53results about "Engine operating parameters" patented technology

A system is presented for analyzing lubricant composition of a vehicle engine. The system includes the vehicle engine; sensors; a controller in communication with the sensors; and a lubrication sampling apparatus coupled to the controller and the engine's lubrication system. The sampling apparatus is configured to: transfer a first sample of the lubricant into a first sample container and a second sample of the lubricant a second sample container. The controller is configured to: receive first sensor readings over a time period of the first sample and second sensor readings over a time period of the second sample; receive a composition analysis of the first sample and a composition analysis of the second sample; and generate a report comprising: the first composition analyses, the first sensor readings, the second composition analysis, and the second sensor readings.

A boat propulsion device includes an engine, an oil pan to store oil to be supplied to the engine, a case to accommodate at least a portion of the oil pan, and a pump to pump cooling water to a cooling water flow path in the boat propulsion device. The cooling water flow path includes a first flow path between the oil pan, the case, and the engine, and a second flow path branching from the first flow path at a location between the oil pan and the case and not extending to the engine. The boat propulsion device further includes a flow rate regulator to change at least one of a flow rate of the cooling water flowing into the first flow path and a flow rate of the cooling water flowing out of the first flow path.

A system includes a heater configured to heat a fluid of a lubricant system, a controller coupled to the heater, the controller including at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform operations including: receiving information regarding an engine operating parameter of an engine, receiving information regarding an operating parameter of the lubricant system, and activating the heater responsive to determining that at least one of the engine operating parameter or the operating parameter of the lubricant system is at or below a predefined threshold.

A system includes a heater for heating a fluid of a lubrication system, a controller coupled with the heater, the controller including at least one processor coupled with at least one memory device, the memory device storing instructions that when executed by the at least one processor, the at least one processor is configured to heat the fluid of the lubrication system. The controller is caused to receive information of an engine operating parameter, receive information about a lubrication system operating parameter, and activate the heater when it is determined that at least one of the engine operating parameter or the lubrication system operating parameter is at or below a predetermined threshold.

An oil temperature raising system and method for an environmentally friendly vehicle, the system comprising an oil temperature detector and a controller, the oil temperature detector being configured to detect the temperature of oil flowing to a motor and a transmission through an electric oil pump, the controller being configured to receive a detection signal of the oil temperature detector and to apply a current for raising the temperature to the motor when the oil temperature is less than a predetermined reference temperature. The temperature of the motor is raised by the current applied to the motor, so that the oil temperature is raised by the heat of the motor.

The inventio discloses a motor operation control method for an oil-gas separator to solve the problem that an existing oil-gas separator control strategy cannot minimize the operating speed under the precondition of satisfying operating requirements. The motor operation control method comprises: acquiring a plurality of groups of actual operating parameters output by a motor in a target operating state, establishing mapping relations according to the parameters, associating the mapping relations, and plotting a relation table; and acquiring a portion of operating parameters of the motor in a current operating state, searching for the mapping relations in the relation table to obtain other parameters, and adjusting corresponding parameter data with the obtained parameters as reference until the motor reaches the target operating state.

A closed crankcase ventilation system for removing blow-by gases, leaking from a combustion chamber, from a crankcase of an internal combustion engine. The system comprises a blow-by line extending between the crankcase and an air intake line of the internal combustion engine. When the engine is running, the air intake line provides a vacuum source for drawing blow-by gases from the crankcase through the blow-by line. A crankcase depression regulator is arranged in the blow-by line for regulating a level of vacuum inside the crankcase. At least one pressure sensor is arranged for measuring a pressure in the blow-by line relative to atmospheric pressure. A control unit is arranged for detecting leakages in the blow-by line by performing a diagnostic test based on a pressure measurement signal from a single pressure sensor.

A treatment device for treating a blowby gas of a hydrogen engine, the treatment device including: a catalyst unit provided in an exhaust flow path for circulating an exhaust gas from the hydrogen engine, the catalyst unit for reducing a nitrogen oxide contained in the exhaust gas by using hydrogen as a reducing agent; a scavenging flow path for circulating the blowby gas of the hydrogen engine; a scavenging pump provided in the scavenging flow path, the scavenging pump for scavenging the blowby gas from the hydrogen engine to circulate the blowby gas into the scavenging flow path; a hydrogen separation filter provided downstream of the scavenging pump in the scavenging flow path, the hydrogen separation filter for separating hydrogen contained in the blowby gas to generate, from the blowby gas, a hydrogen gas and a treated gas as a blowby gas obtained after removal of the hydrogen.

With its simple structure, it reliably prevents or suppresses the rise in internal pressure of the oil tank. [Solution] The system includes an on / off valve 15 provided between the oil tank 3 and a gas receiving section 10 that receives blow-by gas without leaking it to the outside, and a controller 19 that controls the on / off valve 15. The controller 19 includes a low-pressure determination unit that determines that the pressure inside the oil tank 3 is lower than a predetermined first reference pressure, a determination unit that determines that a predetermined condition other than the pressure inside the oil tank being lower than the first reference pressure has been met, and an opening control unit that opens the on / off valve 15 when the low-pressure determination unit determines that the pressure inside the oil tank is lower than the first reference pressure, or when the determination unit determines that a predetermined condition has been met.

The present invention provides an engine control device that can further reduce engine noise and vibration (NV) (i.e., improve the quietness of the engine). [Solution] The ECU 50 estimates the oil film thickness for each cylinder based on the crank angular velocity, engine load, and oil temperature corresponding to the expansion stroke of each cylinder, and corrects the ignition timing of cylinders whose estimated oil film thickness is thinner than a predetermined value.

The invention provides a control device for an internal combustion engine. The control device is configured to control the internal combustion engine. An internal combustion engine includes an intake passage, an electric motor, a supercharger, a flow rate adjustment valve, a crankcase, and first and second passages connected to the crankcase. The supercharger uses a motor to drive a compressor impeller provided in an intake passage. The flow rate adjustment valve is provided downstream of the compressor impeller in the intake passage. The control device is provided with a processing circuit configured so as to execute scavenging control for driving the motor in a state where the flow rate adjustment valve is closed when the internal combustion engine is stopped.

A rotating crankcase ventilation system comprises a housing comprising an inlet and an outlet, a motor comprising a stator and a rotor, and a shaft. A first end of the shaft is coupled to the rotor and configured to rotate in response to rotation of the rotor. A filter element is coupled to the shaft. A sensor is configured to measure at least one operating parameter of the rotating crankcase ventilation system. A controller is operatively coupled to the sensor and the motor, the controller configured to receive the at least one operating parameter and selectively adjust operation of the motor to adjust rotation of the rotor, and thereby, the filter element based on the at least one operating parameter.

An oil blending system for a marine diesel two-stroke engine and / or generator comprising: at least one sensor for monitoring a current lubrication oil status of a lubrication oil currently used in the engine and / or generator; a blender having at least one inlet for receiving lubrication oil and at least one other component, and at least one outlet for outputting a mixed lubrication oil composition to the engine and / or generator; and a blender controller. The blender controller is configured to receive parameter data on the current lubrication oil status from the at least one sensor for monitoring the current lubrication oil status, receive parameter data on a current status of the engine and / or generator, automatically determine whether the lubrication oil currently used in the engine and / or generator is within a predetermined parameter range based on the current status of the engine and / or generator, and if the lubrication oil currently used in the engine and / or generator is outside the predetermined parameter range, determine a new lubrication oil composition for the engine or generator.

To provide a treatment device which can reduce an inflammation risk of a blowby gas of a hydrogen engine.SOLUTION: A treatment device 1 comprises: a catalyst part 21 arranged at an exhaust flow passage 20, and reducing a nitrogen oxide included in an exhaust gas with hydrogen as a reductant; a scavenging flow passage 30 for making a blowby gas G1 circulate; a scavenging pump 31 arranged at the scavenging flow passage 30, scavenging the blowby gas G1 from an engine 100, and making it circulate to the scavenging flow passage 30; a hydrogen separation filter 32 arranged at a downstream side of the scavenging pump 31, and creating a hydrogen gas G2 and a treated gas G3 from the blowby gas G1 by separating hydrogen contained in the blowby gas G1; and a hydrogen gas addition part 45 for adding the hydrogen gas G2 to the catalyst part 21.SELECTED DRAWING: Figure 1

This internal combustion engine control device is provided with: a correlation index estimation unit that estimates a piston temperature correlation index having a correlation with the temperature of a piston, on the basis of an internal combustion engine operating condition parameter and an oil jet parameter for jetting oil to a rear surface of the piston; a hydraulic pressure setting unit that sets the hydraulic pressure of an oil jet on the basis of the piston temperature correlation index and a vaporization parameter of fuel that attaches to the piston. If the piston temperature correlation index is less than a first prescribed value which is determined, as the vaporization parameter, on the basis of a temperature corresponding to a fuel vaporizable condition, then the hydraulic pressure setting unit sets the hydraulic pressure of the oil jet at a hydraulic pressure at which jetting of the oil jet can be stopped.

An apparatus of diagnosing a blow-by gas recirculation system includes: a head portion of an engine forming a combustion chamber, a head cover provided above the head portion, a crankcase formed below the combustion chamber, an intake line through which intake air flows into the combustion chamber, a breather hose connecting the crankcase and the intake line upstream of a compressor mounted on the intake line, a PCV hose connecting the crankcase and a surge tank, and a controller. The controller is configured to preliminarily determine whether the breather hose is abnormal based on atmospheric pressure, a crankcase model pressure determined from an intake air flow rate flowing in through a throttle valve, and a crankcase internal pressure. The controller is configured to form negative pressure in the crankcase when it is preliminarily determined that the breather hose is abnormal, and finally determine whether the breather hose is abnormal.

A control device for an internal combustion engine, comprising: a piston injector for injecting lubricating oil onto the back of a piston; and an oil pump for varying the amount of lubricating oil dispensed per revolution, i.e., the unit dispensed quantity. The control device includes a processing circuit. When the oil temperature is below a predetermined temperature, the processing circuit closes an electrically operated valve located in the lubricating oil supply path to the piston injector, thereby stopping the injection of lubricating oil from the piston injector. During the period when the oil temperature is below the predetermined temperature and the injection of lubricating oil from the piston injector is stopped, the processing circuit maintains the unit dispensed quantity of lubricating oil from the oil pump at or above a predetermined amount.

A drain plug for a component of a vehicle includes: a plug body having a stem portion configured to plug a corresponding hole in the component of the vehicle, and a sensor module. The sensor module includes a sensor and a wireless transmitter configured to transmit data regarding a reading from the at least one sensor. The sensor includes at least one of a temperature sensor, a pressure sensor, and an accelerometer. A system for wireless monitoring a component of a vehicle includes: a plug body having a stem portion configured to plug a corresponding hole in the component of the vehicle, and a sensor module having at least one sensor and a wireless transmitter configured to transmit data regarding a reading from the at least one sensor. The system also includes a receiver located on the vehicle and configured to receive the data from the wireless transmitter.

Magnetic chip detectors (28) and associated for detecting metallic chips in engine fluid of an engine (10) are provided. A magnetic chip detector (28) includes first and second magnetic chip capture zones (36A, 36B). The first magnetic chip capture zone (36A) includes a first electrically conductive terminal (38A) spaced apart from a second electrically conductive terminal (38B) to define a first chip-receiving gap (G1) therebetween. The second magnetic chip capture zone (38B) includes a third electrically conductive terminal (38C) and either the second electrically conductive terminal (38B) or a fourth electrically conductive terminal (38D) to define a second chip-receiving gap (G2) therebetween. The magnetic chip detector (28) includes an electric circuit (34) including both the first chip-receiving gap (G1) and the second chip-receiving gap (G2). The electric circuit (34) provides an output indicative of a chip detection by one or both of the first magnetic chip capture zone (38A) and the second magnetic capture zone (38B).

Provided is a dry sump engine which has a simple structure and reliably prevents or suppresses an increase in the internal pressure of an oil tank. The present invention is provided with: an on-off valve (15) that is provided between a fuel tank (3) and a gas receiving section (10) that receives blow-by gas without leaking to the outside; and a controller (19) that controls the on-off valve (15). The controller (19) has: a low-pressure determination unit that determines whether or not the pressure inside the tank (3) is lower than a preset first reference pressure; a determination unit that determines whether a predetermined condition is satisfied except that the pressure inside the tank is lower than the first reference pressure; and an opening control unit that opens the on-off valve (15) when the low-pressure determination unit determines that the pressure inside the tank is lower than the first reference pressure, or when the determination unit determines that the predetermined condition is satisfied.

A fluid delivery system is provided including a reservoir (105) including oil, a hydraulic pump (110) in fluid communication with the reservoir (105), and a heat exchanger system (123). The heat exchanger system (123) is in fluid communication with the hydraulic pump (110), a generator (135), and an engine gearbox (137). The hydraulic pump (110) is configured to deliver the oil to the heat exchanger system (123). The heat exchanger system (123) is configured to provide the oil according to first temperature criteria to the generator (135) and provide the oil according to second temperature criteria to the engine gearbox (137).

The invention relates to a breather system (10) for a crankcase (102) of an internal combustion engine (100) operable with a gaseous fuel, in particular for a crankcase (102) of a hydrogen internal combustion engine, in which leakage gas containing the fuel and / or reaction products of the fuel enters the crankcase (102) during the combustion process, with a leakage gas discharge line (14) for discharging from the crankcase (102) a gas mixture (G) comprising a ventilation gas and leakage gas introduced into the crankcase (102) and one or more flow adjustment devices (16a, 16b) for adjusting the volume flow of the ventilation gas introduced into the crankcase (102) and / or the volume flow of the gas mixture (G) discharged from the crankcase (102), wherein one flow adjustment device (16a) is designed as a centrifugal separator, in particular as a disk separator, for conveying the discharged gas mixture (G) through the leakage gas discharge line (14).

The present invention discloses an improved structure of a split-type oil channel of an oil filter base and an oil cooler connecting base in a vehicle, including an oil filter base, where a lower portion of the oil filter base is provided with an oil inlet, an oil outlet, and an oil return port, an end portion of the oil filter base is provided with an antifreeze solution water inlet, a bottom portion thereof is provided with a first water outlet and a second water outlet that are communicated with the antifreeze solution water inlet, an oil cooler is mounted on an upper portion of one end, away from a filter cartridge, of the oil filter base, an oil cooler connecting base is disposed between the oil filter base and the oil cooler, a surface of one side, close to the oil cooler.

To scavenge air inside a crank case even when an internal combustion engine is stopped.SOLUTION: An internal combustion engine 10 includes: an intake passage; a supercharger 24 which drives a compressor wheel 24C provided in the intake passage by a motor 24M; a flow rate adjustment valve 40 provided on a downstream side from the compressor wheel 24C in the intake passage; a first passage communicating the intake passage between the compressor wheel 24C and the flow rate adjustment valve 40 and the crank case 19; and a second passage communicating the intake passage on a downstream side from the flow rate adjustment valve 40 with the crank case 19. When the engine is stopped, the control device 100 executes scavenging control for driving the motor 24M with the flow rate adjustment valve 40 closed.SELECTED DRAWING: Figure 1

The present invention relates to a method for monitoring the ventilation of a crankcase (120) of an internal combustion engine (100), and to an internal combustion engine (100). The internal combustion engine (100) has combustion chambers (110) and a nitrogen oxide sensor (140) which is arranged in the exhaust gas tract (130) of the internal combustion engine (100) and designed to detect the nitrogen oxide content in the exhaust gas of the internal combustion engine (100). The method according to the invention comprises determining a predefined operating mode of the internal combustion engine (100) during which essentially no combustion takes place inside the combustion chambers (110), determining a nitrogen oxide content in the exhaust gas of the internal combustion engine (100) during the predefined operating mode of the internal combustion engine (100) by means of the exhaust gas sensor (140), and determining an operational ventilation of the crankcase (120) if the nitrogen oxide value determined during the predefined operating mode of the internal combustion engine (100) exceeds a predetermined nitrogen oxide threshold value.

The present invention relates to a temperature management system for a lubricant (3) contained in a lubricant reservoir (1) of a compressor system (2) for a heat pump that pumps a working medium. The invention also relates to a method for controlling a lubricant temperature of a lubricant (3) present in a lubricant reservoir (1) of a compressor system (2) for a heat pump that pumps a working medium. The invention also relates to a heat pump having a temperature management system designed according to the invention. The invention allows the temperature of the lubricant (3) to be set flexibly, dynamically and in line with requirements, in order to increase the service life of the lubricant and improve the operating performance of the heat pump.

A fluid delivery system is provided including a reservoir including oil, a hydraulic pump in fluid communication with the reservoir, and a heat exchanger system. The heat exchanger system is in fluid communication with the hydraulic pump, a generator, and an engine gearbox. The hydraulic pump is configured to deliver the oil to the heat exchanger system. The heat exchanger system is configured to provide the oil according to first temperature criteria to the generator and provide the oil according to second temperature criteria to the engine gearbox.

A lubricating system of an engine equipped with an idle reduction system includes an oil cooler, a remotely operable valve configured to open / close a bypass passage that bypasses the oil cooler, and an electronic control unit. The electronic control unit is configured to perform the steps of: controlling the valve so that a temperature of lubricating oil approaches a target temperature; and lowering the target temperature when an average torque of the engine is less than a predetermined threshold.

The invention relates to a breather system (10) for a crankcase (102) of an internal combustion engine (100) which can be operated with a gaseous fuel, in particular for a crankcase (102) of a hydrogen combustion engine, in which breather system (10) leakage gas which contains the fuel and / or reaction products of the fuel passes during the combustion operation into the crankcase (102). The breather system comprises a leakage gas discharge line (14) for discharging a ventilation gas which is introduced into the crankcase (102) and gas mixture (G) which includes leakage gas from the crankcase (102), and one or more flow setting devices (16a, 16b) for setting the volumetric flow of the ventilation gas which is introduced into the crankcase (102) and / or the volumetric flow of the gas mixture (G) which is discharged from the crankcase (102), wherein a flow setting device (16a) is in the form of a centrifugal separator, in particular as a disc separator, for conveying the discharged gas mixture (G) through the leakage gas discharge line (14).

A method (200) for operating an active oil separator (104) for separating oil and mist particles from the exhaust air of an internal combustion engine's crankcase is provided. The method acquires (202) engine operating parameters, including coolant temperature, engine oil temperature, and engine speed, to determine (204) a base setpoint speed of the oil separator (104) using a first control strategy. In the event of a temperature acquisition error and a positive detection of an engine high-temperature condition, a secondary control strategy (208) is activated, which reduces the engine and oil separator speeds (104) to maintain negative crankcase pressure. An electric motor (102) drives the oil separator (104) at a preferred speed, modulating (212) the armature voltage via an H-bridge circuit (116) and applying (214) pulse-width modulation control, thereby ensuring robust and efficient operation.This approach ensures continuous, efficient operation while complying with legal regulations under various thermal engine conditions.