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466results about How to "Improve ignition performance" patented technology

On-duty flame stabilizer

The invention discloses an on-duty flame stabilizer, which comprises an atomization slot, an oil injection rod, an evaporation tube, a stabilizer side wall and air injection holes, wherein the atomization slot is a slot-shaped structural part with certain wall thickness and is arranged in the evaporation tube, a slot mouth points downstream, and the oil injection rod is at downstream position; the oil injection rod is provided with a plurality of oil injection holes and is arranged in the evaporation tube; the evaporation tube is a slot-shaped structural part with the air injection holes at both sides and certain wall thickness, and the outer side of the evaporation tube is provided with a stabilizer side wall; the stabilizer side wall is a two-side plat plate type structural part with certain wall thickness, and two flat plates have a certain flare angle downstream; a gap is left between the atomization slot and the evaporation tube, and the gap is flush at the head part of the stabilizer; a gap is left between the evaporation tube and the stabilizer side wall, and the gap is flush at the head part of the stabilizer; the air injection holes are positioned at both sides of the evaporation tube close to the bottom; and the on-duty flame stabilizer can be used in an aircraft engine and a stamping engine to improve the ignition performance, the flame stability and the combustion efficiency.
Owner:PEKING UNIV

Combustor of a gas turbine engine

The present invention provides a combustor of a gas turbine engine, including: a fuel spray portion configured to spray a fuel so as to create a diffusion combustion region in a combustion chamber; a pre-mixture supply portion configured to supply a pre-mixture gas including the fuel and an air so as to create a pre-mixture combustion region in the combustion chamber, the pre-mixture supply portion being positioned concentrically with the fuel spray portion so as to surround the fuel spray portion; and an annular separation portion disposed between a downstream end of the fuel spray portion and a downstream end of the pre-mixture supply portion so as to separate the diffusion combustion region and the pre-mixture combustion region from each other.
Owner:KAWASAKI HEAVY IND LTD

In-situ combustion combustion-supporting ignition method

ActiveCN104453817AReduce moisturePlay the role of profile control and channel sealingFluid removalElectricityHeating time
The invention discloses an in-situ combustion combustion-supporting ignition method. The method comprises the steps that an electric igniter is tripped in the preset position in an oil tube in a well; air is continuously injected into the well from the oil tube at a first preset speed, and after a liquid level in the well is pressed into a stratum, the electric igniter is started to heat the injected air; after the air is heated by the preset heating time, a power source of the electric igniter is turned off, the electric igniter is taken out, and the air is continuously injected at the first preset speed in the process of taking out the electric igniter; air is injected into the well from the oil tube at a second preset speed, meanwhile, iron pulverized coal is injected, and an oil layer of a heavy oil reservoir is ignited under the action of heat released by combustion of the iron pulverized coal and the air. Through the electric igniter, the oil layer is preheated, and water of near bore zones is reduced. The iron pulverized coal has the functions of profile correction and channeling blocking, combustion products are stored in holes, a gas entry profile continues to be adjusted, ignition is facilitated better, gas channeling is reduced, and meanwhile fast ignition is achieved.
Owner:PETROCHINA CO LTD

Elongating arc plasma jet ignition device

Disclosed is an elongating arc plasma jet ignition device. A swirler is fixed to the bottom of an inner cavity of a shell; a positive pole is located in the shell and fixedly connected with the swirler; the lower end of an insulation sleeve is installed in a central hole of the swirler, and an air chamber is formed in the gap between the outer peripheral surface of the middle of the insulation sleeve and the inner surface of the shell. A negative pole is embedded on a negative pole installation base, and the arc end of the negative pole extends out of the lower end of the insulation sleeve to be located in the positive pole. An arcing distance 2-8 mm long is kept between the arc end of the negative pole and a nozzle of the positive pole; an air inlet pipe is located at the upper end of the shell and communicated with the space of the air chamber formed between the insulation sleeve and the shell. The taper angle beta of the arc end of the negative pole is 40 degrees. The taper angle alpha of a contraction section of the positive pole is 60-90 degrees. Eight swirling holes with the spiral angle of 45 degrees are evenly distributed in an end surface of the swirler, and work media passing through the swirler generate swirling flow. The elongating arc plasma jet ignition device has the advantages of being high in flame spreading speed, high in penetrating power and rich in active air plasma.
Owner:AIR FORCE UNIV PLA

Fuel supply apparatus and fuel supply control apparatus for internal-combustion engine

A fuel supply apparatus includes a component adjustment unit, a low-pressure side passage, and a valve. The unit adjusts component composition of fuel by separating a particular component from fuel. The unit includes a component separation wall, which divides an interior of a portion of a fuel supply passage between an anterior chamber and a posterior chamber. The wall includes a separation membrane, which the particular component of fuel in the anterior chamber selectively permeates to be separated. The particular component after passing through the wall is temporarily stored in the posterior chamber. When the low-pressure side passage connected to the posterior chamber is opened by the valve, the particular component is separated. Fuel, from which the particular component is separated, is supplied to an injection valve from the anterior chamber. When the low-pressure side passage is closed by the valve, the separation of the particular component is restricted.
Owner:DENSO CORP

Gas burner for dryer

Gas burner for a dryer including a gas nozzle for receiving, and injecting gas, a mixing tube for mixing the gas injected from the gas nozzle and primary air, igniter fitted to an outlet of the mixing tube for igniting the gas mixed with the primary air coming out of the outlet of the mixing tube, and a flame holder fitted to the outlet of the mixing tube having flame holes for splitting, and ejecting the gas mixed with the primary air in burning the gas, thereby forming shorter flame lengths, and securing stability of the flame by enhancing an initial igniting capability, and splitting the flame into many parts to increase introduction of secondary air into the flame.
Owner:LG ELECTRONICS INC

Composite oxide, process for producing the same, and exhaust gas reducing co-catalyst

A composite oxide includes CeO2, ZrO2 and a metallic oxide being free from reacting with CeO2 and ZrO2 at 700° C. or more, preferably at 900° C. or more and further preferably at 1,000° C. or more. The composite oxide has a regulatory oriented phase, such as a pyrochlore phase, etc., in which at least a part of Ce cations and Zr cations are oriented regularly. The composite oxide makes a catalytic support. The CeO2—ZrO2 composite oxide and the reaction-free metallic oxide make barriers each other which suppress the granular growth when the composite oxide is subjected to high-temperature heat in a reducing heat treatment to form the regulatory oriented phase. The regulatory oriented phase improves the oxygen storage-and-release capability of the catalytic support. Thus, it is possible to simultaneously attain a large a specific surface area and a high oxygen storage-and-release capability.
Owner:TOYOTA CENT RES & DEV LAB INC
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