Ground start device for turbojet engine

Abstract

The invention relates to the technical field of auxiliary power units, in particular to a ground start device for a turbojet engine. The ground start device comprises an electrical system and a fuel system, wherein the electrical system comprises a driver, adjustable power supplies, a voltage-stabilized supply and relays; the fuel system comprises an ignition oil pump, a priority oil pump and fuelfilters; after the ignition oil pump and the priority oil pump work, fuel is divided into two paths to flow through an ignition oil input and a priority oil input interface on a ground start device panel from an external oil tank, enters two paths of the internal fuel filters and then enters the ignition oil pump and the priority oil pump, and is output to two paths of oil inlet interfaces from apanel ignition oil output interface and a priority oil output interface. The ground start device for the turbojet engine is high in starting efficiency; the device is not affected by the landform andthe starting on a special site can be realized; and furthermore, the device is simple in structure, and the small-size turbojet engine can adopt a plurality of ground start devices on a test flight site after matched flight, so that the multi-machine simultaneous starting and multi-machine simultaneous aircraft task are achieved.

Description

technical field [0001] The invention relates to the technical field of auxiliary power devices, in particular to a ground starting device for a turbojet engine. Background technique [0002] For turbojet engines, in order to start the engine reliably and meet a certain starting acceleration, it is generally used to start with a ground air source vehicle or a windmill to achieve a suitable speed. This type of operation is complicated and the starting equipment is inconvenient to move, which has great limitations. The traditional starting method of starting the engine is easily restricted in outdoor operation, and the cost is high. Therefore, it is necessary to develop suitable starting equipment to realize the starting problem of the turbojet engine in the outdoor environment. [0003] At present, the starting device of small turbojet engines mainly adopts large equipment vehicles with built-in starting equipment, pipelines and cables. After the engine is matched to the flig...

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Problems solved by technology

[0004] The present invention aims at the above-mentioned deficiency that existing turbojet engine ground starting device exists, provides a kind of turbojet engine ground starting device, and this turbojet engine ground starting device solves the low starting efficiency of the existing starting device, cumbersome equipment, and Affected by the landform, it is impossible to start on a special site. At the same time, it is impossible to realize the rapid start and multi-machine start on the test site after the small turbojet engine is mated.

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