529 results about "Automotive emissions" patented technology

Disclosed is a method for sharply reducing diurnal breathing loss emissions from automotive evaporative emissions control systems by providing multiple layers, or stages, of adsorbents. On the fuel source-side of an emissions control system canister, high working capacity carbons are preferred in a first canister (adsorb) region. In subsequent canister region(s) on the vent-side, the preferred adsorbent should exhibit a flat or flattened adsorption isotherm on a volumetric basis and relatively lower capacity for high concentration vapors as compared with the fuel source-side adsorbent. Multiple approaches are described for attaining the preferred properties for the vent-side canister region. One approach is to use a filler and/or voidages as a volumetric diluent for flattening an adsorption isotherm. Another approach is to employ an adsorbent with the desired adsorption isotherm properties and to process it into an appropriate shape or form without necessarily requiring any special provision for dilution. The improved combination of high working capacity carbons on the fuel source-side and preferred lower working capacity adsorbent on the vent-side provides substantially lower diurnal breathing emissions without a significant loss in working capacity or increase in flow restriction compared with known adsorbents used in canister configurations for automotive emissions control systems.

An aluminum titanate-based ceramic article having a composition comprising u (Al₂O₃—TiO₂)+v (R)+w (3Al₂O₃—2SiO₂)+x (Al₂O₃)+y (SiO₂)+z (1.1SrO-1.5Al₂O₃-13.6SiO₂—TiO₂)+a (Fe₂O₃—TiO₂)+b (MgO-2TiO₂), where, R is SrO—Al₂O₃-2SiO₂ or 11.2SrO-10.9Al₂O₃-24.1SiO₂—TiO₂, where u, v, w, x, y, z, a and b are weight fractions of each component such that (u+v+w+x+y+z+a+b=1), and 0.5<u≦0.95, 0.01<v≦0.5, 0.01<w≦0.5, 0≦x≦0.5, 0≦y≦0.1, 0≦z≦0.5, 0<a≦0.3, and 0≦b≦0.3. A method of forming the ceramic article is provided. The ceramic article is useful in automotive emissions control systems, such as diesel exhaust filtration.

The present invention relates to a system for purifying automobile exhaust gas capable of allowing an absorption catalyst to purify exhaust gases, where the exhaust gases flow through the absorption catalyst in a CCC at the inital start time of the engine and capable of allowing a UCC catalyst to purify exhaust gases normally by flowing the exhaust gases only through the UCC catalyst by disconnecting a flow path connected with the absorption catalyst in the CCC during a warm-up state of the UCC catalyst. The CCC is installed near an engine exhaust manifold, and a UCC is installed in a lower side of the automobile body floor. A HC absorption catalyst and a NO_x absorption catalyst each having little or no precious metal carrying amount, are installed in the CCC. A variable flow path system, including a bypass flow path and a flow path switching part, is provided.

The invention is a kind of alcohol clean fuel containing following components mixed evenly: methanol, alcohol-petrol combination, isopropanol, fuel accelator, clean dispersant, anti-corrosion agent, metallo catalyst, deicing agent, stability agent, anfioxidant agent, and explosion-resistent agent. The fuel can be use in the realm of vehicle and can be mixed with lead-free petrol by any proportion. In addition, this fuel applies to any gasoline-motivated vehicle without changing the engine. Moreover, the fuel is environmental and can effectively reduce the emission of harmful substance in end gas, such as CO, CH and NOx. And the fuel cannot erode aluminium, cast iron, copper, and so forth and the swelling phenomena can be reduced by using this fuel instead of lead-free petrol. Additionally, an easy production and a low cost make this invention a vast-foreground environmental clean fuel.

The invention discloses a vehicle tail gas purifying device. The vehicle tail gas purifying device comprises a main body; a temperature difference generator, an asbestos filter cylinder and an activated carbon filter screen are mounted in an inner cavity of the main body in sequence from left to right in a tail gas feeding direction; a relative fixed base is arranged between the temperature difference generator and the asbestos filter cylinder; an electrostatic dust removing anode plate and an electrostatic dust removing cathode plate are respectively mounted on the relative fixed base; a turbulent fan is fixedly mounted on the inner wall of the temperature difference generator through a fixed frame; heat collecting plates are respectively arranged on the inner walls of two opposite sides of the temperature difference generator; an equipment box is fixedly welded in the middle position of the outer side of the top of the main body; a transformer and a protection switch are fixedly mounted in an inner cavity of the equipment box; and the temperature difference generator is connected with an accumulator through an intelligent charger. The vehicle tail gas purifying device is skillful in concept, uses vehicle tail gas afterheat for generating electricity, fully uses resources, can purify and decompose vehicle tail gas, and reduces environmental pollution by the vehicle tail gas.

In order for automobile exhaust catalysts to function they must be at operational temperatures. When an engine starts from cold the vehicle, including the exhaust system and any after-treatment device located therein, is at ambient temperature. Since 60% to 80% of the total emissions emitted occur at engine cold start and idle up to 120 seconds, it is imperative that the catalyst function as fast as possible. This invention provides a passive thermatically controlled bypass valve to enable the exhaust flow to bypass the enthalpy loss incurred by driving the turbine wheel of a turbocharger, and thus more rapidly deliver heat to the catalyst or after-treatment.

An aluminum titanate-based ceramic body having a composition a formula comprising a(Al₂O₃.TiO₂)+b(CaO.Al₂O₃.2SiO₂)+c(SrO.Al₂O₃.2SiO₂)+d(BaO.Al₂O₃.2SiO₂)+e(3Al₂O₃.2SiO₂)+f(Al₂O₃)+g (SiO₂)+h(Fe₂O₃.TiO₂)+i(MgO.2TiO₂), wherein a, b, c, d, e, f, g, h, and i are weight fractions of each component such that (a+b+c+d+e+f+g+h+i)=1, wherein 0.5<a≦0.95; 0≦b≦0.5; 0≦c≦0.5; 0≦d≦0.5; 0<e≦0.5; 0≦f≦0.5; 0≦g≦0.1; 0≦h≦0.3; 0≦i≦0.3; b+d>0.01. A method of forming the ceramic body is provided. The ceramic body is useful in automotive emissions control systems, such as diesel exhaust filtration.

An emission performance processing system for transmitting emission data of a vehicle to a remote server and inspecting emission performance of the vehicle is provided. The system includes a control unit, an OBD connector, a first storage unit and a transceiver. The system receives OBD data from an OBD system embedded in the vehicle via the OBD connector. The control unit extracts emission data from the OBD data. The first storage unit is used to store identification data of the vehicle. The identification data and the emission data are pre-processed by the control unit and transmitted to a remote server by the transceiver. The transceiver is also used to receive inquiries and evaluation reports from the remote server.

Disclosed are an energy switching control method and an energy switching control system for a hybrid electric vehicle in multiple operating modes. The energy switching control method includes the steps: firstly, according to vehicle running environments and road conditions detected in real time by a vehicular GPS (global positioning system) and a sensor, and according to current running road condition information of the hybrid electric vehicle, determining the corresponding operating modes of the vehicle, wherein the operating modes specifically include an engine-driven operating mode, a motor-driven operating mode, an engine and motor hybrid driven operating mode and an energy feedback and regenerative brake operating mode; and then designing a multi-mode switching control rule for the driving modes in terms of the running road conditions, and designing corresponding controllers for the operating modes respectively. According to the running environments and the road conditions, the energy switching control method and the energy switching control system control the optimal vehicle driving modes so as to reduce emission of vehicle exhaust, save fuel oil consumption, accelerate development of environment-friendly vehicles and green vehicles and improve endurance of the hybrid electric vehicle.

The invention relates to the technical field of chemical industry and relates to a multifunctional diesel composite additive capable of reducing the oil consumption and reducing the pollution of the exhaust emission. The diesel composite additive is mainly formed by uniformly mixing a clearing agent, a smoke abatement combustion improver, a cetane number improver, a pour point reducer, an antioxidant, a metal corrosion inhibitor and a cosolvent. The diesel composite additive can improve the clearness, the low-temperature mobility, oxidation resistance and corrosion resistance of the diesel, also can improve the combustion performance of the fuel, can reduce the oil consumption and can reduce the pollution of the exhaust emission.

This invention provides a system and method of detecting and responding to individual vehicle exhaust emissions such that a vehicle producing exhaust emissions containing pollutants in excess of required standards is assessed a higher toll or other fees than non-offending vehicles. Upon correction of the problem when emissions are determined to be within acceptable ranges, the fees are re-adjusted. Vehicle fees can be assessed on a sliding scale regardless of “acceptable thresholds” whereupon a higher levels of pollution emitted by the vehicle require payment of a higher fee than that paid by a vehicle with a lower level. Sensors may be installed within individual vehicles, or may be externally mounted to detect emissions. The use of a computer program and program code may be used for collecting and quantifying the level of pollution in the emissions and for assessing a suitable fee based on the level.

The present invention relates to a mobile air curtain type tunnel smoke-repelling dust-removing method and its equipment. It is characterized by that in the tunnel interior an air curtain which is formed from pressure air stream and can be moved along tunnel section direction is made up. Said air curtain has the functions of repelling smoke and collecting dust. Said equipment includes motor vehicle, air curtain generation ring tube fixed in the front portion of motor vehicle, air supply mechanism communicated with air curtain generation ring tube and dust-collecting mechanism.

The invention discloses an automobile exhaust gas emission and collection system of an automobile assembly workshop, comprising an annular rail and a slideable trolley mounted in the rail, wherein the rail is divided into a working region and a non-working region; an air exhausting channel is arranged in the working region of the rail and the air exhausting channel is connected with an exhaust fan; the slideable trolley is provided with an air exhausting hose; one end of the air exhausting hose is connected with the air exhausting channel; and the other end of the air exhausting hose is connected with an automobile gas emission pipe through an exhaust gas connector. The automobile exhaust gas emission and collection system of the automobile assembly workshop adopts an annular rail automatic circulation type structure based on an inherent layout of a production line to solve the problem of polluting automobile exhaust gas of the automobile assembly workshop, and the whole pumping and emission effect reaches a predicated target; and therefore, a production environment which is free of waste gas pollution is provided for an assembly production line.

The invention discloses a device for evaluating the automobile exhaust degradation effect of an OGFC mixture. The device comprises a closed container, an automobile engine, an automobile exhaust analyzer, a track board test piece, and air supplying devices, wherein the air supplying devices are arranged in the closed container. The invention further discloses an evaluation method which comprises the following steps in sequence: preparing the track board test piece, and generating automobile exhaust; simulating the degradation of automobile exhaust on a pavement and testing the concentration of each gas in the automobile exhaust; processing data. The track board test piece is prepared from the OGFC mixture which is added with a photocatalytic material; the evaluation index, used for evaluating the automobile exhaust degradation effect, of the OGFC mixture is taken as the degradation rate. The evaluation device can simulate the automobile exhaust degradation processes of the OGFC mixture in different illumination conditions by controlling the number of ultraviolet lamp tubes. The evaluation method is accurate and reliable, and coincides with the automobile exhaust degradation situation on a real pavement.

The invention discloses a high-efficiency power generation device by utilizing automobile tail gas. The device mainly comprises an air suction pipe, a spark plug, a device for preparing carbon dioxide by tail gas, a motion cylinder, a sliding body, a spring, a crank link mechanism, a power generator, a thermoelectric power generation sheet, a tail gas gathering chamber, a liquid carbon dioxide cooling chamber and the like. According to the invention, the flow rate of the high-temperature tail gas at the position of a horn at the connecting end of an exhaust pipe and the motion cylinder is accelerated, and negative pressure is caused, thus the air suction pipe sucks fresh air, a mixed gas is formed, and enters the motion cylinder; the spark plug is ignited continuously for secondary combustion, high-temperature and high-pressure tail gas is generated, the sliding body is pushed to move forward, and simultaneously, after the high-temperature tail gas generated by the secondary combustion enters the tail gas gathering chamber through small holes at the bottom of the motion cylinder, pressure is reduced, the power generator is driven by a crank shaft and a crank link mechanism to generate electricity through the reciprocating pulling effect which is formed by the reversal motion of the sliding body by the spring, at the same time, electric power is generated through temperature sensing of the temperature difference of the tail gas gathering cavity and the liquid carbon dioxide cooling cavity by utilizing the thermoelectric power generation sheet, and the electricity energy is stored in an automobile battery.

A one-piece cable tie includes a locking head and an attached strap, the locking head being adapted to receive and selectively engage a portion of the strap when the tie is formed into a closed loop. The cable tie additionally includes a fastener formed onto the locking head that is designed for connection with the electrical connector for an oxygen sensor for an automotive emissions control system. The fastener includes a flattened platform that is spaced away from the top surface of the locking head by an inverted T-shaped standoff, the flattened platform being sized and shaped to be slidably disposed within a corresponding slot formed in the electrical connector. A ratchet-shaped projection is formed onto the flat top surface of the platform that serves to retain the platform in place within the slot in the electrical connector. The ratchet-shaped projection includes a tapered surface that extends at an acute angle relative to the top surface of the platform and an abutment surface that extends at a right angle relative to the top surface of the platform.