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Publication numberUS1627324 A
Publication typeGrant
Publication dateMay 3, 1927
Filing dateJul 27, 1926
Priority dateJun 12, 1925
Publication numberUS 1627324 A, US 1627324A, US-A-1627324, US1627324 A, US1627324A
InventorsHewlett Green Archibald
Original AssigneeInternat Silencer Company 1926
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Silencer for gaseous currents
US 1627324 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

19 May 27 A. H. GREEN 51mm FOR GASEOUS cunnmws Filed July 27. 1926 Patented May 3, 1927.





Application filed July 27, 1926, Serial No. 1

This inicnlion is an iniprtwcnicnl in or niodil'ication of the ii'ivcntion which is the subject of Patent No. hffn hill, relating to nilclu'eir-i l'or gaseous currents, such as are pri'uluced in the exhaust oil internal combustion engines. itluch a. s zilenccr as di-iscribeijl in the specification oil the said Patent No.

lcomprised a 1' nsversel divisible 1 body or casing ot 'hndrical shape middle part and oil reduced dial'neter at its end into wl'iich was titted a filling coir sisting of a. permeable lion'iogeneous mass of metal of a resilient clnjiracter such as very narrov and thin strips oi flexible metal, on closed in a reticulated metal bus: in order E prevent the filling from bein con'ipress d towards the outlet end of the SllGl'lllGl. by the impact s, it w proposed in 'th No. hoiihtii' to provide an inner casing triiir'neniely divisible into two approximateiy conical shells each having at its base an annular enlarge ment to lit into sockets in the outer casing, each ol' the said shells being perforated, and the filling being enclosed within the said inner casing. .lhis arrangeinent, however, reduced the sluice within the silencer body available lor containiinz the filling, and it is the object ol the present invention to minimine such rcdiuiion while retaining the advantages of the inner casing.

:xccording to the present ii'ivention a per torated metal cup is inserted into the transversely divisil'ile silencer body, into which it fits at or near the inlet end, against which cup the bag containing the strip metal or other lilling is packed. A perform'ed. pa -aboloidal, conical, or sin'iilarly shaped shell. or inner casing ot the kind describi-id in the specification. of Patent No. 'l.,575,657 is secured within the silencer with its apex directed towards the outlet to receive the other end ol? the filling. The said. shell may be secured in position by means of a tlange ei'itering between the opposing rims or flanges ol the separate parts of the silencer body in the manner described in the specification of Patent No. 1,575,657. The bagcan thus be of greater capacity than that previously used. A large portion of the surface of the filling bag is thus in contact with the interior of the silencer body, and the gases enter and traverse the filling longitudinally,

25,215, and in Great Britain June 12, 1925.

the silenm-ur casing are indicated at A and B, the part A being; the one intended to be secured on the exhaust pipe. E indicates a tapered shell or inner casing hat ingits apex pointing toward the outlet and an enlargement e at its base secured within the rim oi the casing B, this shell E having perlorations at c A. perforated metal cup 1'1 is fitted at the shoulder a of the casii'ig A to overlap the end of the l'illin bag. 'lhe filling ll contained in a reticulatial metal bag K is press'id into the casing; A so that it against the can ll, after which. the shell E and casing 5 are placed in position and the later secured by the ring; 0 fitting over the enlarged. riins a, o of the casing members A and B, which ring; is then tightenec by means of a wing nut at o. The gases passing through the cup H traverse the filling longitudinall and escape through the perforations e and thence through the silencer outlet if.

What I claim and desire to secure by Letters Patent ot' the United States is 1. In a silencer tor gniseous currents, coinprisin r a body portion built of readily detachable sections, said body portion l'iaving a reduced neck at each end, and a filling consisting oi. a permeable honiogenous tan.- p lcd, nrass o'l. very narrow and thin ribbons of flexible metallic material enclosed in a metal bag made of toraininous reticulated sheet material adapted to lit bodily into the said body portion, the con'ibination there with of a rigid perforated inetal cup in serted into the neck at the end of said body at which the uses enter, the convex side of said cup facing the incomin gasesv 2. In a silencer for gaseous currents, COI11- prising a body portion built oi? readily detachable sections, said body portion hav ing a reduced neck at each end, and a filling consisting of a permeable homogenous tangled mass of very narrow and thin ribbons of flexible metallic material enclosed in a metal bag made of foraminous reticulated sheet material adapted to fit bodily into the said body ortion, the combination therewith of a rigid. perforated metal cup in serted into the neck at the end of said body at which the gases enter, the convex side of said cup facingthe incoming gases and an additional perforated metal member located between the filling and the outlet end of the silencer body.

3. 111 a silencer for gaseous currents comprising a body portion built of readily detachable sections, said body portion having: a reduced neck at each end, and a filling consisting of a permeable homogenous tangled mass of very narrow and thin ribbons 0t flexible metallic material enclosed in a metal bag" made of i'oraminous reticulated sheet material adapted to tit bodily into said body portion, the combination therewith ot a rigid perforated metal cup inserted into the end of said body at which the gases enter and of a perforated approximately conical shell secured within the silencer and adjacent the outlet end thereof with ite apex directed towards the outlet.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3112007 *Nov 1, 1961Nov 26, 1963Arvin Ind IncSilencing element for exhaust gas conduit
US3115209 *May 11, 1960Dec 24, 1963Edward A BembinsterMuffler
US4324314 *Sep 30, 1980Apr 13, 1982Ross Operating Valve CompanyMuffler
US4655317 *May 16, 1985Apr 7, 1987Autoipari Kutato es Fejlesztu VallalatSound damping device, preferably for reducing the noise of blow-off valves
US4947957 *Jun 16, 1989Aug 14, 1990Multiform Desiccants, Inc.Regenerable desiccant cartridge for automotive muffler
US4993512 *Sep 9, 1988Feb 19, 1991Glaenzer SpicerExhaust duct part in particular for an internal combustion engine
US5036948 *Jan 5, 1990Aug 6, 1991Heidelberger Druckmaschinen AgSound absorption device or muffler for blow nozzles
US6241043 *Apr 30, 1999Jun 5, 2001Johannes Ulrich GoertzMuffler insert and process for the production thereof
EP1291593A2 *Aug 29, 2002Mar 12, 2003Matsushita Electric Industrial Co., Ltd.Silencer for air conditioner
U.S. Classification181/258
International ClassificationF01N1/10, F01N1/24, F01N1/08
Cooperative ClassificationF01N1/10, F01N1/082, F01N1/24
European ClassificationF01N1/10, F01N1/08C, F01N1/24