Application of Spherical Power Machinery in the Field of Aviation and Aerospace Flight Control Hydra

Application of Spherical Power Machinery in the Field of Aviation and Aerospace Flight Control Hydraulics

At present, the main component of the flight control hydraulic system of aircraft and missiles - the hydraulic pump - is basically a piston pump.

Due to over a century of application and optimization, the technical system of piston pumps has become highly mature. However, the piston pump has drawbacks such as large volume, heavy weight, numerous parts, and difficulty in ensuring reliability, which also restricts the further improvement of equipment performance.

The spherical pump is based on a brand - new three - dimensional spatial mechanism principle. It has very few parts, no valves, and no fragile parts. It holds the promise of supporting the flight control hydraulic system to achieve high reliability, light weight, and small size, enabling technological upgrading and enhancing equipment performance.

The spherical pump can be used as a fuel pump, coolant circulation pump, etc. on missiles and aircraft. It has characteristics such as strong anti - pollution ability, small volume and weight, and high reliability.

Applications of spherical power machinery in the fields of aviation and aerospace flight control hydraulics

As shown in the figure, the existing flight control hydraulic systems generally adopt a central main pump, and use high-pressure oil pipes to transport high-pressure oil to the actuating cylinder of each part of the fuselage. The greater defects of this system are as follows:

The system is complex and has a large self-weight.

If a fighter is hit by a bullet, the high-pressure oil pipeline is likely to be damaged, resulting in the failure of the flight control system and weak survival ability of the fighter.

The current development trend is to adopt a distributed hydraulic flight control system, that is:

Adopt a separate actuation unit (EHA) in which a pump, a motor and a hydraulic cylinder are integrated. Arrange the separate actuation units in various parts of the aircraft. Only control signals and electricity need to be transmitted to each actuation point, the high-pressure oil circuit system all over the fuselage is cancelled, the self-weight is reduced, and the survival ability of the fighter is improved.

This distributed flight control system will inevitably put forward higher requirements for the hydraulic pump: small volume, light weight, few parts and high reliability. These requirements are precisely the principle advantages of the spherical pump, and there is hope to support the engineering realization of the distributed flight control system.

Application of Spherical Power Machinery in the Field of Aviation and Aerospace Flight Control Hydraulics

Presentation diagram of plunger pump parts - complex structure, numerous parts, difficult to ensure reliability, and large in volume and weight

Applications of spherical power machinery in the fields of aviation and aerospace flight control hydraulics