167results about How to "Accelerated dilution" patented technology

Methods and systems are provided for using compressor recirculation flow via a venturi to enhance low pressure EGR flow. The opening of a compressor recirculation valve can be adjusted based on EGR flow demand to recirculate cooled compressed air through a venturi while generating vacuum for drawing EGR. The approach allows for concurrent EGR control and surge control.

A thermocycler apparatus and method for rapidly performing the PCR process employs at least two thermoelectric modules which are in substantial spatial opposition with an interior space present between opposing modules. One or multiple sample vessels are placed in between the modules such that the vessels are subjected to temperature cycling by the modules. The sample vessels have a minimal internal dimension that is substantially perpendicular to the modules that facilitates rapid temperature cycling. In embodiments of the invention the sample vessels may be deformable between: a) a shape having a wide mouth to facilitate filling and removing of sample fluids from the vessel, and b) a shape which is thinner for conforming to the sample cavity or interior space between the thermoelectric modules of the thermocycler for more rapid heat transfer.

Methods and systems are provided for improving the performance of a variable displacement engine. Split injection and spark retard may be used in active cylinder during a VDE mode to heat an exhaust catalyst and extend the duration of VDE mode operation. Split injection and spark retard may also be used in reactivated cylinders at a time of cylinder reactivation to improve restart combustion stability.

In a method for the combustion of a fuel, a fuel or a premixed combustible mixture is introduced into a combustion space as a combustible fluid open jet. The velocity of the open jet is selected in such a way that it is impossible for a stable flame front to form, i.e. is in any event greater than the flame front velocity, and that, on account of a jet pump effect, flue gas is mixed into the combustible fluid jet from the combustion chamber in a jet-induced recirculation internally within the combustion chamber. The admixed flue gas dilutes and heats the combustible fluid. The heating causes the spontaneous ignition temperature to be exceeded, and a low-pollutant volumetric flame is formed in a highly dilute atmosphere.

The invention relates to a device and to an improved method for chemical looping combustion of at least one liquid hydrocarbon feed, comprising: mixing the liquid feed with an atomization gas so as to feed it into a metal oxide transport zone (2), upstream from combustion zone (3), through atomization means (6) allowing to form finely dispersed liquid droplets in the atomization gas; spraying the liquid feed in form of droplets into contact with at least part of the metal oxides in transport zone (2), the operating conditions in transport zone (2) being so selected that the superficial gas velocity after spraying the liquid feed is higher than the transport velocity of the metal oxide particles; sending all of the effluents from transport zone (2) to a combustion zone (3) allowing reduction of the metal oxides, said combustion zone (3) comprising at least one dense-phase fluidized bed. The invention can be advantageously applied to CO₂ capture and energy production.

This application relates to an aqueous, acidic, self-preserving, liquid cleaning composition, typically a dishwashing liquid, having a pH for the composition within the range of 2.5 to 5 initially and upon dilution, which composition comprises a plurality of surfactants, the surfactants including surfactant active components comprising from greater than 39% to up to 55% by weight, based on the weight of the composition, wherein the composition has a viscosity of from 80 to 3000 mPas as measured at 25° C., and the composition is dilutable with water to form a non-gelling diluted composition having up to five times the volume of the undiluted composition and a viscosity within the range of 80 to 3000 mPas as measured at 25° C. at any dilution up to the five times dilution.

Methods and systems are provided for modeling an oil dilution qualitative indicator based on an integrated difference between a commanded air-to-fuel ratio and an engine air-to-fuel ratio as determined via an oxygen sensor, cumulative cold engine temperature operating duration, and fuel injection characteristics (timing, duration, number of injections) allowing fuel injection timing modifications that minimize oil dilution when the oil dilution qualitative indicator is greater than a threshold level.

Methods and systems are provided for using compressor recirculation flow via a venturi to enhance low pressure EGR flow. The opening of a compressor recirculation valve can be adjusted based on EGR flow demand to recirculate cooled compressed air through a venturi while generating vacuum for drawing EGR. The approach allows for concurrent EGR control and surge control.

The present invention relates to novel suspension concentrate and suspoemulsion formulations comprising a herbicidally active amount of 2-(2′-nitro-4′-methylsulphonylbenzoyl)-1,3-cyclohexanedione(mesotrione), as well as agrochemically acceptable salts thereof, having a particle size, as defined herein, of less than 1 micron and to the use of thereof in controlling weeds in crops of useful plants.

A method for operating an engine with a fuel reformer is presented. In one embodiment a first fuel is reformed into a gaseous fuel comprising H, CO, and CH₄ or the fuel may change state to vaporized alcohol. The present method provides for ramping injection of the gaseous fuel so that stoichiometric combustion may be maintained while gaseous fuel is injected to the engine.

The present invention relates to a method for treating laundry in a laundry washing machine (1; 201; 301; 401) of the type comprising: a washing tub (3) external to a rotatable perforated washing drum (4) adapted to receive laundry; a water supply circuit (5) to supply water into the washing tub (3); a detergent supplier (60) to supply detergent (D) into the washing tub (3); a rinse additive supplier (70) to supply at least one rinse additive (S) into the washing tub (3); a first recirculation circuit (30) suitable for withdrawing liquid from the bottom region (3a) of the washing tub (3) and for re-admitting such a liquid into the bottom region (3a) of the washing tub (3). The method comprises a washing phase (120) during which the laundry is washed with introduction of water and detergent (D) into the washing tub (3) and tumbled by rotation of the washing drum (4), at least one successive draining phase (125) for draining liquid from the washing tub (3) and at least one following rinsing cycle (130a, 130b, . . . , 130n; 130′n; 230a, 230b, . . . , 230n) during which the laundry is treated with the rinse additive (S). The rinsing cycle (130n; 130′n; 230n) comprises the steps of: introducing (140; 140; 240) a quantity (Qs) of rinse additive (S) into the washing tub (3); introducing (140; 140; 240) a first quantity (Q1w) of water (W) into the washing tub (3); activating (141; 141; 241) the first recirculation circuit (30) for withdrawing liquid from the washing tub (3) and re-admitting the liquid into the washing tub (3) in such a way that the rinse additive (S) is diluted with the first quantity (Q1w) of water (W) at the bottom region (3a) of the washing tub (3); introducing (142; 142′) the diluted rinse additive into the perforated washing drum (4) in order to be absorbed by said laundry.

The invention provides an environment-friendly emamectin benzoate aqueous solution and a preparation method thereof. The environment-friendly emamectin benzoate aqueous solution comprises the following ingredients by weight percent: 1-7% of emamectin benzoate, 1-10% of an agent A and 1-6% of an agent B. The aqueous solution does not contain any organic solvent, is uniform and clear in appearance, and is stable after long-term standing; the insecticide effect is good, and therefore, the environment-friendly emamectin benzoate aqueous solution is obviously superior to missible oil and other water-based forms.

An air purification system comprises a tunnel system, a ventilation system, and a purifying device. The tunnel system connects a city center and city outskirts; the city center and the city outskirts are provided with air vents; at least one air vent can be closed under control, and other air vents are sealed. The ventilation system is used for pushing purified air into the tunnel system. The purifying device is used for removing pollutants in polluted air. Purification plants are arranged in the outskirts; purified fresh air is pushed into a tunnel and delivered to the city center; with mixing of the fresh air and the polluted air, the concentration of air pollutants in the city center is reduced, the air in the city center is urged to flow to the city outskirts and horizontal calm winds are broken. According to the technical scheme, pollutants in city air are directly removed, so that the city outskirts are prevented from being polluted by the pollutants and the air is also prevented from being repeatedly polluted by the pollutants. The invention further provides an air purification method.

A system for testing the efficiency of a test HEPA filter, the system comprises a dilution system and a sampling system. The dilution system processes samples collected upstream of the test HEPA filter. The dilution system has a test portion and a calibrated portion. The calibrated portion aids in determining the dilution ratio of the test portion thereby rendering the dilution system self-calibrating. The sampling system receives upstream samples via the dilution system, and downstream samples collected directly downstream of the test HEPA filter. The sampling system incorporates a flow rate balancing system to ensure accurate counts with respect to samples collected upstream and downstream of the test HEPA filter. The sampling system works well with particle counters fitted with relatively weak fans to draw in samples for counting; this is achieved by connecting the sampling system to both the inlet and exhaust outlet of a particle counter.

A method and system for providing a suitable engine torque response during a transient condition is presented. In one example, when a desired inlet manifold pressure is greater than a throttle inlet pressure of a first throttle, a second throttle positioned upstream from the first throttle is opened to increase the throttle inlet pressure. The method may provide an appropriate torque response while minimizing impact on fuel economy.

An exhaust gas emission control system for a diesel engine, having an oxidation catalyst (DOC) (7) and a diesel particulate filter (DPF) (9) in an exhaust passage, wherein a late post-injection control unit (62), which injects fuel into a combustion chamber at a timing not contributing to combustion in DPF regeneration control, feedback controls a late post-injection amount such that a regeneration amount of soot regenerated by the DPF (9) becomes a target soot regeneration amount.

The invention discloses a generating system of electrolytic sodium hypochlorite. The generating system comprises a brine supply component, an electrolytic reaction component and an energy supply component, wherein the brine supply component comprises a brine circulating pump, a dissolving salt pot and a water supplier used for providing soft water; the brine circulating pump, the dissolving salt pot and the water supplier are in communication through a brine flowing pipe; the electrolytic reaction component comprises a reaction pond, a reaction electrode and a sodium hypochlorite liquid storing tank; the reaction electrode is arranged in a reaction pond, and the reaction pond is in communication with the sodium hypochlorite liquid storing tank; the brine circulating pump is in communication with the reaction pond through the brine flowing pipe; the energy supply component comprises at least two groups of power supply devices, and all of power supply devices are electrically connected with the electrolytic reaction component. By arranging the brine circulating pump, the brine supply system is capable of improving the thinning speed of the brine, so that the brine in the brine supply system can keep the concentration of the electrolytic reaction constantly, thereby the stability of the brine concentration of the electrolytic sodium hypochlorite generating system is improved.

Methods and systems are provided for filtering an oil dilution amount based on a current value of the oil dilution amount. In one example, filtering the oil dilution amount may include decreasing a sensitivity of filtering at lower oil dilution below a threshold; otherwise, increasing the sensitivity of filtering. The sensitivity of the filtering may be decreased by implementing a larger time constant, while the sensitivity of the filtering may be increased by implementing a smaller time constant.