft eine flüssigkeitsgekühlte Brennkraftmaschine mit mindestens einem Zylinderkopf (1) mit mindestens zwei entlang einer Zylinderkopf-Längsachse (1a) angeordneten Zylindern (3), der an einer Montage-Stirnseite (1b) mit einem Zylinderblock (2) verbunden ist, bei der- der Zylinderblock (2) im Bereich zwischen zwei benachbarten Zylindern (3) eine stegartige Bohrungsbrücke (2a) ausbildet,- jeder Zylinder (3) einen Brennraum umfasst, der durch einen zylinderzugehörigen Kolben, ein Zylinderrohr und den mindestens einen Zylinderkopf (1) mit ausgebildet ist, wobei der Kolben entlang einer Zylinderlängsachse (3a) translatorisch verschiebbar ist, und- der Zylinderblock (2) zur Ausbildung einer Flüssigkeitskühlung mit mindestens einem integrierten Kühlmittelmantel (4, 4a, 4b) ausgestattet ist, wobei sich mindestens ein Kühlmittelmantel (4, 4a, 4b) im Bereich der stegartigen Bohrungsbrücke (2a) erstreckt.Es soll eine flüssigkeitsgekühlte Brennkraftmaschine bereitgestellt werden, die hinsichtlich der Kühlung im Stegbereich (2a) des Zylinderblocks (2) verbessert ist.Erreicht wird dies mit einer Brennkraftmaschine, die dadurch gekennzeichnet ist, dass- der mindestens eine zylinderblockzugehörige Kühlmittelmantel (4, 4a, 4b) im Bereich der stegartigen Bohrungsbrücke (2a) einen sägeblattähnlichen Kühlmittelschlitz (4a) und mindestens einen bohrungsähnlichen Kühlmittelkanal (4b, 4b', 4b'') umfasst. The invention relates to a liquid-cooled internal combustion engine with at least one cylinder head (1) with at least two cylinders (3) arranged along a cylinder head longitudinal axis (1a), which is connected to a cylinder block (2) at an assembly end face (1b) - the cylinder block (2) forms a web-like bore bridge (2a) in the area between two adjacent cylinders (3), - each cylinder (3) comprises a combustion chamber which is provided with a cylinder-associated piston, a cylinder tube and the at least one cylinder head (1) is designed, wherein the piston is ...

Urea container as heat storage

Es wird ein Verfahren zum Speichern von Wärme in einer Anordnung mit einem Harnstoffbehälter bereitgestellt, wobei die Abwärme einer Brennkraftmaschine über Leitungen mit einem flüssigen Kühlmittel und/oder Öl zum Harnstoffbehälter übertragen und mittels Wärmeüberträger an die im Harnstoffbehälter enthaltene wässrige Harnstofflösung abgegeben wird. In der Harnstofflösung wird die Wärme gespeichert, um zum Erwärmen einer kalten Brennkraftmaschine wieder über die Leitungen an die Brennkraftmaschine abgegeben zu werden. A method is provided for storing heat in an arrangement with a urea container, wherein the waste heat of an internal combustion engine is transferred via lines with a liquid coolant and / or oil to the urea container and discharged by means of heat transfer to the aqueous urea solution contained in the urea container. In the urea solution, the heat is stored to be returned to the internal combustion engine via the lines for heating a cold internal combustion engine.

Liquid-cooled internal combustion engine with cooled cylinder head

Die Erfindung betrifft eine flüssigkeitsgekühlte Brennkraftmaschine umfassend mindestens einen Zylinderkopf mit mindestens zwei Zylindern, bei der – jeder Zylinder mindestens eine Auslassöffnung (3a, 3b) zum Abführen der Abgase via Abgasabführsystem aufweist, wobei sich an jede Auslassöffnung (3a, 3b) eine Abgasleitung (4a, 4b) anschliesst und die Abgasleitungen (4a, 4b) von mindestens zwei Zylindern innerhalb des Zylinderkopfes unter Ausbildung eines integrierten Abgaskrümmers (1) an einer Sammelstelle (8) zu einer Gesamtabgasleitung (6) zusammenführen, die aus einer Außenwandung des Zylinderkopfes austritt, und – mindestens ein im Zylinderkopf integrierter Kühlmittelmantel zur Ausbildung einer Flüssigkeitskühlung vorgesehen ist. Es soll eine flüssigkeitsgekühlte Brennkraftmaschine der oben genannten Art bereitgestellt werden, die hinsichtlich der Kühlung verbessert ist. Gelöst wird diese Aufgabe durch eine flüssigkeitsgekühlte Brennkraftmaschine der genannten Art, die dadurch gekennzeichnet ist, dass – der im Zylinderkopf integrierte Abgaskrümmer (1) abgasseitig zumindest bereichsweise mit einer Wärmeisolierung (2) versehen ist. The invention relates to a liquid-cooled internal combustion engine comprising at least one cylinder head with at least two cylinders, in which - each cylinder has at least one outlet opening (3a, 3b) for discharging the exhaust gases via Abgasabführsystem, wherein at each outlet opening (3a, 3b) an exhaust pipe (4a 4b) and the exhaust pipes (4a, 4b) of at least two cylinders within the cylinder head to form an integrated exhaust manifold (1) at a collection point (8) merge to an overall exhaust line (6) emerging from an outer wall of the cylinder head, and - At least one integrated in the cylinder head coolant jacket to form a liquid cooling is provided. It is intended to provide a liquid-cooled internal combustion engine of the above-mentioned type, which is improved in terms of cooling. This object is achieved by a liquid-cooled ...

A liquid-cooled internal combustion engine comprising a cylinder block and method for producing an associated cylinder block

Die Erfindung betrifft eine flüssigkeitsgekühlte Brennkraftmaschine mitmindestens einem Zylinderkopf mit mindestens einem Zylinder (3, 3a, 3b),mindestens einem mit dem mindestens einen Zylinderkopf verbundenen und als obere Kurbelgehäusehälfte dienenden Zylinderblock (1) zur Aufnahme mindestens eines Kolbens,jeder Zylinder (3, 3a, 3b) einen Brennraum umfasst, der durch den zylinderzugehörigen Kolben, ein Zylinderrohr (2, 2a, 2b) und den mindestens einen Zylinderkopf mit ausgebildet ist, wobei der Kolben entlang einer Zylinderlängsachse (7) translatorisch verschiebbar ist, undder Zylinderblock (1) mit einer Flüssigkeitskühlung ausgestattet ist.Es soll eine flüssigkeitsgekühlte Brennkraftmaschine bereitgestellt werden, die hinsichtlich des thermisch bedingten Bohrungsverzugs im Zylinderblock (1) verbessert ist.Erreicht wird dies mit einer Brennkraftmaschine, die dadurch gekennzeichnet ist, dassder Zylinderblock (1) zur Ausbildung einer Flüssigkeitskühlung mit mindestens einem integrierten Kühlmittelkanal (5, 5a, 5b) ausgestattet ist, wobei mindestens ein Kühlmittelkanal (5, 5a, 5b) unter Ausbildung von Schleifen entlang der Zylinderlängsachse (7) und beabstandet zum Zylinderrohr (2, 2a, 2b) mäandert, unddie Dichte der Schleifen in Richtung des mindestens einen Zylinderkopfes zunimmt.

Internal combustion engine with cylinder head and cooled turbine

Die Erfindung betrifft eine Brennkraftmaschine mit mindestens einem Zylinderkopf und mindestens einer Turbine (1), bei der – der mindestens eine Zylinderkopf mindestens einen Zylinder aufweist, wobei jeder Zylinder mindestens eine Auslassöffnung zum Abführen der Abgase aus dem Zylinder aufweist und sich an jede Auslassöffnung eine Abgasleitung anschließt, wobei mindestens eine Abgasleitung in die mindestens eine ein Turbinengehäuse (1a) aufweisende Turbine (1) mündet, welche mindestens einen Abgas durch das Turbinengehäuse (1a) führenden Strömungskanal (2) aufweist und welche mindestens ein in dem Turbinengehäuse (1a) auf einer drehbaren Welle (7) gelagertes Laufrad (6) umfasst. Es soll eine Brennkraftmaschine bereitgestellt werden, die hinsichtlich der Ausbildung der Kühlung der Turbine (1) optimiert ist. Gelöst wird diese Aufgabe durch eine Brennkraftmaschine der genannten Art, die dadurch gekennzeichnet ist, dass – zur Ausbildung einer Kühlung des Turbinengehäuses (1a) mindestens ein Kühlmittelkanal (3) vorgesehen ist, der durch mindestens eine Wandung (3a) begrenzt und ausgebildet ist, wobei die mindestens eine Wandung (3a) via mindestens einem Verbindungselement (4) mit dem Turbinengehäuse (1a) verbunden ist, wodurch der mindestens eine Kühlmittelkanal (3) brückenähnlich auf dem Turbinengehäuse (1a) angeordnet und gelagert ist.

Steuerventil zum Steuern eines Kühlmittelkreislaufs für einen Ladeluftkühler

Steuerventil (57) zum Steuern der Strömung eines ersten fluiden Mediums, welches ein Gehäuse (71), einen Strömungskanal (74) für das fluide Medium mit einem Einlass (72) und einem Auslass (73), einen Verschluss (75) zum mindestens teilweisen Öffnen und Schließen des Strömungskanals (74), einen Zugang (76) für mindestens ein zweites fluides Medium und ein Thermostat (77) mit einer strömungstechnischen Verbindung zu dem Strömungskanal (74) für das erste fluide Medium, wobei das Thermostat (77) zwischen dem Verschluss (75) und dem Auslass (73) angeordnet ist, umfasst, wobei das Steuerventil (57) eine erste Feder (78), die zwischen dem Verschluss (75) und dem Thermostat (77) angeordnet ist, und eine zweite Feder (79), die zwischen dem Thermostat (77) und dem Auslass (73) angeordnet ist und die erste Feder (78) in einer Anschlagposition hält, umfasst, wobei der Verschluss (75) durch den Druck des zweiten fluiden Mediums gegen den Druck der ersten Feder (78) bewegt werden kann und das Thermostat (77) dazu ausgelegt ist eine Öffnungskennlinie des Verschlusses (75) zu steuern, sodass der Verschluss (75) den Strömungskanal (74) des ersten fluiden Mediums in einem ersten Arbeitszustand verschließt und in einem zweiten Arbeitszustand mindestens teilweise öffnet.

Verfahren zum Beschichten einer Bohrung, Zylinderlaufbahn und Zylinderblock eines Verbrennungsmotors

Verfahren zum Herstellen einer beschichteten, inneren Oberfläche (4) einer beschichteten Bohrung (1) eines Verbrennungsmotors, wobei ein das die Bohrung (1) umgebende Grundmaterial aus der Gruppe der Materialen Magnesiumlegierung, Aluminiumlegierung, Grauguss und Stahlguss gewählt ist, umfassend zumindest die Schritte:- Herstellen eines im Rohling vorliegenden Basiskörpers (3);- Aufbohren der Bohrung (1) und Vorbearbeiten derselben;- Aufbringen einer Email-Beschichtung (2) auf die innere Oberfläche (4) der Bohrung (1), und- Nachbehandlung der beschichteten Bohrung (1), wobei sich die Email-Beschichtung (2) mit dem Grundwerkstoff der Bohrung (1) metallurgisch durch Phasenbildung verbindet; gekennzeichnet durch den weiteren Schritt des- Fertigbearbeitens der Email-Beschichtung (2) derart, dass in der Email-Beschichtung (2) vorhandene Poren (15) angeschnitten und offengelegt werden.

Brennkraftmaschine mit flüssigkeitsgekühlter Turbine

Brennkraftmaschine mit flüssigkeitsgekühlter Radialturbine (2), die mit einem Lagergehäuse (3a) verbunden ist, bei der- die Radialturbine (2) ein Turbinengehäuse (2a), in dem ein auf einer drehbaren Welle (4a) gelagertes Laufrad (4) angeordnet ist, umfasst, wobei sich im Gehäuse (2a) ausgehend von einer Abgaseintrittsöffnung ein Abgas führender Strömungskanal (5) spiralförmig um das Laufrad (4) erstreckt,- das Lagergehäuse (3a), welches zur Aufnahme der drehbar gelagerten Welle (4a) dient, an einer quer zur Welle (4a) verlaufenden Montage-Flanschfläche (6a) mit dem Turbinengehäuse (2a) verbunden ist, und- das Lagergehäuse (3a) zur Ausbildung einer Kühlung mindestens einen im Lagergehäuse (3a) integrierten Kühlmittelmantel (3b) aufweist, wobei dieser mindestens eine Kühlmittelmantel (3b) benachbart und beabstandet zur Montage-Flanschfläche (6a) in einem die Montage-Flanschfläche (6a) aufnehmenden und ausbildenden Flansch (6) angeordnet ist, und- das Turbinengehäuse (2a) zur Ausbildung einer Kühlung mindestens einen im Turbinengehäuse (2a) integrierten Kühlmittelkanal (2b) aufweist, wobei dieser mindestens eine Kühlmittelkanal (2b) sich im Turbinengehäuse (2a) zumindest abschnittsweise ringförmig um die Welle (4a) erstreckt und auf der dem Lagergehäuse (3a) abgewandten Seite des Laufrades (4) angeordnet ist, dadurch gekennzeichnet, dass der mindestens eine im Turbinengehäuse (2a) integrierte Kühlmittelkanal (2b) mit dem mindestens einen im Lagergehäuse (3a) integrierten Kühlmittelmantel (3b) via mindestens einem Verbindungskanal (7) verbunden ist, der geradlinig ist und parallel zur Welle (4a) verläuft, und welcher durch eine Gehäusezunge hindurchführt, welche das Turbinengehäuse (2a) am Ende des Abgas führenden Strömungskanals (5) ausbildet, wobei im Turbinengehäuse (2a) kein Kühlmittelmantel vorgesehen ist, der das Laufrad (4) einhüllt und ummantelt.

Kühlsystem für ein Fahrzeug mit Brennstoffzellen

Es wird ein Kühlsystem für ein elektrisch angetriebenes Fahrzeug mit Brennstoffzellen bereitgestellt, das mindestens einen ersten und einen zweiten Kühlmittelkreislauf aufweist, wobei der erste Kühlmittelkreislauf zum Kühlen der Brennstoffzellen ausgebildet ist, der zweite Kühlmittelkreislauf zum Kühlen von elektronischen Komponenten zum Steuern der Brennstoffzellen und zum Kühlen von elektronischen Komponenten des elektrischen Antriebssystems, wobei der zweite Kühlmittelkreislauf einen ersten Teilkühlmittelkreislauf und einen zweiten Teilkühlmittelkreislauf aufweist, worin der ersten Teilkühlmittelkreislauf im Bereich der elektronischen Komponenten zum Steuern der Brennstoffzellen angeordnet ist und der zweite Teilkühlmittelkreislauf im Bereich der elektronischen Komponenten des elektrischen Antriebssystems angeordnet ist. Es werden weiterhin ein Fahrzeug mit dem Kühlsystem und ein Verfahren zum Steuern des Kühlsystems bereitgestellt.

Advanced power electronic circuit for fuel cell vehicles enabling independent cooling of various systems

An electrified vehicle and cooling system for an electrified vehicle include fuel cells and at least one first and one second coolant circuit, wherein the first coolant circuit is configured for cooling the fuel cells and the second coolant circuit is configured for cooling electronic components for controlling the fuel cells and for cooling electronic components of an electric drive system, wherein the second coolant circuit has a first partial coolant circuit and a second partial coolant circuit, wherein the first partial coolant circuit is arranged in the region of the electronic components for controlling the fuel cells and the second partial coolant circuit is arranged in the region of the electronic components of the electric drive system.

Motoranordnung für ein Kraftfahrzeug

Die Erfindung betrifft eine Motoranordnung für ein Kraftfahrzeug, mit einem Motor (11), einer wenigstens einen Katalysator (16) aufweisenden Abgasnachbehandlungsanordnung (15) und einem Abgaswärmerückgewinnungssystem (17), wobei das Abgaswärmerückgewinnungssystem (17) bezogen auf den Abgasstrom stromaufwärts der Abgasnachbehandlungsanordnung (15) angeordnet ist.

Brennkraftmaschine mit flüssigkeitsgekühltem Zylinderkopf und flüssigkeitsgekühltem Zylinderblock

Die Erfindung betrifft eine flüssigkeitsgekühlte Brennkraftmaschine mit mindestens einem Zylinderkopf (2) und einem Zylinderblock (3), bei der – der mindestens eine Zylinderkopf (2) mit mindestens einem integrierten Kühlmittelmantel ausgestattet ist, wobei dieser erste Kühlmittelmantel einlassseitig eine erste Zuführöffnung (4a) zur Versorgung mit Kühlmittel und auslassseitig eine erste Abführöffnung (5a) zum Abführen des Kühlmittels aufweist, und – der Zylinderblock (3) mit mindestens einem integrierten Kühlmittelmantel ausgestattet ist, wobei dieser blockzugehörige Kühlmittelmantel einlassseitig eine zweite Zuführöffnung zur Versorgung mit Kühlmittel aufweist und auslassseitig eine zweite Abführöffnung zum Abführen des Kühlmittels vorgesehen ist. Es soll eine Brennkraftmaschine bereitgestellt werden, die hinsichtlich des Leitungssystems der Kühlung optimiert ist und insbesondere kompakt ist. Gelöst wird diese Aufgabe durch eine flüssigkeitsgekühlte Brennkraftmaschine, bei der – zur Ausbildung eines Kühlmittelkreislaufs die Abführöffnungen (5a) mit den Zuführöffnungen (4a) via einer modularen Baugruppe (1) zumindest verbindbar sind, wobei diese Baugruppe (1) benachbart zu einer kurzen Stirnseite des mindestens einen Zylinderkopfes (2) angeordnet ist und eine Pumpe (1) zur Förderung des Kühlmittels, eine der ersten Zuführöffnung (4a) zugeordnete erste Zuführanschlussstelle (4a`), eine der zweiten Zuführöffnung zugeordnete zweite Zuführanschlussstelle (4b`), eine der ersten Abführöffnung (5a) zugeordnete erste Abführanschlussstelle (5a`) und eine der zweiten Abführöffnung zugeordnete zweite Abführanschlussstelle (5b`) umfasst.

Kraftfahrzeug mit einem Radiator, der unterhalb eines Bodens des Kraftfahrzeugs angeordnet ist, und Verfahren zum Betreiben des Kraftfahrzeugs

Die Erfindung betrifft ein Kraftfahrzeug (1) mit einem Kühlkreislauf (41), der ein Kühlmedium aufweist, einem Boden (3), einem Radiator (5), der eingerichtet ist, von dem Kühlmedium durchströmt zu werden, unterhalb des Bodens (3) angeordnet ist und einen Betriebszustand hat, in dem der Radiator (5) eingerichtet ist, während einer Fahrt des Kraftfahrzeugs (1) von Luft in einer x-Richtung, die parallel zu der Fahrzeuglängsachse orientiert ist, durchströmt zu werden, und eine Vorderseite (6), via die während der Fahrt des Kraftfahrzeugs (1) die Luft in den Radiator (5) eintritt, sowie eine Rückseite (7) aufweist, via die die Luft während der Fahrt aus dem Radiator (5) austritt, und einer ersten vorderen Führung (11), die in dem Betriebszustand unmittelbar stromauf des Radiators (5) angeordnet ist und oberhalb der ersten vorderen Führung (11) einen stromaufwärtigen Kanal (16) begrenzt, der eingerichtet ist, die Luft auf den Radiator (5) zu leiten, wobei der Radiator (5) in dem Betriebszustand so gegen die x-Richtung geneigt angeordnet ist, dass die Normale (8) der Vorderseite (6) mit der x-Richtung einen ersten Winkel (α) einschließt, der in einem Bereich von 5° bis 85° liegt. Zudem betrifft die Erfindung ein Verfahren zum Betreiben des Kraftfahrzeugs (1).