Spraying direction adjustable inclined hole fuel injector adapter device

Abstract

The invention discloses a spraying direction adjustable inclined hole fuel injector adapter device. The spraying direction adjustable inclined hole fuel injector adapter device comprises an fuel injector adapter, an O-shaped seal ring, an adjustable gland, arc slots, a fuel injector, a cooling water cavity cover, threaded holes, extension pipes, a cooling water cavity and a copper gasket. An inclined step hole is formed in the middle of the fuel injector adapter. The step hole and the fuel injector are sealed through the copper gasket. The fuel injector is inclined to enable an injected oil beam to be located in the diameter direction of a high-pressure container of a high-pressure container, so that maximum visualization of the spray mist oil beam is realized. The top of the fuel injector is matched with a clamping groove of the adjustable gland. The adjustable gland is provided with the two arc slots. Compression bolts are arranged in the arc slots. The compression bolts rotate in the arc slots to adjust the direction of a fuel injector spray hole. The outer side of the fuel injector is provided with the cooling water cavity. The cooling water cavity cover is provided with the two threaded holes used for being connected with a water inlet pipe and a water outlet pipe. The lower portions of the water inlet holes are connected with the extension pipes, so that cooling water is made to directly impact the lowest portion of the cooling water cavity, and the cooling water in this place is forced to flow for heat transfer. The situation that a great deal of steam is generated at a water flow dead point is prevented.

Description

technical field [0001] The invention relates to the field of high-pressure vessel window design, in particular to an adapter device for an oblique-hole fuel injector with adjustable injection direction. Background technique [0002] Improving the spray combustion process of diesel engines is an important part of diesel engine research, which is directly related to the improvement of diesel engine economy, power, emission and other performance. In order to study the effect of spray combustion in the cylinder of internal combustion engines, high-pressure container experimental devices such as constant volume bombs are often used. The fixing method and position of the injector in the high-pressure vessel determine the length and direction of the spray that we can observe from the optical window of the high-pressure vessel, which plays an important role in the study of combustion spray. [0003] Diesel engine injectors are mostly multi-hole injectors, the direction of the injec...

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Problems solved by technology

[0004] In view of the above technical problems, the object of the present invention is to provide an adapter device for an inclined-hole fuel injector with adjustable injection direction. The present invention places the multi-hole injector obliquely and designs an adjustable gland, thereby solving the problem of fuel injection combustion. The problem of realizing the maximum visualization of the injected oil beam when shooting and studying the single nozzle hole of the multi-hole injector in the experiment

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