3results about How to "Improve ejection ability" patented technology

The application belongs to the technical field of combustion engines, and provides a large-size side exhaust pipe of a turboshaft engine, which comprises: a pipe body having an inlet end and an outlet end; an outlet reinforcing structure arranged at the outlet end region of the pipe body; a support structure arranged inside the pipe body; an anti-abrasion connecting structure arranged at the inlet end of the pipe body; and an internal flow passage of the pipe body is configured to guide the gas input from the inlet end to be discharged laterally at the outlet end, the internal flow passage of the pipe body has a preset expansion cone angle θ2, the flow passage center line of the pipe body is a three-dimensional space curve constructed based on a non-uniform rational B-spline curve, and the ratio of the outer diameter size of the inlet end to the center transverse distance between the inlet end and the outlet end satisfies a preset condition. The core aerodynamic problem of "complex internal flow field organization of a large-size side exhaust pipe, non-uniform outlet flow field and small effective aerodynamic area" in the prior art is solved, and the limit performance of the exhaust pipe is excavated without affecting the performance of the engine.

The utility model discloses a high efficiency's fierce fire staggered floor combustion system of upper air inlet, include: furnace head subassembly, furnace base, blast box, air blower and fierce fire air outlet structure, blast box and air blower set up in the below of range panel, the blast outlet of fierce fire air outlet structure is located the above of range panel, towards the injection port of injection channel, blast box is equipped with the blast connecting port of connecting fierce fire air outlet structure, and air blower can send air through blast box to the blast outlet of fierce fire air outlet structure, the utility model discloses, break through upper air inlet space limit, realize efficient blast, the core innovation is in the ingenious adoption " blast source lower -positioned, air -supply path up -going, air -out point upper -positioned " split type design. Through special fierce fire air outlet structure, air is accurately delivered to the injection channel injection port near the above of range panel, realizes the core function of forced air supply. This design perfectly adapts the structural characteristics of all upper -positioned of upper air inlet burner injection system.

This application provides an ejector device and a solid oxide fuel cell, relating to the field of solid oxide fuel cell technology. The ejector device includes: a primary flow inlet pipe, a secondary flow intake chamber, a mixing pipe, and a diffuser pipe arranged coaxially and sequentially. The secondary flow intake chamber has a volute structure and is fitted around the outside of the tapered nozzle at the outlet end of the primary flow inlet pipe. The secondary flow intake chamber includes: a main body and an inlet pipe section, the inlet pipe section being connected to the main body, and the junction of the two forming a volute tongue. A flow divider is provided within the secondary flow intake chamber, extending from the inlet pipe section to the main body. The extended contour line of the flow divider and the volute profile of the secondary flow intake chamber and its corresponding portion are aligned. The two outlets of the two spiral flow channels formed by the flow divider have complementary circumferential coverage within the main body.