A hierarchical atomization oil throwing disc and an engine

CN120626345BActive Publication Date: 2026-06-26AECC HUNAN AVIATION POWERPLANT RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AECC HUNAN AVIATION POWERPLANT RES INST
Filing Date
2025-07-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing oil slingers have a limited effect on fuel atomization, especially when the combustion chamber is operating at low capacity, resulting in poor atomization. Furthermore, they cannot change the position of the fuel atomization zone, which affects the performance of the combustion chamber.

Method used

A graded atomizing oil-slinging disc is designed. By setting a diversion protrusion in the radial cavity of the disc body, the cavity is divided into multiple oil collection chambers. The position and number of the injection holes are set according to a certain rule to achieve multi-stage atomization of fuel at different speeds.

Benefits of technology

It significantly improves fuel atomization performance, achieves uniform and multi-stage fuel atomization, reduces processing costs, and extends the service life of the oil slinger.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120626345B_ABST
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Abstract

The application provides a hierarchical atomization oil flinger and an engine, and belongs to the technical field of power machinery. The hierarchical atomization oil flinger comprises an oil supply assembly and a disc body. The outer side of the ring cavity of the oil supply assembly is provided with a jet hole. The disc body is rotatably sleeved on the outer side of the ring cavity. The radial recess cavity of the disc body is divided into two oil collecting cavities by a shunt protrusion. The oil collecting cavities are provided with a plurality of oil injection holes. The jet hole is located in the radial projection area of one of the oil collecting cavities. In use, after the ring cavity is filled with fuel, the fuel is injected into one of the oil collecting cavities from the circumferential jet hole. When the rotating speed of the disc body is low, the fuel cannot fill the oil collecting cavity and is sprayed out through the oil injection hole of the oil collecting cavity, that is, single-stage atomization. When the rotating speed of the disc body is high, the fuel fills the oil collecting cavity and overflows, spreads over the shunt protrusion, and enters the other oil collecting cavity. The oil injection holes of the two oil collecting cavities start to work, and double-stage atomization is realized. The hierarchical atomization oil flinger provided by the application solves the problem that the oil flinger in the prior art has a single fuel atomization effect.
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