FIELD: engines and pumps.
SUBSTANCE: invention relates to liquid-propellant engines (LPE) and can be used at their bench fire development for improvement of operating reliability of a combustion chamber. LPE containing a frame, components, consumption manifolds, a chamber that includes fuel manifolds on a nozzle and a cylindrical part, a pipeline for fuel transfer between manifolds with a fuel drain valve installed in it, in which, according to the invention, in the pipeline for fuel transfer between manifolds in front of the fuel drain valve there installed is a T-piece, to the threaded nozzle of which there connected is a fuel drain line consisting of a transition piece, a pipeline and a reusable start and cutoff valve fixed on the frame tie member, between the transition piece and the pipeline of the fuel drain line there installed is an eccentric compensator, in a detachable connection between the pipeline and the reusable start and cutoff valve of the fuel drain line there installed is a turning flange, and attachment clamps of the reusable start and cutoff valve to the frame tie member are adjustable. The pipeline of the fuel drain line has a compensation bend.
EFFECT: improving reliability and duration of operation of the chamber due to excluding the occurrence of a coke-shaped film on the inner cover of the chamber on the side of the cooling circuit during several cutoffs of the engine at shutdown.
4 cl, 12 dwg
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Authors
Dates
2015-07-10—Published
2014-06-10—Filed