JPS60127414U - Silencer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 is a side view showing an exhaust system of an automobile engine equipped with a conventional muffler, Fig. 2 is a perspective view showing the muffler of the present invention, Fig. 3 is a sectional view taken along line AA in Fig. 2, FIG. 4 is a perspective view of the movable wall, FIG. 5 is a diagram showing the noise damping effect obtained by the resonance chamber space, and FIG. 6 is a diagram showing the noise damping effect obtained by the expansion chamber space. 1: Engine, 2: Exhaust manifold, 3: Exhaust pipe, 4
: Front silencer, 5: Main silencer, 6: Tail end silencer, 7: Cylinder body, 8: End plate, 9: End plate, 10: Casing, 11: Inlet pipe, 12: Outlet pipe, 13: Movable wall, 14: Disc, 15
: Hanging wall, 16: Radiation wall, 17: Central axis, 18: Gear,
19: motor, 20: output shaft, 21: gear, 22: controller, 23: partition wall, 24: through hole, 25: space, 26: space.

Claims (1)

[Scope of utility model registration request] A thick disc-shaped casing with a hollow interior is provided with an inlet pipe and an outlet pipe, and consists of an arc-shaped part and an extension part extending from one end edge of this arc-shaped part toward the cylindrical surface of the casing. A resonant chamber space is provided in which the exhaust gas flowing from the inlet pipe toward the outlet pipe does not flow through the movable wall that rotates at the same time as the movable wall and the partition wall that is in sliding contact with the outer peripheral surface of the arc-shaped part of the movable wall, and at least one of the movable wall and the partition wall is provided. A silencer comprising a through hole that communicates the resonance chamber space with the expansion chamber space in the remaining part of the casing.