Automatic regulating device and automatic regulating method for lubrication oil pressure of aerial piston engine

A technology of piston engine and oil pressure, applied in the direction of controlling the pressure of lubricant, etc., can solve the problems of affecting flight safety, drop of oil pressure of engine lubrication system, poor lubrication of engine and its accessories, etc.

Inactive Publication Date: 2012-10-10
CHINA HANGFA SOUTH IND CO LTD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the practice of high-altitude flight, it is often found that the lubricating oil pressure of the engine lubrication system drops, which will cause poor lubrication or even deterioration of the engine and its accessories, and affect flight safety. The solution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automatic regulating device and automatic regulating method for lubrication oil pressure of aerial piston engine
  • Automatic regulating device and automatic regulating method for lubrication oil pressure of aerial piston engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0031] The applicant conducted in-depth research on the mechanism of lubricating oil pressure drop in the lubricating system of the engine running at high altitude, eliminated the interference factors, and found the main reason for the lubricating oil pressure drop in the lubricating system: under the condition of constant engine speed, the flight altitude increases When the atmospheric pressure drops, the pressure in the lubricating oil pump absorption chamber also decreases accordingly, the amount of air overflowing from the lubricating oil vapor and lubricating oil increases, and the volume occupied by the foam increases, which reduces the lubricating oil supply and the outlet pressure, that is, the engine Oil pressure in the lubrication system dr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an automatic regulating device and an automatic regulating method for lubrication oil pressure of an aerial piston engine. The automatic regulating method comprises that the oil return quantity from a main oil passage to an oil return passage is controlled through a pressure regulating valve which is arranged between the main oil passage and the oil return passage of a lubricating system, wherein the oil return quantity which is controlled by the opening degree of the pressure regulating valve decreases with the lubricating oil pressure in the main oil passage, the pressure regulating valve is turned off under the lubricating oil pressure that the lubricating system is at a critical height, the lubricating oil quantity supplied to the main oil passage by the lubricating system at the critical height exceeds the minimum lubricating oil circulation quantity required by the engine, and the critical height is a preset value which is higher than the ceiling height of an aircraft. In the device, when the lubricating oil pressure decreases, the oil return quantity from the main oil passage to the oil return passage decreases till the pressure regulating valve is turned off, so that sufficient oil supply for lubrication pairs is guaranteed, and influence of atmospheric pressure during high-altitude flight is avoided.

Description

technical field [0001] The invention relates to an aviation piston engine, in particular to a lubricating oil pressure automatic adjustment device and an automatic adjustment method for the aviation piston engine. Background technique [0002] For the aviation piston engine to work reliably, the friction pairs must be lubricated. On the one hand, it reduces the wear and tear caused by the direct contact of the machine parts, thereby prolonging the service life of the machine parts; on the other hand, it changes the dry friction into liquid surface friction, reduces the energy loss caused by friction, and improves the mechanical efficiency. At the same time, the machine parts are cooled, and any kind of friction will release heat. If this part of heat is not dissipated, the machine parts will be in danger of overheating. [0003] When the lubricating oil passes through the bearing, it not only lubricates the parts, but also takes away heat. The greater the amount of lubrica...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/16
Inventor 贺俊张进于锦丽
Owner CHINA HANGFA SOUTH IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap