Method for controlling a compressor that provides drive to pneumatic tools

By controlling the working pressure and flow rate of the compressor, the drill hammer is ensured to work under optimal conditions, thus solving the problem of low drill hammer efficiency caused by pressure loss during drilling and improving drilling efficiency and economy.

CN116888366BActive Publication Date: 2026-05-26ATLAS COPCO AIRPOWER NV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ATLAS COPCO AIRPOWER NV
Filing Date
2022-03-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During drilling, pressure loss causes the actual pressure of the drill hammer to be lower than the maximum pressure, making it unable to work at the optimal power and speed. Furthermore, the economic efficiency is poor as the depth increases. Existing technologies cannot effectively control the pressure and flow rate of the compressed air supplied by the compressor.

Method used

By controlling the compressor's working pressure and flow rate, the maximum allowable pressure and air consumption of the drill hammer are ensured not to be exceeded. The flow rate is regulated by adjusting the compressor speed and throttling the intake valve to ensure that the drill hammer works under optimal conditions.

Benefits of technology

This enables the drill hammer to operate at optimal power and speed at any depth, avoiding structural damage and improving drilling efficiency and economy.

✦ Generated by Eureka AI based on patent content.

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Abstract

A method for controlling a compressor (10) that provides drive to a pneumatic tool having a maximum permissible pressure (p_max) and an associated compressed air consumption (q_max), the method comprising the step of adjusting the operating pressure (p_compr) of the compressor (10), the method comprising: if the operating pressure (p_compr) is lower than p_max minus a value (Z), controlling the compressor (10) such that the flow rate supplied by the compressor (10) is unrestricted; if the operating pressure (p_compr) is higher than or equal to p_max, controlling the compressor (10) such that the flow rate supplied by the compressor (10) does not exceed the compressed air consumption (q_max) at p_max; and if the operating pressure (p_compr) is higher than p_max minus a value (Z) and lower than p_max, controlling the compressor (10) such that the operating pressure (p_compr) remains lower than p_max.
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