18 results about "Hydrocarbon emission" patented technology

A system for reducing the release of hydrocarbons intermittently or continuously emitted from a hydrocarbon source into the atmosphere includes a hydrocarbon supply conduit configured to receive the emitted hydrocarbons from the hydrocarbon source. In addition, the system includes an air supply conduit configured to receive air from an air source. Further, the system includes an aspirator fluidly coupled to the air supply conduit and the hydrocarbon supply conduit. The aspirator is configured to (i) receive air from the air supply conduit, (ii) receive the emitted hydrocarbons from the hydrocarbon supply conduit, and (iii) mix the air with the emitted hydrocarbons to form an air-hydrocarbon mixed stream. Still further, the system includes a mixing tee fluidly coupled to the air supply conduit, the hydrogen supply conduit, and the aspirator. The mixing tee is configured to (i) receive the air-hydrocarbon mixed stream from the aspirator, (ii) receive supplemental air from the air supply conduit, and (iii) mix the supplemental air and the air-hydrocarbon mixed stream to form an air-entrained hydrocarbon stream. The system also includes an air-entrained hydrocarbon conduit fluidly coupled to the mixing tee. Moreover, the system includes a catalytic converter fluidly coupled to the air-entrained hydrocarbon conduit and configured to receive the air-entrained hydrocarbon stream, and wherein the catalytic converter includes a catalyst configured to catalytically combust and oxidize the emitted hydrocarbons in the air-entrained hydrocarbon stream.

Aspects of the present invention relate to a module (1000) for supplying hydrogen gas to a flame ionisation detector (3000). The module (1000) comprises a housing (100) configured to be mounted within a vehicle (5000), wherein the housing (100) comprises a gas flow system (1010). The gas flow system (1010) comprises a gas bottle (120) for containing hydrogen gas, wherein the gas bottle (120) is coupled within the housing (100). The gas flow system (1010) further comprises a pressure regulator (136) coupled to the gas bottle (120) configured to control a pressure of the hydrogen gas received from the gas bottle (120). The gas flow system (1010) further 10 comprises an output port (110) mounted through the housing (100) and coupled to the pressure regulator (136), the output port (110) configured to selectively couple to the flame ionisation detector (3000). In this way, the claimed invention provides a module (1000) for supplying hydrogen gas to a flame ionisation detector (3000) for hydrocarbon emissions testing onboard a vehicle (5000) that is robust and safe for inhabitants of the vehicle.

A system for reducing the release of hydrocarbons intermittently or continuously emitted from a hydrocarbon source into the atmosphere includes a hydrocarbon supply conduit configured to receive the emitted hydrocarbons from the hydrocarbon source. In addition, the system includes an air supply conduit configured to receive air from an air source. Further, the system includes an aspirator fluidly coupled to the air supply conduit and the hydrocarbon supply conduit. The aspirator is configured to (i) receive air from the air supply conduit, (ii) receive the emitted hydrocarbons from the hydrocarbon supply conduit, and (iii) mix the air with the emitted hydrocarbons to form an air-hydrocarbon mixed stream. Still further, the system includes a mixing tee fluidly coupled to the air supply conduit, the hydrogen supply conduit, and the aspirator. The mixing tee is configured to (i) receive the air-hydrocarbon mixed stream from the aspirator, (ii) receive supplemental air from the air supply conduit, and (iii) mix the supplemental air and the air-hydrocarbon mixed stream to form an air-entrained hydrocarbon stream. The system also includes an air-entrained hydrocarbon conduit fluidly coupled to the mixing tee. Moreover, the system includes a catalytic converter fluidly coupled to the air-entrained hydrocarbon conduit and configured to receive the air-entrained hydrocarbon stream, and wherein the catalytic converter includes a catalyst configured to catalytically combust and oxidize the emitted hydrocarbons in the air-entrained hydrocarbon stream.

The application provides an engine shutdown method and device, electronic equipment and vehicle. The method comprises the following steps: in the case that a shutdown signal is received, oil is injected into each cylinder combustion chamber according to the minimum injection amount corresponding to each cylinder combustion chamber in the engine, and spark plugs in each cylinder combustion chamber are ignited; after the spark plugs in each cylinder combustion chamber are ignited once, the oil injection into each cylinder combustion chamber is stopped, and the spark plugs in each cylinder combustion chamber are stopped from being ignited, so as to reduce the emission of hydrocarbons. Through the technical scheme of the application, a round of minimum oil injection is further performed on each cylinder combustion chamber when the engine is shut down, the residual fuel particles in the cylinder combustion chamber are fully combusted, the amount of hydrocarbon emission is reduced, and environmental pollution is reduced.

According to the fuel gas supplementing carburetor for the engine, the auxiliary air inlet channel is additionally arranged in the main air inlet channel, so that the air inlet channel can provide fuel gas for the mixing cavity or / and the engine air inlet channel under different working conditions, the mixing proportion of the fuel gas and air is optimized, the mixed gas reaches the optimal air-fuel ratio, combustion efficiency is improved, and the fuel gas supplementing carburetor for the engine has the advantages of being energy-saving and environment-friendly. The problem of incomplete combustion is avoided, hydrocarbon emission is reduced, the adaptability of the engine to different working conditions is enhanced, the stability of the engine is improved, the fuel utilization rate is increased, and the purposes of energy conservation and environmental protection are achieved.

A hydrocarbon absorbing air filter box is provided for absorbing evaporative hydrocarbon emissions from an air intake duct of an internal combustion engine. A combined mass airflow sensor and hydrocarbon trap comprising the hydrocarbon absorbing air filter box includes a duct supporting a hydrocarbon absorbing sheet within an interior of a housing. The duct communicates an airstream from an air filter to the air intake duct during operation of the internal combustion engine. An opening in the housing receives a mass airflow sensor into the duct, such that the mass airflow sensor is disposed within the airstream. Guide vanes extending across the duct reduce air turbulence within the airstream passing by the mass airflow sensor. Ports disposed along the duct allow the evaporative hydrocarbon emissions to be drawn into the interior and arrested by the hydrocarbon absorbing sheet when the internal combustion engine is not operating.

Various embodiments of the present technology relate to solutions for capturing hydrocarbon emissions. In some examples, a system comprises a pressure regulator, an Electric Operated Dual Diaphragm (EODD) vapor pump, a pump pressure gauge, and a process controller. The pressure regulator receives hydrocarbon emissions at an input pressure from an emissions source, maintains the input pressure of the emissions, and passes the hydrocarbon emissions at a pump suction pressure. The EODD ingests the hydrocarbon emissions at the pump suction pressure, pressurizes the hydrocarbon emissions to an output pressure, and transfers the hydrocarbon emissions at the output pressure for delivery to a hydrocarbon emissions collector. The pump pressure gauge measures the pump suction pressure of the hydrocarbon emissions and reports the pump suction pressure. The process controller controls the motor speed of the EODD vapor pump to maintain the hydrocarbon emissions at the pump suction pressure.

A system and methods are provided for a hydrocarbon absorbing air filter system to arrests evaporative hydrocarbon emissions from an intake duct of an internal combustion engine. The system comprises an air filter box that includes an air inlet to an air filter disposed inside the air filter box. A hydrocarbon trap outside the air filter box and in fluid communication with the air filter absorbs evaporative hydrocarbon emissions leaking from the air intake duct when the engine is not operating. The hydrocarbon trap includes an outer housing that couples with an inner housing and a hydrocarbon absorbing pad within an interior between the outer and inner housings. Ports in the inner housing allow hydrocarbon emissions to be arrested by the hydrocarbon absorbing pad. A conduit extends from the hydrocarbon trap to the air intake duct of the internal combustion engine.

A combined mass airflow sensor and hydrocarbon trap is provided for absorbing evaporative hydrocarbon emissions from an air intake duct of an internal combustion engine. The combined mass airflow sensor and hydrocarbon trap comprises a duct that supports a hydrocarbon absorbing sheet in an unfolded configuration within a housing. The duct communicates an airstream from an air filter to the air intake duct during operation of the internal combustion engine. An opening in the housing receives a mass airflow sensor into the duct, such that the mass airflow sensor is disposed within the airstream. Guide vanes extending across the duct reduce air turbulence within the airstream passing by the mass airflow sensor. Ports disposed along the duct allow the evaporative hydrocarbon emissions to be drawn into the interior and arrested by the hydrocarbon absorbing sheet when the internal combustion engine is not operating.

A gas plant hydrocarbon recovery management system includes a hydrocarbon blowdown header flowline for receiving a hydrocarbon drainage composition, a recovery flowline extending from the header flowline to receive a portion of the composition, a three-phase gravity separator in fluid communication with the recovery flowline via a first flowline, and a hydrocarbon recovery vessel in fluid communication via a second flowline. A three-way control valve is arranged in the recovery flowline and actuatable between a first operational state, where the portion of the composition is entirely diverted through the first flowline and to the three-phase gravity separator, and a second operational state, where some of the portion of the composition is diverted also to the second flowline and to the hydrocarbon recovery vessel. The valve is actuated from the first to the second operational state when a flow rate through the first flowline reaches a predetermined maximum flow rate.

The present disclosure relates to a zoned and partitioned catalyst article (1), in preferred embodiments comprising platinum group metal (PGM) elements, such as platinum (Pt) and palladium (Pd), and porous support materials such as aluminum oxide (Al2O3), silicon oxide (SiO2), titanium oxide (TiO2) and optionally comprising other metal oxides and promoters, which can be used for making a zoned catalyst article (1) for oxidizing carbon monoxide (CO), hydrocarbons (HCs), hydrogen (H2) and nitrogen oxide (NOx) emissions, the article further suitable for use as a temporary NOx and hydrocarbon storage for reduction of total NOx and hydrocarbon emissions. The disclosure describes the contents of the catalyst article (1) and how to utilize a such catalyst article (1) in purifying exhaust gas emissions.

The present disclosure relates to hydrocarbon emission control systems. More specifically, the present disclosure relates to substrates coated with hydrocarbon adsorptive coating compositions and evaporative emission control systems for controlling evaporative emissions of hydrocarbons from motor vehicle engines and fuel systems.

The invention provides an iron-based binding agent honing abrasive bar. The iron-based binding agent honing abrasive bar is composed of the following raw materials of, by mass, 40%-60% of iron powder, 10%-30% of copper powder, 3%-15% of tin powder, 2%-15% of nickel powder, 1%-10% of tungsten carbide powder, 0.1%-5% of cerium oxide, 0.5%-5% of additives and the balance cubic boron nitride. The formula of the binding agent with the iron powder as the main body is adopted, the defects that an existing copper-based binding agent abrasive bar is short in service life and high in cost are overcome, and the honing abrasive bar has the advantages of being long in service life, good in machining quality and low in cost. The iron powder is non-toxic, and the binding agent with the iron powder as the main body can protect the health of a sand bar maker to the maximum extent. The iron-based binding agent honing abrasive strip can improve the qualified rate of reticulate patterns of a cylinder sleeve, optimize the oil storage and lubrication functions, reduce the risk of cylinder scoring and prolong the service life of an engine. Meanwhile, the phenomenon of engine oil burning can be reduced through the good reticulate patterns, emission of particulate matter and hydrocarbon is reduced, and then the environment is protected.

A system for reducing the release of hydrocarbons intermittently or continuously emitted from a hydrocarbon source into the atmosphere includes a hydrocarbon supply conduit configured to receive the emitted hydrocarbons from the hydrocarbon source. In addition, the system includes an air supply conduit configured to receive air from an air source. Further, the system includes an aspirator fluidly coupled to the air supply conduit and the hydrocarbon supply conduit. The aspirator is configured to (i) receive air from the air supply conduit, (ii) receive the emitted hydrocarbons from the hydrocarbon supply conduit, and (iii) mix the air with the emitted hydrocarbons to form an air-hydrocarbon mixed stream. Still further, the system includes a mixing tee fluidly coupled to the air supply conduit, the hydrogen supply conduit, and the aspirator. The mixing tee is configured to (i) receive the air-hydrocarbon mixed stream from the aspirator, (ii) receive supplemental air from the air supply conduit, and (iii) mix the supplemental air and the air-hydrocarbon mixed stream to form an air-entrained hydrocarbon stream. The system also includes an air-entrained hydrocarbon conduit fluidly coupled to the mixing tee. Moreover, the system includes a catalytic converter fluidly coupled to the air-entrained hydrocarbon conduit and configured to receive the air-entrained hydrocarbon stream, and wherein the catalytic converter includes a catalyst configured to catalytically combust and oxidize the emitted hydrocarbons in the air-entrained hydrocarbon stream.

The present application relates to the technical field of automobile emission detection, and particularly relates to a hydrocarbon mass testing method and a methanol fuel automobile carbon canister emission testing method. The present application connects the atmospheric port of the carbon canister to a micro closed chamber, continuously measures the total hydrocarbon in the closed chamber using FID, and synchronously measures the methanol concentration in the same gas using FTIR. Based on the measurement results of FID and FTIR, the signal separation of non-methanol hydrocarbons and methanol is realized, the problem that the FID response is inaccurate and the alcohol and hydrocarbon emissions cannot be distinguished in the prior art is solved, and the accuracy and reliability of the methanol fuel automobile evaporation pollutant emission testing are improved.

The present disclosure relates to hydrocarbon emission control systems. More specifically, the present disclosure relates to substrates coated with hydrocarbon adsorptive coating compositions and evaporative emission control systems for controlling evaporative emissions of hydrocarbons from motor vehicle engines and fuel systems.

A system and methods are provided for a hydrocarbon absorbing air filter system to arrests evaporative hydrocarbon emissions from an intake duct of an internal combustion engine. The system comprises an air filter box that includes an air inlet to an air filter disposed inside the air filter box. A hydrocarbon trap outside the air filter box and in fluid communication with the air filter absorbs evaporative hydrocarbon emissions leaking from the air intake duct when the engine is not operating. The hydrocarbon trap includes an outer housing that couples with an inner housing and a hydrocarbon absorbing pad within an interior between the outer and inner housings. Ports in the inner housing allow hydrocarbon emissions to be arrested by the hydrocarbon absorbing pad. A conduit extends from the hydrocarbon trap to the air intake duct of the internal combustion engine.

A guide vane control system comprises an ECU (Electronic Control Unit), a PID (Proportion Integration Differentiation) controller, a PWM (Pulse Width Modulation) driving module and a servo motor, an absolute value encoder is arranged on the servo motor, and all the elements are in signal connection; the output end of the servo motor is rigidly connected with an adjustable guide vane device; the adjustable guide vane device comprises a sleeve, and the sleeve is in interference fit with the inner wall of an air inlet channel of the internal combustion engine. A plurality of guide vanes are arranged in an inner cavity of the sleeve and connected with a rotating shaft penetrating through the wall of the sleeve, and the rotating shaft is rigidly connected to the output end of the servo motor. The front edge radius of the guide vane is larger than the tail edge radius, and the guide vane has a certain torsional angle. The guide vane control system adopts a closed-loop control framework and is matched with the adjustable guide vane device, so that the premixing time is greatly shortened, the vortex of the air inlet channel is enhanced, the combustion efficiency of the internal combustion engine is improved, and meanwhile, the emission of hydrocarbon is reduced.