Vacuum air intake rubber hose for diesel engine

Abstract

The invention relates to a vacuum intake rubber hose for a diesel engine, which comprises a rubber hose body. The rubber hose body is provided with at least one deformation cavity along the length direction of the rubber hose body. The inner diameter of the deformation cavity is larger than the inner diameter of the rubber hose body. The outer wall forms a bulge, and the two ends of the bulge make a smooth transition with the outer wall of the rubber hose body. The inner wall of the deformation chamber has a circular arc structure, and the inner wall of the deformation chamber and the inner wall of the rubber hose body have a circular arc transition. Adopting the above-mentioned technical solution, that is, a variable-diameter deformation chamber is set on the traditional equal-diameter rubber hose, which effectively prevents the rubber hose from being sucked and deflated when the turbocharger speed fluctuates and the intake pressure decreases; avoiding engine air intake Fluctuation, to ensure the stability of engine performance, to avoid the problem of causing the diesel engine to turn off and extinguish the car caused by the introduction of gas fluctuations. In addition, the vacuum intake hose can withstand greater vibration, especially the deformation of axial tension, which is superior to the traditional equal-diameter hose.

Description

technical field [0001] The invention belongs to the technical field of machine manufacture, and in particular relates to a vacuum intake rubber hose for a diesel engine. Background technique [0002] The vacuum intake hose is an important spare part in the engine, and the quality of the intake hose will directly affect the performance of the engine. The current vacuum intake hose generally adopts equal-diameter hose, see figure 2 , when this kind of rubber hose is actually used, there is a phenomenon of suction and deflation, which in turn causes the problem of uneven air intake of the engine. The stability of the engine performance is affected, and even the diesel engine will be turned off and the car will be extinguished. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides a device with simple structure, convenient use, improved engine performance and stability, and avoids the phenomenon of...

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Problems solved by technology

[0003] In order to solve the technical problems existing in the known technology, the present invention provides a device with simple structure, convenient use, improved engine performance and stability, and avoids the phenomenon of flameout and car extinguishing caused by uneven air intake of the intake hose.

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