CS215435B1 - Muffler - Google Patents

Abstract

The invention solves the problem of increasing the insertion loss and lower back pressure of the exhaust muffler. The essence of the invention is a new internal arrangement of the elements of the exhaust muffler. Its interior is composed of an inlet partition in which two inclined front pipes are mounted, further from the front resonator partition in which a perforated pipe passing through the resonator partition is mounted. Behind it is a middle partition with two inclined rear pipes. The last one is the outlet partition through which the outlet resonator pipe connected to the outlet pipe passes.

Description

The invention solves an increase in insertion loss and lower exhaust muffler backpressure.

SUMMARY OF THE INVENTION The present invention is based on a new internal arrangement of the muffler elements. Its interior is composed of an inlet compartment in which two oblique front tubes are mounted, and a front resonator compartment in which a perforated tube is fastened passing through no resonator compartment. Behind it is a central compartment with two oblique no tubes. The last one is the \ output bin through which the output | a resonator tube connected to the outlet tube.

Giant. 1 «3« 31

215434 3 215434

The present invention relates to mufflers for flowing gases, but in particular to mufflers for internal combustion engines. Various design solutions for exhaust silencers are known which more or less meet the required criteria. The main criterion is the reduction of the noise of the flowing gases, others are eg compliance with backpressure, long service life, small volume, simple design, low price and the like. The most commonly used inside the shock absorber are the corner partitions with holes. Fixed pipes are also used in the holes.

The disadvantage of the above-mentioned design simple exhaust silencers is either a relatively low insertion loss or a high backpressure at a higher number of silencers.

An increase in insertion loss and a decrease in back pressure can be achieved by the exhaust silencers according to the invention.

The muffler according to the invention has a housing, inlet and outlet lid with an inlet and outlet pipe identical to known mufflers. Its interior is comprised of an inlet compartment with a slanted front tube, a front resonator partition in which a perforated tube extends through any resonator partition. Behind it is a central compartment with an oblique no pipe. The last one is the outlet compartment through which the outlet resonator tube is connected and connected to the outlet tube. Podfa

Claims (4)

OBJECT 1. Exhaust silencer, the outer part of which is composed of a shell which is connected to an inlet lid in which the inlet pipe is fixed and an outlet lid in which the outlet pipe is attached, characterized in that its interior is also composed of an inlet compartment ( 16) with an inclined front tube (17), a front resonator baffle (18) in which a perforated tube (19) is fastened, passing through any resonator baffle (20), behind which the central baffle (21) is with no inclined tube (22) the last one being the exit tray (23) through which the exit of the invention passes, two inclined tubes can be fixed in the entry tray and the middle tray. The advantage of this solution is to achieve a high insertion attenuation at a low exhaust silencer backpressure. This advantage is obtained mainly by a suitable arrangement with the angled tubes. FIG. 1 is a schematic cross-sectional view of an exemplary specific embodiment of the muffler of the present invention. FIG. 2 shows the middle silencer compartment with the yard angled no tubes. The outer part of the muffler consists of a casing 11 with an inlet lid 12 through which the inlet tube 13 passes and an outlet lid 14 through which the outlet tube 15 passes. Its interior is comprised of an inlet compartment 16 in which two oblique front tubes 17 are fixed. from a front resonator compartment 18 in which it is; a perforated tube 19 extending through any resonator baffle 20 is fixed thereto. Behind it is a central baffle 21 with two oblique no tubes 22. The last is an exit baffle 23 through which the exit resonator tube 24 communicates with the outlet tube 15. Exhaust silencers of the invention may be used in particular as exhaust silencers for internal combustion engines. OF THE INVENTION a resonator tube (24) connected to an outlet tube (15). Exhaust silencer according to item 1, characterized in that two inclined front tubes (17) are fixed in the inlet compartment (16). Exhaust silencer according to item 1, characterized in that two angled rear tubes (22) are fixed in the central compartment (21). Exhaust silencer according to item 2, characterized in that two angled rear tubes (22) are fixed in the central compartment (21). 1, FIG. 1 215 435 Giant. 2