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Cooling test device of engine piston injected oil

A technology of fuel injection cooling and test device, which is applied in the direction of internal combustion engine testing, etc., can solve the problem of difficult engine piston cooling cavity oil flow and other problems

Inactive Publication Date: 2012-05-09
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, the engine oil in the piston cooling chamber of the engine oscillates strongly with the up and down movement of the piston. If the influence of the piston movement on the oil flow in the cooling chamber is not considered, it will be difficult to accurately obtain the oil flow rate of the engine piston cooling chamber

Method used

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  • Cooling test device of engine piston injected oil
  • Cooling test device of engine piston injected oil
  • Cooling test device of engine piston injected oil

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Experimental program
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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 , 2 As shown, the engine piston oil injection cooling test device includes a cylinder body 1 and a piston 2, the piston 2 is arranged in the cylinder body 1, the piston 2 is connected with the crankshaft 9 through the connecting rod 3, and one end of the crankshaft 9 is connected with the power input device; the piston 2 A cooling chamber 19 is provided inside, the inlet 17 of the piston cooling chamber is correspondingly provided with an oil spray device 10 , and the outlet 18 of the piston cooling chamber is connected to an oil collecting device.

[0022] Both ends of the crankshaft 9 are fixed by main bearings 8 .

[0023] The power input device includes a motor 14, the output shaft of the motor is connected to one end of the crankshaft 9 through a bushing 11, the output shaft of the motor is provided with a speed sensor 13 ...

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Abstract

The invention relates to a cooling test device of engine piston injected oil, comprising a cylinder body and a piston, wherein the piston is arranged in the cylinder body; the piston is connected with a crank shaft through a connecting rod, and one end of the crank shaft is connected with a power input device; the entrance of a piston cooling cavity is correspondingly provided with an oil injection device; and the exit of the piston cooling cavity is connected with an engine oil collecting device. The invention can accurately acquire the engine oil flow rate of the engine piston cooling cavity.

Description

technical field [0001] The invention relates to an engine experiment equipment, in particular to an engine piston oil injection cooling test device. Background technique [0002] The piston is one of the key components of the internal combustion engine, and its working condition is directly related to the reliability of the internal combustion engine. The working environment of the piston is harsh, not only bears a large mechanical load, but also the top surface is periodically heated by high-temperature gas. High temperature, high load, high motion speed, poor lubrication and difficult cooling make it one of the most faulty parts in the engine. The gap between the piston and cylinder liner decreases with the increase of temperature, so the piston temperature must be controlled reasonably to prevent the piston from being stuck in the cylinder liner due to excessive temperature. In addition, if the temperature of the piston exceeds the limit that the piston material can wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/04
Inventor 胡玉平白书战李国祥王任信孙平闫理贵陆健刘浩业李世伟边晓婷王慧辉
Owner SHANDONG UNIV