Differences between gas engines and oil engines

Gas engines and oil engines are two distinct types of internal combustion engines widely used in vehicles, ships, generators, and other fields. While they share similarities, they exhibit significant differences. Here are the main distinctions between gas engines and oil engines:

FUEL TYPE

Gas engines typically use natural gas, liquefied gas, or coal gas, while oil engines utilize gasoline, diesel, or other fuel oils.

COMPONENT STRUCTURE

Gas engines incorporate specific structures like valves, combustion chambers, and ignition systems designed for gas properties. In contrast, oil engines use structures such as injectors, nozzles, cylinders, and spark plugs tailored to fuel characteristics.

SUPPLY SYSTEM

Gas engines require a gas pipeline system connected to natural gas pipelines, using gas pipelines to deliver fuel. Oil engines necessitate a fuel storage system equipped with a fuel pump, managed by the engine control system for fuel supply

COOLING SYSTEM

Gas engine combustion chambers and exhaust systems often run at significantly higher temperatures than oil engines, requiring more suitable cooling systems. Therefore, most gas engines use a gas circulation cooling system, while oil engines utilize liquid circulation cooling systems.

OUTPUT POWER

Gas engines usually exhibit higher thermal efficiency than oil engines at equivalent power outputs. How￾ever, oil engines are often more suitable for heavy-duty applications like large-load vehicles and trucks.

FUEL EFFICIENCY

Under steady-state conditions, gas engines are generally more fuel-efficient than fuel engines. However, during rapid start-ups, gas engines typically require more time to reach equivalent power output. Additionally, due to the need for special transmission pipelines and compression pumps, gas engines usually have higher installation and maintenance costs than fuel engines.

These differences between gas engines and fuel engines should be considered depending on the application and requirements to determine the optimal choice of engine type.