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What is the working principle of the crankshaft mechanism?

1 Answers

VonAlejandro

07/25/25 11:05am

Here is the relevant introduction to the working principle of the crankshaft mechanism: 1. Working principle: The crank connecting rod mechanism is the main mechanism that converts thermal energy into mechanical energy in a reciprocating piston engine. Its function is to transform the gas pressure acting on the piston top into the rotational motion of the crankshaft, thereby outputting power externally. During engine operation, the gas pressure generated by fuel combustion directly acts on the piston top, driving the piston to perform reciprocating linear motion. Through the piston pin, connecting rod, and crankshaft, the reciprocating linear motion of the piston is converted into the rotational motion of the crankshaft. 2. Composition of the crankshaft mechanism: The form of the crank connecting rod mechanism depends on the number of cylinders and the arrangement of the cylinders. Engines with different numbers of cylinders and structures have different crank connecting rod mechanisms. The crank connecting rod mechanism mainly consists of three parts: the engine block group, the piston connecting rod group, and the crankshaft flywheel group.

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