초록 ▼

The invention refers to the mixing of gas or gases with air, in a controllable ratio, by means of a mixing apparatus wherein the entrance air is forced in a complete developed rotation stream, by which a strong suction pressure is created in the center, so that gas can be sucked in ratio independent

The invention refers to the mixing of gas or gases with air, in a controllable ratio, by means of a mixing apparatus wherein the entrance air is forced in a complete developed rotation stream, by which a strong suction pressure is created in the center, so that gas can be sucked in ratio independent of the total volume per second. The mixing ratio of gas and air is controlled through an adjustable angle of the air entrance nozzles. The rotating airstream is accelerated in the radial entrance plane and via a logarithmic curved profile, the airstream is guided in the axial outlet direction of the mixing apparatus. The rotating airstream develops a center-core stream, where inside it a maximal under-pressure is created. By this underpressure, the main gasstream can be sucked and mixed with the airstream via the whirl grates, which are fixed in the outletsection just in front of the mixture outlet valve.

대표청구항 ▼

Apparatus for forming a homogenous mixture of air and combustion gas to be supplied to a combustion engine in a controllable mixing ratio which apparatus comprises: (a) a mixer body formed of an elongated cylindrical mixer house, having a first end and a second end, for mixing said air and combustio

Apparatus for forming a homogenous mixture of air and combustion gas to be supplied to a combustion engine in a controllable mixing ratio which apparatus comprises: (a) a mixer body formed of an elongated cylindrical mixer house, having a first end and a second end, for mixing said air and combustion gas; a vortex flange member spaced from said first end for introducing said air and combustion gas into the interior of said mixer house; and a gas inlet flange member on said vertex flange member remote from said mixer house for receiving at least said combustion gas; (b) a plurality of air-guiding nozzles spaced equally around the circumference of said first end between said vortex flange and said first end for directing air radially into said mixer house at an angle, each of said air-entry nozzles being pivotally mounted on a pivot-shaft extending between said first end and said vortex flange so that said angle is adjustable to control the angle of air fed into said mixer house and provide a spiralling air stream circulating around the interior of said mixer house toward said second end; (c) combustion gas inlet means comprising a centrally positioned opening in said vortex flange for introducing said combustion gas into the central portion of said mixer house; (d) gas mixing means intermediate said centrally positioned opening and said second end for forming a homogenous mixture of said spiralling air and said combustion gas; and (e) throttle valve means intermediate said gas mixing means and said second end for controlling the volume of said homogenous gas mixture to be supplied to said engine.