US1024688A - Muffler. - Google Patents

Description

. E. D. LEWIS.

MUFPLER. Y

APPLICATION FILED AUG. 9, 1911. l

1,024,688'. f Patented Apr. 3o, 1912.

UNITED STATES PATENT einen..

EDWARD EUDLEY LEWIS, OF ELMIRA, NEW YORK, ASS-IGNOR TU HEATER-MUFFLEB CO., 0F ELMIBA, NEW' YORK, A.

MUFFLER.

Specification of Application filed August 9,

To all/whom it may concern. M

Be it known that I, EDWARD Donner LEWIS, a citizen of the United States, and resident of Elmira, in the count-y oit (lie mung and'State ot New York, have invented certain new and useful Improve* ments in Muiliers, of which the following is a specification.

This invention relates to muiiiers for overcoming the noise produced by engines; that exhaust forcibly into atmosphere, and has for its object a device o't' the rharaffter nientioned that is simple and cheap in construetion, and that is also highly ell'ieient.

The miiiier in question speciality designed for use in connection with gas engines of the explosion type from which the exhaust is expelled with suoli force that the noise is particularly objectionable.

Referring to tho drawings: Figure l is a central., longitudinal section of the inniier on the line l., l ot Fig. 2; and Fig. is a cross-section on the line ZMZ of Fig. l.

The inulller comprises a plurality of sinii lar inter-connnunicating, hollow sections connected together, each section consisting, broadly speaking, 0f a chamber having inlet and outlet parts that are oppositely located in corresponding positions in each section, and containing,V perforated partitions that cause the gas to take a eiroiiitous course through the mutiler and gradually transforms the pulsations oi the noisy, eb;- piosive exi :inst to a eontinuous noiseless dis charge.

In the drawings the hollow sections are represented. as eoneaie, and mafie up troni two similar eoiiraye members i, l, iiavii flanged edges 2, 2, which are rheaply torinesi by casting or stamping. sections These make a rery ehr-ap moitier for they 'are all made from the same mitm/'mand so are interehangeable, and besides the rounifled, hotlow ein inbers Iormefl by them when :iS-l sen'ibleii :j specially well adapted to serre as expaneion chambers, in wliioh the may lose, the pressure under which it is di charged it'rom the engine, The fiiifr'torated partitions 3 arg, respectively, represented Letters Patent. Patented Apr. 30, 1912.

191i. Serial No. 643,229.

heid between the flanges 2, Z of theseetions, so that they are Secured in place by the flanges when the latter are tasteii'ed together, by rivets or other means, in forming the sections. The perforated partitions are also made to serve the purpose. oi' de'- tieetors to turn the gas as it enters the seetions ontwardiy toward the pertoratione Ll (see Fig. 'through which. it. passes in its course to the next section, and are adapted to that purpose by being' formed with eentrai, pyraniidal projections 5, that extend in the opposite direction te that in which the gases Henn Thus, the are caused to flow through the muffler in a eirenitoue course, as indicated by the arrow, iii which -the gas is given an opportunity 'to expand. as it enters theseetions successively, and is also repeatedly choked back by the perforated partitions 3 till finally it exhausts troni the muilier in a. continuons discharge that is noiseless. The end eeetions are pro- 'vided with suitable coupling members 6.

The sections are eenneeted to each other by metall rings 'Z' that have pliant flanges 8 adapted to ne broughttogetlier so te clamp aiifd retain rigidly between them the edges of both the adjacent seetionsu Timexx it is obvious; thatI the inuliier can be built from a supply of sections consisting of het ion' members ali of which areQoioiie pat; tern, arigitions all alike, and coupling; ringsall the rame with the exception et tlioee that serve forend Couplings which have ont lars entendingont troni them as Shown.

uiiler, the eoin lon of ar si ntoreoinmunieating hollow Sew tions each. 'termed of two identical, oppo sitelV-disi'iosed reiitrallypeitorated eoi'iotivJ members haring tianged engine, the mehr here ot the sections being; ail inter-change# zihle and earh section. containing a periti rated Central partitioirplate whieli @laminat in piace by the flanges ot i mein bers; substantially as shown and dtseriiied.

A moitier having, in combination, a pluraiity oi oppositely-disposed eoneave members with adjoin ng edges, and rings eey of Lf-shaped eross-seeiion embracing and damping said edges together-- 3. A niuiier having, in Combination, tivo Oppositely-disposed concave members with 5 outw@diy-projecting peripheral Hanges, un inermediae haeqihite with its periphery embrace/il between said funges, and a chimp` ,ese

ing-ring of i-shaped eress-seeion embracing the anges und .securing Said members and the bahia-pluie together.

EDVARD DUDLEY LENIS. Vftnesses r M. F. GOODYEAR, H. C. hummm.

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