117results about How to "Improve homogenization" patented technology

A blending apparatus for blending a first fluid stream having a first density and a second fluid stream having a second fluid density, the first density being greater than said second density, is discussed. The apparatus includes a first fluid director including a plurality of baffles affixed therein to create turbulence and shear in the first fluid, a cylindrical second fluid director, a primary mixing chamber receiving the first sheared fluid from the first fluid director and receiving the second fluid from the second fluid director, wherein the first fluid and second fluid are mixed in the primary mixing chamber to form a mixed primary fluid stream, and a secondary blending chamber comprising at least one static mixer and coaxially aligned with and receiving the mixed primary fluid stream from the primary mixing chamber.

The invention provides an injection system for injecting an air / fuel mixture into a combustion chamber of a gas turbine engine, the injection system having a longitudinal axis and comprising fuel injection means, interposed between first and second air injection means, the fuel injection means being disposed in an annular internal cavity of a Venturi, the fuel injection means comprising at least a first fuel admission circuit provided with at least one fuel injection orifice, and a plurality of second fuel admission circuits independent from the first fuel admission circuit(s), each being provided with at least one fuel injection orifice so as to define a plurality of independent modes of injecting the air / fuel mixture depending on determined operating speeds of the engine, the fuel injection orifice of the first fuel admission circuit being formed in the upstream wall of the Venturi so as to inject fuel towards the combustion chamber in a general direction that is substantially perpendicular to a flow of air coming from the first air injection means, and the fuel injection orifices of the second fuel admission circuits being formed in the downstream wall of the Venturi so as to inject fuel towards the combustion chamber in a general direction that is substantially perpendicular to a flow of air coming from the second air injection means.

A light source unit is provided with a substrate and segments of a reflector. The substrate has a plurality of light-emitting devices mounted on its central and peripheral portions. The segments correspond to the light-emitting devices, individually. The segment corresponding to the light-emitting devices mounted on the central portion are higher in thermal radiation capacity than the segment corresponding to the light-emitting devices mounted on the peripheral portion.

An optical amplifier system includes a diode pump array including a plurality of semiconductor diode laser bars disposed in an array configuration and characterized by a periodic distance between adjacent semiconductor diode laser bars. The periodic distance is measured in a first direction perpendicular to each of the plurality of semiconductor diode laser bars. The diode pump array provides a pump output propagating along an optical path and characterized by a first intensity profile measured as a function of the first direction and having a variation greater than 10%. The optical amplifier system also includes a diffractive optic disposed along the optical path. The diffractive optic includes a photo-thermo-refractive glass member. The optical amplifier system further includes an amplifier slab having an input face and position along the optical path and separated from the diffractive optic by a predetermined distance. A second intensity profile measured at the input face of the amplifier slab as a function of the first direction has a variation less than 10%.

An exhaust gas-treating device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, is provided with a housing (2), which has a jacket (3) extending circumferentially on the side and at least one bottom (4). The homogenization of the exhaust gas flow is improved with a mixing housing (14), which is arranged in the interior space (23) of the housing (2) and which has a mixing chamber (15). An inlet (16) of the mixing housing passes through the bottom (4) and communicates with the mixing chamber (15). An outlet (17) of the mixing housing passes through the bottom (4) and communicates with the mixing chamber (15).

An apparatus for blending two or more fluid streams, wherein a first fluid has a higher density than the other fluids, includes a first fluid director and at least a second fluid director providing fluid communication of a first and second fluid stream, respectively, to a primary mixing chamber. The first fluid director includes one or more baffles to disturb the first fluid stream and to direct it toward a rearward portion of the first inlet to the primary mixing chamber. A secondary blending chamber is in fluid communication with the primary chamber outlet and includes at least one, and preferably two static mixers. When two static mixers are serially retained in the secondary blending chamber, they may be skewed rotationally relative to each other such that the orifice profiles of each static mixer are not in alignment.

Methods and devices for producing cavitation in tissue are provided. In one embodiment, a shock scattering method of Histotripsy therapy comprises delivering an initiation pressure waveform from an ultrasound therapy transducer into tissue, the initiation pressure waveform being configured to produce at least one bubble in the tissue, delivering a scattering pressure waveform from the ultrasound therapy transducer into the at least one bubble within a life-cycle of the at least one bubble, and producing cavitation nuclei near the at least one bubble with the scattering pressure waveform. The scattering pressure waveform can be delivered during the life-cycle of the at least one bubble. In some embodiments, the scattering pressure waveform is delivered within 5 μs to 1 s of the initiation pressure waveform. Systems for performing shock scattering Histotripsy therapy are also discussed.