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Control piston measurement and assembly system and method for variable-compression-ratio engine

A technology for controlling pistons and assembly systems, applied in engine control, measuring devices, machines/engines, etc., can solve problems such as errors in the system assembly process, manufacturing errors, etc., to improve operating efficiency, reduce labor intensity, and ensure installation quality Effect

Active Publication Date: 2021-11-02
DONGFENG MOTOR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application provides a control piston measurement and assembly system for a variable compression ratio engine, which solves the technical problem in the related art that the variable compression ratio engine is prone to errors in the entire system assembly process due to the manufacturing errors of the parts themselves and the system

Method used

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  • Control piston measurement and assembly system and method for variable-compression-ratio engine
  • Control piston measurement and assembly system and method for variable-compression-ratio engine
  • Control piston measurement and assembly system and method for variable-compression-ratio engine

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Embodiment 1

[0035] Please refer to Figure 1 to Figure 3 , this embodiment provides a control piston measurement and assembly system for a variable compression ratio engine, including an assembly line body 1, a measuring device 2 and an optional assembly device 3, and the variable compression ratio engine 6 moves along the assembly line body 1 and sequentially Via measuring device 2 and optional assembly device 3 .

[0036] The variable compression ratio engine 6 has a control piston, a control tooth plate 8 and a control cylinder, the control piston is fixed to the rod portion of the control tooth plate 8, and the control cylinder is used to control the control piston. The control piston is fixedly connected with the control tooth plate 8, and the control piston is fixedly installed on the upper end of the control tooth plate. In the variable compression ratio engine 6, the engine also has a combustion piston, which is the main part of the combustion chamber. One side of the combustion ...

Embodiment 2

[0077] Based on the control piston measurement and assembly system for a variable compression ratio engine in Embodiment 1, this embodiment provides a control piston measurement and assembly method for a variable compression ratio engine, which can be referred to Figure 5 , this method includes the following steps:

[0078] The variable compression ratio engine 6 enters the measuring device 2 through the assembly line body 1;

[0079] Pre-rotate the crankshaft 9 of the variable compression ratio engine 6, and lock the crankshaft 9 phases;

[0080] Rotate the crankshaft 9 so that the control tooth plate 8 is in the bottom dead center state, and measure the distance H value between the top of the control tooth plate 8 and the bottom of the control cylinder;

[0081] Complete the H value measurement of all cylinders and obtain the measurement results;

[0082] The variable compression ratio engine 6 enters the optional assembly equipment 3 through the assembly line body 1, and...

Embodiment 3

[0086] Based on the control piston measurement and assembly system for a variable compression ratio engine in embodiment 1, and the control piston measurement and assembly method for a variable compression ratio engine in embodiment 2, this embodiment further improves the method and proposes a A control piston measurement and assembly method for a variable compression ratio engine, such as Figure 5 shown, including the following steps:

[0087] The variable compression ratio engine 6 follows the row tray 5 through the assembly line body 1 and enters the measurement station to which the measurement device 2 belongs, and the measurement starts;

[0088] The variable compression ratio engine 6 is lifted and positioned through the accompanying pallet 5;

[0089] The lifting and clamping mechanism 202 clamps down the cylinder block of the variable compression ratio engine 6;

[0090] Pre-rotate the crankshaft 9 of the variable compressor engine, and lock the crankshaft 9 phases;...

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Abstract

The invention discloses a control piston measurement and assembly system for a variable-compression-ratio engine, relates to the technical field of variable-compression-ratio engines, and solves the technical problem that errors are prone to occurring in the assembly process of the whole system due to manufacturing errors of parts and systems of variable-compression-ratio engines in related technologies. The variable-compression-ratio engine comprises a control piston, a control toothed plate and a control cylinder. The system comprises an assembly line body and a measurement device and a matching assembly device which are arranged on the assembly line body; the measurement device is used for measuring an H value, and the H value is the distance between the top end of the control toothed plate and the bottom of the control cylinder when the control toothed plate is in a bottom dead center state; and the matching assembly device is used for performing matching of the control piston according to the H value. According to the system, measurement and installation of the control piston of the variable-compression-ratio engine are effectively achieved, the measurement precision is ensured, the installation accuracy is also ensured, and the operation efficiency is also remarkably improved.

Description

technical field [0001] The invention relates to the technical field of variable compression ratio engines, in particular to a control piston measurement and assembly system and method for variable compression ratio engines. Background technique [0002] The compression ratio is the ratio of the total volume of the cylinder to the volume of the combustion chamber. The higher the compression ratio, the better the combustion efficiency. However, the higher the compression ratio, the higher the knocking of the engine, and the easier it is for the cylinder and piston to knock and wear. Therefore, variable compression ratio engine technology emerges as the times require. [0003] Mr. Viane Rabi discloses a variable compression ratio engine which improves the efficiency of piston internal combustion engines used at variable loads and speeds by adjusting the effective displacement or volume ratio of the engine during operation. The mechanical transmission of the variable compressi...

Claims

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Application Information

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IPC IPC(8): B23P21/00B23P19/027B23P19/00G01B21/16F02D15/00
CPCB23P21/004B23P19/027B23P19/00G01B21/16F02D15/00
Inventor 董璠张洪杜泽国
Owner DONGFENG MOTOR GRP
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