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US1730869A - Exhaust system for internal-combustion engines - Google Patents

Exhaust system for internal-combustion engines Download PDF

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Publication number
US1730869A
US1730869A US26316028A US1730869A US 1730869 A US1730869 A US 1730869A US 26316028 A US26316028 A US 26316028A US 1730869 A US1730869 A US 1730869A
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Prior art keywords
exhaust
gases
pipe
line
end
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
David H Wells
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INT MOTOR CO
INTERNATIONAL MOTOR Co
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INT MOTOR CO
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00Silencing apparatus characterised by method of silencing
    • F01N1/06Silencing apparatus characterised by method of silencing by using interference effect
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/06Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
    • F02M31/08Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air the gases being exhaust gases
    • F02M31/087Heat-exchange arrangements between the air intake and exhaust gas passages, e.g. by means of contact between the passages
    • F02M31/093Air intake passage surrounding the exhaust gas passage; Exhaust gas passage surrounding the air intake passage
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Technologies for the improvement of indicated efficiency of a conventional ICE
    • Y02T10/126Treating fuel, air or air/fuel mixture

Description

Oct. 8, 1929. D. H. WELLS 1,730,869

EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINES Filed March 1928 Patented Oct. 8, 1929 I UNITED STATES PATENT OFFICE DAVID H. WELLS, OF FLUSHING, NEW YORK, ASSIGNOR TO INTERNATIONAL MOTOR GQMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE EXHAUST SYSTEM FOR INTERNAL-COMBUSTION ENGINES Application filed March 20, 1928.

This invention relates to mufflers for internal combustion engines and combines with an old form of niuflier, structural features which serve to reduce the exhaust noise materially, as well as to increase the rate of flow of the exhaust gases which have been bypassed for use in the carbureter vaporizer.

The main exhaust line from the manifold is introduced into the mufiler at such a point that the wave impulses from its gases will tend to destroy the wave impulses from the gases introduced into the muffler at another point by the exhaust line extending from the carbureter vaporizer. In their continued flow, and before they are exhausted, the gases from the main exhaust line are introduced into the mufller and pass into a final exhaust pipe, the suction resultingfrom such flow inducing a more rapid flow of gases through the auxiliary exhaust line from the vaporizer. The exhaust from the body heaters may also be introduced into the mufller and in such case afford a further destructive influence on the wave impulses as well as increase the suction in the auxiliary exhaust line.

The preferred mufiler construction and exhaust connections will be described more fully in connection with the embodiment shown in the accompanying drawings,

wherein Figure 1 is an elevation of a vehicle chassis provided with a muffler and exhaust connections in accordance with the present in vention.

Figure 2 is a view in section, taken on line 22 of Figure 1 and looking in the direction of the arrows.

A conventional vehicle chassis provided with an internal combustion engine is indicated at a. The exhaust manifold of the engine is shown at b and is provided with a bleed pipe 5 for carrying a portion of the exhaust gases to the carbureter vaporizer 0 from the vaporizer. Auxiliary exhaust line P 0 carries the exhaust gases to the mufiler d.

Serial No. 263,160.

The main exhaust line carrying gases from the manifold Z) to the muilier (Z is shown at b and, as indicated in Figure 2, extends within the muilier for a considerable distance. The gases issuing from the main exhaust pipe 6 are bai'l'led at the end of the mu'liler and their direction of travel is reversed in order that they may pass through the pipe 0 which exhausts them to the atmosphere. An opening is formed at f, it being between the end 0 of the auxiliary exhaust pipe 0 and the mouth 6 of the pipe 6. The arrows within the muffler indicate the flow of the main exhaust gases. Pipe 6 carries the exhaust gases from all of the exhaust lines to the atmosphere through the flare 6 A connection for the cylinder exhaust may be made at g and the gases from this exhaust contribute to the quantity passing through the opening f resulting in a greater suction created within the nozzle 0 It will be apparent that the suction created at the end of the auxiliary exhaust pipe 0 materially increases the flow of exhaust gases therethrough and improves the vaporizing efiect of the carbureter vaporizer 0. In addition to this effect, the plurality of streams of exhaust gases through the several pipes have different velocities, the velocity of the main exhaust stream being the highest. Considered as wave impulses these gases have different frequencies and being out of phase with each other tend to destroy the wave impulses which ordinarily result in the noise of the exhaust transmitted from the metallic parts. This results in a quieter mui'ller action and provides a far more desirable operation of the engine.

Although the invention has been described in connection with the specific showing of the accompanying drawings, it is not to be limited save as defined in the appended claim.

I claim as my invention:

An exhaust system including a main exhaust line, an auxiliary exhaust line, a muffler having an inlet and a discharge end, the lines being connected to the inlet end independently, one of the lines extending in proximity to the discharge end of the muffler, an outlet pipe extending Within the Inufiler, in proximity to the inlet end there- OI", and mounted in proximity to the end of the auxiliary pipe, whereby the flow of gases between the ends of the pipes Will cause an increase in the flew through the auxiliary pipe and the noise of the explosions in the niufi er deadened.

This specification signed this 15th day of 15 March, A. D. 1928.

DAVID H. WELLS.

US1730869A 1928-03-20 1928-03-20 Exhaust system for internal-combustion engines Expired - Lifetime US1730869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1730869A US1730869A (en) 1928-03-20 1928-03-20 Exhaust system for internal-combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1730869A US1730869A (en) 1928-03-20 1928-03-20 Exhaust system for internal-combustion engines

Publications (1)

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US1730869A true US1730869A (en) 1929-10-08

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US1730869A Expired - Lifetime US1730869A (en) 1928-03-20 1928-03-20 Exhaust system for internal-combustion engines

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4265332A (en) * 1979-06-21 1981-05-05 Fmc Corporation Heat extracting muffler system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4265332A (en) * 1979-06-21 1981-05-05 Fmc Corporation Heat extracting muffler system

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