阅读说明：本技术 一种航空发动机 (Aircraft engine ) 是由 李兴胜 廖树才 周云锋 周丹 黄友 于 2021-11-08 设计创作，主要内容包括：本发明涉及航空发动机技术领域,具体为一种航空发动机,包括气缸头和具有进气管的供气系统,所述进气管上连接有对进气管的内部进行加热的加热机构。本方案解决了现有技术中如何进一步提高航空发动机的输出功率的问题。(The invention relates to the technical field of aero-engines, in particular to an aero-engine which comprises a cylinder head and an air supply system with an air inlet pipe, wherein a heating mechanism for heating the interior of the air inlet pipe is connected to the air inlet pipe. The scheme solves the problem of how to further improve the output power of the aircraft engine in the prior art.)

1. An aircraft engine, including cylinder head and air supply system that has the intake pipe, its characterized in that: the air inlet pipe is connected with a heating mechanism for heating the inside of the air inlet pipe.

2. The aircraft engine of claim 1, wherein: the heating mechanism comprises a heating pipe for conveying heat-conducting fluid, and the heating pipe is attached to the outer side of the air inlet pipe.

3. The aircraft engine of claim 2, wherein: the cooling water circulation system is provided with a hot water delivery pipe, and the heating pipe is communicated with the hot water delivery pipe.

4. The aircraft engine of claim 3, wherein: the cylinder head is provided with a hot water outlet, and the water inlet end of the heating pipe is communicated with the hot water outlet.

5. The aircraft engine of claim 4, wherein: the air inlet pipe is an air inlet manifold connected to the cylinder head, and the heating pipe is arranged between the intersection of the air inlet manifold and the hot water outlet.

6. An aircraft engine according to any one of claims 2 to 5, wherein: the heating pipe comprises a heat conduction cavity contacted with the air inlet pipe, a water inlet section is arranged on the heat conduction cavity along the radial direction of the pipe cavity of the air inlet pipe, and a water outlet section is arranged on the heat conduction cavity.

7. The aircraft engine of claim 6, wherein: the water inlet section and the water outlet section are vertically arranged.

8. The aircraft engine of claim 7, wherein: the pipe diameter of the water inlet section is smaller than that of the water outlet section.

9. The aircraft engine of claim 8, wherein: the heat conduction pipe and the air inlet pipe are integrally formed.

Technical Field

The present invention relates to aircraft engines.

Background

The aero-engine is a device for generating mechanical energy by converting combustion fuel, therefore, a corresponding air intake system can be arranged on the aero-engine to provide fuel required by combustion, the fuel is generally in an oil-gas mixing state and is conveyed into an engine combustion chamber through an air intake pipe, combusted waste gas is discharged through an exhaust system, meanwhile, a large amount of heat can be generated during fuel combustion, and then, a cooling water circulation system can be arranged on the aero-engine to cool the engine. With the increasing demand for the output power of the aircraft engine, how to further increase the output power of the aircraft engine becomes a problem to be solved.

Disclosure of Invention

The invention aims to provide an aircraft engine to solve the problem of how to further improve the output power of the aircraft engine in the prior art.

In order to achieve the above object, a basic scheme of the present invention provides an aircraft engine, which includes a cylinder head and an air supply system having an air inlet pipe, wherein the air inlet pipe is connected with a heating mechanism for heating the inside of the air inlet pipe.

The beneficial effect of this basic scheme lies in: the heating mechanism is used for heating the inside of the air inlet pipe, so that the output power of the aero-engine is improved by more than 5%.

Further, heating mechanism is including the heating pipe of carrying heat-conducting fluid, the heating pipe sets up with the outside laminating of intake pipe. By adopting the arrangement, the heating mechanism has simple structure and is convenient to manufacture.

Further, the cooling water circulation system with the hot water delivery pipe is further included, and the heating pipe is communicated with the hot water delivery pipe. By adopting the arrangement, the air inlet pipe is heated by utilizing the water which absorbs the heat of the engine and is in the hot water conveying pipe of the cooling water circulation system, so that the heating effect of the air inlet pipe can be ensured, and the problem of rapid increase of the weight of the engine caused by arranging parts such as an independent heat source and the like can be solved.

Furthermore, a hot water outlet is arranged on the cylinder head, and the water inlet end of the heating pipe is communicated with the hot water outlet. By adopting the arrangement, the water which is discharged from the cylinder head and absorbs the heat of the engine directly enters the heating pipe to heat the air inlet pipe, thereby being beneficial to further stably improving the output power of the engine.

In order to further improve the output power of the engine, the air inlet pipe is an air inlet manifold connected to the cylinder head, and the heating pipe is arranged between the junction of the air inlet manifold and the hot water outlet.

Furthermore, the heating pipe comprises a heat conduction cavity contacted with the air inlet pipe, a water inlet section arranged along the radial direction of the pipe cavity of the air inlet pipe is arranged on the heat conduction cavity, and a water outlet section is arranged on the heat conduction cavity. By adopting the arrangement, the heating effect of the heating pipe on the air inlet pipe is further improved.

Furthermore, the water inlet section and the water outlet section are vertically arranged. By adopting the arrangement, the heating effect of the heating pipe on the air inlet pipe is further improved.

Further, the pipe diameter of the water inlet section is smaller than that of the water outlet section. By adopting the arrangement, the heating effect of the heating pipe on the air inlet pipe is further improved.

Further, the heat conduction pipe and the air inlet pipe are integrally formed. By adopting the arrangement, the heating effect of the heating pipe on the air inlet pipe is further improved.

Drawings

FIG. 1 is a schematic illustration of a cylinder head and intake manifold portion of an embodiment of an aircraft engine of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a sectional view taken along line a-a of fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the cylinder head 1, a cooling water circulation water channel 11, a hot water outlet 12, an air inlet pipe 2, a heating pipe 3, a water outlet section 31, a water inlet section 32 and a heat conducting cavity 33.

The embodiment is substantially as shown in figures 1, 2 and 3 of the accompanying drawings: an aircraft engine comprises a cylinder head 1 and an air supply system with an air inlet pipe 2, wherein a heating mechanism for heating the inside of the air inlet pipe 2 is connected to the air inlet pipe 2, and in the embodiment, the air inlet pipe 2 is preferably an air inlet manifold connected to the cylinder head 1. In this embodiment, heating mechanism is including carrying heat-conducting fluid's heating pipe 3, and heating pipe 3 sets up with the outside laminating of intake pipe 2, specifically, heating pipe 3 sets up the junction at intake manifold to heating pipe 3 and intake manifold integrated into one piece. In this embodiment, the heating pipe 3 includes a heat conducting cavity 33 contacting with the air inlet pipe 2, a water inlet section 32 arranged along the radial direction of the pipe cavity of the air inlet pipe 2 is arranged on the heat conducting cavity 33, and a water outlet section 31 is arranged on the heat conducting cavity 33; the water inlet section 32 is perpendicular to the water outlet section 31, and the pipe diameter of the water inlet section 32 is smaller than that of the water outlet section 31.

In this embodiment, the aircraft engine still includes the cooling water circulation system who has hot water delivery pipe, heating pipe 3 communicates with hot water delivery pipe, specifically, be provided with cooling water circulation water course 11 in the inside of cylinder head 1, set up the hot water discharge port 12 of cooling water circulation water course 11 on cylinder head 1, the end of intaking of heating pipe 3 communicates with hot water discharge port 12, the play water end and the hot water delivery pipe intercommunication of heating pipe 3, thereby make the cooling water behind the cooling cylinder directly get into the heating pipe 3 after 12 discharges from hot water discharge ports and realize the heating to intake pipe 2, carry out circulation flow through cooling water circulation system again, thereby make the cooling water that flows out cylinder head 1 can be continuous heat intake pipe 2 through heating pipe 3.

By adopting the arrangement, on the structure of the prior aero-engine, the output power of the engine can be improved by more than 5% only by connecting the heating pipe 3 between the intersection of the air inlet manifold and the hot water outlet 12 of the cylinder head 1, compared with the optimal design limit which can only be improved by 3% in the prior art, the effect is obvious, the improvement and the manufacturing cost are very low, and the influence on the parameters such as the weight, the gravity center and the like of the whole engine is very small.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.