37results about How to "Improve exhaust quality" patented technology

The invention relates to a method of operating an internal combustion engine operated on gasoline type fuels, more specifically on gasoline, wherein ignition of the fuel-air mixture is initiated spontaneously in at least one operational range of the engine, preferably in the part load range, and wherein a stratified charge is produced in the combustion chamber, preferably in the higher load range. In order to achieve in the simplest possible manner high exhaust quality for an internal combustion engine operated on fuel with poor ignition characteristics in the range of higher mean pressures as well there is provided that combustion is initiated by spontaneous ignition of the fuel in the full load range as well and that preferably the in-cylinder charge temperature is controlled throughout the load range by way of internal exhaust gas recirculation and that, in the full load range, the start of fuel injection occurs after top dead center.

An idle stop condition determination method of an engine includes: calculating and storing a fuel saving estimation amount in idle stop of an engine on the basis of traveling information; calculating the amount of fuel consumption in restarting for restarting, when an idle stop condition of the engine is satisfied; comparing the magnitudes of the fuel saving estimation amount with the amount of fuel consumption in restarting, and stopping the engine in accordance with the result of the comparing; and restarting the engine, when a restarting condition of the engine is satisfied.

An engine system may include a thermostat casing connected to a first, second, third, and fourth flow channels, a valve guide in which a main valve that opens and closes the first flow channel is formed at one side, a closing valve that opens and closes the second flow channel is formed at the other side, and a bypass valve is formed adjacent to the closing valve, an elastic member that elastically supports the valve guide to enable the main valve to block the first flow channel and the closing valve to block the second flow channel, a driver that moves the valve guide so that the main valve opens the first flow channel and the closing valve opens the second flow channel according to a temperature of a coolant, and a control unit that controls the temperature and a flow of the coolant by controlling the driver.

An idle stop condition determination method of an engine includes: calculating and storing a fuel saving estimation amount in idle stop of an engine on the basis of traveling information; calculating the amount of fuel consumption in restarting for restarting, when an idle stop condition of the engine is satisfied; comparing the magnitudes of the fuel saving estimation amount with the amount of fuel consumption in restarting, and stopping the engine in accordance with the result of the comparing; and restarting the engine, when a restarting condition of the engine is satisfied.

The invention discloses a particle processing device of a printer. The particle processing device mainly comprises a closed casing, and an ultraviolet degradation box and a centrifugal fan and a discharge detecting structure built in the casing. An inner lower part of the casing is a printing studio for installing a 3D printer; the ultraviolet degradation box is disposed above the printing studio;an inlet of the ultraviolet degradation box is connected to the printing studio; an outlet of the ultraviolet degradation box is connected to the inlet of the centrifugal fan; the centrifugal fan isdisposed at an inner upper portion of the casing; and the emission detecting structure is disposed at an outlet of the centrifugal fan. According to the particle processing device of printer, the beneficial effects are that: the ABS ultrafine particles produced by the 3D printer during printing process are degraded into low molecular compounds and discharged from the centrifugal fan after high-frequency filtration by using the ultraviolet degradation box, so that undegraded ABS ultrafine particles are prevented from being directly discharged into air, quality of environment is ensured, and user inhalation is prevented from being affected.

The invention provides an acid pickling process for tail gas of an H-acid monosodium salt, and particularly relates to the technical field of production of the H-acid monosodium salt. The process comprises the following process steps of: S1, introducing the tail gas obtained after a neutralization reaction of the H-acid monosodium salt is conducted into a first bath tower, and performing water washing; S2, introducing the tail gas discharged from the first bath tower into a second bath tower, and performing water washing; S3, introducing the tail gas discharged from the second bath tower intoan acid pickling tower, and performing acid pickling; and S4, finally performing adsorption on the tail gas discharged from the acid pickling tower by using molecular sieves, and discharging the adsorbed tail gas. The process has the advantages that the cost is saved, the quality of the treated tail gas is improved, and discharging is more environmentally friendly.

The invention discloses a curvilinear air exhausting extractor hood comprising a case having an air suction opening and an air exhausting opening. The air exhausting opening is located in the top of the case, while the air suction opening is located in the sidewall of the bottom of the case, and a sloping baffle forming an acute angle with the horizontal plane is arranged on the air suction opening. An induced draft fan is disposed in the case, and an air inlet end and an air outlet end of the induced draft fan communicate with the air suction opening and the air exhausting opening, respectively. The curvilinear air exhausting extractor hood is characterized in that two ends of the sloping baffle extend out of the case and a first filtration mechanism is arranged on the sloping baffle, and in that an oil fume adsorption device is arranged in the case. The curvilinear air exhausting extractor hood is capable of effectively removing oil drops in smoke, thus achieving the effect of cleaning air.

An internal combustion engine, especially of a two-stroke engine in a portable handheld work apparatus, includes an outlet (27) for the exhaust gases which is fluidly connected with at least one inlet opening (13, 14) in an exhaust-gas muffler (1). At least one resonance pipe (6, 7) is mounted in flow direction between the outlet (27) from the engine (20) and the inlet opening (3, 5) into the exhaust-gas muffler (1) in order to obtain a good noise attenuating result and simultaneously make possible an advantageous, space-saving mounting of the engine (20).

The invention relates to an energy-saving lamp manufacturing machine, in particular to a dual exhaust rod mercury gun. The prior single exhaust rod mercury gun has a poor vacuum result and can not meet production requirements. The dual exhaust rod mercury gun is provided with two butt glass rods and has a better vacuum result; the dual exhaust rod mercury gun comprises a gun body with an inner cavity; an exhaust pipe communicated with the inner cavity is arranged on one side of the gun body; a mercury dropping seat consists of a sealing cap, a sealing element, a seal ring, an upper pressure cap, a seat cover and a magnetic conductive inner core are arranged at the upper end of the inner cavity; a seal fitting connected with the lamp glass rods is arranged at the lower end of the inner cavity of the gun body; the seal fitting comprises a mercury receiving bucket, a gasket and a hold down part axially connected in series from up to down; an external thread is arranged at the bottom of the gun body and screwed with a lower pressure cap upward supporting the hold down part; through holes communicated with the inner cavity of the gun body pass through the gasket and the upper off axis position of the hold down part; an adjustment blockage is arranged in the through hole on the hold down part; and an axial exhaust through hole is formed on the adjustment blockage. The dual exhaust rod mercury gun has the advantages of good vacuum result, and helps accelerate production speed and raise production capacity.

The method relates to an electronically controlled system of a motorcycle, in particular to an ignition control method of the electronically controlled system of the motorcycle. The method comprises the following steps: S1, storing calibration data in a memory of ECU; S2, acquiring position signals and status data of a piston by the ECU, after the operation of a motor, calculating data for a basic ignition angle by ECU according to the operating position of the piston; S3, comparing the calibration data of step S1 with the status data of step S2 by the ECU, and obtaining the revised data for the basic ignition angle; S4, overlapping the data of the basic ignition angle calculated in the step S1 and the revised data for the basic ignition angle calculated in step S3 by the ECU to obtain data of a preignition angle; and S5, transmitting the obtained data of the preignition angle calculated in step S4 to an ignition coil by the ECU and controlling the ignition of the ignition coil by the ECU. The method well controls the ignition process, allows an engine to ignite at the best moment and causes the mixed air in the cylinder to fully burn, therby reaching effects of diminishing the oil consumption and improving the quality of tail gas.

The invention relates to an energy-saving lamp manufacturing machine, in particular to a dual exhaust rod mercury gun. The prior single exhaust rod mercury gun has a poor vacuum result and can not meet production requirements. The dual exhaust rod mercury gun is provided with two butt glass rods and has a better vacuum result; the dual exhaust rod mercury gun comprises a gun body with an inner cavity; an exhaust pipe communicated with the inner cavity is arranged on one side of the gun body; a mercury dropping seat consists of a sealing cap, a sealing element, a seal ring, an upper pressure cap, a seat cover and a magnetic conductive inner core are arranged at the upper end of the inner cavity; a seal fitting connected with the lamp glass rods is arranged at the lower end of the inner cavity of the gun body; the seal fitting comprises a mercury receiving bucket, a gasket and a hold down part axially connected in series from up to down; an external thread is arranged at the bottom of the gun body and screwed with a lower pressure cap upward supporting the hold down part; through holes communicated with the inner cavity of the gun body pass through the gasket and the upper off axis position of the hold down part; an adjustment blockage is arranged in the through hole on the hold down part; and an axial exhaust through hole is formed on the adjustment blockage. The dual exhaust rod mercury gun has the advantages of good vacuum result, and helps accelerate production speed and raise production capacity.

A method for diagnosing a tank venting valve. This includes measuring a first pressure p1 in the induction pipe of an internal combustion engine; activating the tank venting valve so as to open; measuring a second pressure p2 in the induction pipe of the internal combustion engine after the opening activation of the tank venting valve; calculating a control value K by subtracting the first induction pipe pressure p1 from a second induction pipe pressure p2 and adding a correction pressure pK, which is calculated from the leakage air adaptation of an internal combustion engine; and detecting A defect of the tank venting valve, when the control value K falls below a threshold value.

The invention discloses an exhaust machine tail pipe pulling mechanism for processing light bulbs of road motor vehicles. The screw is pressed tightly, and the left end of the cylinder bracket is processed with inner holes in the horizontal and vertical directions. The inner hole of the support is installed on the rotating shaft. The upper and lower ends of the inner hole of the support are equipped with bearing bushes. The pin shaft is installed in the guide groove and penetrates into the radial inner hole of the rotating shaft. Screws are installed on the boss of the support, the bracket is installed on the shaft, and the nut is installed at the lower end of the rotating shaft and rests on the lower end surface of the bracket. The liquid shaft is installed in the hole of the support sleeve and connected with the connecting sleeve through a screw and a nut, and the threaded hole at the center of the bottom of the connecting sleeve is sealed with a plug. The invention can reduce the workload of operators and create conditions for improving the productivity of equipment.

The invention discloses an axial seal ring of an air compressor piston rod. The axial seal ring of the air compressor piston rod comprises driving fit rings, outer sleeves and tension springs, wherein the outer sleeves are arranged on the outer rings of the driving fit rings, the tension springs are arranged between each driving fit ring and each outer sleeve, and notches are formed in the driving fit rings and the outer sleeves. The notches in the driving fit rings are staggered with the notches in the outer sleeves. The driving fit rings and the outer sleeves are made of teflon. The axial seal ring of the air compressor piston rod can automatically adjust when the piston rod is abraded, seal effects are increased, the phenomenon that lubricating oil in a roller box can seep in an air cylinder through the piston rod is prevented, oil content in compressed air is reduced, venting quality is improved, use energy consumption of the air compressor is reduced, and energy is saved.

An engine system for controlling flow of exhaust gas may include an intake line to receive external air, an engine including a combustion chamber to combust the external air and a fuel supplied through the intake line, to generate driving torque, an exhaust line to exhaust the exhaust gas combusted in the combustion chamber of the engine, a turbocharger including a turbine operated according to exhaust gas flowing through the exhaust line and a compressor to compress the external air flowing through the intake line, a catalyst device to reduce a harmful component included in the exhaust gas passing through the turbine of the turbocharger, a bypass line branched from the exhaust line between the combustion chamber and the turbine and converged in the intake line between the compressor and the combustion chamber, and a bypass valve disposed in the bypass line to selectively open / close the bypass line.

A method and system for controlling an exhaust gas flow in an engine system are provided. The method includes detecting operating conditions of an engine and operating a valve that is disposed on a line bypassing a catalyst unit based on the operating conditions such that exhaust gas bypasses the catalyst unit. The operating conditions include a vehicle speed, an engine rotation speed, a fuel injection amount, an accelerator pedal signal, a coolant temperature, or a lambda value of exhaust gas.