CN-224225299-U - Oil collecting device for large motor overload of unmanned aerial vehicle

CN224225299UCN 224225299 UCN224225299 UCN 224225299UCN-224225299-U

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to an oil collecting device for large motor overload of an unmanned aerial vehicle, which comprises an oil supply oil tank, an overload oil tank and an ejector pump, wherein the oil supply oil tank is provided with an oil filling port, the oil supply oil tank is connected with the overload oil tank through a first pipeline, the first pipeline is provided with a first one-way valve, so that a medium can only flow from the oil supply oil tank to the overload oil tank, the overload oil tank is connected with an engine through a second pipeline, the ejector pump comprises a high-pressure driving fluid inlet, an ejected fluid suction port and a fluid outlet, the high-pressure driving fluid inlet is communicated with the second pipeline through the pipeline, the ejected fluid suction port is communicated with the oil supply oil tank through the pipeline, the fluid outlet is connected with the overload oil tank through the pipeline, the oil supply oil tank is provided with a bleed air port, and the bleed air port is connected with the engine through the pipeline. The fuel supply problem of the unmanned aerial vehicle under the large maneuver overload working condition is effectively solved.

Inventors

HUANG LEI
LI QIAN
WANG HUA

Assignees

壹通无人机系统有限公司

Dates

Publication Date: 20260512
Application Date: 20250522

Claims (8)

1. The utility model provides an oil collecting device for unmanned vehicles large maneuver overload, includes the fuel feeding tank, be equipped with the oil filler neck on the fuel feeding tank, its characterized in that still includes overload oil tank and ejector pump, the fuel feeding tank passes through first pipeline and connects the overload oil tank, be equipped with first check valve on the first pipeline for the medium can only flow from the fuel feeding tank to the overload oil tank, the overload oil tank passes through the second pipeline and is connected with the engine, the ejector pump includes high-pressure drive fluid entry, is ejected fluid suction inlet and fluid outlet, high-pressure drive fluid entry is linked together through the pipeline with the second pipeline, ejected fluid suction inlet pass through the pipeline with the fuel feeding tank is linked together, the fluid outlet is connected through pipeline and overload oil tank, the fuel feeding tank is equipped with the bleed air port, the bleed air port is connected with the engine through the pipeline.
2. The oil collection device for large motor overload of an unmanned aerial vehicle of claim 1, wherein the overload oil tank is located within the oil supply oil tank.
3. The oil collecting device for large motor overload of the unmanned aerial vehicle according to claim 1 or 2, wherein a third pipeline is connected between the oil supply tank and the upper part of the overload oil tank, and a second one-way valve is arranged on the third pipeline, so that medium can only flow from the load oil tank to the overload oil tank.
4. An oil collecting device for large motor overload of unmanned aerial vehicle according to claim 3, wherein an oil extractor is arranged in the overload oil tank, and the oil extractor is communicated with the second pipeline.
5. The oil collecting device for large motor overload of unmanned aerial vehicle according to claim 4, wherein said oil extractor comprises a hose, one end of said hose is connected with said second pipeline, and the other end of said hose is connected with a weight.
6. The oil collecting device for large motor overload of unmanned aerial vehicle according to claim 1, wherein the first pipeline is connected to a bottom of an oil supply tank and a bottom of an overload tank, respectively.
7. The oil collection device for large motor overloads of an unmanned aerial vehicle according to claim 1, wherein the bleed air vent is connected to an upper portion of the oil supply tank.
8. The oil collection device for large motor overload of an unmanned aerial vehicle of claim 1, wherein the oil filler is located at a top of the oil supply tank.

Description

Oil collecting device for large motor overload of unmanned aerial vehicle Technical Field The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to an oil collecting device for large maneuver overload of an unmanned aerial vehicle. Background Because unmanned vehicles often carry out a series of large maneuvers (high-angle elevation flight, high-angle dive and high-angle rolling) due to mission property in the flight process, the oil extraction modes in the existing fuel oil system are concentrated in a specific fuel tank, but the maneuver attitudes of the unmanned vehicles are often limited under the condition that the fuel oil in the specific fuel tank is not fully loaded or the fuel oil amount is small in the later stage of the flight, so that the unmanned vehicles can safely run, and the unmanned vehicles lose the opportunity of escaping by utilizing the flight attitudes when being attacked. Disclosure of utility model In view of the above deficiencies of the prior art, it is an object of the present utility model to provide an oil collection device for large maneuver overloads of unmanned aerial vehicles. In order to achieve the above purpose, the technical scheme adopted is as follows: The utility model provides an oil collecting device for unmanned vehicles large maneuver overload, includes the fuel feeding tank, be equipped with the oil filler neck on the fuel feeding tank, still include overload oil tank and ejector pump, the fuel feeding tank passes through first pipeline connection overload oil tank, be equipped with first check valve on the first pipeline for the medium can only flow from the fuel feeding tank to overload oil tank, overload oil tank passes through the second pipeline connection and has the engine, the ejector pump includes high-pressure drive fluid entry, is ejected fluid suction inlet and fluid outlet, high-pressure drive fluid entry is linked together through the pipeline with the second pipeline, ejected fluid suction inlet is linked together through the pipeline with the fuel feeding tank, the fluid outlet is linked together through the pipeline with overload oil tank, the fuel feeding tank is equipped with the bleed air port, the bleed air port is connected with the engine through the pipeline. The technical scheme has the advantages that the ejector pump (taking high-pressure fuel oil of the engine oil supply pipeline as a driving source) is used for continuously sucking the fuel oil of the oil supply tank to the overload oil tank, the first one-way valve allows the fuel oil to naturally flow into the overload oil tank (driven by liquid level difference) from the oil supply tank, the fuel oil is supplemented through gravity difference, but reverse flow is prevented, the fuel oil is prevented from flowing back into the oil supply tank from the overload oil tank in overload, meanwhile, the ejector pump can be used for forcibly supplying the fuel oil to realize double-margin oil supply, the air-entraining vent is used for balancing the air pressure of the oil supply tank, vacuum or pressure accumulation is avoided in fuel oil conveying, and meanwhile, the stability of a fuel oil system is improved by utilizing engine air entraining. Based on the technical scheme, the utility model can also make the following improvements: preferably, the overload oil tank is located within the oil supply oil tank. The technical scheme has the beneficial effects that the overload oil tank can be flexibly arranged in or out of the oil supply oil tank, so that the space layout requirements of different aircrafts can be met. Preferably, a third pipeline is connected between the oil supply tank and the upper part of the overload oil tank, and a second one-way valve is arranged on the third pipeline, so that the medium can only flow from the load oil tank to the oil supply tank. The technical scheme has the beneficial effects that the oil spilling or gas of the overload oil tank is allowed to return to the oil supply oil tank, so that the damage of the overload oil tank due to oil filling or gas accumulation is avoided. Preferably, an oil extractor is arranged in the overload oil tank, and the oil extractor is communicated with the second pipeline. Preferably, the oil extractor comprises a hose, one end of the hose is communicated with the second pipeline, the other end of the hose is an oil suction port, and the other end of the hose is connected with a heavy hammer. The technical scheme has the beneficial effects that the hose and the heavy hammer enable the oil suction port to always move along with the liquid level of the fuel, so that the oil suction port is immersed in the fuel under any overload state, and even if the fuel floats upwards due to inertia, the heavy hammer drives the hose to track the position of the fuel, and the suction is avoided. Preferably, the first pipeline is connected with the bottom of the oil supply tank and the bottom