Oil supply structure in bearing casing in air inlet casing of engine

Abstract

The invention particularly relates to an oil supply structure in a bearing casing in an air inlet casing of an engine, and the oil supply structure comprises an outer casing, an inner casing, a plurality of supporting plates, a bearing casing and an oil nozzle, wherein the outer casing is provided with an outer casing oil supply hole; the inner casing is arranged in the outer casing, and an inner casing oil supply hole is formed in the inner casing; the multiple supporting plates are supported between the outer casing and the inner casing in the circumferential direction, and an oil supply channel is formed in one of the supporting plates; the oil supply channel is communicated with the outer casing oil supply hole and the inner casing oil supply hole; the bearing casing is connected to the inner side of the inner casing, and a bearing casing oil supply hole is formed in the bearing casing; and the oil nozzle is arranged in the bearing casing, and an inlet of the oil nozzle penetrates through the bearing casing oil supply hole, is connected to the inner casing and is communicated with the inner casing oil supply hole.

Description

technical field [0001] The application belongs to the technical field of oil supply design in a bearing casing in an engine air intake casing, and in particular relates to an oil supply structure in a bearing casing in an engine air intake casing. Background technique [0002] The engine intake casing is the main load-bearing structure of the engine, mainly including the outer casing, the inner casing located in the outer casing, and the support plates distributed along the circumferential direction in the outer casing and the inner casing. [0003] In a certain type of engine, the inner casing is connected with a bearing casing. In order to supply oil to the components in the bearing casing, the outer casing is designed with an outer casing oil supply hole, and the inner casing has an inner casing oil supply hole. Holes and a support plate are cavity structures, and are designed with oil supply joints, oil supply pipes, oil supply adapters, and fuel injection nozzles. Among...

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Problems solved by technology

[0005] 1) The oil supply pipe is independent of the outer casing, inner casing, and support plate, and needs to be processed separately, which is easy to introduce processing errors, and the length of the oil supply pipe is long, making assembly difficult;

[0006] 2) During the assembly process, the welding part between the outlet end of the fuel supply pipe and the connecting plate is prone to large stress and damage;

[0007] 3) There are many component structures, the production and assembly cycle is long, and there are many connectors and sealing parts required, so it is difficult to ensure the tightness

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