ITECH Power Supply IT6953A

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/14/2020

The difference between oil cooler and other coolers

An oil cooler is a heat exchanger that uses air to cool hot fluid. Like other coolers, rust scale will appear. The rust scale appears mainly because the cooling water contains a large amount of calcium, magnesium ions and acid carbonates.

08/17/2020

Detecting and repairing methods for problems in shell and tube condensers

Since the central air conditioner is a kind of refrigeration equipment, it must be equipped with a condenser, and most of them are shell and tube condensers. When the device has been used for a long time, some inconveniences may occur.

07/08/2022

Installation and Adjustment of Proportional Valves in Your Car

The proportional valve is mounted between the brake line master cylinder and the rear wheels. It's designed to adjust the pressure between the front and rear brakes, depending on how hard you're stopping.

09/07/2020

Do you know how the model designation of the air compressor comes from

Four basic marking methods 　　 1. Use motor horsepower to express: This was still feasible when the air compressor technology was not developed in the early days. However, with the continuous development of technology, even if the same motor is used now,

08/08/2020

The cold water (freezing) machine displays the reverse phase loss fault quick troubleshooting

The cold water (freezing) machine shows a reverse phase loss fault, which is a common fault of abnormal power supply. The reason for this failure is simple, and it is very convenient to repair, as long as there is a little electrician foundation, it can b–ﰨ2䀀湠疖

08/27/2020

Design and Application of Universal Crank and Connecting Rod Mechanism

First, let me introduce the function of the crank connecting rod mechanism to the internal combustion engine: 1) convert heat energy into mechanical energy; 2) piston reciprocating linear motion becomes crankshaft rotation motion; 3) output continuous power to related transmission devices.

07/18/2020

Process and cause of liquid shock in piston refrigeration compressor

Piston refrigeration compressor liquid hammer process and reasons for liquid hammer 1. Introduction The phenomenon that liquid refrigerant and/or lubricating oil is sucked into the compressor cylinder with the gas and damaged the suction valve plate

07/10/2020

Hitachi

Hitachi original place：Japan Brand introduction: Hitachi was established in 1910. In the industry, it is a diversified enterprise integrating household appliances, computer products, semiconductors, industrial machinery and other products.

12/13/2022

Differences between Rolling and Sliding Linear Guideways

Linear guideways are often referred to as guides for short, and their function is to support and guide moving parts for linear reciprocating motion along a given trajectory and stroke.