85results about How to "Good fuel atomization" patented technology

A main swirler of a triple annular configuration that is partitioned by a pre-filmer and a separator is installed in an inlet port of a main air flow channel. The vicinity of the inner wall of the main air flow channel provided with a main fuel injection port is bulged radially outward from the innermost surface (innermost surface of a small swirler) of a main swirler. Further, a distance from the main fuel injection port and the pre-filmer is set such that an effective opening area between the pre-filmer and “the inner wall of the main air flow channel provided with the main fuel injection port” is equal to an effective opening area of the small swirler. The swirling directions of the swirlers of the main swirler are “clockwise”-“counter-clockwise”-“clockwise” respectively along the radial outward direction when the swirling direction of the innermost swirler is taken as “clockwise”.

A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

A fuel additive, especially for gasoline and diesel engines, has a major portion of lithium aromatic sulfonate and an organic peroxide; for example, lithium bezene sulfonate and as the peroxide methyl ethyl ketone peroxide and/or tert-butyl perbenzoate. The additives provides better mileage and better operation for internal combustion engines.

A premixed air-fuel mixture supply device is joined to a combustor liner included in a combustor for a gas turbine or an aircraft engine. The premixed air-fuel mixture supply device has a pilot fuel injection unit having an inner wall, and a prevaporizing, premixing main fuel injection unit having an outer wall surrounding the inner wall. A combustion air passage is defined by the inner and the outer wall. An intermediate wall is disposed in the combustion air passage so as to divide an upstream part of the combustion air passage into a secondary combustion air passage surrounding the inner wall, and an outer combustion air passage surrounding the intermediate wall. Fuel inject holes are formed in the intermediate wall to inject fuel radially outward into the outer combustion air passage. A swirling device is disposed in the secondary combustion air passage to swirl combustion air flowing through the secondary combustion air passage. An atomization lip is formed in a tail part of the intermediate wall.

The invention relates to a dual-valve orifice-area-variable fuel nozzle which comprises an ejector rod (1), a sleeve valve spring (2), a switching base (3), a needle valve spring (4), a sleeve valve (5), a nozzle body (6) and a needle valve (7). The sleeve valve (5) and the needle valve (7) which control opening of orifices are arranged in the nozzle body (6). The sleeve valve (5) is arranged in the nozzle body (6) and the needle valve (7) is arranged in the sleeve valve (5). The auxiliary orifice (14) and the main orifice (15) are formed in the nozzle body (6). The sleeve valve (5) controls opening and closing of the auxiliary orifice (14) and the needle valve (7) controls opening and closing of the main orifice (15). The dual-valve orifice-area-variable fuel nozzle can be applied to a fuel supply system composed of inline type fuel injection pumps or monoblock pumps, the orifice area is controlled through fuel supply pressure of the pumps, so that the law that fuel is injected slowly and then injected rapidly or the fuel is injected in a stepped mode is finally achieved, the fuel atomizing effect under low injection pressure is improved, the orifice area can be changed through fuel pressure change.

In an injection nozzle for an internal combustion engine including a nozzle housing, a closure member disposed in a nozzle opening and connected to a nozzle needle for axially moving the closure member outwardly off its seat in the nozzle opening to open the nozzle by providing a gap to permit fuel to be discharged into a combustion chamber of an internal combustion engine so as to form a fuel injection cone, the nozzle seal and the closure member have seal surface areas provided with turbulence chambers for imparting turbulence to the fuel flowing through the gap in order to more finely atomize the fuel forming the fuel cone in the combustion chamber.

An orifice disc for a fuel injector includes two orifices that provide a desired interaction between two fuel flows to increase fuel atomization and improve combustion performance. The orifice disc includes a first orifice and a second orifice that are disposed at an interaction angle relative to each other. The orifices are orientated relative to each other such that fuel flow exiting the outlets impinges on each other to further reduce the size of fuel droplets. Large dramatic changes in momentum caused by the impingement of fuel flows disintegrates fuel droplets into much smaller finer fuel droplets that provided enhanced atomization.

A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

This invention relates to novel compositions for use in fuels, gasoline, diesel, coal, ethanol fuels, and biodiesel, and processes for making the same.

Disclosed is a cross jet-hole injection nozzle with a disturbance area of an internal combustion engine, which belongs to the oil injection device of the internal-combustion fuel-oil system. The cross jet-hole injection nozzle with the disturbance area of the internal combustion comprises a precise matching part composed of a needle valve body and a needle valve; at least a cross jet-hole injection hole with the disturbance area is arranged on the head part of the needle valve body. The turbulence flow of the internal fuel oil intensity of the injection nozzle, based on the turbulence flow disturbance generated on the cross position of the sub nozzle is further improved; thereby, the fuel-oil pulverization of the injection nozzle outlet is improved; the quality of the mixed gas is improved; the combustion is enabled to be more rapid, sufficient and complete; the engine is ensured to obtain better economy, exhaust and power performance under the same injection pressure.

A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

An orifice plate used as part of a fuel injector. The orifice plate has a base portion, an offset portion integrally formed with the base portion, a flow entry side and a flow exit side, where the base portion and the offset portion are part of the flow entry side and the flow exit side. A plurality of exit apertures is integrally formed with the offset portion. Each of the plurality of exit apertures includes a plurality of stepped portions, and at least one inner diameter, and each exit aperture is disposed at an angle relative to a central axis extending through the orifice plate. Each exit aperture is of a depth that is about twice the size of the inner diameter, providing optimal atomization of the fluid as the fluid flows through the exit apertures.