Thermal management based piston ring-cylinder liner low friction experimental system and use method thereof

Abstract

The invention relates to a thermal management based piston ring-cylinder liner low friction experimental system and a use method thereof. The thermal management based piston ring-cylinder liner low friction experimental system is characterized by comprising a cylinder liner fixing and heat transfer device for piston ring-cylinder liner fixing and heat transfer, a constant-temperature lubricant passage for providing constant-temperature lubricant for the system and a speed adjusting motor for driving a crank-connecting rod mechanism and a piston ring-cylinder liner assembly, wherein the cylinder liner fixing and heat transfer device comprises longitudinal fixing plates, clamps, cylinder liner electric heaters, a piston ring electric heater, cylinder liner thermocouples, a piston ring thermocouple and radial elastic fixing rings, the longitudinal fixing plates are symmetrically arranged on the left and right sides of a cylinder liner respectively, the cylinder liner is fixed between upper and lower inner surfaces of each longitudinal fixing plate, pretension bolts are mounted at upper and lower ends of each longitudinal fixing plate, and pressure sensors are arranged on end surfaces, contacted with the cylinder liner, of the longitudinal fixing plates; a plurality of cylinder liner electric heaters are distributed on the outer side of the cylinder liner uniformly in the height direction of the cylinder liner.

Description

technical field [0001] The invention belongs to the technical field of engine energy saving, and in particular relates to a heat management-based piston ring-cylinder liner low-friction experimental system and a use method thereof. The experimental system can manage the heat of the piston ring-cylinder liner system, study the effect of heat transfer on the friction power consumption of the piston ring-cylinder liner system, and conduct low friction tests. Background technique [0002] With the increasingly stringent automobile emission regulations and the huge consumption of fossil energy, it has brought huge challenges to the traditional internal combustion engine industry. In recent years, energy-saving and emission-reduction technologies have also made great progress. In-depth research will produce huge economic and social benefits. Piston ring-liner friction experimental system is the basis for experimental research on piston ring-liner friction. In order to further stu...

AI Technical Summary

Problems solved by technology

The Chinese patent application number 200510136811.5 discloses a friction and wear test method and equipment for cylinder liner piston ring parts. Too uniform to achieve heating of a temperature field with a large temperature gradient

[0004] Since the segmented samples of the cylinder liner and piston ring are small, the spatial distribution of temperature and deformation cannot be reflected; the rotary testing machine changes the motion state of the piston ring; the previous reciprocating testing machine did not fully investigate the heat transfer. Lack of detailed electronic control

Images