How many types of diesel preheater are there? Installation of Diesel Preheater

There are two types of diesel preheater: flame jet preheater and electric heating wire preheater. When purchasing the preheater, the merchant will provide the installation drawing of the preheater. There are some deviations in the use of each preheater. The specific installation and use method is the best according to the official. The purchased preheater can also be installed in a professional repair shop outside.

The poor cold start performance of diesel engine is a prominent problem in the use of diesel engine. It is of practical significance to analyze the influencing factors of cold start of diesel engine and put forward measures to improve its cold start performance. In order to improve the low-temperature starting performance of diesel engine, besides optimizing the design of diesel engine itself, the most important thing is to adopt low-temperature auxiliary measures. At present, the main measures to improve the starting performance of diesel engines are heat preservation and preheating.

The following are the solutions to the difficulties in starting diesel vehicles in winter:

1, increase the inlet temperature by preheating;

The most important parameter affecting the cold start performance of diesel engine is the compressed oil-gas temperature. Increasing the compression ratio and intake temperature of diesel engine can increase the temperature in the combustion chamber, thus promoting the ignition of diesel engine during cold start. Install glow plug or flame heater in the intake pipe of diesel engine to preheat the intake airflow; Combustion preheating can also preheat the intake airflow by burning a small amount of fuel in the intake manifold of diesel engine.

2. Increase the temperature of cooling liquid by preheating;

Increasing the temperature of coolant is an important measure to reduce the heat transfer from gas in cylinder to combustion chamber wall. A heater is installed in the cooling system of the diesel engine to heat the cooling liquid of the diesel engine, so as to raise the overall temperature, thereby reducing the friction and wear between the cylinder and the friction pair such as piston and bearing, and reducing the resistance of the diesel engine during cold start.