JPS5835611U - Silencer - Google Patents

Abstract

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

Description

[Brief explanation of the drawing]

Figure 1 is a half-sectional perspective view showing a conventional example, and Figure 2 is a book! FIG. 3 is a half-sectional perspective view showing one embodiment of the proposal, and a characteristic line diagram showing the silencing characteristics of the conventional muffler and the muffler of this example. 2...first resonance chamber, 2A...first introduction pipe, 3.
...Second resonance chamber, 3A...Second introduction pipe, 4...
Inlet pipe, 13...inner pipe.

Claims (1)

[Scope of utility model registration request] - A silencer having at least an expansion chamber, a second low frequency resonance chamber adjacent thereto, and a first low frequency resonance chamber further adjacent thereto;
The introduction pipes of each of the two low frequency resonance chambers are connected to the expansion chamber, and each is inserted into an inlet pipe connected to the exhaust sound generator and a separator constituting the expansion chamber on the side remote from the second low frequency resonance chamber. In the silencer facing the inner pipe, the length of the part of the introduction pipe facing the inlet pipe that protrudes from the separator between the expansion chamber and the second low frequency resonance chamber is longer than that of the introduction pipe facing the inner pipe. A silencer characterized by: