Executing mechanism with differential pressure force and spring force synchronous acting

Abstract

The invention relates to an executing mechanism with differential pressure force and spring force synchronous acting in the technical field of mechanical design. The executing mechanism comprises control cavities, a valve, a filling body, a spring, a rotating plate, a rotating shaft and a first connecting pipe. The lower section of the valve is in a conical shape. Four ribs are arranged in the middle section of the valve. An outer thread is arranged on the upper section of the valve. One end of the first connecting pipe is communicated with a cavity in the right side inside the second control cavity. The other end of the first connecting pipe is communicated with an engine air inlet pipe. One end of the second connecting pipe is communicated with a cavity in the left side inside the second control cavity. The other end of the second connecting pipe is communicated with a turbine exhaust pipe. When the pressure difference of the two sides of the rotating plate is large, the valve moves upwards, a main oil way is separated from an oil returning pipe, and the machine oil pressure of the main oil way is increased; and when the pressure difference of the two sides of the rotating plate is small, the valve moves downwards, the main oil way is communicated with the oil returning pipe, and the machine oil pressure of the main oil way is reduced. The executing mechanism is reasonable in design, simple in structure and suitable for optimal design of a mechanical lubrication system.

Description

technical field [0001] The invention relates to a lubricating adjustment system in the technical field of mechanical design, in particular to a pressure differential force spring force synchronous action type actuator 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 lubricat...

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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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