Bitzer Compressor 4VESP-10P-40S

09/08/2020

The evolution history of air compressors

The (mechanical) vacuum pump made in Germany in 1640 is the originator of modern air compressors. 　　 Around 1800, the first single-stage (reciprocating piston) air compressor was made in the UK, and its discharge pressure was 1.38MPa (gauge pressure).

07/23/2020

The damage of air-conditioning refrigeration compressor and its preventive measures

An 82000DWT bulk carrier of a shipping company broke down on the 7th day after leaving the factory. The crew described that when it started, the air-conditioning refrigeration compressor could not run continuously, and a large current occurred and an alarm was triggered.

06/05/2025

How to choose screw air compressor with or without oil

In screw air compressors, they are classified according to the type of lubrication, which are mainly divided into two types: oil lubrication and no oil. Literally, it is easy to understand whether or not air compressor lubricants are needed.

07/20/2020

Pay attention to these for compressor maintenance safety!

Oxygen blowing system is forbidden: Oxygen is colorless, odorless, non-toxic, non-combustible and non-explosive. However, mixing with other combustible or explosive gases will promote combustion or explosion;

06/29/2020

Several causes of compressor burning

09/05/2022

Stepper Motor: Working Principle, Operating Modes & Application

Stepper motor, also known as <strong>step motor</strong>, <strong>stepping motor</strong>, converts received electric pulse signal into angular displacement or linear displacement.

01/05/2021

Refrigeration Compressor

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11/21/2024

Types of EGR Valves with Working Principle Diagrams

The EGR (Exhaust Gas Recirculation) valve is a device used to reduce diesel engine emissions. It can send part of the exhaust gas back into the intake passage, thereby reducing the generation of nitrogen oxides (NOx).

07/18/2020

Common faults and solutions of refrigeration compressors

Liquid shock refers to the situation where the refrigerant fails to absorb heat or evaporates sufficiently, and the refrigerant liquid or wet steam is sucked into the compressor by the compressor. It is called liquid shock.

02/05/2025

The Difference between Hermetic and Semi-Hermetic Compressors

The compressor is the primary equipment in the refrigeration system. It converts electrical energy into mechanical energy, compresses low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure gas, and ensures the cycle of refrigeration.