Abstract: 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.

Abstract: 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.

Abstract: A method for partial cylinder cutoff is provided. The method comprises operating a multi-cylinder internal combustion engine with applied ignition, in which an odd number n of cylinders is arranged in line, and during partial-load operation when engine load is below threshold, enabling a partial cutoff of the cylinders, the partial cutoff comprising operating each cylinder only intermittently such that each cylinder is fired and cut off in turn at an interval of (2*720° CA)/n.

Abstract: 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.

Abstract: The disclosure relates to a control valve for a medium circuit of an internal combustion engine, in particular to a thermostat of a coolant circuit of the internal combustion engine. The control valve includes a valve housing, an expansible material element arranged in a valve body, an energy accumulator having an abutment element, a valve seat, and at least one locking element arranged on the abutment element, each locking element having a counter-latching face. The control valve has a first position wherein the counter-latching face of each locking element is in a non-positive connection with a corresponding latching face of the valve housing in order to force the control valve into a mechanically blocked, forced-open position, the latching face being formed by means of an opening edge in the valve housing. This position may enable a quick and reliable initial filling or refilling of the coolant circuit.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method for partial cylinder cutoff is provided. The method comprises operating a multi-cylinder internal combustion engine with applied ignition, in which an odd number n of cylinders is arranged in line, and during partial-load operation when engine load is below threshold, enabling a partial cutoff of the cylinders, the partial cutoff comprising operating each cylinder only intermittently such that each cylinder is fired and cut off in turn at an interval of (2*720° CA)/n.

Abstract: 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.

Abstract: A method for partial cylinder cutoff is provided. The method comprises operating a multi-cylinder internal combustion engine with applied ignition, in which an odd number n of cylinders is arranged in line, and during partial-load operation when engine load is below threshold, enabling a partial cutoff of the cylinders, the partial cutoff comprising operating each cylinder only intermittently such that each cylinder is fired and cut off in turn at an interval of (2*720° CA)/n.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method for partial cylinder cutoff is provided. The method comprises operating a multi-cylinder internal combustion engine with applied ignition, in which an odd number n of cylinders is arranged in line, and during partial-load operation when engine load is below threshold, enabling a partial cutoff of the cylinders, the partial cutoff comprising operating each cylinder only intermittently such that each cylinder is fired and cut off in turn at an interval of (2*720° CA)/n.

Abstract: The disclosure relates to a control valve for a medium circuit of an internal combustion engine, in particular to a thermostat of a coolant circuit of the internal combustion engine. The control valve includes a valve housing, an expansible material element arranged in a valve body, an energy accumulator having an abutment element, a valve seat, and at least one locking element arranged on the abutment element, each locking element having a counter-latching face. The control valve has a first position wherein the counter-latching face of each locking element is in a non-positive connection with a corresponding latching face of the valve housing in order to force the control valve into a mechanically blocked, forced-open position, the latching face being formed by means of an opening edge in the valve housing. This position may enable a quick and reliable initial filling or refilling of the coolant circuit.

Abstract: The invention relates to a method for cooling the charge air of an internal combustion engine. The charge-air cooler is arranged with a pump and a heat exchanger in a coolant circuit. The temperature of the charge air is detected via a temperature sensor and passed on to a regulating unit. As a function of this temperature and, if appropriate, of further engine operating parameters, the regulating unit controls the pump and, if included, the fan of the heat exchanger. Thus, in particular, when the engine is started cold or at a partial load, a higher charge-air temperature can be permitted by switching off or throttle the pump and/or the fan. This not only better matches the charge-air temperature to the engine operation, but also saves on energy for the operation of the pump and/or the fan.