Engine exhaust system, engine and car
An exhaust system and engine technology, applied in engine components, machines/engines, exhaust devices, etc., can solve problems such as reducing exhaust noise and failing to improve low-speed torque of the engine, so as to reduce exhaust noise and improve power performance. , the effect of increasing low-speed torque
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[0041] In the prior art, after the muffler is arranged on the exhaust pipe, when the engine rotates at a low speed, the exhaust back pressure at the outlet of the exhaust valve is large; when the engine rotates at a high speed, the exhaust pipe exhaust back pressure is large. The front muffler of the present invention utilizes the principle of sound wave interference, and when the engine rotates at a low speed, the exhaust back pressure at the outlet of the exhaust valve decreases; at the same time, when the engine rotates at a high speed, the exhaust back pressure of the exhaust pipe also decreases.
[0042] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0043] Power performance is a core evaluation index of the engine. According to the engine principle, increasing the intake air density and ...
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