Engine piston mechanism and machining method thereof as well as corresponding engine and automobile
A piston mechanism and engine technology, applied in the direction of engine components, machines/engines, pistons, etc., can solve the problems of complex piston processing technology, piston skirt knocking noise, high manufacturing precision requirements, etc., to achieve stable piston head and reduce quality , The effect of ensuring accuracy
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Embodiment 1
[0040] A kind of engine piston mechanism, structure such as Figure 1 to Figure 3 As shown, it includes a piston head 6, a piston skirt and a piston pin seat 8.
[0041] The piston head 6 is provided with four oil holes 10, and the outer circumference is provided with three piston grooves 7 along the circumference, as image 3 shown.
[0042] The piston pin seat 8 is fixedly connected to the end surface of the piston head 6, and has two axially spaced structures with piston pin holes 11, and the inner wall of the piston pin hole 11 is provided with an oil storage tank 9 in the axial direction. The structure of the piston pin seat 8 reduces the overall mass of the piston, and the light weight of the piston is conducive to reducing the impact force on the piston pin, connecting rod, and crankshaft. In addition, the mass of the piston is small, and the inertial force when the piston reciprocates is small, and the inertia The smaller the force is, the more favorable it is for th...
Embodiment 2
[0047] An engine, the main structure of the engine differs from the prior art only in that its piston mechanism is exactly the same as that of Embodiment 1.
[0048] The structure of other parts of the engine is the same as the prior art.
[0049] When the motor in this embodiment is working:
[0050] The roller 1 is in rolling contact with the cylinder wall. Compared with the traditional piston, the contact area between the roller 1 and the cylinder wall is small, thereby reducing the wear of the piston and improving the service life of the engine.
Embodiment 3
[0052] A kind of automobile, the difference between this automobile and the prior art is that its engine has exactly the same structure as embodiment 2.
[0053] The structure of other parts of this automobile is identical with prior art.
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