Supply-mode converting device for lubricating system

Abstract

The invention discloses a supply-mode converting device for a lubricating system, and belongs to the technical field of mechanical designs. The supply-mode converting device comprises control cavities, a valve body, a filling body, fixed bodies, through tubes, a spring, a rotating block, a rotating plate, a connecting plate, a rotating shaft and a first connecting tube, wherein the lower section of the valve body is conical; four ribs are arranged on the middle section of the valve body; an external thread is formed in the upper section of the valve body; one end of the first connecting tube is communicated with the first through tube, and the other end of the first connecting tube is communicated with an air inlet tube of an engine; one end of a second connecting tube is communicated with the internal cavity of the second control cavity, and the other end of the second connecting tube is communicated with a turbine exhaust tube. When the pressure difference of both sides of the rotating block is high, the valve body moves upwards, a main oil passage is separated from an oil return tube, and the oil pressure of the main oil passage is increased; when the pressure difference of both sides of the rotating block is low, the valve body moves downwards, the main oil passage is communicated with the oil return tube, and the oil pressure of the main oil passage is decreased. The supply-mode converting device disclosed by the invention is reasonable in design and simple in structure, and therefore, the supply-mode converting device is suitable for the optimized design of a mechanical lubricating system.

Description

technical field [0001] The invention relates to a lubricating adjustment system in the technical field of mechanical design, in particular to a lubricating system supply mode switching device suitable for supercharged engines. Background technique [0002] When the engine is working, the speed is very high, and the parts between the piston and the cylinder wall, between the connecting rod bearing bush and the crankshaft are tightly matched. If these matching parts are not fully lubricated, dry friction will occur. The heat generated by dry friction in a short period of time is enough to melt the metal, causing damage or even jamming of the parts (piston scuffing, crankshaft pads, etc.), so the matching parts in the engine must be well lubricated. When the lubricating oil flows to the mating part, an oil film will be formed on the friction surface. In order to ensure that the lubricating oil can reach the mating surface smoothly, the engine lubricating oil must have a certai...

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Problems solved by technology

[0003] After searching the prior art documents, it was found that Chinese patent application number 201110044577.9, patent name: engine oil pressure control device, this patented technology provides a kind of engine oil pressure regulating device, which can better realize the regulation of engine oil pressure; The pressure adjustment is staged, and the continuous adjustment of the oil pressure cannot be realized

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