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DET piston air leakage measuring instrument calibration device

A calibration device and piston air leakage technology, which is applied in the direction of measuring device, by measuring the rate of increase and deceleration of fluid, and using liquid/vacuum degree for liquid tightness measurement, etc., can solve the problems of not being able to realize intelligence and reducing the efficiency of measurement , to achieve the effect of improving efficiency and high-precision measurement

Pending Publication Date: 2021-04-30
上海典圆测试设备有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] The accuracy of the piston leakage measurement in the existing technology needs to be improved, and at the same time, it cannot realize intelligent measurement, which greatly reduces the efficiency of the measurement. Therefore, it is necessary to develop a DET piston leakage measuring instrument calibration device

Method used

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  • DET piston air leakage measuring instrument calibration device
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Embodiment Construction

[0018] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. Similarly generalized, the present invention is therefore not limited by the specific embodiments disclosed below.

[0020] Secondly, the present invention is described in detail in conjunction with schematic diagrams. When describing the implementation of the present invention in detail, for the convenience of explanation, the cross-sectional view showing the device structure will not be partially enlarged accor...

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Abstract

The invention belongs to the technical field of piston air leakage measuring instruments, and particularly relates to a DET piston air leakage measuring instrument calibration device which comprises a pressure stabilizing tank, a flow meter, a flow regulating valve, a flow bypass valve, a draught fan and a controller. The flow meter is fixedly installed at the left side end of the pressure stabilizing tank, and the flow regulating valve is fixedly installed at the left side end of the flow meter. The fan is fixedly installed at the left side end of the flow regulating valve, a flow bypass valve is fixedly installed between the flow regulating valve and the fan, and the flow meter, the flow regulating valve, the flow bypass valve and the fan are all electrically connected with the controller. The flow meter comprises a flow pipe, pipeline connectors, a temperature detection device, a shell, a detection coil assembly, a driving coil assembly and a transmitter, the pipeline connectors are fixedly installed on the left side and the right side of the bottom of the shell, and the comprehensive effects that high-precision measurement is achieved, meanwhile, intelligent measurement is achieved, and the measurement efficiency is improved are achieved.

Description

technical field [0001] The invention relates to the technical field of piston air leakage measuring instruments, in particular to a calibration device for a DET piston air leakage measuring instrument. Background technique [0002] The piston is a reciprocating part in the cylinder block of an automobile engine. The basic structure of the piston can be divided into top, head and skirt. The top of the piston is the main part of the combustion chamber, and its shape is related to the selected form of the combustion chamber. Gasoline engines mostly use flat-top pistons, which have the advantage of small heat-absorbing areas. There are often various pits on the top of the piston of a diesel engine, and its specific shape, position and size must be adapted to the requirements of the mixture formation and combustion of the diesel engine. The air leakage of engine piston is an important index to evaluate the tightness of engine cylinder and piston ring. [0003] The accuracy of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/00G01M3/02G01M3/26
CPCG01M3/007G01M3/025G01M3/26
Inventor 查显威陈蕾
Owner 上海典圆测试设备有限公司
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