US1732909A - Combination heater and muffler construction - Google Patents

Description

Oct. 2v2, 1929. Q. G. NQBLITT r AL colINA'rIoN HEATER AND MUFFLER CONSTRUCTION Filed Dec. 27. 1926 r. ffm .L MK w 0 BER E T a n NNHP W. J vT Na T I n K www U @um V.. B

i Patented a. 22, 1929 .UNITED AsfrATa-s PATENT OFFICE QUINTIN G. NOBLIT'I, ALaw A nEEvEs, ANI) IItANx II. sPAnIIs, OI'l INDIANAPOLIS,

INDIANA, AssIeNoBs To INDIANAPOLIS :PUMP s TUBE OOMPANY,OF INDIAN- APOLIS, INDIANA, A CORPORATION.

COMBINATION HEATER ANI) norman, CONSTRUCTION Application mea December 27, 1926. serial No..157,192.

This invention relates to a combination heater and muffler.A

The chief objectlof this invention is to pro- -vide a muilier of such construction that in addition to servin its normal purpose of muiling the wexplosive sounds of an internal combustion engine, said muiier `is adapted to heat air passing 'thereovr and under confinement, said heated air thereupon being suitable lfor vehicle compartment heating. l

Another object of the invention is to construct the combination heater and muffler such that during such seasons of the year when heating is not ldesired the heater will be self Ventilating. One` feature of the combination heating muier consists .in the specific construction of the combination heating muler, and another feature consists in the specific construction of the ventible air heating casing andv the third feature of the invention consists in the association of the two such that a return bend passage is obtained.

Another' feature of the invention consists in the arrangement of the device such that it may be readily supported upon a motor4 vehicle and the heating muier readily substi` tuted for the standard muler provided. The full nature of the invention will be understood. from the accompanyingA drawings and the following description and claims:

In the drawings Fig. 1 is a side'elevational view of a portion of the motor vehiclev showing the internal combustion engine and -heating system. Fig. 2 is an enlarged longitudinal sectional view throughthe heafng system, the exhaust lincluding the mulil r` being shown in elevation. Fig. 3 is a top plan view of the exhaust heating muffler with a portion combustion engine shownfin quarter section. Fig. 4 is a 'trans--vl verse sectional view taken on lines 4-4 of Figs.2and3.v t In the drawings 10 indicates an Internal having an exhaust 11. The motor vehicle includes 'the dash 12, toeboard 13 and ioor board 14as well as the step supporting bracket 15. All of the forel going is of the usual construction.

The details of the combination heating muler are shown in all of the figures an able by the outlet 18 of the muffler and is rigidly secured thereto by suitable/means such as the set screwV or rivet 23.|

The muffler is constructed such that it is not only adapted `to serve as a muliler and thereby replace the standard muffler construction provided, but it serves as an air heater-as well. The body portion 16. includes the central chamber 24 which. extends from the inlet 17 to the Outlet 18, but direct passage therethrough is, prevented by the inwardly extending bailes 25 terminating short of the middle lof the passage and outwardly extending interposed baflies 26 extending towards thesides from the center, all of said lbaffles being connected at the tops and bottoms tothe top and bottom portion of the casing. The casing upon 'its upper and lower exterior surface is shown providedL with parallel ribs orv heat radiating surfaces 2,7 and upon its lateral faces is provided with fiat liangesor surfaces 28, the same being laterally aperltured at the ends as at 29y for heater casing anchorage. The heater casing consists of U or channel-shaped sheet metal members 30 formation, see Fig. 4, by suitable means such as the screws 31 receivable bythe threaded Openings 29. The continuation ofthe flanges from 4end to end insures a partition arrangement forming an upper and- -lower chamber channel member has' an [angular extending portion 33 including an. a rture 33a that receives the outlet 18.0f t e-muiller. The screwl bolts 32 at this .end of the heater rigidly elarnp a U-sha ed strap closure 34 1n closed position, see igs. 1 and 2, to form a return ,bend passage Ithroughthe heater casing. After loosening bolts ,32 and tilting the and 31, the same having over-lapping par-f allel portions positionable adJacent the or passage in the heater casing.l Theupper U-shaped strap counterclockwise until it lies parallel to the lower portion 30 it is secured `in abuttable relation theretopermitted by the elongated slot 35 in the member 34 venting the 5 air passage.

. heater casing. It passessthrough the lower passage, .engages .the delecting ventilator 'go valve 34 and the angular portion 33 and returns along the upper cliannel'formed between the upper heater casing member3l and the top ofthe muffler. The upper member l31v -at 4its upper -end includes a rectangula 25 outlet 40 extendinglaterally of the body portion. The open end of the upper end of the member 31 .isclosed by a defiecting Valve 41 pivotally supported at 42, and this valve when in the position shown in Fig..2 serves as a closure for the channel and insures discharge of the heated air through the outlet '40' and prevents its discharge. through the open upper .end of theheater. valve member 41 is tilted clockwise, this substantiallyloses the outlet and opens the operi end of the heater. The bolts 42 are adapted to clampingly secure, as well as pivotallesupp'ort-fo-said adjustment, the valve mem r 41. Thus,when the d electing valve 34 and the deiecting valve 41 are positioned in open relation, to wit, thatoppositely from conditions shown in'Fig. 2, free ventilation When the a hot air discharge adjacent the air intake and in the other channel formed by the muffier within the casing, and a valve means adjacent thereto for venting the passage between the first-mentioned valve and thedischarge and for controlling said discharge.

2. A combination heating mutller, comprising a mufling member for the exhaust of an engine, an air heating casing peripherally enveloping the muilling member, said easing at one end including an air intake and an air discharge, lateral walls projecting outwardl from the muliling member to the casing, said .Walls and member constituting a partition for forming a pair of channels in the casing, one channel communicating with the discharge and the adjacent end of the other channel communicating with the intake, the opposite ends of said channels communicating with each other, and a combination deiiecting valve positioned adjacent the lastmentioned channel communication for venting the same.

In witness whereof, we have hereunto affixed our signatures. l

QUINTIN G. NOBLITT.

LEW A. REEVES. FRANK H. SPARKS.

will be obtained through lthe lieatercasing and no heated air will be discharged through the outlet 40 and thus vventing the heater.

JWhen Vthe delecting valves are positioned as shown in Fig. 2 the heated air is causedto 'pass over the muiiier surfaces, become heated and thereupon be discliar ed through areg` ister construction 43 suita lyfmounted in the los toe-board 13 aiidhave a telescopic conneci tionwith the outlet 40. This telescopic connection permits of adjustment for each vindividual vehicle. A 'plurality of heat yradiatiiig tinsf27 are` provided to insure the rapid transfer ofrheat {from the muier to the air passing thereover, and not onlyserve to direct the flow of the air longitudinally of the muiiler and the heater casing, but also revent to "a considerable extent'local circu- Fation. in the heater.

The invention claimed is:

1. A combination hetingmuiiier comprising a muiing member for vthe exhaust of' an engine', a casing -peripherally envelopingl said

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