Engine combustion chamber structure, engine and fire pump

Abstract

The invention relates to an engine combustion chamber structure, an engine and a fire pump. The engine combustion chamber structure comprises a combustion chamber cylinder block and a chamber cover buckled on the combustion chamber cylinder block, and an exhaust port of the combustion chamber cylinder block is provided with a ventilation pipeline; a rotating shaft coaxial with the ventilation pipeline is arranged in the ventilation pipeline, and the rotating shaft penetrates through a separator arranged in the ventilation pipeline; the ventilation pipeline is divided into a first cavity and a second cavity by the separator, and the first cavity is arranged close to the exhaust port; the end, located in the first cavity, of the rotating shaft is provided with a plurality of first fan blades, and the end, located in the second cavity, of the rotating shaft is provided with a plurality of second fan blades; the first cavity communicates with the exhaust pipe, and the second cavity is provided with an air inlet; and the second cavity communicates with an air cooling pipeline arranged on the periphery of the combustion chamber cylinder block through the ventilation pipe. The combustion chamber is good in heat dissipation effect.

Description

technical field [0001] The invention relates to the technical field of fire pumps, in particular to an engine combustion chamber structure, an engine and a fire pump. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At present, the fire pump uses a single-cylinder engine as the power source. The single-cylinder engine converts heat energy into mechanical energy, so that the fire pump can provide fluid with a set pressure. When the single-cylinder engine is working, the shell temperature will rise accordingly, especially for high-pressure and high-speed engines. It will be damaged due to overheating in a high temperature state. At present, there is a water pump engine whose casing is composed of two casings and a casing cover, one of which is used to install components such as the crankshaft, and the other casing is used as a combustion chamber. The...

AI Technical Summary

Problems solved by technology

[0003] At present, the fire pump uses a single-cylinder engine as the power source. The single-cylinder engine converts heat energy into mechanical energy, so that the fire pump can provide fluid with a set pressure. When the single-cylinder engine is working, the shell temperature will rise accordingly, especially for high-pressure and high-speed engines. It will be damaged due to overheating in a high temperature state. At present, there is a water pump engine whose casing is composed of two casings and a casing cover, one of which is used to install components such as the crankshaft, and the other casing is used as a combustion chamber. The air inlet and the exhaust port are set, the shell cover seals the space formed by the two shells, and a spark plug is set. When the engine is cooled down, a cooling fin is set on the shell to dissipate heat through air convection. The inventor It was found that the heat dissipation effect of this method is not good. After a certain period of use, the temperature of the combustion chamber is very high, which reduces the service life of the engine

Images