58results about How to "Reduce misfire" patented technology

Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, an amount of water in charge air exiting the CAC may be based on an output of an oxygen sensor positioned downstream of the CAC. Further, engine actuators may be adjusted to increase combustion stability and / or reduce condensate formation based on the amount of water exiting the CAC.

The invention provides a drug dispensing method and a system, and relates to the technical field of drug dispensing. The method includes: S1, a controller receives to-be-dispensed drug information and sends the to-be-dispensed drug information to a dispensing device; S2, when indicating signals of a third signal indicating device and indicating signals of a first signal indicating device of a drug storage device are matched, drugs displayed by a third digital display device are obtained at a corresponding position of the drug storage device; S3, the obtained drugs are placed on a corresponding drug placement box when an indicating signal lamp of a second signal indicating device is turned on so that the dispensing process of a certain drug in the to-be-dispensed drug information is accomplished; and S4, the process of the dispensing device is performed according to a preset way, and the steps S2 and S3 are repeated until the dispensing of all the drugs in the to-be-dispensed drug information is accomplished. According to the drug dispensing method and the system, the efficiency for drug dispensing of dispensaries can be greatly improved, the waiting time for drug taking for patients is effectively reduced, and errors due to manual negligent monitoring in a dispensing process can be reduced.

The invention discloses a fireproof alarm type explosion-proof control cabinet which comprises a cabinet body. A sucker is fixedly connected to the inner wall of the top of the cabinet body, an air bag is fixedly connected to the outer wall of one end of the sucker, a protective cover is arranged on the inner wall of the top of the cabinet body, and supporting rods are arranged on the inner wallsof the two sides of the protective cover. When a temperature sensor detects that the interior of the cabinet body exceeds a set threshold value, an electric push rod is automatically started, the electric push rod drives a steel needle to extend to puncture an air bag, and therefore dry powder fire extinguishing materials contained in the air bag can be sprayed out, and fire extinguishing work canbe conducted on the cabinet body. When the air bag is punctured, larger air flow is generated and blows the first fan blades to be rotated,, meanwhile, the multiple fan blades are connected through atraction rope, and therefore the multiple fan blades can irregularly rotate when the air bag explodes, sprayed dry powder extinguishing materials can be evenly dispersed, and fire disasters caused bydead corners are avoided.

A control system and method for operating an engine includes a transition module that commands engine control from a first homogeneous charge compression (HCCI) mode to a second HCCI mode. The control system also includes a fuel delivery module that operates the engine in a stratified charge operation mode after commanding engine control from the first HCCI mode to the second HCCI mode and discontinues the stratified charge operation thereafter.

Provided is a manufacturing method for manufacturing a spark plug which produces a spark plug which mitigates misfire and improves gas mileage, peak engine performance, horsepower, and increases the RPM range of the host vehicle. The improved performance of the spark plug is, at least in part, attributable to the spacing between an electrode body and an electrode cage. In particular, the electrode cage extends over the electrode body such that the arcuate members of the electrode cage are equidistantly spaced from the bulbous or spherical electrode body. The manufacturing method described herein results in a spark plug having the above-described configuration, while being formed and assembled at an economical cost.

An engine system and method for improving engine starting are disclosed. In one example, engine port throttles are adjusted to improve fuel vaporization of a fuel that includes alcohol. The system and method may improve engine starting and emissions.

Methods and systems are provided for removing condensate from a charge air cooler. Condensate may be drained from the charge air cooler and introduced into a positive crankcase ventilation flow or an engine oil sump. Introducing condensate into the engine oil sump may be controlled based on conditions of the engine oil sump and stored condensate.

The invention provides an atmospheric calibration method, an atmospheric calibration device and an atmospheric calibration system for an oxygen sensor, and the method comprises the steps: an obtainingstep: obtaining the state parameters of an engine cyclically recorded by a previous key under the condition that a starting command of a gas unit is received, wherein the state parameters comprise amisfire rate and / or a knocking rate; a determination step: determining that the oxygen sensor needs to be subjected to atmospheric calibration under the condition that the state parameter is greater than a corresponding predetermined threshold value; a control step: controlling a gas turbine unit to execute preset operation so that fresh air exists in a preset area around the oxygen sensor, controlling the oxygen sensor to be heated to a preset temperature so that the oxygen sensor is enabled to automatically conduct detection, and obtaining detection data, wherein the preset area is the areain the exhaust pipe; and a processing step: receiving the detection data, and determining a first correction coefficient according to the detection data. According to the method, the oxygen sensor does not need to be detached for atmospheric calibration, and labor cost and time cost are reduced.

Methods and systems are provided for cleaning out condensate stored at a charge air cooler. In response to increased condensate accumulation at a charge air cooler, airflow through the engine is increased to purge the condensate while an engine actuator is adjusted to maintain engine torque. Combustion stability issues of engine cylinders are addressed by adjusting fueling of each cylinder individually during condensate ingestion.

The invention discloses a control system for a wireless detonator. The control system comprises a controller, wireless communication equipment, a server, a first client end and a second client end, wherein the controller is used for sending a first detonating request input by a blaster to the server through the wireless communication equipment; the first client end is used for sending security alert information input by an administrator to the server; and the server is used for sending the first detonating request and the security alert information to the second client end, receiving a seconddetonating request sent by the second client end, and sending the second detonating request to the first client end. The first client end is also used for sending a detonating instruction to the server, and the server is also used for sending the detonating instruction to the controller through the wireless communication equipment, so that the controller controls the detonator to be detonated according to the detonating instruction. Thus, the phenomenon of mistaken detonation can be reduced, and the security is improved.

The invention provides a method for expanding and optimizing compression ignition operation range of an internal combustion engine applying variable valves. The internal combustion engine comprises intake valves, exhaust valves and electromagnetic full-variable valve devices, the intake valves and the exhaust valves are respectively provided with the electromagnetic full-variable valve devices forcontrolling the opening lift size and the opening phase angle of the intake valves and the exhaust valves; the electromagnetic full-variable valve devices drive the exhaust valves to open during an exhaust stroke period, so that exhaust gas starts to be discharged out of a cylinder; at some point of the exhaust stroke, the intake valves are driven to open, so that part of exhaust gas flows back into an intake manifold; and the lift for controlling the opening of the intake valves by the electromagnetic full-variable valve devices is decreased as the engine load is increased. According to themethod for expanding and optimizing compression ignition operation range of the internal combustion engine applying the variable valves, the small EGR rate can be adopted at high load to reduce severecombustion or knocking in the homogeneous compression ignition process, and the larger EGR rate can be adopted at low load to reduce incomplete combustion or misfire in the homogeneous compression ignition process, so that the homogeneous compression ignition operates in a larger operating range.

The invention discloses a spark ignition engine and a control method thereof. The spark ignition engine includes a main combustion chamber configured to suction a mixture through an intake port, a pre-chamber configured to communicate with the main combustion chamber, an auxiliary cylinder configured to communicate with the main combustion chamber via the pre-chamber, an auxiliary intake passage connecting the auxiliary cylinder and the intake port, an auxiliary piston, and a spark plug configured to ignite the mixture in the pre-chamber. The auxiliary piston is configured to slidably reciprocate in the auxiliary cylinder such that the mixture is suctioned from the intake port via the auxiliary intake passage and the mixture is discharged to the main combustion chamber via the pre-chamber.

The gas engine of the present invention has a pilot oil fuel valve, a pilot oil pump, and first and second pipes connected to a pilot oil main pipe, for each of a plurality of combustion chambers. An operating pilot oil tank and an ignition stimulant-added pilot oil tank are connected via a switching valve to a third pipe, connected to an end of the pilot oil main pipe. Before operating stops, the pilot oil is discharged by opening an exhaust valve, and thereafter, the switching valve is switched and pilot oil which the ignition stimulant has been added to is supplied into the pipe. Consequently, the pilot oil downstream from the main pipe is replaced with the pilot oil which the ignition stimulant has been added to. Therefore, at the time of the next activation, pilot oil which the ignition stimulant has been added to is sprayed from the fuel valve, and, as a result, misfire at the time of activation is reduced, and a highly reliable engine is obtained.

The invention provides a gas plug valve and a gas stove, and relates to the technical field of stoves. The gas plug valve comprises a valve body, a valve element and a valve rod. A valve cavity is formed in the valve body, and the side portion of the valve cavity communicates with an inner ring passageway and an outer ring passageway. The valve element is rotationally embedded into the valve cavity, a vent cavity is formed in the valve element, and an inner ring vent hole and an outer ring vent hole are formed in the side wall of the vent cavity. An annular boss is arranged on the inner wall of the vent cavity in the circumferential direction of the vent cavity. The valve rod is inserted into the vent cavity from top to bottom, the valve rod is provided with a partition part, when the valve rod is pressed down, the vent cavity can be partitioned into an upper chamber and a lower chamber through the partition part and the annular boss, and the upper chamber and the lower chamber can communicate with each other through a pressure relief passageway. The gas stove comprises a burner and the gas plug valve. The outer ring passageway communicates with an outer ring nozzle of the burner,and the inner ring passageway communicates with an inner ring nozzle. During ignition of the gas plug valve, inner ring fire of the burner is stably ignited, the ignition time is also short when outerring fire needs to be used, and the use experience of a user is good.

Methods and systems are provided for performing a multiple gear downshift of a transmission gear by transiently operating in an intermediate gear. In response to ambient humidity and a condensate level in a charge air cooler, the transmission gear may be downshifted from a higher gear to an intermediate gear, and then to a requested lower gear. Downshifting through an intermediate gear may also be controlled based on the gear shift request.

Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, engine operation may be adjusted responsive to water storage parameters at the CAC, the water storage parameters based on an output of a first oxygen sensor positioned downstream of the CAC and a second oxygen sensor positioned upstream of the CAC. Further, operation of the first oxygen sensor and the second oxygen sensor may be diagnosed during certain engine operation conditions wherein no condensate is forming in the CAC.

The invention discloses a cutting device for a polystyrene external wall insulation board. The cutting device comprises a base table, a fixed supporting frame fixedly arranged on the base table, a movable frame arranged on the base table in the mode of sliding front and back so as to get close to or get away from the fixed supporting frame, and a transverse cutting frame where a plurality of cutting wires are erected. The fixed supporting frame and the movable frame are each provided with supporting rods horizontally extending in the opposite directions and positioning parts arranged on the supporting rods. The supporting rods are distributed into multiple layers and correspond to the cutting wires, and each layer is provided with at least two supporting rods. According to the cutting device, positioning of polystyrene blocks is achieved through the multiple layers of supporting rods distributed up and down and the positioning parts; through arrangement of the supporting rods, a movement space is provided for the transverse cutting frame, multiple sheets can be cut at a time, and the cutting efficiency is greatly improved; and meanwhile, the multiple layers are positioned separately, so that the effect that the corresponding upper layer does not fall off after cutting is completed is ensured, a certain heat dissipation space is reserved for the cutting wires, and heat is prevented from being accumulated.

A candle set in which the combustion wicks of a plurality of candles held safely and surely in butting state can be fired all at once by means of flame of a match, a lighter, or the like, fireworks are displayed as an opening show until the combustion wicks are fired all at once so that persons in a meeting place enjoy the fireworks thus boosting the atmosphere of the meeting place. Around a column (1) supported on a supporting base (7), a plurality of petal pieces (2) are supported to open / close freely in the vertical direction such that when each petal piece (2) takes a close position, a candle (5) fixed to the distal end of each petal piece (2) lies low to hold the combustion wick (5a) in butting state above the column, each petal piece (2) is deployed when the combustion wicks (5a) are fired all at once and the candle (5) fired at an open position is erected on each petal piece (2). In such a candle set, a blasting rod (13) having a blasting powder layer (14) containing components of wireworks formed around a core (13a) is stood on the column (1), and the combustion wick (5a) of each candle (5) is arranged in butting state around the blasting powder layer (14) close to the proximal portion of the blasting rod (13).

The gas engine of the present invention has a pilot oil fuel valve, a pilot oil pump, and first and second pipes connected to a pilot oil main pipe, for each of a plurality of combustion chambers. An operating pilot oil tank and an ignition stimulant-added pilot oil tank are connected via a switching valve to a third pipe, connected to an end of the pilot oil main pipe. Before operating stops, the pilot oil is discharged by opening an exhaust valve, and thereafter, the switching valve is switched and pilot oil which the ignition stimulant has been added to is supplied into the pipe. Consequently, the pilot oil downstream from the main pipe is replaced with the pilot oil which the ignition stimulant has been added to. Therefore, at the time of the next activation, pilot oil which the ignition stimulant has been added to is sprayed from the fuel valve, and, as a result, misfire at the time of activation is reduced, and a highly reliable engine is obtained.

The invention relates to an efficient flame burner. The problems that combustible gas jetted by a burner is insufficient in combusting, and the length of flames is not enough are solved. The efficient flame burner comprises a sleeve, a gas mixing mechanism and a jetting pipe; the sleeve comprises a gas pipe and a combustion-supporting pipe, the tail end of the gas pipe is communicated with a volatilization pipe, and through holes are evenly formed in the periphery of the volatilization pipe; and the gas mixing mechanism comprises a fairing and a rotating wheel, wherein the fairing comprises a rear fairing body and a front fairing body. The rear fairing body is fixedly welded to the tail end of the combustion-supporting pipe through a connecting pipe; and the rotating wheel comprises a supporting frame and blades, the jetting pipe is of a conical hollow structure, and a flow guide piece is arranged at the front end of the jetting pipe. The problem that insufficient mixing is caused by parallel blowing of two strands of air flows of combustion-supporting gas and combustible gas is solved, and the combustible gas can be sufficiently combusted.

The invention discloses a control system and a control method of an oil / gas dual-fuel engine in electronic control oil supply. The control system comprises a high-pressure common-rail injection system, a fuel gas injection system and an oil / gas dual-fuel electronic control system, wherein the oil / gas dual-fuel electronic control system comprises a sensor part, an actuator, a dual-fuel ECU (Electronic Control Unit) and a fuel oil ECU, the oil / gas dual-fuel electronic control system controls the diesel oil amount through an oil injector, the fuel gas amount through a fuel gas control injection nozzle and the air inlet amount through an electronic throttling valve body, and an air-fuel ratio when the oil / gas dual-fuel engine works can be detected and controlled in a closed loop feedback way through a wide-domain oxygen sensor. According to the control method disclosed by the invention, the oil / gas dual-fuel engine can be switched under a pure fuel oil working mode and a fuel oil / fuel gas dual-fuel working mode, the good running of the oil / gas dual-fuel engine can be controlled, the diesel injection amount can be accurately controlled according to different working states of a diesel engine, the injection time, the injection duration, the air inlet amount and the air-fuel ratio of gas fuel can also be controlled, thus the safe and stable running of the dual-fuel engine can be ensured, the fuel consumption can be reduced, and the exhaust gas emission can be reduced.

The invention relates to systems and methods for diagnosing air and fuel offsets in a prechamber. Methods and systems are provided for a vehicle engine having a pre-chamber ignition system. In one example, a method may include adjusting one or more of an air injection amount and a fuel injection amount to a pre-chamber of an engine based on an air injection offset and a fuel injection offset learned while discontinuing fueling to cylinders of the engine and reducing air flow through the engine. In this way, air and fuel may be more accurately provided to the pre-chamber, thereby decreasing an occurrence of pre-chamber misfire.

Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, an amount of water accumulating in the CAC may be based on an output of an oxygen sensor positioned downstream of the CAC and ambient humidity. Further, engine actuators may be adjusted to purge condensate from the CAC and / or reduce condensate formation based on the amount of water inside the CAC.

The invention discloses a control system for a wireless detonator. The control system comprises a controller, wireless communication equipment, a server, a first client end and a second client end, wherein the controller is used for sending a first detonating request input by a blaster to the server through the wireless communication equipment; the first client end is used for sending security alert information input by an administrator to the server; and the server is used for sending the first detonating request and the security alert information to the second client end, receiving a seconddetonating request sent by the second client end, and sending the second detonating request to the first client end. The first client end is also used for sending a detonating instruction to the server, and the server is also used for sending the detonating instruction to the controller through the wireless communication equipment, so that the controller controls the detonator to be detonated according to the detonating instruction. Thus, the phenomenon of mistaken detonation can be reduced, and the security is improved.

A method for compensating for thermal transient conditions of an engine that can cause valve growth or contraction is disclosed. In one example, the method provides cylinder air amount compensation during non-blow-through and blow-through conditions. The approach may improve cylinder air amount estimates, thereby improving engine emissions.

A vaporizing burner (100), wherein a seeping prevention member (200), which is a member having a lower rate of fuel permeation than an impregnated member (wick) (120), the rate of fuel permeation being a property value corresponding to the rate of permeation of fuel, is disposed in a facing region, which is a surface region of the impregnated member that faces, across the impregnated member, an impregnation region that is a surface region of the impregnated member through which fuel supplied at least from a fuel supply section (130) passes into the impregnated member. Due to this configuration, fuel supplied to the impregnated member from the fuel supply section can be uniformly distributed in the interior of the impregnated member, and fuel ignition and steady combustion can be achieved at an earlier stage. Preferably, a part of the seeping prevention member is embedded in the interior of the impregnated member, and the other part protrudes out from the surface of the impregnated member. More preferably, the seeping prevention member is configured as a part of a partition member that is disposed further downstream than the impregnated member in a combustion chamber (110).

Methods and systems are provided for controlling LP-EGR flow in a variable displacement engine. In one example, a method may include providing a higher fixed LP-EGR percentage relative to a total intake air flow during a VDE mode, and providing a lower fixed EGR percentage relative to the total intake air flow during a non-VDE mode. Further, during a tip-out when operating in the VDE mode at a load below a threshold, transitioning out of the VDE mode after transitioning the LP-EGR from the higher fixed percentage to the lower fixed percentage.