Backwash clamp used for fuel manifold nozzle

Abstract

The invention discloses a backwash clamp used for a fuel manifold nozzle. The problems that in the prior art, a leather case is connected with the nozzle and is prone to falling; a tubular structure in which a ball is matched with a conical surface is connected with the nozzle, and the through connection function can not be achieved; and the outer surface of the nozzle is a smooth surface but not a threaded surface, and fixing can not be carried out through a clamp are mainly solved. The backwash clamp used for the fuel manifold nozzle comprises a plurality of sector-shaped body connecting cylinders, a hollow connecting sleeve and an adapter. The lateral sides of the multiple sector-shaped body connecting cylinders are sequentially connected in an end-to-end manner to form a cylindrical connecting cylinder. The outer wall of the cylindrical connecting cylinder is sleeved with a sleeve. The hollow connecting sleeve is clamped into the cylindrical connecting cylinder in a connected manner. One end of a connector is fixed into the hollow connecting sleeve. A first hollow cylinder, a second hollow cylinder, a third hollow cylinder, a fourth hollow cylinder and a fifth hollow cylinder are sequentially arranged from the top to the bottom of the cylindrical connecting cylinder. The diameter of the first hollow cylinder is equal to the diameter of the third hollow cylinder. By means of the scheme, the backwash clamp achieves the aims that falling is not prone to occurrence, and through connection can be achieved.

Description

technical field [0001] The invention relates to a jig for nozzle flushing, in particular to a jig for backwashing nozzles of fuel main pipes. Background technique [0002] The RD-93 engine is the power plant of the FC-1 "Fierce Dragon" fighter, which is improved by the Russian Klimov Design Bureau on the basis of the original RD-33 engine (used in the MiG-29 fighter) with a high thrust-to-weight ratio A certain type of afterburning engine; the fuel main pipe in the RD-93 engine is used to supply the fuel required to adjust the engine under various working conditions and working conditions, so as to ensure the safe and reliable operation of the engine and give full play to its performance. The fuel main pipe is an accessory that connects the pump and each nozzle in the fuel system. The nozzle sprays the pressurized fuel into the combustion chamber in the form of mist, so that it can be mixed with air for combustion. The nozzle of the RD-93 engine is a centrifugal nozzle, and...

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that the holster connection nozzle is easy to fall off, the pipe structure connection nozzle with the ball head and the cone surface can not realize the transfer function, and the outer surface of the nozzle is a smooth surface, not a threaded surface, and the clamp cannot be fixed

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